View clinical trials related to Cardiopulmonary Bypass.
Filter by:The protective nitric oxide (NO) effects are mediated by selective pulmonary vasodilation and improvement of arterial oxygenation in hypoxemic patients by reducing intrapulmonary shunting and improving ventilation-perfusion coordination. Inhaled NO has been used for years to treat acute respiratory failure and pulmonary hypertension in anesthesia and intensive care. The nephroprotective role of NO was studied in an experimental model of contrast-induced nephropathy. The primary aim of this prospective, double-blind, randomized, parallel-group, controlled trial is to test the hypothesis that perioperative conditioning of patients with NO at a dose of 80 ppm, obtained by plasma-chemical synthesis technology, through a ventilator and an extracorporeal circulation circuit reduces the incidence of acute kidney injury (AKI) in patients with an initially high risk of kidney damage due to the presence of preoperative chronic kidney disease (CKD). The study is interventional. Examination and treatment of patients is carried out in accordance with the approved standards of medical care for the relevant diseases. During the study, no experimental or unregistered (not approved for use) medical or diagnostic procedures in the territory of the Russian Federation will be carried out. The study includes patients admitted to the Cardiac Surgery Department of Cardiology Research Institute of Tomsk NRMC for elective surgery with high risk of AKI in the perioperative period
This study aims to describe chest wall mechanics during delayed sternal closure (DSC) in neonates following cardiopulmonary bypass or palliation of congenital heart diseases.
This is a randomized, double-blind, controlled trial design. It was conducted with a main purpose of evaluating the effect of thiamine supplementation on serum lactate and lactate-pyruvate ratio after surgery as direct indicators of tissue perfusion and indirect markers of energy substrate availability for effective mitochondrial function and intubation time as clinical outcome.
This clinical trial is studying the use of different levels of oxygen exposure during and after cardiopulmonary bypass in eligible infants to learn about its safety during heart surgery. In addition to having the various doses of oxygen, patients that participate will also have blood samples, ultrasounds of the head, and brain wave patterns monitored. The hypotheses of this trial are: - that there will be no difference with regards to adverse events between the infants in the normoxia group compared to the infants in the standard of care group - there will be a significant difference in the measured partial pressure of oxygen (PaO2) values between the two treatment groups. - the use of normoxia during cardiopulmonary bypass and in the immediate post-operative period will result in clinically significant decrease in oxidative stress as measured by thiobarbituric acid reactive substances (TBARS) after cardiac surgery
During surgery high concentrations of supplementary oxygen are routinely administrated. However, there is increasing evidence of potential harm with liberal oxygen therapy. The hypothesis of the present study is that oxygen therapy adjusted to a normal arterial oxygen target is feasible and will attenuate the side effects of supplementary oxygen therapy. The study design is a before-and-after study in which 25 patients will follow the standard regime with high concentrations of oxygen therapy and 25 patients will be treated with oxygen to achieve a normal value of arterial oxygenation.
Delirium is an acutely occurred and fluctuating cerebral dysfunction characterized with inattention, altered consciousness, cognitive decline and/or abnormal perception. It is common in the elderly after cardiac surgery and is associated with worse outcomes. Causes leading to delirium are multifactorial but sleep disturbances remains an important one. In previous studies, sedative-dose dexmedetomidine improves sleep quality in ICU patients with mechanical ventilation; and low-dose dexmedetomidine improves sleep quality in postoperative patients without mechanical ventilation. In recent studies of elderly after noncardiac surgery, night-time infusion of low-dose dexmedetomidine reduces delirium and improves 2-year survival. The investigators hypothesize that, for elderly patients after cardiac surgery, night-time infusion of dexmedetomidine may also improve sleep quality, reduce delirium development and improve 2-year survival.
The study objective is to verify if a non-invasive remote ischemic preconditioning procedure (blood pressure cuff on the arm) is cardioprotective when applied before an aortic valve replacement surgery.
The purpose of this study is to investigate the frequency and grade of gastrointestinal dysfunction in patients after thoracic cardiovascular surgery, and to search for biomarkers of gastrointestinal dysfunction. All adult patients undergoing elective cardiac surgery requiring cardiopulmonary bypass at Örebro University Hospital, Örebro, Sweden, are asked for participation in this study. All participating patients sign informed consent at the inclusion. The first three postoperative days the function of the gastrointestinal tract is scored according to a rating scale (grade 0-4), along with other clinical parameters. Plasma blood samples are collected from each patient preoperatively and the first three postoperative days. The plasma samples are stored in a biobank for later determination of plasma proteins. In the analysis, the patients are divided according to the gastrointestinal rating scale and the plasma protein expression, gastrointestinal complications and all-cause mortality are compared between the groups.
The purpose of this study is to evaluate the effects of modified glucose - insulin - potassium (GIK) therapy in cardiac surgery patients undergoing cardiopulmonary bypass (CPB).
SIRS trial is a large simple study in which high-risk patients undergoing cardiac surgery requiring the use of cardiopulmonary bypass (CPB) are randomly allocated to receive a pulse dose of Methylprednisolone or a matching placebo. Cardiopulmonary bypass initiates a systemic inflammatory response that facilitates development of post-operative complications. SIRS will confirm or deny the potential clinical benefits of suppressing this response through the use of systemic steroids. Specifically, does 250 mg of intravenous Methylprednisolone given twice, once on anesthetic induction and again on CPB initiation, result in improved early survival and less myocardial infarction in high-risk cardiac surgery patients requiring CPB?