Key result
, no new claims.
Why the study?
Detailed data on healthcare utilization and costs following ICD or CRT-D shock events in Japan were lacking.
Do appropriate ICD/CRT-D shocks result in different healthcare utilization and costs compared to inappropriate shocks in adult patients?
Observational (n=84)
Yes
Do appropriate ICD/CRT-D shocks result in different healthcare utilization and costs compared to inappropriate shocks in adult patients?
Appropriate ICD/CRT-D shocks are associated with substantially higher healthcare utilization, longer hospital stays, and greater costs compared to inappropriate shocks in the Japanese clinical setting.
Answers are grounded in this paper and cite their sources.
Clinicians should prepare for greater post-shock resource use; extends economic burden data to Japanese ICD/CRT-D cohorts.
Background: Implantable cardioverter-defibrillators (ICDs) and cardiac resynchronization therapy with defibrillators (CRT-Ds) effectively prevent sudden cardiac death. However, there is a lack of detailed data on healthcare utilization and healthcare cost following ICD/CRT-D shock events in Japan. This study aimed to examine real-world data (RWD) stored in an emergency department system to clarify healthcare utilization and healthcare costs associated with ICD/CRT-D shocks in Japan. Methods and Results: This retrospective study analyzed RWD from four tertiary hospitals between January 2022 to June 2024. Among 1,807 ICD/CRT-D implanted adult patients, 84 patients (4.6%) who visited the hospital at least once following an ICD/CRT-D shock event were identified. Of these, a total of 146 ICD/CRT-D shock events were observed, with 33 patients (39.3%) experiencing multiple episodes. Of these, 122 (83.6%) were appropriate and 24 (16.4%) were inappropriate. Hospitalization was required in 55 (37.7%) cases. Appropriate shocks were associated with longer hospital stays (24.6 ± 29.3 vs. 12.5 ± 4.2 days) and higher costs (1,123,531 ± 2,195,483 JPY vs. 67,091 ± 131,282 JPY) than inappropriate shocks. Conclusion: In this multicenter retrospective study using real-world data in Japan, we investigated the healthcare utilization and costs associated with ICD/CRT-D shock events. Our findings provide valuable insight into post-shock care in daily practice and highlight the need for optimized management strategies to improve care delivery and resource use in the Japanese clinical setting.
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Noda et al. (2026) conducted an observational in ICD/CRT-D shock events (n=84). Appropriate ICD/CRT-D shocks vs. Inappropriate ICD/CRT-D shocks was evaluated on Healthcare costs (JPY). Appropriate ICD/CRT-D shocks were associated with longer hospital stays and higher healthcare costs (1,123,531 vs. 67,091 JPY) compared to inappropriate shocks.
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