Alan Chou, MD
Hospital ResidentDownloadHi-Res Photo
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Hospital Resident
Biography
Born and raised in Huntsville, Alabama, Alan attended Dartmouth College and received undergraduate degrees in chemistry and mathematics. He subsequently attended the University of Pennsylvania for medical school and is currently a resident in the integrated cardiothoracic residency program. During residency, he spent two years in the labs of Drs. Roland Assi and George Tellides and earned a Masters of Health Science degree. He plans to pursue a career in academic cardiac surgery with a focus on complex aortic surgery.
Last Updated on July 09, 2025.
Departments & Organizations
Education & Training
- MD
- Perelman School of Medicine at the University of Pennsylvania (2019)
- BA
- Dartmouth College, Chemistry
Research
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Research at a Glance
Yale Co-Authors
Frequent collaborators of Alan Chou's published research.
Publications Timeline
A big-picture view of Alan Chou's research output by year.
Hamid Mojibian, MD
John Elefteriades, MD
Mohammad Abdullah Zafar, MBBS
Prashanth Vallabhajosyula, MD, MS
Roland Assi, MD, MMS, FACS
9Publications
359Citations
Publications
2025
Sex differences in patterns of cardiovascular referral in patients with Marfan, Ehlers-Danlos, and Loeys-Dietz syndromes
Waldron C, Nasir A, Wang K, Chou A, Erez E, Vallabhajosyula P, Assi R. Sex differences in patterns of cardiovascular referral in patients with Marfan, Ehlers-Danlos, and Loeys-Dietz syndromes. JTCVS Open 2025, 24: 1-15. PMID: 40309713, PMCID: PMC12039419, DOI: 10.1016/j.xjon.2025.01.002.Peer-Reviewed Original ResearchCitationsAltmetricConceptsCardiothoracic surgeryConnective tissue diseaseFemale patientsEhlers-DanlosAortic pathologyLoeys-DietzCardiovascular medicineMale patientsTissue diseaseRetrospective review of patientsReview of patientsLoeys-Dietz syndromeDiagnosis of MFSReferral ratesSex differencesMFS patientsRetrospective reviewAortic diseaseRate of referralSurgeryPatientsMedical recordsClinical diagnosisElectronic medical recordsObjective diagnosis
2019
Heart-Kidney and Heart-Liver Transplantation Provide Immunoprotection to the Cardiac Allograft
Chou AS, Habertheuer A, Chin AL, Sultan I, Vallabhajosyula P. Heart-Kidney and Heart-Liver Transplantation Provide Immunoprotection to the Cardiac Allograft. The Annals Of Thoracic Surgery 2019, 108: 458-466. PMID: 30885846, DOI: 10.1016/j.athoracsur.2019.02.012.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsHeart-kidney transplantationHeart-liver transplantationHT patientsPrior single-center studiesTen-year patient survivalAcute rejection episodesCardiac allograft survivalEquivalent postoperative outcomesFirst posttransplant yearOrgan Sharing databaseSingle-center studyKaplan-Meier curvesChi-square testAllograft survivalHLT patientsRejection episodesSimultaneous kidneyCardiac allograftsHeart transplantationImmunologic outcomesLiver allograftsLiver transplantationPosttransplant yearPostoperative outcomesSimultaneous transplantation
2017
Positive family history of aortic dissection dramatically increases dissection risk in family members
Ma WG, Chou AS, Mok SCM, Ziganshin BA, Charilaou P, Zafar MA, Sieller RS, Tranquilli M, Rizzo JA, Elefteriades JA. Positive family history of aortic dissection dramatically increases dissection risk in family members. International Journal Of Cardiology 2017, 240: 132-137. PMID: 28502736, DOI: 10.1016/j.ijcard.2017.04.080.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsFirst-degree relativesAortic dissectionFamily historyExposure yearsMore first-degree relativesNew aortic dissectionFamily membersDetailed family history informationPositive family historyLower mean ageTime of dissectionFamily history informationAOD patientsPrognostic valueMean ageIndex patientsHigh riskDissection riskPatientsYounger ageDissectionAgeShort durationRiskFHADs
2016
Twenty‐five year outcomes following composite graft aortic root replacement
Mok SC, Ma W, Mansour A, Charilaou P, Chou AS, Peterss S, Tranquilli M, Ziganshin BA, Elefteriades JA. Twenty‐five year outcomes following composite graft aortic root replacement. Journal Of Cardiac Surgery 2016, 32: 99-109. PMID: 27966257, DOI: 10.1111/jocs.12875.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsMeSH KeywordsAdolescentAdultAgedAged, 80 and overAorta, ThoracicAortic DiseasesBioprosthesisBlood Vessel ProsthesisConnecticutEchocardiography, TransesophagealElective Surgical ProceduresFemaleFollow-Up StudiesForecastingHumansMaleMiddle AgedMorbidityPostoperative ComplicationsProsthesis DesignRetrospective StudiesSurvival RateTomography, X-Ray ComputedVascular GraftingYoung AdultConceptsAortic root replacementRoot replacementLong-term survivalConcomitant coronary artery bypass graftExcellent long-term survivalCoronary artery bypass graftComposite valved graftCoronary button techniqueAortic root diseaseLow operative riskArtery bypass graftGender-matched controlsFirst-time operationsLate reoperationOperative mortalityOperative riskAdverse eventsRedo proceduresBypass graftCabrol procedureSingle surgeonMean ageLate eventYear outcomesLower incidenceDo Familial Aortic Dissections Tend to Occur at the Same Age?
