Alan Enriquez, MD
Associate Professor of Medicine (Cardiovascular Medicine)Cards
About
Research
Publications
2026
Management of Idiopathic Outflow Tract Ventricular Arrhythmias
Enriquez A. Management of Idiopathic Outflow Tract Ventricular Arrhythmias. Arrhythmia & Electrophysiology Review 2026, 15: e16. PMID: 42170353, PMCID: PMC13187934, DOI: 10.15420/aer.2025.56.Peer-Reviewed Original ResearchVentricular outflow tractVentricular arrhythmiasCatheter ablationPremature ventricular contractionsOutflow tractFrequent premature ventricular contractionsLeft ventricular outflow tractOutflow tract ventricular arrhythmiasRight ventricular outflow tractVentricular contractionsVenous ethanol ablationIdiopathic ventricular arrhythmiasOutflow tract regionComplex anatomical relationshipsSite of originEthanol ablationVentricular tachycardiaAnatomical relationshipArrhythmiasCatheterAblationTractCardiomyopathyTachycardia
2023
Variation in hospital use of cardiac resynchronization therapy-defibrillator among eligible patients and association with clinical outcomes
Chui P, Lan Z, Freeman J, Enriquez A, Khera R, Akar J, Masoudi F, Ong E, Curtis J. Variation in hospital use of cardiac resynchronization therapy-defibrillator among eligible patients and association with clinical outcomes. Heart Rhythm 2023, 20: 1000-1008. PMID: 36963741, DOI: 10.1016/j.hrthm.2023.03.022.Peer-Reviewed Original ResearchConceptsEligible patientsICD RegistryCardiac resynchronizationNational Cardiovascular Data Registry ICD RegistryCRT-D implantationCRT-D useHospital-level outcomesStrong guideline recommendationsHospital-level variationPatient-level outcomesIntraclass correlation coefficientQuality improvement effortsHospital mortalityGuideline indicationsReadmission ratesSelect patientsClinical outcomesGuideline recommendationsHospital variationHospital ratesUse of CRTHospital levelHospital usePatientsCase mixShould we burn our bridges with AVNRT ablation?
Purtell C, Enriquez A. Should we burn our bridges with AVNRT ablation? Journal Of Interventional Cardiac Electrophysiology 2023, 66: 1041-1042. PMID: 36787092, DOI: 10.1007/s10840-023-01501-3.Commentaries, Editorials and Letters
2020
Arrhythmias During Pregnancy and Postpartum
Enriquez A, Tedrow U. Arrhythmias During Pregnancy and Postpartum. Contemporary Cardiology 2020, 645-669. DOI: 10.1007/978-3-030-41967-7_28.ChaptersStructural heart diseaseLong safety recordType of arrhythmiaFetal outcomesRefractory arrhythmiasDevice therapyAntiarrhythmic drugsCatheter ablationAtrial fibrillationFirst trimesterCommon arrhythmiaPatient populationHeart diseaseSevere symptomsCardiac arrhythmiasArrhythmiasTherapeutic interventionsPregnancyMaternal populationMinimal dataTherapySafety recordTrimesterFibrillationPostpartumFocal Atrial Tachycardia from the Non-Coronary Cusp
Enriquez A, Freeman J. Focal Atrial Tachycardia from the Non-Coronary Cusp. 2020, 281-284. DOI: 10.1007/978-3-030-28533-3_69.BooksThe Use of the N + 1 Difference in Entrainment Mapping of Ventricular Tachycardia
Enriquez A, Freeman J. The Use of the N + 1 Difference in Entrainment Mapping of Ventricular Tachycardia. 2020, 425-427. DOI: 10.1007/978-3-030-28533-3_102.Books
2019
BUNDLE BRANCH REENTRANT VENTRICULAR TACHYCARDIA AFTER TRANSCATHETER AORTIC VALVE REPLACEMENT
Workman V, Freeman J, Forrest J, Upadhyaya K, Carney K, Enriquez A. BUNDLE BRANCH REENTRANT VENTRICULAR TACHYCARDIA AFTER TRANSCATHETER AORTIC VALVE REPLACEMENT. Journal Of The American College Of Cardiology 2019, 73: 2934. DOI: 10.1016/s0735-1097(19)33540-5.Peer-Reviewed Case Reports and Technical Notes
2015
Impact of general anesthesia on initiation and stability of VT during catheter ablation
