Dünndarmischämie
Dünndarmischämie
bei innerer Hernierung: Im linken Hemiabdomen zeigen sich aufgespannte, deutlich hypodense (minder- bis nicht mehr perfundierte) Dünndarmschlingen. Vergleiche normale Schlingen im rechten Hemiabdomen. Intraperativ zeigt sich partiell schon nekrotischer Dünndarm bei Einklemmung in einer inneren Hernie.
Small bowel
ischemia • Arterial occlusive mesenteric ischemia - Ganzer Fall bei Radiopaedia
Small bowel
ischemia • Small bowel/mesenteric ischemia due to SMA embolus - Ganzer Fall bei Radiopaedia
Small bowel
ischemia • Superior mesenteric artery thrombosis with jejunal ischemia - Ganzer Fall bei Radiopaedia
Small bowel
ischemia • Small bowel ischemia - SMA embolus - Ganzer Fall bei Radiopaedia
Small bowel
ischemia • Small bowel ischemia - SMA thromboembolus - Ganzer Fall bei Radiopaedia
Small bowel
ischemia • Small bowel ischemia - SMV thrombosis - Ganzer Fall bei Radiopaedia
Small bowel
ischemia • Small bowel ischemia - SMV thrombosis - Ganzer Fall bei Radiopaedia
Small bowel
obstruction • Closed loop bowel obstruction and ischemia - Ganzer Fall bei Radiopaedia
Small bowel
ischemia • Closed loop obstruction due to adhesive band, resulting in small bowel ischemia and resection - Ganzer Fall bei Radiopaedia
Small bowel
ischemia • Small bowel infarction with portal venous gas - Ganzer Fall bei Radiopaedia
Small bowel
ischemia • SMV thrombosis with long segment jejunal infarction - Ganzer Fall bei Radiopaedia
Hepatic
infarction • Widespread abdominal ischemia - Ganzer Fall bei Radiopaedia
Small bowel
ischemia • Small bowel infarction - Ganzer Fall bei Radiopaedia
Intramural
bowel gas • Small bowel infarction and perforation - Ganzer Fall bei Radiopaedia
Small bowel
ischemia • Superior mesenteric artery occlusion and small bowel ischemia - Ganzer Fall bei Radiopaedia
Carcinoid
tumor • Mesenteric neuroendocrine tumor deposit with small bowel ischemia - Ganzer Fall bei Radiopaedia
Portal vein
thrombosis • Mesenteric venous thrombosis and small bowel ischemia - Ganzer Fall bei Radiopaedia
Small bowel
ischemia • Small bowel ischemia due to SMA embolus - Ganzer Fall bei Radiopaedia
Small bowel ischemia may be a life-threatening condition, arising from any one of numerous causes of disturbance of the normal blood flow through the small bowel wall.
Pathology
It can be divided into acute and chronic forms, with the main underlying etiologies (each discussed separately) being:
- acute
- occlusive mesenteric ischemia
- superior mesenteric artery occlusion (two-thirds of cases)
- superior mesenteric vein occlusion (5-10% of cases)
- non-occlusive mesenteric ischemia (e.g. shock bowel)
- systemic hypotension (e.g. cardiogenic, septic, or hemorrhagic shock)
- blunt abdominal trauma
- medication-induced (e.g. vasoconstriction from digitalis, amphetamines, cocaine)
- small vessel involvement
- chemotherapy-induced enteropathy (possibly ischemic in nature)
- acute radiation enteritis
- vasculitides (rare)
- small bowel obstruction
- increasing bowel wall diameter increases bowel wall tension, which increases the resistance to incoming blood flow
- occlusive mesenteric ischemia
- chronic
- atherosclerotic stenosis of the superior mesenteric artery (e.g. mesenteric angina)
- chronic radiation enteritis
See also
Siehe auch:
- Dünndarmileus
- Schockdarm
- Mesenterialinfarkt
- Vaskulitis
- Mesenterialvenenthrombose
- superior mesenteric artery occlusion
- acute radiation enteritis
- chronic radiation enteritis
und weiter:
Assoziationen und Differentialdiagnosen zu Dünndarmischämie:
