Search for dissertations about: "Open-heart surgery"

Showing result 1 - 5 of 26 swedish dissertations containing the words Open-heart surgery.

2. 1. Atrial fibrillation in cardiac surgery

   Author : Anders Ahlsson; Anders Englund; Johan Brandt; Örebro universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Atrial fibrillation; Inflammation; CABG surgery; Survival analysis; Follow-up studies; Ablation; Microwave; Transmurality; Atrial function; Tissue velocity echocardiography; Thoracic surgery; Thoraxkirurgi; Kirurgi; särskilt thoraxkirurgi; Surgery esp. Thoracic and Cardivascular Surgery;

   Abstract : Atrial fibrillation (AF) is the most common arrhythmia seen in clinical practice. In cardiac surgery, one-third of the patients experience episodes of AF during the first postoperative days (postoperative AF), and patients with preoperative AF (concomitant AF) can be offered ablation procedures in conjunction with surgery, in order to restore ordinary sinus rhythm (SR). READ MORE

4. 2. Risk stratification in cardiac surgery: Algorithms and applications

   Author : Johan Nilsson; Thoraxkirurgi; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Surgery; orthopaedics; traumatology; Kardiovaskulära systemet; Cardiovascular system; Cardiac surgery; Statistics; Artificial neural networks; Resource utilization; Mortality; Risk factors; Kirurgi; ortopedi; traumatologi;

   Abstract : The aims of this research was to compare different risk score algorithms with regard to their validity to predict 30-day and one-year mortality after open-heart surgery, to evaluate if the preoperative risk stratification model EuroSCORE predicts the different components of resource utilization in cardiac surgery, and to systematically evaluate the accuracy and performance of artificial neural networks (ANNs) to select and rank the most important risk factors for operative mortality in open-heart surgery. Preoperative evaluation of the surgical risk is an important component in cardiac surgery. READ MORE

5. 3. Neurochemical and cognitive aftermaths of surgery - studies on short- and long-term effects of surgery and anesthesia

   Author : Mattias Danielsson; Göteborgs universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Anesthesia; blood-brain barrier; brain amyloidosis; cardiac surgery; orthopedic surgery; inflammation; neuroinflammation; neuronal damage; cognitive decline; postoperative cognitive dysfunction;

   Abstract : Background: Each year, around the world, more than 230 million patients have surgery. Improvements in healthcare have resulted in older and sicker patients undergoing surgical interventions. As a result, surgical safety has be-come a global public-health concern. READ MORE

6. 4. Cellular monitoring in open heart surgery. Monitoring of markers for ischemia, free amino acids, glucose and lactate in the myocardial interstitial fluid before, during and after cardiac surgery using microdialysis technique

   Author : Charles Kennergren; Göteborgs universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; cardiac surgery; myocardial ischemia; microdialysis; interstitial markers; ASAT; troponin-T; amino acids; glucose; lactate;

   Abstract : Protection of the myocardium during open-heart surgery is a field of intense development. Numerous protocols have been proposed to minimize ischemia, since the beginning of open-heart surgery more than 40 years ago. READ MORE

7. 5. Metabolic intervention during blood cardioplegia. Clinical studies in coronary surgery and heart transplantation

   Author : Ulf Kjellman; Göteborgs universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cardiac surgery; heart transplantation; oxygen extraction; substrate metabolism; predictors of ischemic injuries; a - ketoglutarate; insulin;

   Abstract : Myocardial ischemia and injury (infarction) during open heart surgery and heart transplantation is a problem in spite of the fact that it is a safe procedure today. The myocardial substrate metabolism is well investigated before and after the cardioplegic period but little knowledge exists about the myocardial metabolic changes during cardioplegia. READ MORE