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Hospitalizations for Cardiovascular Diseases During the Early Stage of the COVID-19 Pandemic in Japan
Tadafumi Sugimoto1,2, Atsushi Mizuno2,3,4,5, Daisuke Yoneoka6
1Department of Cardiology and Nephrology, Mie University Graduate School of Medicine Tsu Japan.
Insights
The COVID-19 pandemic led to fewer hospitalizations for cardiovascular disease (CVD) treatment in Japan. This decrease in cardiovascular disease hospitalizations occurred even during the pandemic's early stages.
Area of Science:
- Cardiology
- Public Health
- Epidemiology
Background:
- Reductions in hospitalizations for myocardial infarction and heart failure during COVID-19 restrictions were noted.
- The overall impact on cardiovascular disease (CVD) treatment hospitalizations in early pandemic stages remained unclear.
Purpose of the Study:
- To analyze changes in the overall number of hospitalizations for cardiovascular disease (CVD) treatment during the early COVID-19 pandemic.
- To assess the association between COVID-19 spread and CVD hospitalizations in Japan.
Main Methods:
- Utilized data from 574 hospitals in the Japanese Registry of All Cardiac and Vascular Diseases-Diagnosis Procedure Combination database (April 2015-March 2020).
- Employed a quasi-Poisson regression model to estimate hospitalization numbers for CVD treatment.
- Analyzed actual versus estimated hospitalizations for acute and scheduled CVD treatments between January and March 2020.
Main Results:
- Hospitalizations for acute CVD were 84.3% of estimated values, and scheduled hospitalizations were 88.7%.
- Specific conditions like acute heart failure (81.1%), scheduled valvular disease (84.6%), and aortic aneurysm (83.8%) showed decreased hospitalizations.
- Results remained consistent even when analyzing facilities without hospitalization restrictions.
Conclusions:
- The spread of COVID-19 was associated with a significant decrease in cardiovascular disease hospitalizations in Japan.
- This reduction in CVD treatment admissions was evident even in the initial phases of the pandemic.
Abstract:
Although reductions in hospitalizations for myocardial infarction and heart failure have been reported during the period of COVID-19 pandemic restrictions, it is unclear how the overall number of hospitalizations for cardiovascular disease (CVD) treatment changed in the early stages of the pandemic. We analyzed the records of 574 certified hospitals affiliated with the Japanese Circulation Society and retrieved data from April 2015 to March 2020. Records were obtained from the nationwide Japanese Registry of All Cardiac and Vascular Diseases-Diagnosis Procedure Combination database. A quasi-Poisson regression model was used to estimate the number of hospitalizations for CVD treatment. Between January and March 2020, when the number of COVID-19 cases was relatively low in Japan, the actual/estimated number of hospitalizations for acute CVD was 18,233/21,634 (84.3%), whereas the actual/estimated number of scheduled hospitalizations was 16,921/19,066 (88.7%). The number of hospitalizations for acute heart failure and scheduled hospitalizations for valvular disease and aortic aneurysm were 81.1%, 84.6%, and 83.8% of the estimated values, respectively. A subanalysis that considered only facilities without hospitalization restrictions did not alter the results for these diseases. The spread of COVID-19 was associated with a decreased number of hospitalizations for CVD in Japan, even in the early stages of the pandemic.
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