2025
Hydration Attenuates the Degree of Non-Pathologic Iliac Vein Stenosis Detected by Magnetic Resonance Imaging
Schultz K, Gathagan R, Kuehne A, Rodriguez P, Huber S, Attaran R, Perez-Lozada J, Tonnessen B, Aboian E, Guzman R, Chaar C. Hydration Attenuates the Degree of Non-Pathologic Iliac Vein Stenosis Detected by Magnetic Resonance Imaging. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2025, 13: 102086. DOI: 10.1016/j.jvsv.2024.102086.Peer-Reviewed Original ResearchAntithrombotic Therapy In Patients With Atrial Fibrillation Undergoing Peripheral Vascular Interventions
Said S, Alameddine D, Aboian E, Strosberg D, Tonnessen B, Cardella J, Guzman R, Chaar C. Antithrombotic Therapy In Patients With Atrial Fibrillation Undergoing Peripheral Vascular Interventions. Annals Of Vascular Surgery 2025, 112: 436-437. DOI: 10.1016/j.avsg.2024.11.070.Peer-Reviewed Original ResearchOutcomes of Mechanical Thrombectomy for Acute Limb Ischemia at a Tertiary Referral Center
Loh S, Nasir A, Strosberg D, Ochoa Chaar C, Guzman R, Tonnessen B. Outcomes of Mechanical Thrombectomy for Acute Limb Ischemia at a Tertiary Referral Center. Journal Of Vascular Surgery 2025 PMID: 40024380, DOI: 10.1016/j.jvs.2025.02.027.Peer-Reviewed Original ResearchTertiary referral centerAcute limb ischemiaAdverse cardiovascular eventsReferral centerMechanical thrombectomyOpen surgeryThirty-dayCardiovascular eventsConversion to open surgeryLimb ischemiaTreated with mechanical thrombectomyMedian follow-upCatheter-directed thrombolysisManagement of acute limb ischemiaDuration of symptomsThirty-day complicationsOutcomes of mechanical thrombectomyRisk of limb lossHigh risk of limb lossAcute limb ischemia casesMechanical thrombectomy devicesBleeding eventsMulticenter trialThrombosed bypassesThrombosed stentMidterm Outcomes of thoracic endovascular aortic repair versus Optimal Medical Therapy for Uncomplicated Acute Type B Dissection
Hu K, Ma W, Pupovac S, Hameed I, Fereydooni S, Li E, Larson H, Zafar M, Tonnessen B, Cardella J, Aboian E, Guzman R, Chaar C, Strosberg D, Williams M, Nassiri N, Assi R, Vallabhajosyula P. Midterm Outcomes of thoracic endovascular aortic repair versus Optimal Medical Therapy for Uncomplicated Acute Type B Dissection. JTCVS Open 2025 DOI: 10.1016/j.xjon.2024.12.013.Peer-Reviewed Original ResearchThoracic endovascular aortic repairThoracic endovascular aortic repair groupOptimal medical therapyOptimal medical therapy groupMidterm outcomes of thoracic endovascular aortic repairOutcomes of thoracic endovascular aortic repairUncomplicated acute type B aortic dissectionEndovascular aortic repairAcute kidney injuryAortic repairMidterm outcomesMedical therapyUncomplicated acute type B dissectionAcute type B aortic dissectionAcute type B dissectionAssociated with improved survivalType B aortic dissectionThirty-day ratesType B dissectionB aortic dissectionPost-operative dataMidterm follow-upIn-hospital/30-day mortalityKaplan-Meier survivalB dissection
2024
Outcomes of Mechanical Thrombectomy for Acute Limb Ischemia at a Tertiary Referral Center
Loh S, Strosberg D, Chaar C, Guzman R, Tonnessen B. Outcomes of Mechanical Thrombectomy for Acute Limb Ischemia at a Tertiary Referral Center. Journal Of Vascular Surgery 2024, 80: e121-e122. DOI: 10.1016/j.jvs.2024.07.058.Peer-Reviewed Original ResearchThe Degree of Inferior Vena Cava Filter Tilt Associated with Challenging Retrieval
Kostiuk V, Grubman S, Brahmandam A, Schneider E, Tonnessen B, Perez Lozada J, Guzman R, Ochoa Chaar C. The Degree of Inferior Vena Cava Filter Tilt Associated with Challenging Retrieval. Annals Of Vascular Surgery 2024, 109: 135-142. PMID: 39025218, DOI: 10.1016/j.avsg.2024.06.020.Peer-Reviewed Original ResearchIVC filter tiltInferior vena cavaInferior vena cava filter retrievalFilter tiltEndovascular techniquesFilter retrievalInferior vena cava axisRight jugular vein accessInferior vena cava diameterElectronic charts of patientsInferior vena cava filter removalAssociated with technical difficultiesCharts of patientsFailed retrievalJugular vein accessLowest renal veinRight jugular veinRegression analysisFilter placementIVC filtersRenal veinVein accessVena cavaProcedural characteristicsFilter removalEndoscopic Transaxillary First Rib Resection
