blood pressure cuff
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Introduction
Device to measure blood pressure.
Clinical significance
- appropriate cuff size is determined by measuring arm circumference at the midpoint between the acromion & olecranon[4]
- small cuff: 20-25 cm
- regular cuff: 25.1-32 cm (9-13 inches)
- large cuff: 32.1-40 cm (13-17 inches)
- extra-large cuff: 40.1-55 cm[4]
- effects of inappropriate cuff size:
- small cuff appropriate, regular cuff used: mean systolic BP 4 mm Hg too low
- large cuff appropriate, regular cuff used: mean systolic BP 5 mm Hg too high
- extra-large cuff appropriate, regular cuff used: mean systolic BP 20 mm Hg too hig
- cuff 1 size too large: underestimates systolic BP by ~4 mm Hg
- cuff 2 sizes too large: underestimates systolic BP ~9 mm Hg.
- cuff 1size too small: overestimates systolic BP ~4 mm Hg.
- cuff 2 sizes too small: overestimates systolic BP ~20 mm Hg[4]
Notes
- automated inflating cuffs with digital monitor easier to use
- blood pressure measurement devices validated for clinical accuracy[2]
- many devices do not meet international standards[3]
More general terms
Additional terms
References
- ↑ Home Blood Pressure Monitors Prescriber's Letter 11(2):11 2004 Detail-Document#: http://prescribersletter.com/(5bhgn1a4ni4cyp2tvybwfh55)/pl/ArticleDD.aspx?li=1&st=1&cs=&s=PRL&pt=3&fpt=25&dd=200212&pb=PRL (subscription needed) http://www.prescribersletter.com
- ↑ 2.0 2.1 US Blood Pressure Validated Device Listing https://www.validatebp.org
- ↑ 3.0 3.1 Lou N Non-Validated BP Monitors Are a Global Problem. Thousands of device models don't meet international standards. MedPage Today February 15, 2022 https://www.medpagetoday.com/primarycare/preventivecare/97197
- ↑ 4.0 4.1 4.2 4.3 Ishigami J et al. Effects of cuff size on the accuracy of blood pressure readings: The Cuff(SZ) randomized crossover trial. JAMA Intern Med 2023 Aug 7; [e-pub]. PMID: https://www.ncbi.nlm.nih.gov/pubmed/37548984 https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/2807853