The Effects of Ambulatory Blood Pressure Monitoring on the Quality of Sleep and the Monitoring Parameters in Aged Patients with Hypertension

Objective To observe frequent blood pressure measuring at night during the ambulatory blood pressure monitoring( ABPM) effect on sleeping quality in the elderly patients,which may interfere with the real changes in blood pressure and shift the diurnal rhythm curve. Methods Fifty essential hypertensive patients admitted by Dalian PLA 210thHospital during Mar. 2010 and Mar. 2012 were included. The same patient had twice ABPM during five days. The first test did not receive any drugs intervention( before intervention group).While during the second test the patients were given tablets of Alpraolamum to simulate the sleeping without ABPM interference( after intervention group). Record data: sleep time and awake times at night in different conditions before and after interference by Alpraolamum during ABPM; four blood pressure diurnal rhythms( dipper,nondipper,anti-dipper,dark dipper),nighttime systolic and diastolic blood pressure reduction rates( NSBPRR,NDBPRR); morning blood pressure surge( MBPS),average systolic blood pressure in two hours after getting up,nighttime systolic and diastolic blood pressure standard deviation( nSBP-SD,nDBP-SD),nighttime systolic and diastolic blood pressure load( nSBPL,nDBPL). Results Significant differences in the sleep time and awake times during night between the two groups were observed( P 0. 05); NSBPRR,NDBPRR,morning mean systolic blood pressure,nSBP-SD,nSBPL,nDBPL were significantly different between two groups( P 0. 05).Conclusion ABPM examination may influence the sleeping quality of aged patients with hypertension,which may result in NSBPRR and NDBPRR shrink and shifted diurnal rhythm curve,increased nSBPV and nBPL.