肾性高血压患者的动态血压昼夜节律

本研究应用２４小时无创性全自动动态血压记录仪观察了６７例受试对象，其中肾实质性高血压（ＲＰＨＴ）１２例；肾血管性高血压（ＲｖＨＴ）Ⅱ例；Ⅰ～Ⅱ期原发性高血压（ＥＨＴ）４４例。结果表明，各组受试者的偶测血压均明显高于动态血压。ＲＰＨＴ和ＲＶＨＴ的昼夜节律均明显减弱，收缩压和舒张压的夜间下降值均明显小于原发性高血压患者，夜间下降率低于１０％者的比率却明显高于原发性高血压患者．ＥＨＴ的动态血压呈夜间下降、白昼上升的节律性。

CIRCADIAN BLOOD PRESSURE RHYTHM IN RENAL HYPERTENSION

Twenty-four-hour noninvasive ambulatory blood pressures(ABP) were studied in 87 consecutive subjects(20 in the normotensive group,NT;44 with essential hyperiension in WHO stages I or II,EHT;12 with renoparenchymatous hypertension,RHT;11 with renovascular hypertension,RVHT).It was found that office blood pressure was higher than ambulatory blood pressure in all subjects;the ambulatory blood pressure was characterized by a nocturnal fall and a diurnal rise in EHT and NT.However,the circadian blood pressure rhythm was attenuated in RHT and RVHT,in which the rate of nocturnal fall<10% was significantly higher than that in EHT.