Predictive Preoperative Score of Prolonged Mechanical Ventilation After Coronary Artery Bypass Grafting

August 30, 2026 No Comments

A study of 2,083 patients undergoing CABG found that 11.6% required prolonged mechanical ventilation for more than 48 hours. Researchers developed a simple preoperative risk score using readily available clinical factors, with risk ranging from 2.9% in the lowest-risk group to 44.3% in the highest. Anemia, severe kidney and ventricular dysfunction, urgent surgery, and other factors predicted increased risk, while risk also rose as cardiopulmonary bypass exceeded about 120 minutes.

Thrombotic Mitral Valve Obstruction During Venoarterial Extracorporeal Membrane Oxygenation With Left Ventricular Venting Following Complex Valve Surgery

April 14, 2026 No Comments

This case report describes a 69-year-old woman who developed thrombotic obstruction of a mitral bioprosthesis while receiving VA-ECMO with left ventricular venting after complex multivalve surgery. Delayed anticoagulation, prosthetic material, altered intracardiac flow, and postoperative bleeding likely combined to trigger thrombosis. The report highlights diagnostic difficulty during ECMO weaning and stresses individualized anticoagulation, echocardiographic monitoring, and careful unloading strategy selection.

Sevoflurane Delivery During Cardiopulmonary Bypass

Estimated End-Tidal Sevoflurane Concentration to Maintain Optimal Anesthetic Depth During Cardiopulmonary Bypass: A Meta-Analysis

March 29, 2026 No Comments

This meta-analysis examined how much end-tidal sevoflurane is needed to maintain appropriate anesthetic depth during cardiopulmonary bypass. Across five prospective studies involving 129 adults, the pooled estimate was 0.88 vol% for a BIS target of 40–60. Older patients required less sevoflurane, while body temperature did not significantly change dosing needs. The findings offer a practical reference point, although evidence certainty remained limited by heterogeneity and small study sizes.

Advanced Monitoring During Ventilator Weaning After Cardiac Surgery

Weaning From Mechanical Ventilation in Cardiac Surgery Patients: Current Strategies, Monitoring Innovations, and Future Perspectives

March 16, 2026 No Comments

This review examines the complex process of liberating cardiac surgery patients from mechanical ventilation. It highlights how cardiopulmonary interactions, surgical factors, sedation, and respiratory muscle dysfunction influence weaning outcomes. The authors discuss predictors of failure, monitoring innovations such as diaphragm ultrasound and electrical impedance tomography, and strategies like spontaneous breathing trials and personalized protocols to improve extubation success and long-term recovery.

Evaluation of Postoperative Delirium in Cardiac Surgery Patients With the SDACS Screening Tool: A Multicenter-Multiphase Study

April 6, 2025 No Comments

This study developed and validated the SDACS screening tool to predict postoperative delirium in cardiac surgery patients. Conducted across three academic hospitals with 920 participants, it identified four key predictors: chronic opioid use, hearing impairment, benzodiazepine history, and poor postoperative sleep. The tool demonstrated strong predictive power (AUC = 0.897), offering clinicians a practical instrument to guide early interventions.

Machine Learning for In-hospital Mortality Prediction in Critically Ill Patients With Acute Heart Failure: A Retrospective Analysis Based on the MIMIC-IV Database

April 3, 2025 No Comments

This study developed machine learning (ML) models to predict in-hospital mortality among ICU patients with acute heart failure (AHF) using data from the MIMIC-IV database. Among five tested algorithms, XGBoost showed the highest predictive accuracy (AUC: 0.82) and outperformed traditional clinical scoring systems. The model incorporated 18 clinical variables from the first 24 hours of ICU admission to aid early intervention strategies.

A Review of Recent Advances in Anesthetic Drugs for Patients Undergoing Cardiac Surgery

March 8, 2025 No Comments

This review explores recent advancements in anesthetic drugs for cardiac surgery. With no standard protocol for anesthesia in these procedures, the article examines commonly used agents such as opioids (fentanyl, sufentanil, remifentanil), volatile anesthetics, and novel drugs like dexmedetomidine and remimazolam. The study highlights opioid-free anesthesia approaches, innovative drug delivery systems, and enhanced recovery techniques to improve patient outcomes and reduce complications.

The Incidence, Risk Factors, and Hospital Mortality of Prolonged Mechanical Ventilation Among Cardiac Surgery Patients: A Systematic Review and Meta-Analysis

December 20, 2024 No Comments

This systematic review analyzes prolonged mechanical ventilation (PMV) post-cardiac surgery, finding an incidence rate of 20%. PMV, defined as ventilation lasting ≥24 hours, is linked to in-hospital mortality (odds ratio: 14.13). Key risk factors include advanced age, female sex, ejection fraction <50%, and body mass index >28 kg/m². PMV also correlates with conditions like chronic renal failure and prolonged cardiopulmonary bypass time. These insights highlight the need for targeted prevention and management strategies.

Anesthesia for Minimally Invasive Cardiac Surgery: The Bonn Heart Center Protocol

July 17, 2024 No Comments

This article outlines the anesthetic management protocol for minimally invasive cardiac surgery (MICS) at the Bonn Heart Center. It covers preoperative assessment, tailored anesthesia induction, and intraoperative techniques designed to maintain hemodynamic stability and ensure optimal ventilation. Advanced monitoring methods, including transesophageal echocardiography (TEE), processed EEG, and near-infrared spectroscopy (NIRS), are utilized to optimize patient safety. The article emphasizes the importance of peripheral cannulation techniques for cardiopulmonary bypass (CPB) and discusses the necessity of a multidisciplinary approach to perioperative care to enhance recovery and patient outcomes.