pulse deficit
Difference between heart rate and peripheral pulse rate, indicating inadequate cardiac output or arrhythmia.
Full Definition
Pulse deficit occurs when the peripheral pulse rate is lower than the heart rate detected by cardiac auscultation or ECG monitoring. This finding suggests that some cardiac contractions are not generating sufficient stroke volume to create palpable peripheral pulses. Common causes include atrial fibrillation, premature ventricular contractions, or severe heart failure. In vascular patients, pulse deficit may indicate compromised cardiac function affecting peripheral perfusion.
Usage
Usage note: Always document both apical and radial pulse rates when describing pulse deficit.
In Context
- "Physical examination revealed a pulse deficit of 15 beats per minute." — Clinical assessment
- "The pulse deficit resolved following cardioversion to normal sinus rhythm." — Progress note