Active observation has yielded a consistently low negative appendicectomy rate without a rise in the perforation rate; there was one death in over 1600 patients. It has proved to be a practical method of discriminating between patients who do and do not need an operation. In this situation, both ultrasonography and CT yield some false-negative reports, so results must be checked at the bedside. Furthermore, CT involves exposure to significant doses of radiation.

In a consecutive series of 93 patients who required emergency surgery for distal colonic lesions, 61 had primary bowel resection with immediate anastomosis after intra-operative antegrade colonic irrigation. The operative mortality was 8 per cent, anastomotic leakage rate 7 per cent and superficial wound infection occurred in 3 per cent of patients. The mean hospital stay was 13 days. Of the remaining 32 patients, 3 did not have a resection and 29 had a primary resection and end colostomy without anastomosis: bowel continuity was later restored in 17 of 28 survivors (61 per cent) but 11 (39 per cent) were left with a permanent colostomy. The hospital mortality in this group was 6 per cent, superficial wound infection rate 14 per cent and the mean hospital stay 26 days. The results of this study suggest that intra-operative colonic irrigation is an effective method enabling the surgeon to perform a primary anastomosis with reasonable safety after emergency resection of selected distal colonic lesions.

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During 1968-77, 572 consecutive children with one or more positive urine cultures who were referred by their family doctors to one paediatric surgical outpatient clinic were investigated and prospectively recorded. An abnormality requiring treatment was found in 45%.The yield of positive findings and need for operation were greater in those referred after one infection than in those with recurrent infection. Among those under 2 years old 90% had an abnormality. One third of children with vesicoureteric reflux showed renal scarring at the time of first attendance.The results of medical and surgical treatment over five to 15 years of follow up were analysed. They emphasised the importance of culturing the urine whenever there may be urinary infection in a child and of investigating immediately those with a positive urine culture.

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