Comparative study of ambulatory blood pressure monitoring of different positions in patients with hypertension.

Objective To investigate whether ambulatory blood pressure monitoring of lateral position,supine position,sitting position and standing position was different or not in patients with hypertension.Methods Blood pressure measurement of supine position,left lateral position,right lateral position,sitting position and standing position was measured in 51 hypertension patients,with ambulatory blood pressure monitoring by the brachial artery of right upper limb.Results The mean systolic pressure of supine position was 152.10±14.55mm Hg,that of left lateral position was 129.21±14.92mm Hg.There was significant difference in the two groups,P0.01.The mean systolic pressure of right lateral position,sitting position and standing position was separately 150.42±15.54mm Hg,149.87±14.84mm Hg and 147.85±12.67mm Hg,which were no significant difference with that of supine position,P0.05.The mean diastolic pressure of supine position was 87.81±6.92mm Hg,that of left lateral position was 70.83±8.32mm Hg.There was significant difference in the two groups,P0.01.The mean diastolic pressure of right lateral position,sitting position and standing position was separately 88.33±11.52mm Hg,88.81±9.15mm Hg and 87.25±11.15mm Hg,which were no significant difference with that of supine position,P0.05.Conclusion There was no significant difference between supine position and right lateral position,sitting position or standing position in ambulatory blood pressure monitoring of different positions.The mean systolic pressure and diastolie pressure of left lateral position were lower than those of supine.