Sinus bradycardia: normal phenomenon or risk factor? Evaluation based on recent evidence
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Updated: May 19, 2026

Microelectrode Array Recording of Sinoatrial Node Firing Rate to Identify Intrinsic Cardiac Pacemaking Defects in Mice
Published on: July 5, 2021
Edison F Liu1, Limin Chen, Billy X Gao
1Underwriting & Claims, Life Greater China, Munich Re Beijing, 18F, Tower C, Yintai Center, No. 2 Jianwai Avenue, Chaoyang District, Beijing 100022, PR China. fliu@munichre.com
Abstract:
Although sinus bradycardia is a common abnormality seen in medical reports, the proper evaluation of sinus bradycardia is poorly understood by physicians. Recent data from heart rate epidemiologic and cohort studies has emerged regarding the risk stratification of sinus bradycardia, which may help insurers better underwrite this abnormality. In this review, an operational age-related heart rate reference based on recent advances is provided along with a suggested approach to the risk stratification and assessment of prognosis for inappropriate sinus bradycardia.
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