Five hundred and seventy-nine patients undergoing major laparotomy were randomly allocated to have midline or transverse incisions. Transverse incisions took longer to make and caused more bleeding but (in the absence of wound sepsis) no transverse wound burst and there were only 2 incisional hernias. In the midline group, without wound sepsis, there were 2 burst abdomens and 9 incisional hernias. When, however, those patients who suffered wound sepsis were also considered, there were no significant differences between the two groups.
Failures after abdominal wound closure (early dehiscences and late incisional hernias) are due to breakage of sutures, slippage of knots or tearing out of sutures from the tissues. The suture-holding capacity of the entire thickness of muscle and aponeurosis is nearly twice that of the anterior rectus sheath, and deep bites (1-0 cm from the cut edges) are nearly twice as secure as bites of 0-5 cm. In a random controlled clinical trial of 357 major laparotomies, closure with either layered monofilament nylon or mass polyglycolic acid or steel resulted in 2 burst abdomens (0-56%), 10 incisional hernias due to suture failure (3-4%) and 8 incisional hernias caused by deep sepsis (2-7%). There were no statistically significant differences among the treatment groups, but 1 patient in the nylon and 3 in the steel groups had persistent sinuses until their sutures were removed.
A series of 44 patients with complete or partial left-colon obstruction underwent laparotomy and intraoperative colonic lavage. Irrigation was unsuccessful in three, the operation being concluded by a Hartmann resection. In the remaining 41, the achievement of an empty colon allowed primary anastomosis after resection of the obstructing lesion. Seven patients (17.1 percent) died, none of dehiscence of the colorectal anastomosis, although minor anastomotic leaks occurred in four. The median postoperative hospital stay was 12 days. Two patients developed peritonitis (one fatal) from leakage of ileal contents when the irrigating catheter was introduced through an ileotomy and retained postoperatively, and this aspect of the technique is not recommended. The operation offers a single-stage alternative for patients with unprepared or ill-prepared bowels who require resection of left-colon lesions. The results compare favorably with the authors' previous experience of two- or three-stage resections (in-hospital mortality rate, 42 percent).
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