- Yale Vascular SurgeryYale Physicians Building800 Howard Avenue, Fl 2New Haven, CT 06519
Cassius Iyad Ochoa Chaar, MD, MPH, MS, RPVI
Vascular & Endovascular Surgery
Telehealth is available
Patient type treated
Adult
Accepting new patients
Yes
Referral required
From patients or physicians
Board Certified in
Surgery General and Surgery Vascular
Biography
Cassius Iyad Ochoa Chaar, MD, MPH, MS, is a vascular surgeon who treats problems affecting the circulatory system, ranging from painful varicose veins to life-threatening aneurysms. He has special expertise in treating peripheral artery disease, which can block blood flow through the arteries in the arms and legs. Dr. Chaar is an expert in lower extremity limb preservation, particularly in diabetic patients.
“The most exciting breakthrough in vascular surgery has been the evolution of minimally invasive surgery, which has transformed the specialty completely,” Dr. Chaar says. Dr. Chaar says that he is now able to treat the vast majority of his patients with minimally invasive endovascular surgeries, which involve accessing a damaged artery by puncturing it and inserting a wire and a catheter. But he also still performs traditional open surgeries—with long incisions that allow him to view and treat problems directly. He sometimes uses a combination of approaches to treat complex cases.
An associate professor of vascular surgery at Yale School of Medicine, Dr. Chaar says he was motivated to go into medicine when he was growing up and saw the positive impact a doctor had on his grandmother, who had complicated medical problems. “I wanted to be that person who touched peoples’ lives and made them better,” he says.
Dr. Chaar is the 2020 recipient of the Charles W. Bohmfalk Prize for teaching in the clinical sciences at the Yale School of Medicine. He is also the 2023 recipient of the John N. Forrest, Jr Mentorship Award at the Yale School of Medicine.
Dr. Chaar speaks Arabic, English, French and Spanish.
Titles
- Associate Professor of Surgery (Vascular)
Education & Training
- MPHYale School of Public Health , Biostatistics (2023)
- FellowUniversity of Pittsburgh Medical Center (2011)
- Chief ResidentYale New Haven Hospital (2009)
- ResidentYale New Haven Hospital (2008)
- Post-Doctoral research fellowCleveland Clinic Foundation (2004)
- MDAmerican University of Beirut (2002)
- MSAmerican University of Beirut (2000)
Languages Spoken
- العربية (Arabic)
- English
- Français (French)
- Español (Spanish)
Additional Information
Honors & Recognitions
- John N Forrest, Jr Mentorship Award: Yale School of Medicine (2023)
- Quality Improvement Grant : Vascular Study Group of New England (2023)
- SVS Clinical Research Seed Grant: Society for Vascular Surgery (2021)
- VSGNE Quality Improvement Grant: Vascular Study Group of New England (2021)
- Juzzo Traveling fellowship: American Venous Forum (2021)
- CT Innovations Biopipeline Award: CT Innovations (2020)
- Academic Development Award: Department of Surgery (2020)
- Charles W Bohmfalk Award: Yale School of Medicine (2020)
- EJ Wylie Traveling Fellowship: Society for Vascular Surgery (2020)
- Quality Improvement Award: Vascular Student Group of New England (VSGNE) (2019)
Publications
- Damara F, Alameddine D, Slade M, Cardella J, Tonnessen B, Guzman R, Ochoa Chaar C. Arterial dissection during peripheral vascular interventions. Journal Of Vascular Surgery 2023, 79: 339-347.e6. PMID: 37838217, DOI: 10.1016/j.jvs.2023.10.004.
- The Impact of Ejection Fraction on Major Adverse Limb Events after Lower Extremity RevascularizationJamil Y, Huttler J, Alameddine D, Wu Z, Zhuo H, Mena-Hurtado C, Velazquez E, Guzman R, Ochoa Chaar C. The Impact of Ejection Fraction on Major Adverse Limb Events after Lower Extremity Revascularization. Annals Of Vascular Surgery 2023, 98: 210-219. PMID: 37802138, DOI: 10.1016/j.avsg.2023.08.009.
- Bai H, Gokani V, Storch J, Kibrik P, Aziz F, Sachdev U, Fukaya E, Ochoa Chaar C, Obi A, Ting W. A comparison of below-knee vs above-knee endovenous ablation of varicose veins. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2023, 12: 101679. PMID: 37708939, DOI: 10.1016/j.jvsv.2023.08.018.
- Jamil Y, Huttler J, Ochoa Chaar C. Endovascular Recanalization and Stent Graft Placement for a Chronically Occluded Prosthetic Graft to Treat Critical Limb Ischemia. Journal Of Vascular And Interventional Radiology 2023, 35: 143-145. PMID: 37704039, DOI: 10.1016/j.jvir.2023.09.006.
- Saab K, Brahmandam A, Brackett A, Desai M, Dardik A, Guzman R, Chaar C. Systematic review of inferior vena cava atresia. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2023, 11: 1253-1264. PMID: 37453547, DOI: 10.1016/j.jvsv.2023.07.002.
- Siracuse J, Farber A, Menard M, Conte M, Kaufman J, Jaff M, Kiang S, Ochoa Chaar C, Osborne N, Singh N, Tan T, Guzman R, Strong M, Hamza T, Doros G, Rosenfield K. Perioperative complications following open or endovascular revascularization for chronic limb-threatening ischemia in the BEST-CLI Trial. Journal Of Vascular Surgery 2023, 78: 1012-1020.e2. PMID: 37318428, DOI: 10.1016/j.jvs.2023.05.040.
- Kostiuk V, Chen J, Dahl N, Turner J, Chaar C. Hybrid Revision of Dysfunctional Aneurysmal Arteriovenous Fistulas. Vascular And Endovascular Surgery 2023, 57: 909-913. PMID: 37300698, DOI: 10.1177/15385744231183488.
- Kim T, Schneider P, Iannuzzi J, Ochoa Chaar C. High-Risk Characteristics for Clinical Failure after Isolated Femoropopliteal Peripheral Vascular Interventions. Annals Of Vascular Surgery 2023, 96: 253-260. PMID: 37088359, DOI: 10.1016/j.avsg.2023.04.010.
- Satam K, Aboian E, Cardella J, Slade M, Nassiri N, Dardik A, Guzman R, Ochoa Chaar C. The management of patients with popliteal artery aneurysms presenting with acute limb ischemia. Journal Of Vascular Surgery 2023, 78: 506-513. PMID: 37086824, DOI: 10.1016/j.jvs.2023.04.019.
- Chan S, Weininger G, Kozhimala M, Sumpio B, Levine L, Harris S, Zheng S, Ochoa Chaar C, Guzman R, Sumpio B. Utility of Hook Sign in the Diagnosis of Median Arcuate Ligament Syndrome. Annals Of Vascular Surgery 2023, 94: 165-171. PMID: 37023920, DOI: 10.1016/j.avsg.2023.03.018.
- Summers S, Rastogi V, Yadavalli S, Wang S, Schaller M, Jones D, Ochoa Chaar C, de Bruin J, Verhagen H, Schermerhorn M. The association between diabetes mellitus and its management with outcomes following endovascular repair for descending thoracic aortic aneurysm. Journal Of Vascular Surgery 2023, 78: 313-323. PMID: 36966848, DOI: 10.1016/j.jvs.2023.02.024.
- Lee S, Ali S, Cardella J, Turner J, Guzman R, Dardik A, Ochoa Chaar C. Carbon dioxide angiography during peripheral vascular interventions is associated with decreased cardiac and renal complications in patients with chronic kidney disease. Journal Of Vascular Surgery 2023, 78: 201-208. PMID: 36948278, DOI: 10.1016/j.jvs.2023.03.029.
- Bellamkonda K, Zogg C, Nassiri N, Sadeghi M, Zhang Y, Guzman R, Ochoa Chaar C. Characteristics and 1-year outcomes of patients with rupture of small abdominal aortic aneurysms. Journal Of Vascular Surgery 2023, 77: 1649-1657. PMID: 36796595, DOI: 10.1016/j.jvs.2023.02.003.
- Satam K, Aurshina A, Zhuo H, Zhang Y, Cardella J, Aboian E, Tonnessen B, Guzman R, Ochoa Chaar C. Incidence and Significance of Deep Venous Reflux in Patients Treated with Saphenous Vein Ablation. Annals Of Vascular Surgery 2023, 91: 182-190. PMID: 36693564, DOI: 10.1016/j.avsg.2022.11.034.
- Kozhimala M, Chan S, Weininger G, Sumpio B, Levine L, Harris S, Zheng S, Longo W, Ochoa Chaar C, Guzman R, Sumpio B. Prevalence and Characteristics of Patients with Median Arcuate Ligament Syndrome in a Cohort Diagnosed with Celiac Artery Compression. Journal Of The American College Of Surgeons 2022, 236: 1085-1091. PMID: 36476640, DOI: 10.1097/xcs.0000000000000500.
