Observational studyAnnals of medicine2026
TEB vs. Swan-Ganz catheter: hemodynamic monitoring agreement in off-pump coronary artery bypass grafting.
Observational study in Annals of medicine, 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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5 authors.
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Abstract
objectiveTo compare the agreement of hemodynamic parameters measured by Swan-Ganz catheter and thoracic electrical bioimpedance (TEB) in patients with coronary heart disease (CHD) undergoing coronary artery bypass grafting (CABG), and to evaluate the clinical application value of TEB in perioperative hemodynamic monitoring.
methodsA total of 42 CHD patients who underwent off-pump coronary artery bypass grafting (OPCABG) in the Department of Cardiac Surgery, Binzhou Medical University Hospital, from August 2021 to March 2022 were enrolled in this prospective observational study. All patients received continuous hemodynamic monitoring using both TEB and Swan-Ganz catheter throughout the surgical procedure, with simultaneous data collection. Cardiac output (CO), Stroke volume (SV), stroke volume index (SI), and end-diastolic volume (EDV) were recorded at two key time points (before thoracotomy and after chest closure) for statistical analysis.
resultsBland-Altman corrected for repeated measurements revealed mean bias of -0.30 L/min (CO), -9.10 mL (SV), -5.10 mL/m
conclusionTEB serves as a reliable, non-invasive tool for real-time continuous trend monitoring of CO, SV, SI, and EDV in critically ill surgical patients, especially those for whom invasive monitoring is contraindicated. This study supports the clinical application of TEB as an alternative or supplementary method for perioperative hemodynamic assessment in OPCABG patients.
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