Reproducibility of heart rate measured in the clinic and with 24-hour intermittent recorders.
Am J Hypertens
; 13(1 Pt 1): 92-8, 2000 Jan.
Article
in En
| MEDLINE
| ID: mdl-10678277
ABSTRACT
This study was undertaken to assess the reproducibility of office versus ambulatory heart rates in 839 hypertensive subjects participating in the Hypertension and Ambulatory Recording Venetia Study (HARVEST). A 24-hour heart rate was recorded twice; this procedure was repeated three months later. Reproducibility was better for ambulatory than for office measurement, and was greater for 24-hour than for daytime heart rate, and lowest for night-time heart rate. Reproducibility of office heart rate was impaired above 85 bpm, and was poorer in subjects with more severe office hypertension. A small but significant decrease in average daytime (-1 bpm, P < 0.0001) and virtually no change in night-time heart rate (-0.3 bpm, NS) were observed at repeat recording. Heart rate reproducibility indices were related to the extent of the heart rate and blood pressure white-coat effect, but did not vary according to age, gender, body mass index, day-night blood pressure difference, or alcohol or tobacco use. Results indicate that heart rate recorded over the 24 hours has a better reproducibility than office heart rate, and could thus be a better prognostic indicator than traditional measurement of resting heart rate in the hospital setting.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Monitoring, Ambulatory
/
Heart Rate
/
Hypertension
Type of study:
Clinical_trials
/
Prognostic_studies
Limits:
Adult
/
Female
/
Humans
/
Male
Language:
En
Journal:
Am J Hypertens
Journal subject:
ANGIOLOGIA
Year:
2000
Document type:
Article
Affiliation country:
Italy