Naslov
Deep breathing : A simple test for white coat effect detection in primary care

Autori
Tomičić, Marion ; Petric, Dragomir ; Rumboldt, Mirjana ; Carević, Vedran ; Rumboldt, Zvonko

Izvornik
Blood pressure (0803-7051) 24 (2015), 3; 158-163

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Ambulatory blood pressure monitoring; deep breath test; white coat hypertension

Sažetak
White coat hypertension (WCH) is hard to differentiate from sustained hypertension without the use of 24-h ambulatory blood pressure monitoring (ABPM). This invaluable procedure is nevertheless cumbersome and expensive. A simple test of deep breathing over 30 s (DBT) was proposed as a method to unveil WCH. METHODS: Two hundred and fourteen outpatients referred for the evaluation of uncontrolled hypertension (blood pressure, BP > 140/90 mmHg despite therapy) were enrolled in a controlled clinical trial. The examinees were randomly divided in two groups: control (n = 108 ; sequential standard BP measurement only) and intervention (n = 106 ; the same+DBT), using ABPM as the reference standard. RESULTS: The relative decrease in BP was significantly larger in the intervention group than in the control group, by 15/4 mmHg (p = 0.005). The best detection of WCH was obtained at ≥ 15% systolic BP reduction following DBT, with a positive predictive value of 94.0% (95% CI 72.0-100.0). BP reduction of ≤ 8% may rule WCH out with a negative predictive value of 78.4% (95% CI 64.0 - 85.9). CONCLUSION: DBT is a reliable, inexpensive and fast test for the detection of WCH in primary care.

Izvorni jezik
Engleski

Znanstvena područja
Kliničke medicinske znanosti, Javno zdravstvo i zdravstvena zaštita

POVEZANOST RADA