- Barahona M, Tonnessen B, Cardella J, Shirali A, Perez-Lozada JC, Chaar C. Venous outflow banding for maturation of a percutaneous arteriovenous fistula. Journal Of Vascular Surgery Cases And Innovative Techniques 2022, 8: 42-44. PMID: 35079669, PMCID: PMC8777140, DOI: 10.1016/j.jvscit.2021.12.007.
- Bikdeli B, Jiménez D, del Toro J, Piazza G, Rivas A, Fernández‐Reyes J, Sampériz Á, Otero R, Suriñach J, Siniscalchi C, Martín‐Guerra J, Castro J, Muriel A, Lip G, Goldhaber S, Monreal M, Monreal M, Prandoni P, Brenner B, Farge‐Bancel D, Barba R, Di Micco P, Bertoletti L, Schellong S, Tzoran I, Reis A, Bosevski M, Bounameaux H, Malý R, Verhamme P, Caprini J, Bui H, Adarraga M, Agud M, Aibar J, Aibar M, Amado C, Arcelus J, Baeza C, Ballaz A, Barba R, Barbagelata C, Barrón M, Barrón‐Andrés B, Blanco‐Molina Á, Botella E, Camon A, Cañas I, Casado I, Castro J, Chasco L, Criado J, de Ancos C, de Miguel J, del Toro J, Demelo‐Rodríguez P, Díaz‐Peromingo J, Di Campli M, Díez‐Sierra J, Domínguez I, Escribano J, Falgá C, Farfán‐Sedano A, Fernández‐Capitán C, Fernández‐Reyes J, Fidalgo M, Flores K, Font C, Font L, Francisco I, Gabara C, Galeano‐Valle F, Galindo D, García M, García‐Bragado F, de Herreros M, García‐Hernáez R, García‐Mullor M, García‐Raso A, Gavín‐Sebastián O, Gil‐Díaz A, Gómez‐Cuervo C, Grau E, Guirado L, Gutiérrez J, Hernández‐Blasco L, Hernando E, Herreros M, Jara‐Palomares L, Jaras M, Jiménez D, Jiménez R, Joya M, León J, Lima J, Llamas P, Lobo J, López‐Jiménez L, López‐Miguel P, López‐Núñez J, López‐Reyes R, López‐Ruiz A, López‐Sáez J, Lorenzo A, Madridano O, Maestre A, Marchena P, del Pozo M, Martín‐Guerra J, Martín‐Martos F, Mella C, Mellado M, Mercado M, Moisés J, Monreal M, del Valle Morales M, Muñoz‐Blanco A, Muñoz‐Rivas N, Navas M, Nieto J, Núñez‐Fernández M, Obispo B, Olid M, Olivares M, Orcastegui J, Ortega‐Michel C, Osorio J, Otalora S, Otero R, Parra P, Parra V, Pedrajas J, Pellejero G, Porras J, Portillo J, Riera‐Mestre A, Rivas A, Rivera‐Civico F, Rodríguez‐Chiaradía D, Rodríguez‐Cobo A, Rodríguez‐Matute C, Rogado J, Roig S, Rosa V, Ruiz‐Artacho P, Ruiz‐Giménez N, Ruiz‐Ruiz J, Ruiz‐Sada P, Salgueiro G, Sánchez‐Martínez R, Sánchez‐Muñoz‐Torrero J, Sancho T, Sirisi M, Soler S, Suriñach J, Tirado R, Torres M, Tolosa C, Trujillo‐Santos J, Uresandi F, Valero B, Valle R, Vela J, Vidal G, Villares P, Zamora C, Gutiérrez P, Vázquez F, Engelen M, Vanassche T, Verhamme P, Hirmerova J, Malý R, Salgado E, Abdallah N, Bertoletti L, Bura‐Riviere A, Crichi B, Debourdeau P, Olivier E, Falvo N, Farge‐Bancel D, Galliazzo S, Helfer H, Mahé I, Moustafa F, Poenou G, Schellong S, Braester A, Brenner B, Tzoran I, Bilora F, Bucherini E, Ciammaichella M, Di Micco P, Imbalzano E, Maida R, Mastroiacovo D, Pace F, Pesavento R, Pomero F, Prandoni P, Quintavalla R, Rocci A, Romualdi R, Siniscalchi C, Tufano A, Visonà A, Zalunardo B, Gibietis V, Kigitovica D, Skride A, Fonseca S, Martins F, Meireles J, Bosevski M, Bounameaux H, Mazzolai L, Bikdeli B, Caprini J, Tafur A, Ochoa‐Chaar C, Weinberg I, Wilkins H, Bui H. Association Between Preexisting Versus Newly Identified Atrial Fibrillation and Outcomes of Patients With Acute Pulmonary Embolism. Journal Of The American Heart Association 2021, 10: e021467. PMID: 34459215, PMCID: PMC8649245, DOI: 10.1161/jaha.121.021467.
- Chan SM, Brahmandam A, Cardella JA, Elefteriades J, Setaro JF, Mangi AA, Chaar C. Aortic remodeling and competitive flow after surgical treatment of aortic dissection. Journal Of Vascular Surgery Cases And Innovative Techniques 2021, 7: 404-407. PMID: 34278070, PMCID: PMC8261546, DOI: 10.1016/j.jvscit.2021.05.009.
- Attaran R, Bhalla A, Mena-Hurtado C, Ochoa-Chaar C. Correlation Between Great Saphenous Vein Diameter, Length of Treatment Zone With Improvement in Symptoms after Ablation. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2021, 9: 554-555. DOI: 10.1016/j.jvsv.2020.12.049.
- Chen JF, Chaar C, Cardella J, Dardik A, Guzman RJ, Nassiri N. Emergent percutaneous chimney endovascular aortic repair of a secondary aortoenteric fistula in the setting of a solitary kidney. Journal Of Vascular Surgery Cases And Innovative Techniques 2021, 7: 253-257. PMID: 33997566, PMCID: PMC8095080, DOI: 10.1016/j.jvscit.2021.01.009.
- Chan SM, Lee A, Roy B, Chaar CIO. Diagnostic and Technical Challenges in the Care of a Complex Patient With Post-Thrombotic Syndrome. Vascular And Endovascular Surgery 2021, 55: 515-518. PMID: 33563142, DOI: 10.1177/1538574421995020.
- Lee SR, Dardik A, Chaar CIO. Strategies to Minimize Iodinated Contrast Volume in Patients with Chronic Kidney Disease Undergoing Peripheral Vascular Interventions. Annals Of Vascular Surgery 2021, 73: 490-495. PMID: 33556507, DOI: 10.1016/j.avsg.2021.01.081.
- Aurshina A, Huber S, Deng Y, Attaran R, Nassiri N, Dardik A, Ochoa Chaar CI. Correlation of venous symptoms with iliac vein stenosis on magnetic resonance imaging. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2020, 9: 1291-1296.e1. PMID: 33387666, DOI: 10.1016/j.jvsv.2020.12.077.
- Lumas S, Hsiang W, Akhtar S, Ochoa Chaar CI. Regional Anesthesia is Underutilized for Carotid Endarterectomy Despite Improved Perioperative Outcomes Compared with General Anesthesia. Annals Of Vascular Surgery 2020, 73: 336-343. PMID: 33373769, DOI: 10.1016/j.avsg.2020.11.035.
- Aurshina A, Cardella J, Sumpio B, Zhuo H, Zhang Y, Dardik A, Ochoa Chaar CI. Location of reflux in the saphenous vein does not affect outcomes of vein ablation. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2020, 9: 932-937. PMID: 33249108, DOI: 10.1016/j.jvsv.2020.11.013.
- Kim TI, Kiwan G, Mohamedali A, Zhang Y, Dardik A, Guzman RJ, Ochoa Chaar CI. Multiple Reinterventions for Claudication are Associated with Progression to Chronic Limb-Threatening Ischemia. Annals Of Vascular Surgery 2020, 72: 166-174. PMID: 33227462, DOI: 10.1016/j.avsg.2020.10.004.
- Kim TI, Kiwan G, Mohamedali A, Zhang Y, Mena-Hurtado C, Mojibian H, Guzman RJ, Ochoa Chaar CI. Outcomes of treatment with paclitaxel-coated devices for peripheral arterial disease. Journal Of Vascular Surgery 2020, 73: 911-917. PMID: 33038480, DOI: 10.1016/j.jvs.2020.08.146.
- Kim TI, Aboian E, Fischer U, Zhang Y, Guzman RJ, Ochoa Chaar CI. Lower Extremity Revascularization for Chronic Limb-Threatening Ischemia among Patients at the Extremes of Age. Annals Of Vascular Surgery 2020, 72: 517-528. PMID: 32927042, DOI: 10.1016/j.avsg.2020.08.135.
- Ochoa Chaar CI, Makuch R. Emergency Use Authorization for Remdesivir and Its Potential Implications. Therapeutic Innovation & Regulatory Science 2020, 55: 270-271. PMID: 32880853, PMCID: PMC7471551, DOI: 10.1007/s43441-020-00212-5.
- Anantha-Narayanan M, Sheikh AB, Nagpal S, Jelani QU, Smolderen KG, Regan C, Ionescu C, Ochoa Chaar CI, Schneider M, Llanos-Chea F, Mena-Hurtado C. Systematic review and meta-analysis of outcomes of lower extremity peripheral arterial interventions in patients with and without chronic kidney disease or end-stage renal disease. Journal Of Vascular Surgery 2020, 73: 331-340.e4. PMID: 32889074, DOI: 10.1016/j.jvs.2020.08.032.
- Bellamkonda KS, Yousef S, Nassiri N, Dardik A, Guzman RJ, Geirsson A, Ochoa Chaar CI. Trends and outcomes of thoracic endovascular aortic repair with open concomitant cervical debranching. Journal Of Vascular Surgery 2020, 73: 1205-1212.e3. PMID: 32861861, DOI: 10.1016/j.jvs.2020.07.103.
- Bellamkonda KS, Yousef S, Zhang Y, Dardik A, Geirsson A, Chaar CIO. Endograft type and anesthesia mode are associated with mortality of endovascular aneurysm repair for ruptured abdominal aortic aneurysms. Vascular 2020, 29: 155-162. PMID: 32787557, DOI: 10.1177/1708538120947859.
- Kim TI, Abougergi MS, Guzman RJ, Ochoa Chaar CI. Costs and complications of hospital admissions for inferior vena cava filter malfunction. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2020, 9: 315-320.e4. PMID: 32791305, DOI: 10.1016/j.jvsv.2020.08.002.
- Brahmandam A, Gholitabar N, Zhang Y, Wang X, Cardella J, Sarac T, Ochoa Chaar CI. The State of Vascular Surgery Interest Groups in North America. Annals Of Vascular Surgery 2020, 71: 230-236. PMID: 32781261, DOI: 10.1016/j.avsg.2020.07.044.
- Kim TI, Chaar CIO, Guzman RJ, Fischer UM. Multiple duplications of the superficial femoral artery – Case report and review of the literature. Vascular 2020, 29: 116-118. PMID: 32698701, DOI: 10.1177/1708538120943317.
- Brahmandam A, Gholitabar N, Cardella J, Nassiri N, Dardik A, Georgi M, Ochoa Chaar CI. Discrepancy in Outcomes after Revascularization for Chronic Limb-Threatening Ischemia Warrants Separate Reporting of Rest Pain and Tissue Loss. Annals Of Vascular Surgery 2020, 70: 237-244. PMID: 32659417, DOI: 10.1016/j.avsg.2020.06.057.
- Ochoa Chaar CI, Kim TI, Shebl FM, Dardik A. The Use of Embolic Protection Devices during Lower Extremity Peripheral Vascular Interventions. Annals Of Vascular Surgery 2020, 69: 9-16. PMID: 32554197, DOI: 10.1016/j.avsg.2020.06.014.
- Bai H, Fereydooni A, Zhuo H, Zhang Y, Tonnessen B, Guzman RJ, Ochoa Chaar CI. Comparison of Atherectomy to Balloon Angioplasty and Stenting for Isolated Femoropopliteal Revascularization. Annals Of Vascular Surgery 2020, 69: 261-273. PMID: 32512112, DOI: 10.1016/j.avsg.2020.05.019.
- Ochoa Chaar CI, Gholitabar N, DeTrani M, Jorshery S, Zhuo H, Zhang Y, Dardik A. The Reintervention Index: A New Outcome Measure for Comparative Effectiveness of Lower Extremity Revascularization. Annals Of Vascular Surgery 2020, 69: 52-61. PMID: 32474144, DOI: 10.1016/j.avsg.2020.05.040.
- Lee SR, Dardik A, Ochoa Chaar CI. Postcontrast Acute Kidney Injury after Peripheral Vascular Interventions in Kidney Transplant Recipients. Annals Of Vascular Surgery 2020, 68: 8-14. PMID: 32428641, DOI: 10.1016/j.avsg.2020.04.057.
- Kim TI, Zhang Y, Guzman RJ, Ochoa Chaar CI. Trends of hospital-based surgery for varicose veins in the elderly. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2020, 9: 146-153.e2. PMID: 32360785, DOI: 10.1016/j.jvsv.2020.04.016.
- Kim TI, Zhang Y, Amin HP, Ochoa Chaar CI. Presentation and outcomes of carotid endarterectomy in active smokers. Journal Of Vascular Surgery 2020, 72: 1720-1727.e1. PMID: 32249043, DOI: 10.1016/j.jvs.2020.02.014.
- Ochoa Chaar CI, Gholitabar N, Detrani M, Jorshery SD, Kim TI, Zhuo H, Zhang Y, Dardik A. Variations in the Management of Claudication in a Tertiary Care Center. Annals Of Vascular Surgery 2020, 67: 395-402. PMID: 32179142, DOI: 10.1016/j.avsg.2020.02.015.
- Aurshina A, Ochoa Chaar CI. Reply. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2020, 8: 337-338. PMID: 32067734, DOI: 10.1016/j.jvsv.2019.11.005.
- Fereydooni A, Zhou B, Xu Y, Deng Y, Dardik A, Ochoa Chaar CI. Rapid increase in hybrid surgery for the treatment of peripheral artery disease in the Vascular Quality Initiative database. Journal Of Vascular Surgery 2020, 72: 977-986.e1. PMID: 32067877, DOI: 10.1016/j.jvs.2019.11.041.
- Fereydooni, A, Dahl, N, Ochoa Chaar C. Technical and Ethical Challenges in the Care of an Independent Nonagenarian with Critical Limb Ischemia. Archives Of Clinical And Medical Case Reports 2020, 04 DOI: 10.26502/acmcr.96550178.
- Turner AD, Chen M, Dahl N, Scoutt L, Dardik A, Ochoa Chaar C. Intraoperative Ultrasound Guidance for Banding of an Arteriovenous Fistula Causing High Cardiac Output Heart Failure. Annals Of Vascular Surgery 2019, 66: 665.e5-665.e8. PMID: 31863947, DOI: 10.1016/j.avsg.2019.12.011.
- Fereydooni A, Ramirez JL, Dossabhoy SS, Brahmandam A, Dardik A, Ochoa Chaar CI. A national post-Match webinar panel improves knowledge and preparedness of medical students interested in vascular surgery training. Journal Of Vascular Surgery 2019, 71: 1733-1740.e5. PMID: 31843302, DOI: 10.1016/j.jvs.2019.08.282.
- Lee SR, Zhuo H, Zhang Y, Dahl N, Dardik A, Ochoa Chaar CI. Risk factors and safe contrast volume thresholds for postcontrast acute kidney injury after peripheral vascular interventions. Journal Of Vascular Surgery 2019, 72: 603-610.e1. PMID: 31843298, DOI: 10.1016/j.jvs.2019.09.059.
- Tsay C, Luo J, Zhang Y, Attaran R, Dardik A, Ochoa Chaar CI. Perioperative Outcomes of Lower Extremity Revascularization for Rest Pain and Tissue Loss. Annals Of Vascular Surgery 2019, 66: 493-501. PMID: 31756416, DOI: 10.1016/j.avsg.2019.11.019.
- Fereydooni A, O'Meara T, Popescu WM, Dardik A, Ochoa Chaar CI. Use of neuraxial anesthesia for hybrid lower extremity revascularization is associated with reduced perioperative morbidity. Journal Of Vascular Surgery 2019, 71: 1296-1304.e7. PMID: 31708304, DOI: 10.1016/j.jvs.2019.07.072.
- Rajaee S, Holder T, Indes JE, Muhs B, Sarac T, Sumpio B, Toll BA, Ochoa Chaar CI. A Pilot Study of a Standardized Smoking Cessation Intervention for Patients with Vascular Disease. Annals Of Vascular Surgery 2019, 61: 91-99.e3. PMID: 31449932, DOI: 10.1016/j.avsg.2019.06.017.
- Ochoa Chaar CI, Gholitabar N, Goodney P, Dardik A, Abougergi MS. One-Year Readmission after Open and Endovascular Revascularization for Critical Limb Ischemia. Annals Of Vascular Surgery 2019, 61: 25-32.e2. PMID: 31376536, DOI: 10.1016/j.avsg.2019.07.003.
