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Microvascular dysfunction in patients with diabetes after cardioplegic arrest and cardiopulmonary bypass
1Division of Cardiothoracic Surgery, Department of Surgery, Cardiovascular Research Center, Rhode Island Hospital, Alpert Medical School of Brown University, Rhode Island Hospital, Rhode Island, USA *Both the authors contributed equally to the writing of this article.
Insights
This review details microvascular function changes in diabetic patients undergoing cardiac surgery with cardioplegia and cardiopulmonary bypass (CPB). Understanding these diabetes-related alterations can improve patient outcomes post-surgery.
Area of Science:
- Cardiovascular Medicine
- Diabetology
- Vascular Biology
Background:
- Cardiac surgery involving cardioplegia and cardiopulmonary bypass (CPB) significantly impacts microvascular function.
- Patients with diabetes, particularly those with poor glycemic control, exhibit more profound microvascular alterations.
- These changes contribute to increased morbidity and mortality following cardiac procedures.
Purpose of the Study:
- To review and describe the specific changes in microvascular function observed in diabetic patients after cardioplegia/CPB and cardiac surgery.
- To highlight the critical role of microvascular dysfunction in the outcomes of these patients.
- To emphasize the need for a deeper understanding of diabetes-related microvascular regulation.
Main Methods:
- Literature review focusing on studies examining microvascular function.
- Analysis of research on vascular reactivity, permeability, gene/protein expression, and apoptosis.
- Synthesis of findings related to diabetic patients undergoing cardiac surgery with cardioplegia/CPB.
Main Results:
- Cardiac surgery with cardioplegia/CPB induces significant changes in coronary and peripheral microcirculation.
- Diabetic patients experience exacerbated alterations in vascular reactivity, permeability, and cell death pathways.
- Impaired vasomotor regulation is a key factor in the heightened risks faced by diabetic patients.
Conclusions:
- Understanding the specific microvascular dysfunctions in diabetes is crucial for improving surgical outcomes.
- Targeting diabetes-related microvascular alterations may reduce morbidity and mortality post-cardiac surgery.
- Further research into diabetic microvascular regulation can inform better perioperative management strategies.
Purpose Of Review:
The purpose of the current review is to describe the changes of microvascular function in patients with diabetes after cardioplegic arrest and cardiopulmonary bypass (CPB) and cardiac surgery.
Recent Findings:
Cardiac surgery, especially that involving cardioplegia and CPB, is associated with significant changes in vascular reactivity of coronary/peripheral microcirculation, vascular permeability, gene/protein expression, and programmed cell death, as well as with increased morbidity and mortality after surgical procedures. In particular, these changes are more profound in patients with poorly controlled diabetes.
Summary:
Because alterations in vasomotor regulation are critical aspects of mortality and morbidity of cardioplegia/CPB, a better understanding of diabetic regulation of microvascular function may lead to improved postoperative outcomes of patients with diabetes after cardioplegia/CPB and cardiac surgery.
