Blood pressure changes in residents with and without a night on call at emergency room: a cross-sectional study / Alterações da pressão arterial em residentes com e sem plantão noturno em serviço de emergência: um estudo transversal

Resumo

Background: Increased blood pressure has been associated with night work; however, this trend has not been extensively explored in residents. Objective: The aim of this study was to compare ambulatory blood pressure monitoring (ABPM) data from first-year internal medicine residents over 24h periods that included a 12h night duty shift in the emergency room and another workday not involving night duty. Methods: A cross-sectional study was performed involving 38 residents with a mean age of 25.4 years. The ABPM was carried out using an oscillometric method (Spacelbs TM monitor) over 24h, and data was collected from each resident during a night call shift (Stage1) and during an off-duty night (Stage2). Results: The means values of systolic and diastolic blood pressure were significant difference during daytime (118 v 115 mmHg, p < 0,001; 75 v 71 mmHg, p=0.01) and nighttime (116 v 108 mmHg, p < 0,001; 74 v 64 mmHg, p < 0,001) in Stage 1 than Stage 2. Only at stage 2 there was difference between daytime and nighttime at blood pressure systolic (115 v 108 mmHg, p < 0,001) and diastolic (71 v 64 mmHg, p < 0,001). 76% of the residents did not presented nocturnal BP fall at Stage 1. Conclusions: The blood pressure behavior in residents during a 24h work shift suggesting that may be related to occupational stress.

Keywords: Clinical clerkship; Internship and residency; Education, medical; Night work; Blood pressure; Hypertension