- Brahmandam A, Skrip L, Mojibian H, Aruny J, Sumpio B, Dardik A, Sarac T, Ochoa Chaar CI. Costs and complications of endovascular inferior vena cava filter retrieval. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2019, 7: 653-659.e1. PMID: 31307952, DOI: 10.1016/j.jvsv.2019.02.017.
- Ochoa Chaar C, Gholitabar N, Rezek I, Luciano R, Clancy J. Treatment of superior vena cava syndrome with kissing brachiocephalic stents and exchange of pacemaker leads. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2019, 8: 143-144. PMID: 31231057, DOI: 10.1016/j.jvsv.2019.04.009.
- Fereydooni A, Zhou B, Jorshery SD, Deng Y, Dardik A, Chaar CIO. National trends of hybrid lower extremity revascularization in the ACS-NSQIP database. Vascular 2019, 27: 653-662. PMID: 31126228, DOI: 10.1177/1708538119852019.
- Aurshina A, Brahmandam A, Zhang Y, Yang Y, Mojibian H, Sarac T, Ochoa Chaar CI. Patient perspectives on inferior vena cava filter retrieval. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2019, 7: 507-513. PMID: 30850353, DOI: 10.1016/j.jvsv.2018.11.011.
- Jorshery SD, Luo J, Zhang Y, Sarac T, Ochoa Chaar CI. Hybrid surgery for bilateral lower extremity inflow revascularization. Journal Of Vascular Surgery 2019, 70: 768-775.e2. PMID: 30837177, DOI: 10.1016/j.jvs.2018.11.037.
- Hsu C, Brahmandam A, Brownson KE, Huynh N, Reynolds J, Lee AI, Fares WH, Ochoa Chaar CI. Statin therapy associated with improved thrombus resolution in patients with deep vein thrombosis. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2019, 7: 169-175.e4. PMID: 30660579, DOI: 10.1016/j.jvsv.2018.10.020.
- Brahmandam A, Skrip L, Sumpio B, Indes J, Dardik A, Sarac T, Rectenwald J, Chaar CIO. A survey of vascular specialists’ practice patterns of inferior vena cava filter placement and retrieval. Vascular 2018, 27: 291-298. PMID: 30501583, DOI: 10.1177/1708538118815394.
- Jorshery SD, Skrip L, Sarac T, Ochoa Chaar CI. Hybrid femoropopliteal procedures are associated with improved perioperative outcomes compared with bypass. Journal Of Vascular Surgery 2018, 68: 1447-1454.e5. PMID: 30360840, DOI: 10.1016/j.jvs.2018.01.058.
- Ochoa Chaar CI, Aurshina A. Endovascular and Open Surgery for Deep Vein Thrombosis. Clinics In Chest Medicine 2018, 39: 631-644. PMID: 30122186, DOI: 10.1016/j.ccm.2018.04.014.
- Huynh N, Fares WH, Lee AI, Dardik A, Sarac T, Ochoa Chaar CI. Reply. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2018, 6: 560-561. PMID: 29909864, DOI: 10.1016/j.jvsv.2018.03.008.
- DeWane MP, Fares WH, Ochoa Chaar CI. Endovascular Treatment of a Large Iliac Vein Aneurysm and High-Flow Arteriovenous Fistula. Annals Of Vascular Surgery 2018, 53: 266.e5-266.e7. PMID: 29886213, DOI: 10.1016/j.avsg.2018.04.008.
- Ochoa Chaar C, Aurshina A. Endothermal Ablation of Varicose Veins. 2018, 555-566. DOI: 10.1007/978-3-319-65936-7_49.
- Kaltenmeier CT, Erben Y, Indes J, Lee A, Dardik A, Sarac T, Ochoa Chaar CI. Systematic review of May-Thurner syndrome with emphasis on gender differences. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2017, 6: 399-407.e4. PMID: 29290600, DOI: 10.1016/j.jvsv.2017.11.006.
- Aurshina A, Ochoa Chaar C. Mechanochemical Ablation of Superficial Veins. 2017, 133-143. DOI: 10.1007/978-3-319-65226-9_10.
- Brahmandam A, Aurshina A, Ochoa Chaar C. Retrieval of Inferior Vena Cava Filters. 2017, 433-450. DOI: 10.1007/978-3-319-65226-9_33.
- Lee EJ, Dykas DJ, Leavitt AD, Camire RM, Ebberink E, García de Frutos P, Gnanasambandan K, Gu SX, Huntington JA, Lentz SR, Mertens K, Parish CR, Rezaie AR, Sayeski PP, Cromwell C, Bar N, Halene S, Neparidze N, Parker TL, Burns AJ, Dumont A, Yao X, Chaar CIO, Connors JM, Bale AE, Lee AI. Whole-exome sequencing in evaluation of patients with venous thromboembolism. Blood Advances 2017, 1: 1224-1237. PMID: 29296762, PMCID: PMC5728544, DOI: 10.1182/bloodadvances.2017005249.
- Brahmandam AS, Brownson K, Skrip L, Parker T, Indes J, Sarac T, Dardik A, Chaar CI. Management of isolated calf vein thrombosis in cancer patients. Vascular 2015, 24: 64-69. PMID: 25957344, DOI: 10.1177/1708538115584726.
- Ziegler KR, Cruz J, Muhs BE, Indes JE, Sumpio BE, Chaar CI. Iatrogenic Profunda Femoris Stenosis after Superficial Femoral Artery Stenting. The American Surgeon 2014, 80: 155-156. PMID: 24887776, DOI: 10.1177/000313481408000602.
- Chaar CI, Makaroun MS, Marone LK, Rhee RY, Al-Khoury G, Cho JS, Leers SA, Chaer RA. Impact of endovascular options on lower extremity revascularization in young patients. Journal Of Vascular Surgery 2012, 56: 703-13.e1-3. PMID: 22579133, DOI: 10.1016/j.jvs.2012.01.073.
- Chaar CI, Eid R, Park T, Rhee RY, Abu-Hamad G, Tzeng E, Makaroun MS, Cho JS. Delayed open conversions after endovascular abdominal aortic aneurysm repair. Journal Of Vascular Surgery 2012, 55: 1562-9.e1. PMID: 22503183, DOI: 10.1016/j.jvs.2011.12.007.
- Chaar CI, Hirsch SA, Cwenar MT, Rhee RY, Chaer RA, Abu Hamad G, Dillavou ED. Expanding the role of endovenous laser therapy: results in large diameter saphenous, small saphenous, and anterior accessory veins. Annals Of Vascular Surgery 2011, 25: 656-61. PMID: 21724104, DOI: 10.1016/j.avsg.2011.02.031.
- McGillicuddy EA, Chaar CI, Flynn C, Villalona G, Longo WE. Cologastric fistula with a foreign body in a patient with Crohn's disease. The Yale Journal Of Biology And Medicine 2010, 83: 113-7. PMID: 20885896, PMCID: PMC2946122.
- Chaar CI, Fitzgerald TN, Dewan M, Huddle M, Schlosser FJ, Perkal M, Muhs BE, Dardik A. Endovascular aneurysm repair is associated with less malnutrition than open abdominal aortic aneurysm repair. The American Journal Of Surgery 2009, 198: 623-627. PMID: 19887189, PMCID: PMC2774903, DOI: 10.1016/j.amjsurg.2009.07.022.
- Chaar CI, Wexelman B, Zuckerman K, Longo W. Intussusception of the appendix: comprehensive review of the literature. The American Journal Of Surgery 2009, 198: 122-128. PMID: 19249733, DOI: 10.1016/j.amjsurg.2008.08.023.
- Chaar CI, Attanasio P, Detterbeck F. Disruption of the Costal Margin with Transdiaphragmatic Abdominal Herniation Induced by Coughing. The American Surgeon 2008, 74: 350-353. PMID: 18453304, DOI: 10.1177/000313480807400416.
- Safieh-Garabedian B, Ochoa-Chaar CI, Poole S, Massaad CA, Atweh SF, Jabbur SJ, Saadé NE. Thymulin reverses inflammatory hyperalgesia and modulates the increased concentration of proinflammatory cytokines induced by i.c.v. endotoxin injection. Neuroscience 2003, 121: 865-873. PMID: 14580936, DOI: 10.1016/s0306-4522(03)00500-1.
- Saadé NE, Massaad CA, Ochoa-Chaar CI, Jabbur SJ, Safieh-Garabedian B, Atweh SF. Upregulation of proinflammatory cytokines and nerve growth factor by intraplantar injection of capsaicin in rats. The Journal Of Physiology 2002, 545: 241-53. PMID: 12433964, PMCID: PMC2290671, DOI: 10.1113/jphysiol.2002.028233.
