View clinical trials related to Cardiopulmonary Bypass.
Filter by:During a cardiac surgery under cardiopulmonary bypass it is essential that an appropriate level of anticoagulation is accomplished. To achieve this, the patient is administered heparin. After completion of the surgery, protamine is given to reverse the anticoagulant action of heparin. In this prospective clinical study the researchers will investigate the impact of the two different methods to calculate the required dosage of heparin and protamine; the individualized calculation computed by the Hemostasis Management System Plus (HMS Plus, Medtronic, Minneapolis, MN) device and the weight based. The investigators hypothesize that the aforementioned methods result in different dosages and will elaborate on their impact on postoperative bleeding.
The aim of this study was to investigate the impact of serum values of procalcitonin (PCT), C-reactive protein (CRP) and lactate to predict postoperative complications in the early postoperative period after open-heart surgery with cardiopulmonary bypass (CPB).
AUDICS-ICU is a prospective observational aiming to evaluate the prevalence of auditive dysfunction following cardiac surgery. Participants will undergo audiometric testings before and 3 months after cardiac surgery with cardiopulmonary bypass. Furthermore, the study evaluates hearing loss-associated ICU-acquired delirium after cardiac surgery with cardiopulmonary bypass.
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.
During open cardiac surgery, cardiopulmonary bypass (CPB) is used to temporarily replace the function of the heart and lungs. Renal ischemia resulting in acute kidney injury is common after cardiac surgery. The renal oxygenation is impaired during CPB, but the oxygenation may be improved by increasing the CPB blood flow. In this randomized study, two CPB flow rates will be compared regarding renal outcome (biomarkers and renal oxygenation/renal blood flow), as well as markers of inflammation and hemolysis. Additionally, urine oxygen tension will be measured during CPB and the early intensive care phase and compared to renal oxygenation. Regional oxygen saturation assessed with near infrared spectroscopy from the brain and kidneys will be monitored during and after surgery.
Age is no longer an absolute contraindication to cardiac surgery therefore there is often need for combined interventions (double valve repair/replacement, or coronary artery bypass graft and valve repair/replacement) with relative prolongation of cardiopulmonary bypass time. Prolonged cardiopulmonary bypass use causes an increase in the inflammatory response, and on the other a need for blood reinfusion and therefore lipid microemboli from the operative field. The clinical consequences for patients are post-operative delirium and post-operative cognitive impairment. These two neurological complications involve up to 45% of elderly patients undergoing cardiac surgery and have a significant impact on quality of life, hospitalization and mortality in the short and long term. The Remowell 2 oxygenator system has demonstrated in preliminary studies that, compared to the gold standard Inspire oxygenator, it can guarantee a significant reduction of hemodilution, inflammatory systemic response and embolization of lipid microemboli and leukocytes. In light of these considerations, it is possible to formulate the hypothesis that the use of the Remowell 2 device can contribute to significantly reducing the onset of post-operative delirium and cognitive impairment. The present study is designed to validate this hypothesis in a randomized controlled scenario.
The role of circulating tumor cells (CTC) in patients suffering from lung cancer and thoracic malignancies is not well known and it is still widely debated. The use of intraoperative cardiorespiratory supports like ECMO (extracorporeal membrane oxygenator) and CPB (cardiopulmonary by-pass) during extended resections in oncologic patients has been questioned because of the theoretical risk of tumor cells spreading, although there is no clinical or experimental evidence supporting this hypothesis. The aim of the present study is to quantify the possible presence and amount of CTC in the peripheral blood of patients undergoing lung/mediastinal resection, before and after surgical procedure, comparing patients receiving intraoperative cardiorespiratory support with patients - with similar oncologic disease and extension - operated without the need of ECMO or CPB.
Using metagenomics as well as metabolomics, the variation of the gut microbiota and host metabolite profiles of patient after undergoing CPB were explored.
This study is a single-center, randomized, controlled, double-blind clinical trial. The main purpose of this study is to evaluate if hemoperfusion is sufficient to improve the prognosis of acute type A aortic dissection patients undergoing cardiopulmonary bypass and deep hypothermia circulatory arrest.
Tissue hypoperfusion during cardiopulmonary bypass (CPB) affects cardiac surgical outcomes. Lactate, an end product of anaerobic glycolysis from oxygen deficit, is an obtainable marker of tissue hypoxia. The investigators aimed to determine the value of blood lactate level during CPB in adult cardiac surgeries in predicting outcomes. The investigators retrospectively reviewed the patients underwent cardiac surgeries with CPB from January 2015 to December 2015. The patient's characteristics, pre-operative status, surgical type, and intra-operative lactate levels were collected. The outcomes were in-hospital mortality and complications. Receiver operating characteristics (ROC) curves were used to assess the ability of peak lactate level during CPB to predict in-hospital mortality.