ArticleBMJ open2026
Cardiac cost of occupational stress among obstetricians: a cross-sectional non-invasive haemodynamic study in a tertiary hospital.
Article in BMJ open, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectivesTo identify early cardiovascular changes in normotensive obstetricians, a high-stress group, using non-invasive haemodynamic monitoring, and to examine the association between burnout and haemodynamic parameters.
designCross-sectional study.
settingA single tertiary hospital in China.
participantsA total of 120 healthy Han Chinese adults (aged 25-45 years, both sexes) were enrolled using stratified random sampling by age and categorised into three groups: obstetricians, clinical support staff and administrative personnel. Of these, 105 (87.5%) completed the study and entered the final analysis (obstetricians n=40; clinical support staff n=33; administrative personnel n=32); 15 were excluded due to incomplete questionnaire data. Key exclusion criteria were chronic medical conditions, medication use, acute illness, a clinical shift within 24 hours before measurement, pregnancy or lactation, body mass index extremes (≤18.5 or ≥ 28 kg/m PRIMARY AND SECONDARY OUTCOME MEASURES: Advanced haemodynamics were assessed via Ultrasonic Cardiac Output Monitor. The primary outcome was cardiac power output (CPO). Secondary outcomes included other non-invasive haemodynamic parameters, such as cardiac index (CI), systemic vascular resistance index, Smith-Madigan inotropy index and corrected flow time.
resultsSevere burnout was associated with reduced CPO and CI (-0.152 W and -0.403 L/min/m
conclusionsIn high-stress populations, advanced haemodynamic patterns may serve as an early-warning biomarker for burnout, guiding personalised exercise advice. Longitudinal studies are needed to confirm their predictive value.
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