老年高血压病病人的动态血压特点

目的 探讨老年高血压的动态血压特点。方法 采用无创动态血压仪监测并比较12例正常老年对照组、51例非老年高血压组、52例老年高血压组的ABPM各参数。结果 老年高血压组24h、白天、夜间SBP、DBP均值除白天DBP外,均显著高于老年对照组(P<0.05,P<0.01,P<0.001)。血压负荷值老年高血压组24h、白天、夜间SBP显著增高(P<0.01,P<0.001),DBP无差异。老年高血压组呈现夜间SBP下降率减小(P<0.05)。老年高血压与非老年高血压组比较,前者DBP均值及负荷值明显降低(P<0.01,P<0.001),而SBP两组无差异。各期老年高血压比较除白天SBP负荷值有差异外(P<0.05),余参数均无差异。结论 老年高血压主要表现为收缩期高血压,并伴有夜间血压下降率的减小。

Ambulatory blood pressure in elderly hypertensives

Objective To evaluate the feature of ambulatory blood pressure monitoring(ABPM) in elderly hypertensions. Methods Noninvasive ambulatory blood pressure recorder was used to carry out 24-hour ABPM in 52 elderly hypertensive patients and 51 youngerly hypertensive patients and 12 elderly controls. Results 24-hour mean SBP and DBP,daytime mean SBP,nighttime mean SBP and DBF were significantly higher in elderly hypertensive group than those in control group(P<0.05,P<0.01,P<0.001). SBP loads of elderly hypertensive group were higher than those of control group in 24-hour, daytime and nighttime (.P < 0.01,P<0.001). No difference was observed in DBP load. Nocturnal drop rate in blood pressure was less in elderly hypertensive group than in controls group(P<0.05). Elderly hypertensions displaid siglificantly lower mean DBP and DBP load at 24-hour, daytime and nighttime(P < 0.01, P < 0.001, P < 0.001). Except to daytime SBP,no differences were observed in different stages. Conclusion Elderly hypertension mainly displays systolic hypertension,and less nocturnal drop rate in blood pressure.