Nof E, Reichlin T, Enriquez AD, Ng J, Nagashima K, Tokuda M, Barbhaiya C, John RM, Michaud GF, Tedrow U, Gross W, Stevenson WG. Impact of general anesthesia on initiation and stability of VT during catheter ablation. Heart Rhythm 2015, 12: 2213-2220. PMID: 26072026, DOI: 10.1016/j.hrthm.2015.06.018.Peer-Reviewed Original ResearchMeSH KeywordsAnesthesia, GeneralBody Surface Potential MappingBostonCatheter AblationCohort StudiesConscious SedationFemaleFollow-Up StudiesHospitals, UniversityHumansIsraelMalePostoperative ComplicationsRecurrenceRetrospective StudiesRisk AssessmentSeverity of Illness IndexStatistics, NonparametricSwitzerlandTachycardia, VentricularTreatment OutcomeConceptsClinical ventricular tachycardiaGeneral anesthesiaInducible ventricular tachycardiaInduced ventricular tachycardiaVentricular tachycardiaHemodynamic supportVT inducibilityConscious sedationRadiofrequency ablationEffects of GANonclinical ventricular tachycardiaLow ejection fractionMajority of patientsIntravenous conscious sedationEjection fractionNonischemic cardiomyopathyCatheter ablationRetrospective studyVT inductionVT morphologiesProspective groupRetrospective comparisonGA groupPatientsProcedure outcomesBetter outcome of ablation for sustained outflow-tract ventricular tachycardia when tachycardia is inducible
Choi EK, Kumar S, Nagashima K, Lin KY, Barbhaiya CR, Chinitz JS, Enriquez AD, Helmbold AF, Baldinger SH, Tedrow UB, Koplan BA, Michaud GF, John RM, Epstein LM, Stevenson WG. Better outcome of ablation for sustained outflow-tract ventricular tachycardia when tachycardia is inducible. EP Europace 2015, 17: 1571-1579. PMID: 25840288, DOI: 10.1093/europace/euv064.Peer-Reviewed Original ResearchConceptsPremature ventricular contractionsOvert structural heart diseaseOutflow tract ventricular tachycardiaMultiple VT morphologiesInducible ventricular tachycardiaStructural heart diseaseSustained ventricular tachycardiaVentricular tachycardiaInducible groupHeart diseaseVT morphologiesBetter outcomesInducibility of VTSpontaneous sustained ventricular tachycardiaCatheter ablationOutflow tract regionAblation outcomesMM groupVentricular contractionsGreat vesselsPatientsSM groupTachycardiaPVC morphologyOutcomes“Needle-in-needle” epicardial access: Preliminary observations with a modified technique for facilitating epicardial interventional procedures
Kumar S, Bazaz R, Barbhaiya CR, Enriquez AD, Helmbold AF, Chinitz JS, Baldinger SH, Mahida S, McConville JW, Tedrow UB, John RM, Michaud GF, Stevenson WG. “Needle-in-needle” epicardial access: Preliminary observations with a modified technique for facilitating epicardial interventional procedures. Heart Rhythm 2015, 12: 1691-1697. PMID: 25828599, DOI: 10.1016/j.hrthm.2015.03.045.Peer-Reviewed Original Research
Clinical Care
Overview
Alan Enriquez, MD, is a cardiac electrophysiologist who focuses on abnormal heart rhythms and likens himself to being an electrician for the heart.
Coming from an immediate and extended family filled with physicians, Dr. Enriquez says he grew up set against becoming a physician. “I didn’t want to do what everyone else did. For my undergraduate degree, I started off as a double-major in neuroscience and economics thinking I wanted to go into business,” he says. “But by sophomore year, my heart wasn’t in it and I was really interested in science and medicine.”
He chose electrophysiology as his specialty because of its blend of working with his hands and taking care of patients over a long period of time. “I think it’s the best field because of this unique mixture. It’s also a really young specialty with so much innovation in recent years. We are doing new things every single day,” he says. “I truly enjoy my work.”
Dr. Enriquez performs catheter ablation of complex arrhythmias such as refractory persistent atrial fibrillation, ventricular tachycardia, and arrhythmias related to heart failure and valve disease.
“I focus on abnormal heart rhythms. Often, that is helping people with symptoms, such as an especially fast heartbeat, and making them feel better. When a patient has an irregular heartbeat, I always reassure them that we can manage this,” Dr. Enriquez says. “There are certain conditions that are more serious, but we can deal with those, too. We have defibrillators and pacemakers and procedures like ablation to help.”
Dr. Enriquez’s research interests include exploring genetic diseases that can cause ventricular tachycardia.
Clinical Specialties
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Atrioventricular Block
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Cardiovascular Medicine
PO Box 208017
New Haven, CT 06520-8017
United States
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