Departments and Programs
Locations
- Yale Vascular SurgeryYale Physicians Building800 Howard Avenue, Fl 2New Haven, CT 06519
Biography
Cassius Iyad Ochoa Chaar, MD, MPH, MS, is a vascular surgeon who treats problems affecting the circulatory system, ranging from painful varicose veins to life-threatening aneurysms. He has special expertise in treating peripheral artery disease, which can block blood flow through the arteries in the arms and legs. Dr. Chaar is an expert in lower extremity limb preservation, particularly in diabetic patients.
“The most exciting breakthrough in vascular surgery has been the evolution of minimally invasive surgery, which has transformed the specialty completely,” Dr. Chaar says. Dr. Chaar says that he is now able to treat the vast majority of his patients with minimally invasive endovascular surgeries, which involve accessing a damaged artery by puncturing it and inserting a wire and a catheter. But he also still performs traditional open surgeries—with long incisions that allow him to view and treat problems directly. He sometimes uses a combination of approaches to treat complex cases.
An associate professor of vascular surgery at Yale School of Medicine, Dr. Chaar says he was motivated to go into medicine when he was growing up and saw the positive impact a doctor had on his grandmother, who had complicated medical problems. “I wanted to be that person who touched peoples’ lives and made them better,” he says.
Dr. Chaar is the 2020 recipient of the Charles W. Bohmfalk Prize for teaching in the clinical sciences at the Yale School of Medicine. He is also the 2023 recipient of the John N. Forrest, Jr Mentorship Award at the Yale School of Medicine.
Dr. Chaar speaks Arabic, English, French and Spanish.
Titles
- Associate Professor of Surgery (Vascular)
Education & Training
- MPHYale School of Public Health , Biostatistics (2023)
- FellowUniversity of Pittsburgh Medical Center (2011)
- Chief ResidentYale New Haven Hospital (2009)
- ResidentYale New Haven Hospital (2008)
- Post-Doctoral research fellowCleveland Clinic Foundation (2004)
- MDAmerican University of Beirut (2002)
- MSAmerican University of Beirut (2000)
Languages Spoken
- العربية (Arabic)
- English
- Français (French)
- Español (Spanish)
Additional Information
Honors & Recognitions
- John N Forrest, Jr Mentorship Award: Yale School of Medicine (2023)
- Quality Improvement Grant : Vascular Study Group of New England (2023)
- SVS Clinical Research Seed Grant: Society for Vascular Surgery (2021)
- VSGNE Quality Improvement Grant: Vascular Study Group of New England (2021)
- Juzzo Traveling fellowship: American Venous Forum (2021)
- CT Innovations Biopipeline Award: CT Innovations (2020)
- Academic Development Award: Department of Surgery (2020)
- Charles W Bohmfalk Award: Yale School of Medicine (2020)
- EJ Wylie Traveling Fellowship: Society for Vascular Surgery (2020)
- Quality Improvement Award: Vascular Student Group of New England (VSGNE) (2019)
Publications
- Damara F, Alameddine D, Slade M, Cardella J, Tonnessen B, Guzman R, Ochoa Chaar C. Arterial dissection during peripheral vascular interventions. Journal Of Vascular Surgery 2023, 79: 339-347.e6. PMID: 37838217, DOI: 10.1016/j.jvs.2023.10.004.
- The Impact of Ejection Fraction on Major Adverse Limb Events after Lower Extremity RevascularizationJamil Y, Huttler J, Alameddine D, Wu Z, Zhuo H, Mena-Hurtado C, Velazquez E, Guzman R, Ochoa Chaar C. The Impact of Ejection Fraction on Major Adverse Limb Events after Lower Extremity Revascularization. Annals Of Vascular Surgery 2023, 98: 210-219. PMID: 37802138, DOI: 10.1016/j.avsg.2023.08.009.
- Bai H, Gokani V, Storch J, Kibrik P, Aziz F, Sachdev U, Fukaya E, Ochoa Chaar C, Obi A, Ting W. A comparison of below-knee vs above-knee endovenous ablation of varicose veins. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2023, 12: 101679. PMID: 37708939, DOI: 10.1016/j.jvsv.2023.08.018.
- Jamil Y, Huttler J, Ochoa Chaar C. Endovascular Recanalization and Stent Graft Placement for a Chronically Occluded Prosthetic Graft to Treat Critical Limb Ischemia. Journal Of Vascular And Interventional Radiology 2023, 35: 143-145. PMID: 37704039, DOI: 10.1016/j.jvir.2023.09.006.
- Saab K, Brahmandam A, Brackett A, Desai M, Dardik A, Guzman R, Chaar C. Systematic review of inferior vena cava atresia. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2023, 11: 1253-1264. PMID: 37453547, DOI: 10.1016/j.jvsv.2023.07.002.
- Siracuse J, Farber A, Menard M, Conte M, Kaufman J, Jaff M, Kiang S, Ochoa Chaar C, Osborne N, Singh N, Tan T, Guzman R, Strong M, Hamza T, Doros G, Rosenfield K. Perioperative complications following open or endovascular revascularization for chronic limb-threatening ischemia in the BEST-CLI Trial. Journal Of Vascular Surgery 2023, 78: 1012-1020.e2. PMID: 37318428, DOI: 10.1016/j.jvs.2023.05.040.
- Kostiuk V, Chen J, Dahl N, Turner J, Chaar C. Hybrid Revision of Dysfunctional Aneurysmal Arteriovenous Fistulas. Vascular And Endovascular Surgery 2023, 57: 909-913. PMID: 37300698, DOI: 10.1177/15385744231183488.
- Kim T, Schneider P, Iannuzzi J, Ochoa Chaar C. High-Risk Characteristics for Clinical Failure after Isolated Femoropopliteal Peripheral Vascular Interventions. Annals Of Vascular Surgery 2023, 96: 253-260. PMID: 37088359, DOI: 10.1016/j.avsg.2023.04.010.
- Satam K, Aboian E, Cardella J, Slade M, Nassiri N, Dardik A, Guzman R, Ochoa Chaar C. The management of patients with popliteal artery aneurysms presenting with acute limb ischemia. Journal Of Vascular Surgery 2023, 78: 506-513. PMID: 37086824, DOI: 10.1016/j.jvs.2023.04.019.
- Chan S, Weininger G, Kozhimala M, Sumpio B, Levine L, Harris S, Zheng S, Ochoa Chaar C, Guzman R, Sumpio B. Utility of Hook Sign in the Diagnosis of Median Arcuate Ligament Syndrome. Annals Of Vascular Surgery 2023, 94: 165-171. PMID: 37023920, DOI: 10.1016/j.avsg.2023.03.018.
- Summers S, Rastogi V, Yadavalli S, Wang S, Schaller M, Jones D, Ochoa Chaar C, de Bruin J, Verhagen H, Schermerhorn M. The association between diabetes mellitus and its management with outcomes following endovascular repair for descending thoracic aortic aneurysm. Journal Of Vascular Surgery 2023, 78: 313-323. PMID: 36966848, DOI: 10.1016/j.jvs.2023.02.024.
- Lee S, Ali S, Cardella J, Turner J, Guzman R, Dardik A, Ochoa Chaar C. Carbon dioxide angiography during peripheral vascular interventions is associated with decreased cardiac and renal complications in patients with chronic kidney disease. Journal Of Vascular Surgery 2023, 78: 201-208. PMID: 36948278, DOI: 10.1016/j.jvs.2023.03.029.
- Bellamkonda K, Zogg C, Nassiri N, Sadeghi M, Zhang Y, Guzman R, Ochoa Chaar C. Characteristics and 1-year outcomes of patients with rupture of small abdominal aortic aneurysms. Journal Of Vascular Surgery 2023, 77: 1649-1657. PMID: 36796595, DOI: 10.1016/j.jvs.2023.02.003.
- Satam K, Aurshina A, Zhuo H, Zhang Y, Cardella J, Aboian E, Tonnessen B, Guzman R, Ochoa Chaar C. Incidence and Significance of Deep Venous Reflux in Patients Treated with Saphenous Vein Ablation. Annals Of Vascular Surgery 2023, 91: 182-190. PMID: 36693564, DOI: 10.1016/j.avsg.2022.11.034.
- Kozhimala M, Chan S, Weininger G, Sumpio B, Levine L, Harris S, Zheng S, Longo W, Ochoa Chaar C, Guzman R, Sumpio B. Prevalence and Characteristics of Patients with Median Arcuate Ligament Syndrome in a Cohort Diagnosed with Celiac Artery Compression. Journal Of The American College Of Surgeons 2022, 236: 1085-1091. PMID: 36476640, DOI: 10.1097/xcs.0000000000000500.
