Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 49 for “"cardiopulmonary bypass"”.
-
Biocompatible circuits : inflammation and soluble adhesion molecules after cardiopulmonary bypass
… common post-operative complications following cardiopulmonary bypass (CPB) are neurocognitive deficits (NCD) and atrial fibrillation (AF). Both morbidities have been linked to inflammation resulting from surgery, anesthesia and CPB. Microemboli, inadequate oxygen delivery and the inflammatory …
-
A monitoring and display system for a cardiopulmonary bypass loop
… monitoring and display system for a cardiopulmonary bypass loop is discussed. Analog signals representing blood temperature and oxygen saturation of sample points entering and leaving the blood oxygenator, patient temperature, oxygenator heat exchanger water temperature and hemoglobin …
-
Design of a patient monitoring system for cardiopulmonary bypass surgery
A patient monitoring system for cardiopulmonary bypass surgery has been developed. This monitoring system uses a SWAN 286-10 computer (fully IBM PC/AT compatible) and a DT280l-A Input/Output board to monitor seven surgical parameters. This system monitors six temperatures, the hemoglobin content, …
-
Changes in the clotting viscoelasticity caused by cardiopulmonary bypass (CPB) surgery
One to three percent of the Open Heart Surgery procedures have abnormal bleeding due to acquired platelet dysfunction. Standard clotting tests to determine the cause of bleeding usually take between 25 and 60 minutes to get results. This time frame is not useful for deciding what type of treatment …
-
The short-term effects of off-pump cardiopulmonary bypass graft surgery on cognitive performance
… has been associated with coronary artery bypass graft surgery (CABG). This study investigates the short-term effects of off-pump cardiopulmonary bypass graft surgery (OPCAB) on cognitive performance, as a possible safer alternative in the treatment of coronary artery disease. This research …
-
A study of potassium level alterations in twenty cardiac surgical patients subjected to cardiopulmonary bypass
The events of cardiac surgery combined with moderate hypothermia hemodilution perfusion and postoperative respiratory care provide the stimuli for the alteration of K<sup>+</sup> levels in red blood cells, plasma, and urine. The purpose of this study was to measure the deviations from normal …
-
The effects of preconditioning coronary artery disease patients with hyperbaric oxygen prior to coronary artery bypass graft surgery & cardiopulmonary bypass
IntroductionCoronary artery bypass graft (CABG) is associated with periods of ischaemia and reperfusion, which may lead to myocardial dysfunction. In clinical studies, hyperbaric oxygen (HBO2) treatment following an acute myocardial infarction (AMI), has been shown to limit myocardial injury and …
-
Outcomes of "off-pump" coronary artery bypass grafting in a developing country : advantages over coronary artery bypass grafting on cardiopulmonary bypass
Off-pump coronary artery bypass grafting (OPCAB) was developed to avoid the deleterious effects of CPB. Current literature reveals some peri-operative advantages of OPCAB, with few studies detailing these in Africa. We review our institutional experience with both approaches in higher risk patients …
-
Pre-treatment of patients undergoing cardiopulmonary bypass with hyperbaric oxygen : a prospective randomised double-blind evaluation of inflammatory response and neurocognitive outcome
… diffuse cerebral injury due to micremboli during cardiopulmonary bypass, continues to occur following cardiac surgery.Previous human and animal studies have shown that hyperbaric oxygen can reduce some of the mediators of inflammation. Evidence from animal experiments also suggest that …
-
Zytokinproduktion bei Neugeborenen mit Transposition der großen Arterien im Verlaufe der Arteriellen Switch Operation : Beziehung zur Myokardzelldysfunktion
… deep hypothermic circulatory arrest and low-flow cardiopulmonary bypass at a median age of 7 days. Perioperative plasma concentrations of interleukins 6 and 8 were correlated with myocardial dysfunction, as assessed clinically and by echocardiography within 24 hours after the operation, and with …
-
Intramyokardiale Expression von COX-2 und TNF[alpha] in Abhängigkeit von der Kerntemperatur bei Herzoperationen mit extrakorporalem Kreislauf : eine tierexperimentelle Untersuchung
Cardiac surgery by use of cardiopulmonary bypass goes along with extensive systemic inflammatory response. Our aim was to investigate the signal transmission leading to intramyocardial expression of TNFalpha and COX-2 using the pig model. Another focal point was further research concerning the …
-
Paediatric cardiac anaesthesia in sickle cell disease : a case series
… anaesthesia for corrective cardiac surgery on cardiopulmonary bypass (CPB). During the perioperative period these high-risk patients may suffer significant complications when exposed to the conditions that favour erythrocyte sickling. This case series details our experience of four paediatric …
-
Validierung eines neuen Modells zum kompletten kardiopulmonalen Bypass bei der Ratte durch Überprüfung der kognitiven Leistung, des neurologischen Status und des allgemeinen Verhaltens
… as well as the behaviour after a complete cardiopulmonary bypass with a technological improved oxygenator adapted to the size of the rat.
-
Análisis de dos esquemas de tratamiento con hierro oral e intravenoso en cirugía cardiaca : ensayo clínico en fase IV, randomizado, doble ciego y doble enmascarado
… Anemia is a frequent complication after cardiopulmonary bypass surgery. Iron therapy has been variably employed by medical centres over the years. Objective: To test the clinical effectiveness of intravenous and oral iron supplementation in correcting anemia, and its impact on blood …
-
Controlled cross circulation: effects on donor hemodynamics
… to assess hemodynamic changes in the donor dog. Cardiopulmonary bypass was performed for 45 minutes, with an aortic cross clamp time of 3 5 minutes. Anesthesia was maintained in the donor dog with 1.8% end-tidal isoflurane. Parameters before and after controlled cross circulation were compared …
-
Relations Between Infants with Single Ventricle Heart Disease, Access to Healthcare, and Survival in Rural Communities
… through comparison of the infant's diagnosis, cardiopulmonary bypass times, extracorporeal membrane oxygenation (ECMO), baseline saturations, weight gain, and mode of feeding to interstage mortality. Aim 1 - Seattle Children’s dataset (SCH). Aim 2 - Pediatric Heart Network public datasets …
-
The relationship between metabolic acidosis, lactate, the lactate:pyruvate ratio, and outcome, in children with post-operative cardiogenic and septic shock
… compromise following cardiac surgery on cardiopulmonary bypass (CPB) and in septic shock. prognostic studies of acid-base data for critically ill children in the settings of post-operative cardiogenci shock and septic shock are relatively scarce. It has been suggested that hyperchloraemia …
-
A retrospective audit of the clinical value of routine chest radiographs in the first 24 hours after cardiac surgery using medical records
… where systemic inflammatory response due to cardiopulmonary bypass is the main culprit [Milot J et al, 2001] - leading to acute lung injury. Over and above the usual cardiovascular diseases that require surgical intervention, in Sub-Saharan Africa, inflammatory and infective conditions such …
-
Artificial muscle technology applied towards treating ischemic mitral regurgitation caused by left ventricular remodeling
… heart be stopped and the patient be placed on a cardiopulmonary bypass pump for many hours. Both treatment approaches have serious side-effects, including relapse of the MR as quickly as six months post-operatively. This thesis concerns the development of an active artificial muscle patch (AMP) …
-
Isolation, characterization, and functional assessment of novel smooth muscle like stem progenitors
… stem progenitor cells (SMSPC) were isolated from cardiopulmonary bypass filters of adult patients undergoing CABG. Rat SMSPC have previously been isolated by our group from the bone marrow of Fischer rats and also from the peripheral blood of monocrotaline induced pulmonary hypertension (MCT-PHTN) …
Page 1 of 3