A total of 370 patients underwent colorectal resection: 320 had a prim
ary single-layer seromucosal anastomosis without a protective colostom
y, 22 had Hartmann's procedure and 28 abdominoperineal resection. Ther
e were 260 elective procedures and 110 patients had peritonitis and/or
bowel obstruction at the time of surgery. Overall the mortality rate
was 2.7 per cent, the morbidity rate was 18.3 per cent and clinical an
astomotic leak rate 3.4 per cent. After elective operation, the leak r
ate for intraperitoneal anastomosis was 0.6 per cent and for low extra
peritoneal anastomosis 7 per cent. The mortality rate was 1.2 per cent
and morbidity rate 11.9 per cent. Patients with peritonitis had a sig
nificant increase in morbidity rate (46 per cent) in comparison with t
hose having elective surgery (chi(2) = 31.5, 1 d.f., P<0.0001). Patien
ts who had bowel obstruction and no bowel preparation had a significan
tly higher morbidity rate of 26 per cent and mortality rate of 7 per c
ent, compared with those having an elective procedure (chi(2) = 11.2,
1 d.f., P<0.001; chi(2) = 8.7, 1 d.f., P<0.005 respectively). Patients
having palliative surgery had the highest mortality rate (19 per cent
), compared with those operated on with curative intent (1.5 per cent)
(chi(2) = 28.7, 1 d.f., P<0.0001). Cost-saving hand-sutured anastomos
is is effective and, in experienced hands, technically feasible after
all kinds of colorectal resection and should remain the standard in co
lorectal surgery.