- Barahona M, Tonnessen B, Cardella J, Shirali A, Perez-Lozada JC, Chaar C. Venous outflow banding for maturation of a percutaneous arteriovenous fistula. Journal Of Vascular Surgery Cases And Innovative Techniques 2022, 8: 42-44. PMID: 35079669, PMCID: PMC8777140, DOI: 10.1016/j.jvscit.2021.12.007.
- Bikdeli B, Jiménez D, del Toro J, Piazza G, Rivas A, Fernández‐Reyes J, Sampériz Á, Otero R, Suriñach J, Siniscalchi C, Martín‐Guerra J, Castro J, Muriel A, Lip G, Goldhaber S, Monreal M, Monreal M, Prandoni P, Brenner B, Farge‐Bancel D, Barba R, Di Micco P, Bertoletti L, Schellong S, Tzoran I, Reis A, Bosevski M, Bounameaux H, Malý R, Verhamme P, Caprini J, Bui H, Adarraga M, Agud M, Aibar J, Aibar M, Amado C, Arcelus J, Baeza C, Ballaz A, Barba R, Barbagelata C, Barrón M, Barrón‐Andrés B, Blanco‐Molina Á, Botella E, Camon A, Cañas I, Casado I, Castro J, Chasco L, Criado J, de Ancos C, de Miguel J, del Toro J, Demelo‐Rodríguez P, Díaz‐Peromingo J, Di Campli M, Díez‐Sierra J, Domínguez I, Escribano J, Falgá C, Farfán‐Sedano A, Fernández‐Capitán C, Fernández‐Reyes J, Fidalgo M, Flores K, Font C, Font L, Francisco I, Gabara C, Galeano‐Valle F, Galindo D, García M, García‐Bragado F, de Herreros M, García‐Hernáez R, García‐Mullor M, García‐Raso A, Gavín‐Sebastián O, Gil‐Díaz A, Gómez‐Cuervo C, Grau E, Guirado L, Gutiérrez J, Hernández‐Blasco L, Hernando E, Herreros M, Jara‐Palomares L, Jaras M, Jiménez D, Jiménez R, Joya M, León J, Lima J, Llamas P, Lobo J, López‐Jiménez L, López‐Miguel P, López‐Núñez J, López‐Reyes R, López‐Ruiz A, López‐Sáez J, Lorenzo A, Madridano O, Maestre A, Marchena P, del Pozo M, Martín‐Guerra J, Martín‐Martos F, Mella C, Mellado M, Mercado M, Moisés J, Monreal M, del Valle Morales M, Muñoz‐Blanco A, Muñoz‐Rivas N, Navas M, Nieto J, Núñez‐Fernández M, Obispo B, Olid M, Olivares M, Orcastegui J, Ortega‐Michel C, Osorio J, Otalora S, Otero R, Parra P, Parra V, Pedrajas J, Pellejero G, Porras J, Portillo J, Riera‐Mestre A, Rivas A, Rivera‐Civico F, Rodríguez‐Chiaradía D, Rodríguez‐Cobo A, Rodríguez‐Matute C, Rogado J, Roig S, Rosa V, Ruiz‐Artacho P, Ruiz‐Giménez N, Ruiz‐Ruiz J, Ruiz‐Sada P, Salgueiro G, Sánchez‐Martínez R, Sánchez‐Muñoz‐Torrero J, Sancho T, Sirisi M, Soler S, Suriñach J, Tirado R, Torres M, Tolosa C, Trujillo‐Santos J, Uresandi F, Valero B, Valle R, Vela J, Vidal G, Villares P, Zamora C, Gutiérrez P, Vázquez F, Engelen M, Vanassche T, Verhamme P, Hirmerova J, Malý R, Salgado E, Abdallah N, Bertoletti L, Bura‐Riviere A, Crichi B, Debourdeau P, Olivier E, Falvo N, Farge‐Bancel D, Galliazzo S, Helfer H, Mahé I, Moustafa F, Poenou G, Schellong S, Braester A, Brenner B, Tzoran I, Bilora F, Bucherini E, Ciammaichella M, Di Micco P, Imbalzano E, Maida R, Mastroiacovo D, Pace F, Pesavento R, Pomero F, Prandoni P, Quintavalla R, Rocci A, Romualdi R, Siniscalchi C, Tufano A, Visonà A, Zalunardo B, Gibietis V, Kigitovica D, Skride A, Fonseca S, Martins F, Meireles J, Bosevski M, Bounameaux H, Mazzolai L, Bikdeli B, Caprini J, Tafur A, Ochoa‐Chaar C, Weinberg I, Wilkins H, Bui H. Association Between Preexisting Versus Newly Identified Atrial Fibrillation and Outcomes of Patients With Acute Pulmonary Embolism. Journal Of The American Heart Association 2021, 10: e021467. PMID: 34459215, PMCID: PMC8649245, DOI: 10.1161/jaha.121.021467.
- Chan SM, Brahmandam A, Cardella JA, Elefteriades J, Setaro JF, Mangi AA, Chaar C. Aortic remodeling and competitive flow after surgical treatment of aortic dissection. Journal Of Vascular Surgery Cases And Innovative Techniques 2021, 7: 404-407. PMID: 34278070, PMCID: PMC8261546, DOI: 10.1016/j.jvscit.2021.05.009.
- Attaran R, Bhalla A, Mena-Hurtado C, Ochoa-Chaar C. Correlation Between Great Saphenous Vein Diameter, Length of Treatment Zone With Improvement in Symptoms after Ablation. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2021, 9: 554-555. DOI: 10.1016/j.jvsv.2020.12.049.
- Chen JF, Chaar C, Cardella J, Dardik A, Guzman RJ, Nassiri N. Emergent percutaneous chimney endovascular aortic repair of a secondary aortoenteric fistula in the setting of a solitary kidney. Journal Of Vascular Surgery Cases And Innovative Techniques 2021, 7: 253-257. PMID: 33997566, PMCID: PMC8095080, DOI: 10.1016/j.jvscit.2021.01.009.
- Chan SM, Lee A, Roy B, Chaar CIO. Diagnostic and Technical Challenges in the Care of a Complex Patient With Post-Thrombotic Syndrome. Vascular And Endovascular Surgery 2021, 55: 515-518. PMID: 33563142, DOI: 10.1177/1538574421995020.
- Lee SR, Dardik A, Chaar CIO. Strategies to Minimize Iodinated Contrast Volume in Patients with Chronic Kidney Disease Undergoing Peripheral Vascular Interventions. Annals Of Vascular Surgery 2021, 73: 490-495. PMID: 33556507, DOI: 10.1016/j.avsg.2021.01.081.
- Aurshina A, Huber S, Deng Y, Attaran R, Nassiri N, Dardik A, Ochoa Chaar CI. Correlation of venous symptoms with iliac vein stenosis on magnetic resonance imaging. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2020, 9: 1291-1296.e1. PMID: 33387666, DOI: 10.1016/j.jvsv.2020.12.077.
- Lumas S, Hsiang W, Akhtar S, Ochoa Chaar CI. Regional Anesthesia is Underutilized for Carotid Endarterectomy Despite Improved Perioperative Outcomes Compared with General Anesthesia. Annals Of Vascular Surgery 2020, 73: 336-343. PMID: 33373769, DOI: 10.1016/j.avsg.2020.11.035.
- Aurshina A, Cardella J, Sumpio B, Zhuo H, Zhang Y, Dardik A, Ochoa Chaar CI. Location of reflux in the saphenous vein does not affect outcomes of vein ablation. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2020, 9: 932-937. PMID: 33249108, DOI: 10.1016/j.jvsv.2020.11.013.
- Kim TI, Kiwan G, Mohamedali A, Zhang Y, Dardik A, Guzman RJ, Ochoa Chaar CI. Multiple Reinterventions for Claudication are Associated with Progression to Chronic Limb-Threatening Ischemia. Annals Of Vascular Surgery 2020, 72: 166-174. PMID: 33227462, DOI: 10.1016/j.avsg.2020.10.004.
- Kim TI, Kiwan G, Mohamedali A, Zhang Y, Mena-Hurtado C, Mojibian H, Guzman RJ, Ochoa Chaar CI. Outcomes of treatment with paclitaxel-coated devices for peripheral arterial disease. Journal Of Vascular Surgery 2020, 73: 911-917. PMID: 33038480, DOI: 10.1016/j.jvs.2020.08.146.
- Kim TI, Aboian E, Fischer U, Zhang Y, Guzman RJ, Ochoa Chaar CI. Lower Extremity Revascularization for Chronic Limb-Threatening Ischemia among Patients at the Extremes of Age. Annals Of Vascular Surgery 2020, 72: 517-528. PMID: 32927042, DOI: 10.1016/j.avsg.2020.08.135.
