cardiography; heartbeat recording
Medical term for recording the mechanical or electrical activity of the heart, often used in contexts like 心拍記録装置 (cardiography device).
The doctor checked the cardiography record to see if there was an arrhythmia.
心電図 (ECG/EKG) specifically records the electrical activity of the heart, while 心拍記録 is a broader term for any heartbeat recording, including mechanical or sound-based methods.
Compound of 心拍 (heartbeat) and 記録 (record). A straightforward modern medical term.