Lurbe E, Redón J, Tacons J, Alvarez V
Unidad de Nefrología Pediátrica, Hospital General Universitari de València.
Med Clin (Barc). 1995 Jan 14;104(1):6-10.
The aim of the present study was to obtain out patient blood pressure values in normotensive children based on age, height, and sex in order to determine reference values.
Out patient blood pressure monitorization was performed in 248 healthy normotensive children (129 males and 119 females, ages 6 to 16 years) (casual blood pressure < P95 specific for age and sex) over 24 hours by the Spacelabs 90207 oscilometric monitor on a normal schoolday. An appropriately sized armband was chosen for each case with the readings being programmed every 20 minutes between 6:00 a.m. and midnight and every 30 minutes for the remaining readings. The means of 24 hour blood pressure (all the readings obtained), day period (8 to 22 hours) and night period (midnight to 6:00 a.m.) and the circadian variability (difference and the ratio between the mean values of day and night) were calculated. The children were divided into subgroups according to sex, age (6-9, 10-12 and 13-16 years) and height (1.09-1.37; 1.38-1.51, and 1.52-1.75 meters). Monitorizations with a percentage of erroneous readings over 30% were excluded from the study.
Only 7 children were excluded due to a high percentage of erroneous readings. The mean of the valid readings made in the remaining 241 cases was 62 +/- 7. A significant increase was observed in the values of out patients systolic blood pressure with age and height. The same was not seen in diastolic blood pressure. Nocturnal blood pressures were lower to the diurnal pressures (11% systolic, 22% diastolic). P95 was considered as the upper limit of normality for the means of each of the periods of systolic and diastolic blood pressure in each subgroup of sex, age and height.
The blood pressure values obtained from a population of normotensive children may be useful to understand the behaviour of out patient blood pressure in children and establish the limit for defining high blood pressure.
本研究的目的是根据年龄、身高和性别获取血压正常儿童的门诊血压值，以确定参考值。
通过Spacelabs 90207示波监测仪，在正常上学日对248名健康血压正常儿童（129名男性和119名女性，年龄6至16岁）（随机血压<P95，按年龄和性别）进行24小时门诊血压监测。为每个病例选择尺寸合适的臂带，读数在上午6:00至午夜之间每20分钟记录一次，其余读数每30分钟记录一次。计算24小时血压（所有获得的读数）、白天时段（8至22小时）和夜间时段（午夜至上午6:00）的平均值以及昼夜变异性（白天和夜间平均值之间的差值和比值）。根据性别、年龄（6 - 9岁、10 - 12岁和13 - 16岁）和身高（1.09 - 1.37米；1.38 - 1.51米和1.52 - 1.75米）将儿童分为亚组。读数错误百分比超过30%的监测被排除在研究之外。
仅7名儿童因错误读数百分比高而被排除。其余241例有效读数的平均值为62±7。观察到门诊收缩压值随年龄和身高显著增加。舒张压未见此情况。夜间血压低于日间血压（收缩压低11%，舒张压低22%）。P95被视为每个性别、年龄和身高亚组收缩压和舒张压各时段平均值的正常上限。
从血压正常儿童群体获得的血压值可能有助于了解儿童门诊血压情况并确定高血压定义的界限。
