Mean arterial pressure differences between cuff oscillometric and invasive blood pressure

Abstract

Differences between automated cuff oscillometric blood pressure (BP) and invasive measurements are well described, but the causes are not fully understood. Automated BP devices record cuff oscillometric mean arterial pressure (MAP) as a key measurement step that is presumed to be accurate, but if not, could create error in cuff systolic (SBP) and diastolic BP (DBP) estimations. This has never been determined and was the aim of the study. Data from five studies with similar protocols were analysed (N = 262 patients undergoing coronary angiography, 61 ± 11 years, 65% male). Cuff oscillometric MAP was measured using five different models of automated cuff BP devices simultaneous to invasively m..