Epidural analgesia enhances recovery after gastrointestinal surgery. The results support the development of structured regimens of early postoperative feeding and mobilization to exploit the potential for thoracic epidural analgesia to reduce hospital stay after gastrointestinal surgery.
MCM2 was more sensitive than Ki-67 in identifying colorectal mucosal proliferation. Increased proliferation (assessed by either MCM2 or Ki-67 staining) in mucosa at 10 cm, but not at 1 cm, from carcinoma significantly predicted origin from a carcinoma-associated colon.
Background: Colorectal cancer is associated with a ''field change'' of increased proliferation throughout the colonic and rectal mucosa. Both proliferation and apoptosis are disrupted during carcinogenesis. Whether altered apoptosis contributes to this field change of microscopic abnormality is, however, unclear. Bcl-xL is an anti-apoptotic protein that inhibits apoptosis by preventing release of cytochrome c, a recognised pathway to cell death. Aim: To determine whether Bcl-xL inhibition of apoptosis is increased in colorectal mucosa adjacent to colorectal adenocarcinoma over that in normal non-neoplastic colorectal mucosa. Patients: Patients undergoing surgical resection for neoplastic (adenocarcinoma) or non-neoplastic disease of the colorectum (rectal prolapse, diverticular disease or volvulus). Methods: Formalin-fixed, paraffin-wax-embedded surgical colorectal resection specimens were immunostained for Bcl-xL protein. Labelling indices were determined by counting the proportion of positively stained cells in mucosal crypts. Results: 85 patients were studied. Bcl-xL immunostaining was most marked in the upper third of mucosal crypts. It occurred in a minority of samples from non-neoplastic colorectal mucosa, but was seen in most mucosal samples adjacent to colorectal adenocarcinoma. Significant increases (p,0.001) were observed in Bcl-xL labelling indices in the mucosa at 1 cm (n = 46, median labelling index 31.8%, interquartile range 8.3-43.9%) and at 10 cm (n = 52, median labelling index 22.0%, interquartile range 0.0-36.3%) from colorectal carcinoma, compared with normal, non-neoplastic colorectal mucosa (n = 22, median labelling index 0.0%, interquartile range 0.0-0.0%). Conclusions: The findings are consistent with a field change of inhibited apoptosis in mucosa adjacent to colorectal carcinoma.
An 8-year-old boy with a history of recurrent abdominal pain presented with a 12 h history of severe periumbilical pain, nausea and vomiting. On examination, he was found to have a tender, erythematous, paraumbilical mass. At operative exploration, an abscess cavity was identified and followed to reveal a gangrenous Meckel's diverticulum, perforated at its tip to create the abscess. Around this Meckel's diverticulum, the small bowel had torted to produce a significant small bowel volvulus on a shortened mesentery. The caecum and ascending colon were found to be in the left upper quadrant and an intraoperative diagnosis of malrotation was made. Following resection of the Meckel's diverticulum and surgical correction of the malrotation, the child made an excellent recovery. His abdominal pain has not recurred in 6 months of follow-up since the operation.
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