SHORT-TERM REPRESENTATIVES OF DAYTIME AND NIGHTTIME AMBULATORY BLOOD PRESSURES

被引:17
作者
CHANUDET, X
CHAU, NP
LARROQUE, P
机构
[1] UNIV PARIS 07, INSERM,U263,UNITE RECH BIOMATH & BIOSTAT,TOUR 53, 1 ETAGE,2 PL JUSSIEU, F-75221 PARIS 05, FRANCE
[2] HOP BEGIN, SERV MED INTERNE & PATHOL CARDIOVASC, ST MANDE, FRANCE
关键词
AMBULATORY BLOOD PRESSURE; SHORT-TERM REPRESENTATIVES;
D O I
10.1097/00004872-199206000-00013
中图分类号
R6 [外科学];
学科分类号
1002 ; 100210 ;
摘要
Objective: To see whether measurements of ambulatory blood pressure during short-term daytime and night-time periods can represent complete daytime and night-time pressures accurately. Design: Short-term measurements would be less uncomfortable for patients, easier to perform and could lead to fewer missing values, outliers or artefacts than full-day measurements, especially when repeated monitorings are required. Method: Ambulatory blood pressure was measured every 15 min for 24 h in 254 subjects with normal or borderline office blood pressure. Each pressure profile included at least 80 valid readings. Mean blood pressures for different l-, 2-, 3-, 4-, 5- and 6-h spans were calculated and compared with mean daytime and night-time values using paired Student's t-test. Results: One or two-hour spans of daytime blood pressure poorly represented mean daytime pressure. In contrast, 4-h readings, selected between 1000-2200 h represented daytime blood pressure with good accuracy. Over the total sample, 4-h mean blood pressure readings from 1000 2200 h differed from daytime readings by < 2 mmHg and 2-h mean readings from 0300-0700 h differed from mean night-time readings by < 1 mmHg. Conclusion: We suggest that 4-h measurements of ambulatory blood pressure during the daytime and 2-h measurements at night (with time spans selected as indicated as above) may be of value.
引用
收藏
页码:595 / 600
页数:6
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