Brachial or wrist blood pressure in obese patients: which is the best?

Blood Press Monit. 2008 Jun;13(3):149-51. doi: 10.1097/MBP.0b013e3282fd16e3.

Abstract

Objective: Blood pressure (BP) measured in obese patients with a large arm circumference using a cuff of standard width may be overestimated.

Methods: We compared in this study the BP readings obtained with oscillometric devices at the left arm (OMRON HEM 705-CP) and the left wrist (OMRON R6) (Omron Medizintechnik, Mannheim, Germany) in lean (n=15) and obese (n=11) patients.

Results: No difference was found in diastolic BP between the two groups, nor between the arm and the wrist. Systolic BP measured at the arm was, however, significantly lower in obese (99+/-9 mmHg, mean+/-SD) than in lean (107+/-14 mmHg; P<0.001) patients, whereas systolic BP determined at the wrist averaged 106 mmHg in both groups.

Conclusion: The use of validated wrist BP measuring devices appears therefore particularly appealing in obese individuals with a large arm circumference.

Publication types

  • Comparative Study
  • Evaluation Study

MeSH terms

  • Adult
  • Blood Pressure Determination / instrumentation*
  • Blood Pressure Determination / methods*
  • Brachial Artery / physiology
  • Case-Control Studies
  • Female
  • Humans
  • Male
  • Middle Aged
  • Obesity*
  • Sphygmomanometers*
  • Wrist