Key result
Mean coronary vascular resistance increased significantly from 1.57 mmHg/ml/min during cardioplegia to 1.75 mmHg/ml/min in the working heart after coronary bypass surgery.
Population
59 patients (178 vein grafts) undergoing coronary bypass surgery
Design
Cohort
Follow-up
intraoperative
Authors
Loading...
May signal perfusion vulnerability in small coronary vessels post-bypass; leaves open whether resistance-guided strategies improve outcomes.
Observational (n=59)
Absolute Event Rate: 1.75% vs 1.57%
Intraoperative measurement of coronary vascular resistance reveals that small vessels have higher resistance and lower flows, identifying coronary beds at potential high risk for inadequate perfusion during bypass surgery.
Göran Rådberg Ali Belboul (1999) conducted an observational in Coronary bypass surgery (n=59). Working heart (post-cardiopulmonary bypass) vs. Cardioplegic arrested heart was evaluated on Mean coronary vascular resistance (CVR) in mmHg/ml/min. Mean coronary vascular resistance increased significantly from 1.57 mmHg/ml/min during cardioplegia to 1.75 mmHg/ml/min in the working heart after coronary bypass surgery.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: