Search for dissertations about: "venous obstruction"

Showing result 1 - 5 of 8 swedish dissertations containing the words venous obstruction.

2. 1. Non-invasive measurement of skeletal muscle blood flow using by photoplethysmography. Experimental studies on the human leg

   Author : Qiuxia Zhang; Göteborgs universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; photoplethysmography; skeletal muscle blood flow; perfusion pressure; intramuscular pressure; venous obstruction; muscle exercise; non-invasive; limb elevation; vibration exposure; hyperaemia; foot pump.;

   Abstract : The purpose of this thesis was to validate a new non-invasive photoplethysmography (PPG) method for measuring relative changes in local muscle blood flow (MBF) in the human leg. Experimental conditions expected to impede or increase local MBF were used to test responsiveness of the PPG. READ MORE

4. 2. Aspects of surgical treatment of morbid obesity : Clinical studies

   Author : Agneta Westling; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Surgery; obesity surgey; silicone adjustable gastric banding; band erosion; revision to RYGBP; laparoscopic RYGBP; deep venous thrombosis; depp venous insufficiency; Kirurgi; Surgery; Kirurgi; Surgery; kirurgi;

   Abstract : Common methods used for surgical treatment of morbid obesity are silicone adjustable gastric banding (SAGB), vertical banded gastroplasty (VBG) and Roux-en-Y gastric bypass (RYGBP). The role of laparoscopy in complex bariatric procedures such as RYGBP is unclear. READ MORE

5. 3. Transjugular intrahepatic portosystemic shunt in the treatment of symptomatic portal hypertension

   Author : Kerstin Rosenqvist; Rickard Nyman; Charlotte Ebeling Barbier; Fredrik Rorsman; Lars-Gunnar Eriksson; Lars Lönn; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Portal hypertension; TIPS; transjugular; portal venous thrombosis; mesenteric venous thrombosis; liver cirrhosis; interventional radiology; Radiology; Radiologi;

   Abstract : Portal hypertension (PHT) is a condition with serious complications, such as variceal bleeding, refractory ascites and bowel ischemia. The cause of PHT may be pre-, intra- or post-hepatic. Initial treatment is pressure-reducing drugs and the treatment of acute symptoms. READ MORE

6. 4. Articular distension in arthroscopy : an experimental study on intra- and extra-articular effects of pressure

   Author : Anders Sperber; Karolinska Institutet; Karolinska Institutet; []
   Keywords : Arthroscopy; intra-articular pressure; in vivo measurements; knee joint capsule; tensile properties; stress-strain; multicompartmental pressures; lower leg venous blood flow; ultrasound; acromioplasty; intra-muscular pressure; fluid absorption; shoul;

   Abstract : The purpose of this thesis was to analyse the effects of various intra-articular pressures (IAP) on soft tissues and to provide guidelines for the choice of safe infusion pressures during arthroscopy. The tensile properties of the knee-joint capsule were recorded from stress-strain-relaxation tests within 170 mmHg IAP. READ MORE

7. 5. Cerebral Perfusion during Cardiopulmonary Bypass

   Author : Thomas Tovedal; Fredrik Lennmyr; Stefan Thelin; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

   Abstract : Impaired superior vena cava (SVC) cannula outflow during cardiopulmonary bypass (CPB) is a frequent issue, often manifested by only marginal changes in routine monitoring parameters. Nevertheless, significant impact on cerebral perfusion may result. READ MORE