Was ist ein Mesenterial Infarkt?
Der Mesenterialinfarkt ist der akute Verschluss eines Darmgefäßes, der zur kritischen Minderversorgung des Darmes mit Infarzierung und Nekrose des durch das Gefäß versorgten Abschnitts führt. Es kann sich sowohl um einen Infarkt einer Arterie als auch um den Verschluss einer Vene handeln.
Was ist akute Ischämie?
bezeichnet eine Verminderung oder Unterbrechung der Durchblutung eines Organs, Organteils oder Gewebes in Folge mangelnder arterieller Zufuhr (durch Thrombose, Embolie, Gefäßspasmus).
What do you need to know about colon ischemia?
Colonic ischemia is a relatively frequent pathophysiologic occurrence that leads to colonic epithelial cell hypoxia and the activation of distinct molecular pathways. Walter E. Longo MD, MBA, FACS, FASCRS, Anthony M. VernavaIII MD, FACS, FASCRS, in Current Therapy in Colon and Rectal Surgery (Second Edition), 2005
Which is more common reversible or irreversible colonic ischemia?
The majority of patients with reversible disease develop colopathy, whereas transient colitis develops in approximately one-third. Severe reversible ischemia may result in diffuse mucosal sloughing. Severe, irreversible colonic ischemia occurs less frequently than reversible colonic ischemia.
Is it safe to have a colonoscopy for ischemic colitis?
Because ischemic colitis is a distinct subtype of ischemic bowel disease most often limited to the superficial mucosa, colonoscopy is an alternative and usually safe modality in the diagnosis of this entity and proved more accurate that conventional x-ray and proctoscopy. MeSH terms Aged
Why is the rectum rarely involved in ischemia?
The rectum is very rarely involved because of its abundant dual blood supply from both the splanchnic and systemic arcades. Patients noted to have right-sided–only ischemia more commonly have atrial fibrillation, coronary artery disease, and chronic kidney disease. 47,48