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Endovascular Transcatheter Aortic Valve Replacement Outcomes in Hypertrophic Cardiomyopathy: Insights from the National Inpatient Sample (2014-2018).
Cardiology 2023
BACKGROUND: Outcomes of patients with hypertrophic cardiomyopathy (HCM) following transcatheter aortic valve replacement (TAVR) remain largely unknown.
OBJECTIVES: This study sought to assess the clinical characteristics and outcomes of HCM patients following TAVR.
METHODS: We queried the National Inpatient Sample from 2014 to 2018 for TAVR hospitalizations with and without HCM, creating a propensity-matched cohort to compare outcomes.
RESULTS: 207,880 patients that underwent TAVR during the study period, 810 (0.38%) had coexisting HCM. In the unmatched population, TAVR patients with HCM compared to those without HCM, were more likely to be female, had a higher prevalence of heart failure, obesity, cancer, and history of pacemaker/implantable cardioverter defibrillation, and were more likely to have nonelective and weekend admissions (p for all <0.05). TAVR patients without HCM had higher prevalence of coronary artery disease, prior percutaneous coronary intervention, prior coronary artery bypass grafting, and peripheral arterial disease compared to their counterparts (p for all <0.05). In the propensity-matched cohort, TAVR patients with HCM had significantly higher incidence of in-hospital mortality, acute kidney injury/hemodialysis, bleeding complications, vascular complications, permanent pacemaker requirement, aortic dissection, cardiogenic shock, and mechanical ventilation requirement.
CONCLUSION: Endovascular TAVR in HCM patients is associated with an increased incidence of in-hospital mortality and procedural complications.
OBJECTIVES: This study sought to assess the clinical characteristics and outcomes of HCM patients following TAVR.
METHODS: We queried the National Inpatient Sample from 2014 to 2018 for TAVR hospitalizations with and without HCM, creating a propensity-matched cohort to compare outcomes.
RESULTS: 207,880 patients that underwent TAVR during the study period, 810 (0.38%) had coexisting HCM. In the unmatched population, TAVR patients with HCM compared to those without HCM, were more likely to be female, had a higher prevalence of heart failure, obesity, cancer, and history of pacemaker/implantable cardioverter defibrillation, and were more likely to have nonelective and weekend admissions (p for all <0.05). TAVR patients without HCM had higher prevalence of coronary artery disease, prior percutaneous coronary intervention, prior coronary artery bypass grafting, and peripheral arterial disease compared to their counterparts (p for all <0.05). In the propensity-matched cohort, TAVR patients with HCM had significantly higher incidence of in-hospital mortality, acute kidney injury/hemodialysis, bleeding complications, vascular complications, permanent pacemaker requirement, aortic dissection, cardiogenic shock, and mechanical ventilation requirement.
CONCLUSION: Endovascular TAVR in HCM patients is associated with an increased incidence of in-hospital mortality and procedural complications.
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