Role of Monocytes Adhesion and Vascular Lesions in Vascular Access Success or Failure in Uremic...
End Stage Renal DiseaseArteriovenous FistulaThis study is designed to identify novel predictors of vascular access success or failure in chronic kidney disease patients. Despite efforts to improve placement of arteriovenous fistula (AVF) the primary failure rates are reported as high as 20-50%, but standard tools like ultrasound cannot inform the clinician sufficiently to accurately predict success or failure. The aim of this study is to perform enhanced assessments of arterial health preoperatively and correlate these measurements with vascular lesions (microscopic tissue changes and monocyte infiltration) and early AVF outcome. Activation of monocytes in uremia condition is responsible for endothelium dysfunction, intimal hyperplasia and atherosclerosis. The investigators expect that stiff arteries caused by monocyte dysfunction refer to the poor distensability and probably longer maturation time.
Evaluate Capsular Apposition to Intraocular Lens
Capsule OpacificationTissue Adhesions2 moreIn this study, the investigators examined the capsule-IOL interaction including anterior and posterior capsule adhesion, contact between posterior capsule and the posterior edge of intraocular lense (IOL), configuration of capsular bend and the incidence of posterior capsular opacity (PCO) between high myopia eyes and emmetropia eyes.
Cine-magnetic Resonance Imaging (MRI) Detecting Intra Abdominal Adhesions
Tissue AdhesionsOfficial title: Sensitivity and predictive value of functional cine magnetic resonance imaging (MRI) detecting intra-abdominal adhesions Background: Adhesions are a frequent problem in abdominal surgery. The formation of adhesions is part of a normal wound healing. However in some patients adhesions cause severe complications such as chronic pain, obstruction and strangulation of the bowel. Adhesions can also obstruct access to the peritoneal cavity and complicate reoperations. Accurate imaging of adhesions would be of benefit avoiding adhesion related complications at repeated laparotomy or laparoscopy. At present no validated diagnostic tool mapping adhesions exists. Purpose: To define the sensitivity and specificity of functional cineMRI in detecting and mapping adhesions in patients undergoing reoperation. Design: Prospective multicenter observational trial Primary outcome: Sensitivity and specificity of functional MRI detecting adhesions to the abdominal wall Secondary outcome: Sensitivity and specificity of functional MRI detecting organ-to-organ adhesions. Estimated enrollment: 100 Estimated study completion date: dec 2019 Estimated primary completion date: dec 2019
National Snapshot Study Adhesive Small Bowel Obstruction (ASBO)
Surgery-Induced Tissue AdhesionSurgical Adhesions2 moreOver 63-90% of patients develop peritoneal adhesions after abdominal or pelvic surgery. Which makes it the most common complication after abdominal or pelvic surgery. Adhesions comprise a lifelong risk of adhesion related complications.The most frequent emergency complication of adhesion is an episode of adhesive small bowel obstruction (ASBO). Over 1 in 5 patients experiences at least 1 episode of ASBO in the 10 years following initial abdominal surgery. Despite the high incidence of ASBO, diagnosis and treatment of an episode of ASBO varies greatly between hospitals and even between doctors. Until now, optimal treatment patterns are unknown. The aim of this study is mapping of care for patients with a suspected episode of ASBO. With the collected data new hypothesis will be generated for the ideal diagnostic and therapeutic workflow for patients with a suspicion of an episode of ASBO.
Prevention of Adhesions During Celioscopy for Endometriosis. Impact of the Use of Anti-adhesion...
EndometriosisAdhesiveThus is a longitudinal, prospective, multicentric observational study performed in mainland France, among a sample of gynaecology surgeons practising at endometriosis "expert" centres. The aim of this study is to describe, under real treatment conditions in patients suffering from endometriosis, the impact of the use of anti-adhesion treatment during celioscopy surgery on the development of clinical signs in the patients and their fertility at one year.