Regular pulse rate but irregular heart rate?

Regular pulse rate but irregular heart rate?

This 30-year-old male patient attended the emergency department because of dizziness accompanied by selfassessed regular pulse rates of 30–40 bpm. Physical examination was normal but cardiac auscultation revealed frequent premature beats. A subsequent 12-lead ECG documented the arrhythmia (Fig. 1). Similar episodes had occurred 12 months ago but thorough cardiac evaluation, including echocardio...

Arterial pulse wave velocity and heart rate.

Arterial Pulse Wave Velocity and Heart Rate

To the Editor: The concerns raised by Lantelme et al1 about the relationship between heart rate and pulse wave velocity (PWV) properly apply to the method they employed, not to the conventional method, nor to the long-established relationship between PWV and arterial stiffness. Lantelme et al used Complior, as did the 3 other studies (Lantelme references 8, 15, 17), which appeared to show incre...

Controlled 5-mo aerobic training improves heart rate but not heart rate variability or baroreflex sensitivity.

Endurance-trained athletes have increased heart rate variability (HRV), but it is not known whether exercise training improves the HRV and baroreflex sensitivity (BRS) in sedentary persons. We compared the effects of low- and high-intensity endurance training on resting heart rate, HRV, and BRS. The maximal oxygen uptake and endurance time increased significantly in the high-intensity group com...

Heart rate: an important confounder of pulse wave velocity assessment.

Arterial stiffness is a strong determinant of cardiovascular risk. Pulse wave velocity (PWV) is an index of arterial stiffness, and its prognostic value has been repeatedly emphasized. The purpose of the present study was to assess the effect of heart rate (HR) on PWV. Twenty-two subjects with a mean age of 77.8+/-8.4 (SD) years and permanent cardiac pacing were studied. In each subject, PWV wa...