View clinical trials related to Mesenteric Ischemia.
Filter by:Background and aims: A gold standard diagnostic test to diagnose chronic mesenteric ischemia is currently lacking. Isotope labelled-butyrate and glucose breath testing could theoretically quantify mucosal oxygen consumption and thereby detect ischemia, since oxygen is needed to absorb and metabolize butyrate and glucose, and distinguish aerobic/anaerobic intestinal epithelial metabolism. Here we aim to test this notion and compare results to conventional biomarkers. Methods: Healthy volunteers were randomized into two control groups and two intervention groups, each consisting of five volunteers receiving either oral 13C -butyrate or 13C -glucose. The control groups performed breath tests without any physical exercise. The intervention groups performed a 30 minutes standardized bicycle exercise test, which has been proven to elicit mesenteric ischemia. Breath samples of expired 13CO2 were collected during a period of 4 hours and results were contrasted to measurements of biomarkers in peripheral blood.
To investigate a number of blood based parameters in patients with intestinal ischaemia compared to patients with other acute abdominal diseases.
This is a prospective, multicentre observational study screening all adult patients admitted to a participating hospital over a 6-month study period (may be adjusted to 4-8 months according to recruitment) and including all patients with suspicion of or confirmed acute mesenteric ischaemia (AMI). Only admission data and hospital mortality outcome will be collected for patients in whom suspicion of AMI is not confirmed. For patients with confirmed AMI full data collection regarding diagnostics, management and long-term outcome is required. Investigators aim to recruit 40-50 sites with expected median of 10-20 patients with confirmed AMI per site during the study period (naturally depending on the size of the hospital). The start of the study is planned for Spring 2022. The aim of the study is to identify the incidence of AMI and its different forms in adult hospitalized patients, and to describe patient characteristics (demographic, clinical and laboratory) at baseline, applied diagnostics and management, as well as outcomes in patients with AMI. An additional aim is to compare the baseline characteristics and outcomes of patients with confirmed AMI to those of patients with suspected AMI in whom the diagnosis was not confirmed.
Retrospective population-based study on epidemiology of acute mesenteric ischemia in Estonia Study objective is to describe epidemiologic features in adult patients with acute mesenteric ischemia during years 2016-2020. Patients from all hospitals in Estonia are included.
Background: Acute mesenteric ischemia is a vascular emergency with high mortality because of ambiguous symptomatology and a lack of early diagnostic markers. Lactate dehydrogenase has been described as a mortality biomarker and bowel necrosis length too. Nevertheless, the association between them has been mildly studied. Our objective was to evaluate the association between serum lactate admission levels, bowel necrosis extension, and mortality. Additionally, we performed a mortality characterization. Materials and Methods: A retrospective cross-sectional study was designed. We reviewed patients' clinical records with acute mesenteric ischemia that attended a hospital between 2012 and 2018. We compared serum lactate admission levels with bowel necrosis length and mortality. A receiver operating characteristic curve was performed on the last association. As post hoc analysis, a classification and regression tree on mortality was fitted.
To investigate which findings on a non-specific CT scan that predict acute primary intestinal ischaemia.
Minimal invasive intra-arterial prostaglandin therapy is currently being offered as an established and safe treatment approach for Non-occlusive mesenteric ischemia (NOMI). So far, there are no data that prospective evaluate clinical response parameters of this method and corresponding criteria for response. The investigators are therefore planning a prospective observational study on NOMI patients with the aim to collect 1. routine clinical data, 2. data from advanced angigraphic imaging and 3. data from blood biomarkers of intestinal ischemia before/at implementation of intra-arterial vasodilatory therapy. From these three data packages, the investigators hope to subsequentially derive criteria to better predict response to therapy.
Background: Acute kidney injury (AKI) is a common and serious postoperative complication in children with congenital heart disease. In this prospective cohort study, we tested the hypothesis that renal desaturation defined as a 20% decline of renal tissue oxygen saturation (SrtO2) from the baseline value is associated with AKI in infants undergoing ventricular septal defect (VSD) repair with cardiopulmonary bypass (CPB). Methods: Infants aged 1 months to 12 months and scheduled to undergo VSD repair with CPB were eligible. SrtO2 was monitored using a tissue near-infrared spectroscopy. Renal desaturation was defined as a decrease of SrtO2 measurement from the baseline value for more than 20% lasting for more than 60 s. The primary outcome was the incidence of AKI on postoperative 1-3 days according to the Kidney Disease: Improving Global Outcomes criteria. The secondary outcomes included different stages of AKI, duration of postoperative mechanical ventilation, duration of intensive care unit (ICU) and hospital stay, renal replacement therapy (RRT), and in-hospital mortality.
Superior Mesenteric Artery Syndrome (SMAS) is a rare cause of duodenal obstruction, that should be suspected in cases of chronic, refractory upper digestive symptoms. Between 2008 and 2016, 39 consecutive patients with chronic gastrointestinal symptoms and a diagnosis of SMAS were prospectively included in the study, in order to describe their demographic, clinical and outcome features. All patients underwent duodenojejunostomy.
This feasibility study has therefore several aims: 1. construct a dedicated CT perfusion protocol for GIT wall perfusion; 2. used a two-compartment pharmacokinetic model which is more adapted that a unique compartment model; 3. from the image acquired, evaluate current parameters of perfusion including the permeability ones