Moore, MN and Schultz, MG and Nelson, MR and Black, JA and Dwyer, NB and Hoban, E and Jose, MD and Kosmala, W and Przewlocka-Kosmala, M and Zachwyc, J and Otahal, P and Picone, DS and Roberts-Thomson, P and Veloudi, P and Sharman, JE, Identification of the optimal protocol for automated office blood pressure measurement among patients with treated hypertension, American Journal of Hypertension, 31, (3) pp. 299-304. ISSN 0895-7061 (2018) [Refereed Article]
© American Journal of Hypertension, Ltd 2017. All rights reserved.
Methods: One hundred and eighty-nine patients (mean age 62.8 ± 12.1 years; 50.3% female) with treated hypertension referred to specialist clinics at 2 sites underwent AOBP in a quiet room alone. Eight BP measurements were taken starting immediately after sitting and then at 2-minute intervals (15 minutes total). The optimal AOBP protocol was defined by the smallest mean difference and highest intraclass correlation coefficient (ICC) compared with daytime ambulatory BP (ABP). The same BP device (Mobil-o-graph, IEM) was used for both AOBP and daytime ABP.
Results: Average 15-minute AOBP and daytime ABP were 134 ± 22/82 ± 13 and 137 ± 17/83 ± 11 mm Hg, respectively. The optimal AOBP protocol was derived within a total duration of 6 minutes from the average of 2 measures started after 2 and 4 minutes of seated rest (systolic BP: mean difference (95% confidence interval) 0.004(-2.21, 2.21) mm Hg, P = 1.0; ICC = 0.81; diastolic BP: mean difference 0.37(-0.90, 1.63) mm Hg, P = 0.57; ICC = 0.86). AOBP measures taken after 8 minutes tended to underestimate daytime ABP (whether as a single BP or the average of more than 1 BP reading).
Conclusions: Only 2 AOBP readings taken over 6 minutes (excluding an initial reading immediately after sitting) may be needed to be comparable with daytime ABP.
|Item Type:||Refereed Article|
|Keywords:||blood pressure, blood pressure monitoring, clinical decision making, diagnostic errors, hypertension|
|Research Division:||Medical and Health Sciences|
|Research Group:||Cardiorespiratory Medicine and Haematology|
|Research Field:||Cardiology (incl. Cardiovascular Diseases)|
|Objective Group:||Clinical Health (Organs, Diseases and Abnormal Conditions)|
|Objective Field:||Cardiovascular System and Diseases|
|UTAS Author:||Moore, MN (Mr Myles Moore)|
|UTAS Author:||Schultz, MG (Dr Martin Schultz)|
|UTAS Author:||Nelson, MR (Professor Mark Nelson)|
|UTAS Author:||Black, JA (Professor John Black)|
|UTAS Author:||Dwyer, NB (Dr Nathan Dwyer)|
|UTAS Author:||Hoban, E (Ms Ella Hoban)|
|UTAS Author:||Jose, MD (Professor Matthew Jose)|
|UTAS Author:||Kosmala, W (Professor Wojciech Kosmala)|
|UTAS Author:||Otahal, P (Mr Petr Otahal)|
|UTAS Author:||Picone, DS (Mr Dean Picone)|
|UTAS Author:||Roberts-Thomson, P (Dr Philip Roberts-Thomson)|
|UTAS Author:||Veloudi, P (Mrs Penny Veloudi)|
|UTAS Author:||Sharman, JE (Professor James Sharman)|
|Year Published:||2018 (online first 2017)|
|Web of Science® Times Cited:||7|
|Deposited By:||Menzies Institute for Medical Research|
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