- Ochoa Chaar CI, Makuch R. Emergency Use Authorization for Remdesivir and Its Potential Implications. Therapeutic Innovation & Regulatory Science 2020, 55: 270-271. PMID: 32880853, PMCID: PMC7471551, DOI: 10.1007/s43441-020-00212-5.
- Anantha-Narayanan M, Sheikh AB, Nagpal S, Jelani QU, Smolderen KG, Regan C, Ionescu C, Ochoa Chaar CI, Schneider M, Llanos-Chea F, Mena-Hurtado C. Systematic review and meta-analysis of outcomes of lower extremity peripheral arterial interventions in patients with and without chronic kidney disease or end-stage renal disease. Journal Of Vascular Surgery 2020, 73: 331-340.e4. PMID: 32889074, DOI: 10.1016/j.jvs.2020.08.032.
- Bellamkonda KS, Yousef S, Nassiri N, Dardik A, Guzman RJ, Geirsson A, Ochoa Chaar CI. Trends and outcomes of thoracic endovascular aortic repair with open concomitant cervical debranching. Journal Of Vascular Surgery 2020, 73: 1205-1212.e3. PMID: 32861861, DOI: 10.1016/j.jvs.2020.07.103.
- Bellamkonda KS, Yousef S, Zhang Y, Dardik A, Geirsson A, Chaar CIO. Endograft type and anesthesia mode are associated with mortality of endovascular aneurysm repair for ruptured abdominal aortic aneurysms. Vascular 2020, 29: 155-162. PMID: 32787557, DOI: 10.1177/1708538120947859.
- Kim TI, Abougergi MS, Guzman RJ, Ochoa Chaar CI. Costs and complications of hospital admissions for inferior vena cava filter malfunction. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2020, 9: 315-320.e4. PMID: 32791305, DOI: 10.1016/j.jvsv.2020.08.002.
- Brahmandam A, Gholitabar N, Zhang Y, Wang X, Cardella J, Sarac T, Ochoa Chaar CI. The State of Vascular Surgery Interest Groups in North America. Annals Of Vascular Surgery 2020, 71: 230-236. PMID: 32781261, DOI: 10.1016/j.avsg.2020.07.044.
- Kim TI, Chaar CIO, Guzman RJ, Fischer UM. Multiple duplications of the superficial femoral artery – Case report and review of the literature. Vascular 2020, 29: 116-118. PMID: 32698701, DOI: 10.1177/1708538120943317.
- Brahmandam A, Gholitabar N, Cardella J, Nassiri N, Dardik A, Georgi M, Ochoa Chaar CI. Discrepancy in Outcomes after Revascularization for Chronic Limb-Threatening Ischemia Warrants Separate Reporting of Rest Pain and Tissue Loss. Annals Of Vascular Surgery 2020, 70: 237-244. PMID: 32659417, DOI: 10.1016/j.avsg.2020.06.057.
- Ochoa Chaar CI, Kim TI, Shebl FM, Dardik A. The Use of Embolic Protection Devices during Lower Extremity Peripheral Vascular Interventions. Annals Of Vascular Surgery 2020, 69: 9-16. PMID: 32554197, DOI: 10.1016/j.avsg.2020.06.014.
- Bai H, Fereydooni A, Zhuo H, Zhang Y, Tonnessen B, Guzman RJ, Ochoa Chaar CI. Comparison of Atherectomy to Balloon Angioplasty and Stenting for Isolated Femoropopliteal Revascularization. Annals Of Vascular Surgery 2020, 69: 261-273. PMID: 32512112, DOI: 10.1016/j.avsg.2020.05.019.
- Ochoa Chaar CI, Gholitabar N, DeTrani M, Jorshery S, Zhuo H, Zhang Y, Dardik A. The Reintervention Index: A New Outcome Measure for Comparative Effectiveness of Lower Extremity Revascularization. Annals Of Vascular Surgery 2020, 69: 52-61. PMID: 32474144, DOI: 10.1016/j.avsg.2020.05.040.
- Lee SR, Dardik A, Ochoa Chaar CI. Postcontrast Acute Kidney Injury after Peripheral Vascular Interventions in Kidney Transplant Recipients. Annals Of Vascular Surgery 2020, 68: 8-14. PMID: 32428641, DOI: 10.1016/j.avsg.2020.04.057.
- Kim TI, Zhang Y, Guzman RJ, Ochoa Chaar CI. Trends of hospital-based surgery for varicose veins in the elderly. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2020, 9: 146-153.e2. PMID: 32360785, DOI: 10.1016/j.jvsv.2020.04.016.
- Kim TI, Zhang Y, Amin HP, Ochoa Chaar CI. Presentation and outcomes of carotid endarterectomy in active smokers. Journal Of Vascular Surgery 2020, 72: 1720-1727.e1. PMID: 32249043, DOI: 10.1016/j.jvs.2020.02.014.
- Ochoa Chaar CI, Gholitabar N, Detrani M, Jorshery SD, Kim TI, Zhuo H, Zhang Y, Dardik A. Variations in the Management of Claudication in a Tertiary Care Center. Annals Of Vascular Surgery 2020, 67: 395-402. PMID: 32179142, DOI: 10.1016/j.avsg.2020.02.015.
- Aurshina A, Ochoa Chaar CI. Reply. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2020, 8: 337-338. PMID: 32067734, DOI: 10.1016/j.jvsv.2019.11.005.
- Fereydooni A, Zhou B, Xu Y, Deng Y, Dardik A, Ochoa Chaar CI. Rapid increase in hybrid surgery for the treatment of peripheral artery disease in the Vascular Quality Initiative database. Journal Of Vascular Surgery 2020, 72: 977-986.e1. PMID: 32067877, DOI: 10.1016/j.jvs.2019.11.041.
- Fereydooni, A, Dahl, N, Ochoa Chaar C. Technical and Ethical Challenges in the Care of an Independent Nonagenarian with Critical Limb Ischemia. Archives Of Clinical And Medical Case Reports 2020, 04 DOI: 10.26502/acmcr.96550178.
- Turner AD, Chen M, Dahl N, Scoutt L, Dardik A, Ochoa Chaar C. Intraoperative Ultrasound Guidance for Banding of an Arteriovenous Fistula Causing High Cardiac Output Heart Failure. Annals Of Vascular Surgery 2019, 66: 665.e5-665.e8. PMID: 31863947, DOI: 10.1016/j.avsg.2019.12.011.
- Fereydooni A, Ramirez JL, Dossabhoy SS, Brahmandam A, Dardik A, Ochoa Chaar CI. A national post-Match webinar panel improves knowledge and preparedness of medical students interested in vascular surgery training. Journal Of Vascular Surgery 2019, 71: 1733-1740.e5. PMID: 31843302, DOI: 10.1016/j.jvs.2019.08.282.
- Lee SR, Zhuo H, Zhang Y, Dahl N, Dardik A, Ochoa Chaar CI. Risk factors and safe contrast volume thresholds for postcontrast acute kidney injury after peripheral vascular interventions. Journal Of Vascular Surgery 2019, 72: 603-610.e1. PMID: 31843298, DOI: 10.1016/j.jvs.2019.09.059.
- Tsay C, Luo J, Zhang Y, Attaran R, Dardik A, Ochoa Chaar CI. Perioperative Outcomes of Lower Extremity Revascularization for Rest Pain and Tissue Loss. Annals Of Vascular Surgery 2019, 66: 493-501. PMID: 31756416, DOI: 10.1016/j.avsg.2019.11.019.
- Fereydooni A, O'Meara T, Popescu WM, Dardik A, Ochoa Chaar CI. Use of neuraxial anesthesia for hybrid lower extremity revascularization is associated with reduced perioperative morbidity. Journal Of Vascular Surgery 2019, 71: 1296-1304.e7. PMID: 31708304, DOI: 10.1016/j.jvs.2019.07.072.
- Rajaee S, Holder T, Indes JE, Muhs B, Sarac T, Sumpio B, Toll BA, Ochoa Chaar CI. A Pilot Study of a Standardized Smoking Cessation Intervention for Patients with Vascular Disease. Annals Of Vascular Surgery 2019, 61: 91-99.e3. PMID: 31449932, DOI: 10.1016/j.avsg.2019.06.017.
- Ochoa Chaar CI, Gholitabar N, Goodney P, Dardik A, Abougergi MS. One-Year Readmission after Open and Endovascular Revascularization for Critical Limb Ischemia. Annals Of Vascular Surgery 2019, 61: 25-32.e2. PMID: 31376536, DOI: 10.1016/j.avsg.2019.07.003.
- Brahmandam A, Skrip L, Mojibian H, Aruny J, Sumpio B, Dardik A, Sarac T, Ochoa Chaar CI. Costs and complications of endovascular inferior vena cava filter retrieval. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2019, 7: 653-659.e1. PMID: 31307952, DOI: 10.1016/j.jvsv.2019.02.017.
