title: Cuff inflations do not affect night-time blood pressure: comparison of 24 h ambulatory blood pressure measured by a cuff and a tonometric device in type 2 diabetes.
abstract: Discomfort related to cuff inflation may bias 24 h ambulatory blood pressure (BP) measurements, especially during night-time. We accessed the impact of cuff inflations by comparing 24 h BP recorded with a cuff-less tonometric wrist device and an upper-arm oscillometric cuff device. Fifty-three participants with type 2 diabetes were assigned randomly to four 24-h BP recordings with a cuff (TM2430: visit 1 or 2, and 4) and a tonometric device (BPro: visit 1 or 2, 3, and 4). The mean 24 h systolic BP was significantly higher when measured with the cuff versus the tonometric device (141.6±14.6 vs. 128.3±14.6 mmHg, P≤0.01), as was nocturnal BP (6.7±5.3 vs. 10.3±7.6%, P=0.002). In conclusion, nocturnal BP decline was higher when measured with the cuff device, suggesting that cuff inflations did not increase night-time BP. Further evaluation of the tonometric device using the updated European Society of Hypertension International Protocol revision 2010 is recommended before applying it in daily clinical practice.
authors.affiliation: aSteno Diabetes Center, Department of Complications Research, Gentofte bDepartment of Health, Aarhus University, Aarhus cThe Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark.
authors.forename: Emilie H
authors.initials: EH
authors.lastname: Petersen
authors.forename: Simone
authors.initials: S
authors.lastname: Theilade
authors.forename: Tine W
authors.initials: TW
authors.lastname: Hansen
authors.forename: Morten K
authors.initials: MK
authors.lastname: Lindhardt
authors.forename: Peter
authors.initials: P
authors.lastname: Rossing
mesh_terms: D000368:Aged; D001794:Blood Pressure; D018660:Blood Pressure Monitoring, Ambulatory / Q000295:instrumentation*; D003924:Diabetes Mellitus, Type 2 / Q000150:complications / Q000503:physiopathology*; D005260:Female; D006801:Humans; D006973:Hypertension / Q000150:complications / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D009991:Oscillometry / Q000295:instrumentation*; D015203:Reproducibility of Results