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Sigmoid colon volvulus is a common cause of bowel obstruction and constipation. It is common in Asia, common in India (7% of intestinal obstruction) and especially South India because of high fibre diet. It is very common cause of large bowel obstruction in Peru and Bolivia due to high altitude. The condition is more common in males and with old age. It is also common in patients with chronic constipation and laxative abuse. It is common in: *1.Oglivie's syndrome *2.Individuals with learning difficulties *3.Chaga's disease *4.Hypothyroidism *5.Anticholinergic drugs *6.Multiple sclerosis *7.Scleroderma *8.Parkinson's disease In Sigmoid volvulus rotation is always anticlockwise. It requires one and half rotation to cause vascular obstruction and gangrene which eventually leads into perforation either at the root or at the summit of the sigmoid loop. == Clinical features == *1.pain in abdomen-initially left sided, eventually all over *2.absolute constipation *3.enormous distension of abdomen *4.late vomiting and eventually dehydration *5.features of peritonitis *6.hiccough and retching may occur *7.tyre-like feel of the abdomen is diagnostic 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sigmoid colon volvulus」の詳細全文を読む スポンサード リンク
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