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Published on: August 8, 2022
The Clinical Impact of SARS-CoV-2 on Hypertrophic Cardiomyopathy
Danish Saleh1, Zhiying Meng2, Nicholas Johnson3
1Division of Cardiology, Department of Medicine, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, USA.
Insights
COVID-19 infection significantly worsens outcomes for patients with Hypertrophic Cardiomyopathy (HCM). Infected HCM patients experienced higher rates of hospitalization, heart failure, myocardial injury, and mortality compared to uninfected HCM patients.
Area of Science:
- Cardiology
- Infectious Diseases
- Genomics
Background:
- Hypertrophic Cardiomyopathy (HCM) is a genetic heart condition.
- The clinical impact of SARS-CoV-2 (COVID-19) on HCM patients is not well understood.
Purpose of the Study:
- To describe the clinical impact of COVID-19 infection in patients with HCM.
- To compare outcomes of HCM patients with and without COVID-19.
Main Methods:
- A retrospective analysis of 6.6 million patients in a Chicago healthcare system.
- Identified adults with HCM and COVID-19 between 2019-2021.
- Used propensity score matching for age, sex, BMI, and cardiovascular history.
Main Results:
- HCM patients with COVID-19 had higher total hospitalizations (41.6 vs 23 per 100 persons).
- Increased heart failure hospitalizations (24.2 vs 8.7), NSTEMI (8.6 vs 4.6), and mortality (10.8 vs 5) were observed in COVID-19 infected HCM patients.
- Higher peak CRP levels were noted in HCM patients with COVID-19.
Conclusions:
- COVID-19 infection is associated with increased myocardial injury in HCM patients.
- HCM patients with COVID-19 experienced more total and heart failure hospitalizations.
- COVID-19 infection is linked to increased mortality in the Hypertrophic Cardiomyopathy population.
Background:
This study aims to understand and describe the clinical impact of SARS-CoV-2 (COVID-19) infection in patients with Hypertrophic Cardiomyopathy (HCM).
Methods:
A data repository of over 6.6 million patients in a large metropolitan (Chicago IL) healthcare system was queried to identify adults with a history of HCM and COVID-19 infection between 2019 and 2021. Propensity score-matched analysis was performed based on age, sex, BMI, and elements of the cardiovascular history, including tobacco use, hypertension, hyperlipidemia, myocardial injury, and heart failure.
Results:
Individuals with HCM and COVID-19 infection had more total hospitalizations (41.6 v 23 per 100 persons, p < 0.01), more heart-failure-related hospitalizations (24.2 v 8.7 per 100-persons, p < 0.01), more non-ST elevation myocardial injury (NSTEMI) hospitalizations (8.6 v 4.6 per 100-persons, p < 0.01), and increased mortality (10.8 v 5 per 100-persons, p < 0.01) compared to HCM patients without a history of COVID-19 infection. Patients with HCM and COVID-19 were also noted to have a higher peak CRP when compared to those without prior COVID-19 (Inter-quartile range of 9.0-106.9 v 1.8-21.3, p < 0.01).
Conclusions:
In patients with HCM, COVID-19 infection is associated with increased incidence of myocardial injury, increased number of total and heart-failure specific hospitalizations, and increased mortality.
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