View clinical trials related to Cardiac Surgery.
Filter by:In ventilated patients with acute respiratory failure endotracheal suctioning may lead to alveolar derecruitment, which can be monitored by means of functional residual capacity (FRC) measurements. Regional distribution of ventilation can be followed at bedside using electrical impedance tomography. The investigators hypothesize that a FRC guided recruitment strategy, aimed at restoring a baseline FRC value after open endotracheal suctioning, improves oxygenation and regional distribution of ventilation. In addition the investigators research the impact of such a strategy on the inflammatory response to mechanical ventilation.
Blood transfusion is related to worse outcomes and the triggers for red blood cells transfusion are not well defined in cardiac surgery. Retrospective studies in cardiac surgery do not show benefits of red blood cell transfusion in reduction of morbidity and mortality in cardiac surgery. There are no prospective studies comparing outcomes between restrictive or liberal strategy in cardiac surgery.This study is a double-blind randomized study comparing clinical outcomes between two strategies of transfusion in cardiac surgery - liberal or restrictive.
The objective of this study is to verify, through a randomized, single-blind, multicentre, parallel and comparative study, the effectiveness of heparin sodium of porcine origin in patients undergoing heart surgery that require the aid of cardiopulmonary bypass. The effectiveness will be determined through the control of hemostasis during and after surgery, based on the strengths of markers of coagulation trichloroacetic acid (TCA), alpha-tocopherol transfer protein (TTPA), Anti-Xa, heparin bioavailability and excessive loss of blood (bleeding) at the end of the surgery.
Patients undergoing cardiac surgery with cardiopulmonary bypass require significant fluid administration. Fluids are used routinely to replace blood lost during and after surgery. Significant amounts of fluid are also used to prime the tubing and components of the cardiopulmonary bypass pump before and during its use. The use of Pentaspan - a synthetic pentastarch - was started because of the restriction of use for blood and blood products, particularly albumin. Pentaspan is usually used after surgery in the Intensive Care Unit (ICU). The impact of the use of pentastarch on coagulation, fluid balance and bleeding are very limited. This study will methodically evaluate the impact of using increasingly greater amounts of pentastarch during surgery on an open heart surgery patient's recovery in particular - is there more bleeding, does his/her blood clot as well, and how much fluid overall is used and excreted?