Chou AS, Ma WG, Mok SC, Ziganshin BA, Peterss S, Rizzo JA, Tranquilli M, Elefteriades JA. Do Familial Aortic Dissections Tend to Occur at the Same Age? The Annals Of Thoracic Surgery 2016, 103: 546-550. PMID: 27570161, DOI: 10.1016/j.athoracsur.2016.06.007.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsCT Imaging Artifact Simulating Aortic Dissection
Chou A, Ziganshin B, Elefteriades J. CT Imaging Artifact Simulating Aortic Dissection. Aorta 2016, 4 DOI: 10.12945/j.aorta.2016.15.021.Peer-Reviewed Original ResearchComputed Tomography Imaging Artifact Simulating Type A Aortic Dissection
Chou AS, Ziganshin BA, Elefteriades JA. Computed Tomography Imaging Artifact Simulating Type A Aortic Dissection. Aorta 2016, 04: 72-73. PMID: 27757406, PMCID: PMC5054759, DOI: 10.12945/j.aorta.2015.15.021.Peer-Reviewed Original ResearchCitations
2015
Long-term behavior of aortic intramural hematomas and penetrating ulcers
Chou AS, Ziganshin BA, Charilaou P, Tranquilli M, Rizzo JA, Elefteriades JA. Long-term behavior of aortic intramural hematomas and penetrating ulcers. Journal Of Thoracic And Cardiovascular Surgery 2015, 151: 361-373.e1. PMID: 26496809, DOI: 10.1016/j.jtcvs.2015.09.012.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsMeSH KeywordsAgedAged, 80 and overAortic AneurysmAortic DiseasesAortic DissectionAortic RuptureAortographyConnecticutFemaleHematomaHumansKaplan-Meier EstimateMagnetic Resonance ImagingMaleMiddle AgedProportional Hazards ModelsRetrospective StudiesRisk FactorsTime FactorsTomography, X-Ray ComputedTreatment OutcomeUlcerConceptsAtherosclerotic ulcerIntramural hematomaLate surgeryBetter long-term survivalYale-New Haven HospitalIntramural hematoma groupUnderwent late surgeryInitial medical managementAortic intramural hematomaInitial surgical treatmentType B dissectionInitial surgical managementLong-term survivalOperative deathsTypical dissectionB dissectionOverall survivalSurgical treatmentHematoma groupMedical managementSurgical managementVascular occlusionMedical recordsBranch arteriesHematomaAtypical aortic arch branching variants: A novel marker for thoracic aortic disease
Dumfarth J, Chou AS, Ziganshin BA, Bhandari R, Peterss S, Tranquilli M, Mojibian H, Fang H, Rizzo JA, Elefteriades JA. Atypical aortic arch branching variants: A novel marker for thoracic aortic disease. Journal Of Thoracic And Cardiovascular Surgery 2015, 149: 1586-1592. PMID: 25802134, DOI: 10.1016/j.jtcvs.2015.02.019.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsMeSH KeywordsAdultAgedAneurysmAorta, ThoracicAortic DiseasesAortographyCardiovascular AbnormalitiesCase-Control StudiesConnecticutDeglutition DisordersFemaleHumansMaleMiddle AgedPredictive Value of TestsPrevalenceRisk FactorsSubclavian ArteryTime FactorsTomography, X-Ray ComputedVascular MalformationsVertebral ArteryConceptsThoracic aortic diseaseAberrant right subclavian arteryLeft vertebral arteryRight subclavian arteryBovine aortic archAortic arch variationsAortic archControl groupSubclavian arteryAortic diseaseVertebral arteryArch anatomyAortic branch variationsNormal arch anatomyBicuspid aortic valveHistorical control groupAortic arch variantsAortic arch anatomySignificant higher prevalenceChart reviewBranch patternAortic aneurysmAortic valveHigh prevalenceGeneral population