SEARCH RESULTS FOR: Ischemic-Colitis

Ischemic Colitis

Ischemic Colitis: Pathogenesis and clinical findings Superior and inferior mesenteric arteries (SMA and IMA) supply blood to colon Surgical repair of aorta Borders of SMA and IMA collaterals at the splenic flexure and rectosigmoid junction are vulnerable to ischemia (“watershed” areas) Atherosclerosis and narrowing of mesenteric arteries Low flow state (e.g., CHF, hypotension, arrhythmia) Underlying CAD/PVD Atrial fibrillation, endocarditis Embolic arterial occlusion of SMA and/or IMA Trauma, infection, clotting abnormalities Mesenteric vein thrombosis Vascular risk factors (e.g., smoking, hypertension) Thrombotic arterial occlusion of SMA and/or IMA Endograft coverage of IMA Nonocclusive hypoperfusion Inadequate blood flow to meet the cellular metabolic needs in the colon Ischemic Colitis Tachypnea Tachycardia Hyperthermia Hypotension Ischemic period Loss of oxygen and nutrients to bowel Reperfusion period Influx of O2àreacts to produce more oxygen free radicals Lipid peroxidation Systemic inflammatory response syndrome* Nausea and vomiting Abdominal pain (generally left sided) Peritonitis Leukocytosis Systemic shock (inadequate perfusion to tissue) Author: Audrey Caron Michael Blomfield Reviewers: Tony Gu Yan Yu* Edwin Cheng* * MD at time of publication Systemic shock (inadequate perfusion to body tissue) Hematochezia (Bloody stool) Gangrene (tissue death) Hemorrhage Tissue damage/cell death (starting from mucosa and submucosa going outwards to serosa) Mucosal ulceration Colonic inflammation Legend: Pathophysiology Mechanism Sign/Symptom/Lab Finding Complications Published November 10, 2019 on www.thecalgaryguide.com

colitis-isquemica-patogenesis-y-hallazgos-clinicos

colitis-isquemica-patogenesis-y-hallazgos-clinicos

Ишемическии-колит

Ишемический колит: Патогенез и клинические проявления