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Advances in understanding the effects of cardiopulmonary bypass on gut microbiota during cardiac surgery.

Int J Artif Organs

January 2025

Department of Cardiac surgery, The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou, China.

Cardiopulmonary bypass (CPB) is an indispensable technique in cardiac surgery; however, its impact on gut microbiota and metabolites remains insufficiently studied. CPB may disrupt the intestinal mucosal barrier, altering the composition and function of gut microbiota, thereby triggering local immune responses and systemic inflammation, which may lead to postoperative complications. This narrative review examines relevant literature from PubMed, Web of Science, Google Scholar, and CNKI databases over the past decade.

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Objectives: The objective of this study is to evaluate preoperative factors associated with cardiopulmonary bypass (CPB) utilization and outcomes for patients with renal cell carcinoma (RCC) and tumour thrombus (TT). Radical nephrectomy with thrombectomy is a standard treatment for patients with RCC and associated TT. Morbidity and mortality rates tend to correlate with aggressiveness of tumour and TT level.

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Objective: We aimed to explore the application value of unsupervised machine learning in identifying acute gastrointestinal injury (AGI) after extracorporeal circulation for acute type A aortic dissection (ATAAD).

Methods: Patients who underwent extracorporeal circulation for ATAAD at the First Hospital of Lanzhou University from January 2016 to January 2021 were included. Unsupervised machine learning algorithm was used to stratify patients into different phenogroups according to the similarity of their clinical features and laboratory test results.

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Background: A partial atrioventricular septal defect (AVSD) with a hypoplastic left ventricle and common atrium is a rare combination of cardiac anomalies that can be associated with Ellis-van Creveld (EVC) syndrome.

Case Summary: A female neonate with EVC syndrome was diagnosed with an unbalanced AVSD and hypoplastic left ventricle. Pulmonary artery banding and ductus ligation were performed at 23 days after birth.

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Relationship between intraoperative blood pressure variability and postoperative acute kidney injury in pediatric cardiac surgery.

Pediatr Nephrol

January 2025

Department of Anesthesiology, West China Hospital, Sichuan University, No. 37 Guoxue Lane, Wuhou District, Chengdu, 610000, Sichuan, China.

Background: Cardiac surgery-associated acute kidney injury (CSA-AKI) is a notably common complication in pediatrics, with an incidence rate ranging from 15 to 64%. This rate is significantly higher than that observed in adults. Currently, there is a lack of substantial evidence regarding the association between intraoperative blood pressure variability (BPV) during cardiac surgery with cardiopulmonary bypass (CPB) and the development of AKI in pediatric patients.

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