长时间立、坐、卧三体位对老年高血压患者血压值影响的观察

目的研究不同体位对老年高血压患者血压值的影响,并探讨可能的影响因素。方法连续选取在高血压科住院的60岁以上高血压患者为试验组,并以同期住院的45～60岁之间的高血压患者作为中年对照组,45岁以下的高血压患者为青年对照组,每组入选22例。试验日所有受试者停服降压药物并且避免吸烟、饮酒及饮用咖啡等影响准确测量血压的干扰因素。试验时每位患者依次采取立、坐、卧三体位,每种体位均保持2h,在保持同一体位的2h末使用台式汞柱血压计测量血压。结果试验组的收缩压随体位改变有显著性变化（P=0.026）：卧位、坐位、立位依次减低.分别为（140±16）,（134±14）,（130±17）mmHg。但舒张压随体位改变无显著性变化（P=0.082）。中年对照组和青年对照组的收缩压及舒张压随体位改变均无显著性变化（P〉0.05）。通过多元回归分析发现,胆固醇与老年高血压患者体位收缩压差值有关。结论立、坐、卧三体位对老年高血压患者的收缩压有显著影响。胆固醇是老年患者体位收缩压差值的独立影响因素。

Influence of standing, sitting and supine postures on blood pressure in elderly hypertensive patients

Objective To study blood pressure(BP) response to changes in body postures in elderly patients with hypertension, and to explore the possible influencing factors that associated with BP difference among standing,sitting and supine postures. Methods Sixty-six consecutive hypertensive patients were divided into experimental group(>60 years),middle-age control group(45-60 years) and young control group(<45 years),with 22 in each group.On experimental day,medications lowering blood pressure were stopped in all ...