View clinical trials related to Cardiac Surgery.
Filter by:The prevalence of heart diseases has increased significantly in recent years and it is a health public problem due to an increased risk of death by several reasons. A cardiac surgery is an alternative of treatment for critical injuries heart valves and coronaries arteries. Changes in respiratory system resulting from cardiac surgery are well established and include a reduced functional capacity due post-surgical pain, causing increased respiratory function and increased oxygen consumption . The exercises with the cycle ergometer in phase I of cardiac rehabilitation can improve peripheral muscle strength, functional capacity and perception of dyspnea when used postoperatively and there are speculations if an earlier carried out can contribute to a better postoperative evolution of patients, but these benefits in phase I of the Rehabilitation Cardiac are not well defined in the literature. Objective: To evaluate the exercises effects with ergometer cycle in the postoperative course of patients undergoing cardiac surgery. Method: Patients will be recruited the cardiac surgery service of Polyclinic Pato Branco in the city of Pato Branco in state of Paraná, of both sexes, appropriate for the inclusion criteria, which will be evaluated by pulmonary function tests (strength of respiratory muscles, submaximal exercise test, dyspnea scales, laboratories tests and radiological exam). All patients will be randomly assigned for one of two groups: the control group (Conventional treatment) and rehabilitation group (conventional treatment +cycle ergometer), for about 7 days at postoperative period. Patients will be reevaluated on the third postoperative day and at discharge. Clinical evolution data will be collected from the records and notes of the medical staff and monitoring physiotherapist.
This study compares the results of current standard coagulation measurement devices to the Quantra System, a new device, using small amount of extra blood obtained during routine blood draws in cardiac surgery patients.
To estimate prevalence of chronic obstructive pulmonary disease (COPD) in cardiac surgery population and establish links between COPD status, as assessed through pulmonary functional tests, and 2-year mortality
The investigators will recruit and randomize 200 elective cardiac surgery patients to receive physiologic oxygenation (normoxia) or hyper-oxygenation (hyperoxia) during surgery to test the hypothesis that intraoperative physiologic oxygenation decreases the generation of reactive oxygen species, oxidative damage, and postoperative organ injury compared to hyper-oxygenation.
Postoperative acute renal failure is a frequent complication after cardiac surgery. The current practice cannot predict Acute Kidney Injuries (AKI) early enough to reduce a significant kidney assault and prevent an organic dysfunction leading to cortical tubular necrosis. Several recent studies in cardiac surgery have shown that, both sonographic criteria, such as the Renal Resistive Index (IRR) and urinary biomarkers can predict AKI promptly. These urinary biomarkers are the 'tissue inhibitor of metalloproteinases' (TIMP-2) and the 'insulin-like growth factor binding protein' (IGFBP7). These two proteins are sought noninvasively, directly in the urine, within the same test called 'NephroCheckTM'. These markers, ultrasonographic and biologic, have the advantage of being easy to perform, accessible and seem to have both high sensitivity and specificity to predict AKI promptly after cardiac surgery. Thus, the IRR and the NephroCheckTM test could become essential tests to guide clinicians in determining rapidly whether a patient will develop AKI. However, so far, no study has compared these markers yet. Therefore, the aim of this prospective observational study will be to compare the effectiveness of the IRR with the NephroCheckTM to predict AKI promptly after cardiac surgery. The secondary outcome will be to determine the threshold of these markers from which patients will be likely to develop AKI
The aims of the present study are to evaluate the information obtained by the EarlySenese monitoring system and examine correlation of the obtained data and clinical events.
After cardiac surgery, many complications can arise, in particular at the cardiac and lung level and it is true especially as the patient is with comorbidity. A patient will be considered at risk of a cardiac surgery if risk factors are present in preoperative (obesity, Chronic obstructive pulmonary disease (COPD), etc...). The non-invasive ventilation (NIV)developed these last years in the treatment of acute cardiac insufficiency and the hypercapnic COPD exacerbations; its use is more and more envisaged in cardio-thoracic and abdominal surgery services. Studies showed that the NIV allowed an improvement of the oxygenation, the lung volumes and a decrease of ventilation work. According to these observations, the preventive NIV could reduce the incidence of appearance of the lung and/or cardiac complications at the patients to risk. we estimate 40 to 50%of cardiac surgery patients at a high risk level and we expect to obtain a benefit with this particular population. If we meet our goal (a significant difference in terms of morbi-mortality with the preventive NIV versus classical care), we expect the systematisation of this procedure to all cardiac surgery high risk patients.
In septic patients, Septiflux1 study identified immature granulocytes which may have a diagnostic and prognostic interest. However, with these preliminary results it is not possible to make a difference between what is linked to the infection and what is a consequence of the inflammation which goes along with the septic process. Using flow cytometry, the study of leukocytes in a pure inflammatory model such as cardiopulmonary bypass in heart surgery could make possible to test the diagnostic interest of the immature granulocytes but also to attribute a prognostic value for the occurrence of post-operative infections.
Diaphragm dysfunction is common after cardiac surgery and may delay weaning from mechanical ventilation and cause respiratory distress. The investigators' main objective is to determine the incidence of diaphragm dysfunction ( using the non-invasive ultrasonic method by calculating the inspiratory diaphragmatic thickening fraction) in a selected population of cardiac surgery patients during weaning from mechanical ventilation. The second endpoints are to determine the associated risk factors to post-operative diaphragm weakness and the consequence on the patient outcome.
Currently, the management of pain after cardiac surgery is based on the concept of multimodal analgesia: Combined use of non-opioid analgesics associated with morphine intravenous analgesia by a system controlled by the patient (patient-controlled analgesia-PCA). The combination of paracetamol and morphine PCA is very effective on pain at rest, but is limited on pain mobilization and causes the problem of side effects associated with opioid (overdose, sedation, respiratory depression, gastrointestinal intolerance, urinary retention ...) which are contributing factors to increase the length of stay in Intensive Care Unit, an additional cost of care and an increase postoperative morbidity and mortality. Methods that have proved their effectiveness on pain and mobilization used in postoperative cardiac surgery are: anti-inflammatory drugs (NSAIDs) and / or loco-regional analgesia techniques. NSAIDs enhance analgesia produced by PCA Morphine and allow a reduction in morphine consumption, improved postoperative pain, decreased sedation and decreased postoperative morbidity and mortality. Adverse effects of NSAIDs are commensurate with their time and exposure dose. Consequently, NSAIDs, in the absence of against-indications, should always be prescribed and used at the lowest effective dose and for the shortest possible time. Some studies have suggested that lower doses of NSAIDs didn't appear to affect their effectiveness. At present, the investigators have no studies that address the hypothesis from which minimum dose of ketoprofen analgesic effect is obtained. The investigators hypothesis is that lower dose ketoprofen may have efficacy on pain in the postoperative mobilization of cardiac surgery. The investigators want to find, in their study, this "optimal" ketoprofen dose which would be the minimum dose for clinical efficacy demonstrated dose. This optimal dose could reduce the number of adverse effects of NSAIDs, but their study will probably not have enough power to prove it. NSAID use at these low doses, in postoperative cardiac surgery, could be extended to patient populations most at risk or for a duration longer than 48 hours.