Blood pressure variability analysis in patients with sustained and masked hypertension and white coat hypertension / 心血管康复医学杂志

ABSTRACT

Objective:To explore blood pressure variability (BPV)characteristics in patients with sustained,masked hypertension (MH)and white coat hypertension (WCH).Methods:A total of 527 cases undergoing physical exami-nation in our hospital from Dec 2010 to Dec 2012 were treated as subjects.According to characteristics of blood pressure (BP),they were divided into sustained hypertension group (SH group,n= 143),MH group (n= 93), WCH group (n=86)and normal control group (NC group,n=205).CV (coefficient of variation)=BPV/mean BP.Results:BP-CV of MH group and SH group were significantly higher than that of NC group [24h systolic blood pressure (SBP)-CV (27.73±5.36)% vs.(29.83±5.95)% vs.(17.93±4.85)%,24h diastolic blood pressure (DBP)-CV (23.02±4.63)% vs.(22.69 ± 4.63)% vs.(14.32 ± 4.21)%,daytime (d)SBP-CV (25.12 ± 4.79)% vs.(25.98±4.73)% vs.(14.97±4.29)%,dDBP-CV(21.03±4.59)% vs.(20.92±4.53)% vs.(11.79 ±4.43)%,nighttime (n)SBP-CV (21.52±4.93)% vs.(22.37±4.98)% vs.(11.57±4.19)%,nDBP-CV(18.79±4.83)% vs.(20.09 ± 5.19)% vs.(6.98 ± 3.69)%],P 0.05).Conclusion:Blood pressure variability significantly rises in patients with sustained and masked hypertension,which may be one of main causes for severe target organ damage in these patients.