Setia O, Strosberg D, Blasberg J, Schwartz J, Tonnessen B, Cardella J, Zwibelman H, Guzman R. Endoscopic Transaxillary First Rib Resection. Journal Of Vascular Surgery 2024, 79: e115. DOI: 10.1016/j.jvs.2024.03.139.Peer-Reviewed Original ResearchIntravascular Ultrasound Use is Associated with Improved Patency in Lower Extremity Peripheral Arterial Interventions
Brahmandam A, Kim T, Parziale S, Deng Y, Setia O, Tonnessen B, Ochoa Chaar C, Guzman R, Aboian E. Intravascular Ultrasound Use is Associated with Improved Patency in Lower Extremity Peripheral Arterial Interventions. Annals Of Vascular Surgery 2024, 106: 410-418. PMID: 38810722, DOI: 10.1016/j.avsg.2024.03.008.Peer-Reviewed Original ResearchChronic limb-threatening ischemiaChronic limb threatening ischemia patientsGeneralized estimating equationsPeripheral vascular interventionsPeripheral arterial diseaseAssociated with improved patencyPredictors of 1-year outcomeIntravascular ultrasound useVascular Quality InitiativeSubgroup analysisAdjunctive useD lesionsTASC CPropensity matchingTreatment modalitiesTrans-Atlantic Inter-Society Consensus (TASC) classificationMajor amputationLimb-threatening ischemiaBalloon angioplastyIntravascular ultrasoundImproved patencyUltrasound useOne-year followQuality InitiativePredictors of patencyFasting Duration Prior to Venography Is Associated with Stent Size in Patients with Iliac Vein Compression
Schultz K, Rodriguez P, Hamdi S, Attaran R, Lozada J, Huber S, Tonnessen B, Aboian E, Guzman R, Chaar C. Fasting Duration Prior to Venography Is Associated with Stent Size in Patients with Iliac Vein Compression. Journal Of Vascular Surgery Venous And Lymphatic Disorders 2024, 12: 101774. DOI: 10.1016/j.jvsv.2024.101774.Peer-Reviewed Original ResearchClinician perspectives regarding CYP2C19 genotype testing in patients with critical limb ischemia: A Delphi approach
Regan C, Scierka L, Dardik A, Tonnessen B, Chaar C, Ionescu C, Aboian E, Cardella J, Nassiri N, Guzman R, Attaran R, Nagpal S, Shah S, Smolderen K, Mena-Hurtado C. Clinician perspectives regarding CYP2C19 genotype testing in patients with critical limb ischemia: A Delphi approach. Vascular 2024, 33: 466-471. PMID: 38669051, DOI: 10.1177/17085381241246318.Peer-Reviewed Original ResearchDual antiplatelet therapyPeripheral arterial diseaseCYP2C19 testingCYP2C19 mutationsHeterogeneity of treatment effectsPeripheral vascular interventionsConsensus statementKnowledge questionsAntiplatelet therapyGenetic testingVascular surgeryAcademic health systemBarriers to implementationInterquartile rangeCYP2C19 genotype testingVascular diseaseInterventional cardiologyModified Delphi methodPatient's metabolic statusManagement of patientsCritical limb ischemiaPerceived barriersPeripheral vascular diseaseArterial vascular diseaseClinician perspectivesLong-term limb salvage and functional outcomes for patients undergoing partial calcanectomy
Kostiuk V, Gazes M, Fereydooni S, Chaar C, Guzman R, Tonnessen B. Long-term limb salvage and functional outcomes for patients undergoing partial calcanectomy. Vascular 2024, 33: 395-403. PMID: 38631330, DOI: 10.1177/17085381241247627.Peer-Reviewed Original ResearchMajor limb amputationPeripheral arterial diseasePartial calcanectomyAmbulatory statusLimb amputationRisk of major limb amputationNon-invasive vascular testingRisk of amputationVascular testingAnkle brachial indexEnd-stage renal diseaseAbsence of peripheral arterial diseaseMultivariate logistic regression analysisLogistic regression analysisAssociated with increased mortalityAmputation-free survivalHeel ulcersChronic heel ulcersLower extremity revascularizationBrachial indexSecondary outcomesPrimary outcomePodiatric procedureAmputationCalcanectomy
2020
Comparison of Atherectomy to Balloon Angioplasty and Stenting for Isolated Femoropopliteal Revascularization
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.Peer-Reviewed Original ResearchConceptsPercutaneous transluminal angioplastyMajor ipsilateral amputationIpsilateral amputationPrimary patencyDistal embolizationFemoropopliteal diseaseBalloon angioplastyTechnical successStatus improvementAnkle-brachial index improvementSignificant additional clinical benefitSociety Consensus (TASC) II classificationChronic obstructive pulmonary diseaseConcomitant open surgeryLower ratesOutcomes of atherectomyUse of atherectomyAcute limb ischemiaOne-year outcomesVascular Quality InitiativeCongestive heart failureHigher reintervention rateLower extremity revascularizationObstructive pulmonary diseaseAdditional clinical benefit
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