Effect of the Great East Japan Earthquake on heart rate variability: an analysis of Holter ECG big data

2016 Fiscal Year Final Research Report

• Project/Area Number: 25461062
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Cardiovascular medicine
• Research Institution: Nagoya City University
• Principal Investigator: FUKUTA Hidekatsu 名古屋市立大学, 大学院医学研究科, 助教 (80448711)
• Co-Investigator(Renkei-kenkyūsha): KODAMA Itsuo 名古屋大学, 名誉教授 (30124720)
• Research Collaborator: YAMAGUCHI Eiji (株)スズケン ; OGIWARA Shinichiro (株)スズケン
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: 心拍変動 / 震災

Outline of Final Research Achievements

Although cardiovascular events have been reported to increase after great disaster, the mechanisms remain unknown. Decreased heart rate (HR) variability predicts cardiovascular mortality in various populations. We have constructed Holter ECG big data in a project named the Allostatic State Mapping by Ambulatory ECG Repository (ALLSTAR) since 2007. We examined the impact of the Great East Japan Earthquake that occurred in 2011 on HR variability using the database of ALLSTAR project. In affected area, deceleration capacity, a powerful predictor for mortality among measures of HR variability, was decreased in 2011 compared with other years. In unaffected area, no such decrease was observed. We observed that the Great East Japan Earthquake decreased HR variability. These results suggest that decreased HR variability may contribute to an increased risk for cardiovascular mortality after great disaster.

Free Research Field

循環器内科学