- Ochoa Chaar C, Gholitabar N, Rezek I, Luciano R, Clancy J. Treatment of superior vena cava syndrome with kissing brachiocephalic stents and exchange of pacemaker leads. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2019, 8: 143-144. PMID: 31231057, DOI: 10.1016/j.jvsv.2019.04.009.
- Fereydooni A, Zhou B, Jorshery SD, Deng Y, Dardik A, Chaar CIO. National trends of hybrid lower extremity revascularization in the ACS-NSQIP database. Vascular 2019, 27: 653-662. PMID: 31126228, DOI: 10.1177/1708538119852019.
- Aurshina A, Brahmandam A, Zhang Y, Yang Y, Mojibian H, Sarac T, Ochoa Chaar CI. Patient perspectives on inferior vena cava filter retrieval. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2019, 7: 507-513. PMID: 30850353, DOI: 10.1016/j.jvsv.2018.11.011.
- Jorshery SD, Luo J, Zhang Y, Sarac T, Ochoa Chaar CI. Hybrid surgery for bilateral lower extremity inflow revascularization. Journal Of Vascular Surgery 2019, 70: 768-775.e2. PMID: 30837177, DOI: 10.1016/j.jvs.2018.11.037.
- Hsu C, Brahmandam A, Brownson KE, Huynh N, Reynolds J, Lee AI, Fares WH, Ochoa Chaar CI. Statin therapy associated with improved thrombus resolution in patients with deep vein thrombosis. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2019, 7: 169-175.e4. PMID: 30660579, DOI: 10.1016/j.jvsv.2018.10.020.
- Brahmandam A, Skrip L, Sumpio B, Indes J, Dardik A, Sarac T, Rectenwald J, Chaar CIO. A survey of vascular specialists’ practice patterns of inferior vena cava filter placement and retrieval. Vascular 2018, 27: 291-298. PMID: 30501583, DOI: 10.1177/1708538118815394.
- Jorshery SD, Skrip L, Sarac T, Ochoa Chaar CI. Hybrid femoropopliteal procedures are associated with improved perioperative outcomes compared with bypass. Journal Of Vascular Surgery 2018, 68: 1447-1454.e5. PMID: 30360840, DOI: 10.1016/j.jvs.2018.01.058.
- Ochoa Chaar CI, Aurshina A. Endovascular and Open Surgery for Deep Vein Thrombosis. Clinics In Chest Medicine 2018, 39: 631-644. PMID: 30122186, DOI: 10.1016/j.ccm.2018.04.014.
- Huynh N, Fares WH, Lee AI, Dardik A, Sarac T, Ochoa Chaar CI. Reply. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2018, 6: 560-561. PMID: 29909864, DOI: 10.1016/j.jvsv.2018.03.008.
- DeWane MP, Fares WH, Ochoa Chaar CI. Endovascular Treatment of a Large Iliac Vein Aneurysm and High-Flow Arteriovenous Fistula. Annals Of Vascular Surgery 2018, 53: 266.e5-266.e7. PMID: 29886213, DOI: 10.1016/j.avsg.2018.04.008.
- Ochoa Chaar C, Aurshina A. Endothermal Ablation of Varicose Veins. 2018, 555-566. DOI: 10.1007/978-3-319-65936-7_49.
- Kaltenmeier CT, Erben Y, Indes J, Lee A, Dardik A, Sarac T, Ochoa Chaar CI. Systematic review of May-Thurner syndrome with emphasis on gender differences. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2017, 6: 399-407.e4. PMID: 29290600, DOI: 10.1016/j.jvsv.2017.11.006.
- Aurshina A, Ochoa Chaar C. Mechanochemical Ablation of Superficial Veins. 2017, 133-143. DOI: 10.1007/978-3-319-65226-9_10.
- Brahmandam A, Aurshina A, Ochoa Chaar C. Retrieval of Inferior Vena Cava Filters. 2017, 433-450. DOI: 10.1007/978-3-319-65226-9_33.
- Lee EJ, Dykas DJ, Leavitt AD, Camire RM, Ebberink E, García de Frutos P, Gnanasambandan K, Gu SX, Huntington JA, Lentz SR, Mertens K, Parish CR, Rezaie AR, Sayeski PP, Cromwell C, Bar N, Halene S, Neparidze N, Parker TL, Burns AJ, Dumont A, Yao X, Chaar CIO, Connors JM, Bale AE, Lee AI. Whole-exome sequencing in evaluation of patients with venous thromboembolism. Blood Advances 2017, 1: 1224-1237. PMID: 29296762, PMCID: PMC5728544, DOI: 10.1182/bloodadvances.2017005249.
- Brahmandam AS, Brownson K, Skrip L, Parker T, Indes J, Sarac T, Dardik A, Chaar CI. Management of isolated calf vein thrombosis in cancer patients. Vascular 2015, 24: 64-69. PMID: 25957344, DOI: 10.1177/1708538115584726.
- Ziegler KR, Cruz J, Muhs BE, Indes JE, Sumpio BE, Chaar CI. Iatrogenic Profunda Femoris Stenosis after Superficial Femoral Artery Stenting. The American Surgeon 2014, 80: 155-156. PMID: 24887776, DOI: 10.1177/000313481408000602.
- Chaar CI, Makaroun MS, Marone LK, Rhee RY, Al-Khoury G, Cho JS, Leers SA, Chaer RA. Impact of endovascular options on lower extremity revascularization in young patients. Journal Of Vascular Surgery 2012, 56: 703-13.e1-3. PMID: 22579133, DOI: 10.1016/j.jvs.2012.01.073.
- Chaar CI, Eid R, Park T, Rhee RY, Abu-Hamad G, Tzeng E, Makaroun MS, Cho JS. Delayed open conversions after endovascular abdominal aortic aneurysm repair. Journal Of Vascular Surgery 2012, 55: 1562-9.e1. PMID: 22503183, DOI: 10.1016/j.jvs.2011.12.007.
- Chaar CI, Hirsch SA, Cwenar MT, Rhee RY, Chaer RA, Abu Hamad G, Dillavou ED. Expanding the role of endovenous laser therapy: results in large diameter saphenous, small saphenous, and anterior accessory veins. Annals Of Vascular Surgery 2011, 25: 656-61. PMID: 21724104, DOI: 10.1016/j.avsg.2011.02.031.
- McGillicuddy EA, Chaar CI, Flynn C, Villalona G, Longo WE. Cologastric fistula with a foreign body in a patient with Crohn's disease. The Yale Journal Of Biology And Medicine 2010, 83: 113-7. PMID: 20885896, PMCID: PMC2946122.
- Chaar CI, Fitzgerald TN, Dewan M, Huddle M, Schlosser FJ, Perkal M, Muhs BE, Dardik A. Endovascular aneurysm repair is associated with less malnutrition than open abdominal aortic aneurysm repair. The American Journal Of Surgery 2009, 198: 623-627. PMID: 19887189, PMCID: PMC2774903, DOI: 10.1016/j.amjsurg.2009.07.022.
- Chaar CI, Wexelman B, Zuckerman K, Longo W. Intussusception of the appendix: comprehensive review of the literature. The American Journal Of Surgery 2009, 198: 122-128. PMID: 19249733, DOI: 10.1016/j.amjsurg.2008.08.023.
- Chaar CI, Attanasio P, Detterbeck F. Disruption of the Costal Margin with Transdiaphragmatic Abdominal Herniation Induced by Coughing. The American Surgeon 2008, 74: 350-353. PMID: 18453304, DOI: 10.1177/000313480807400416.
- Safieh-Garabedian B, Ochoa-Chaar CI, Poole S, Massaad CA, Atweh SF, Jabbur SJ, Saadé NE. Thymulin reverses inflammatory hyperalgesia and modulates the increased concentration of proinflammatory cytokines induced by i.c.v. endotoxin injection. Neuroscience 2003, 121: 865-873. PMID: 14580936, DOI: 10.1016/s0306-4522(03)00500-1.
- Saadé NE, Massaad CA, Ochoa-Chaar CI, Jabbur SJ, Safieh-Garabedian B, Atweh SF. Upregulation of proinflammatory cytokines and nerve growth factor by intraplantar injection of capsaicin in rats. The Journal Of Physiology 2002, 545: 241-53. PMID: 12433964, PMCID: PMC2290671, DOI: 10.1113/jphysiol.2002.028233.
Departments and Programs
Locations
- Yale Vascular SurgeryYale Physicians Building800 Howard Avenue, Fl 2New Haven, CT 06519
- Yale Vascular SurgeryYale Physicians Building800 Howard Avenue, Fl 2New Haven, CT 06519