Prophylactic metronidazole with and without cefuroxime in elective colorectal surgery. A prospective randomised double-blind study.
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Biomedical subjects
Publications and source records attributed to N Carr.
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A plasmid designated pDC1 from the cyanobacterium Nostoc sp. MAC PCC 8009 was incubated with 16 different restriction enzymes, of which 8 cleaved pDC1. Plasmid pDC1 has a single site for ClaI, two sites for each of BglI, EcoRI, EcoRV, and MluI, three sites for HpaI, and four for HindIII. A restriction map of pDC1 for these 7 enzymes was constructed.
This paper presents a review of 64 patients in whom the first symptoms of inflammatory bowel disease occurred after the age of 60 years. Inflammatory bowel disease in older patients affects the large bowel much more commonly than the small bowel. The commonest variant is disease localized in the rectum and distal colon, and many of these patients have Crohn's disease (14 out of 28 patients). In 19 patients with localized left-sided colitis it was difficult to distinguish ischaemic colitis, acute diverticulitis and Crohn's disease. Patients with left-sided colitis or total colitis (15 patients) had a high incidence of acute complications, particularly colonic perforation. There should be an awareness of the risks associated with all types of colitis in the older patient.
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Superior mesenteric venous occlusion may be difficult to recognize, but is important as it carries a better prognosis than superior mesenteric arterial occlusion, an may be amenable to surgical treatment. Three cases of primary superior mesenteric venous occlusion are described. The diagnosis was unsuspected until discovered at laparotomy. Non-viable bowel was present in all cases and in two cases thrombosed veins were apparent in the mesentery. The lesion was localized in distribution, and generous bowel resection with primary anastomosis was performed. Recovery was uncomplicated in all cases. When the thrombosis appears well localized, generous resection with primary anastomosis seems a suitable alternative to resection and exteriorization or conservative treatment with a second-look procedure.
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