Three-dimensional morphological study of the pancreatic microvasculature in caerulein-induced experimental pancreatitis

A morphological study of the pancreatic microvasculature in experimental pancreatitis was performed in dogs, using three-dimensional scanning electron microscopy vascular casting and transmission electron microscopy. Animals with pancreatitis were characterized by a marked reduction in the number of capillaries outlined by the cast and by distortion of those that were outlined, with irregularity of the capillary lumen, abruptly terminating capillary buds and leakage of the cast material through the capillary membrane. The study provides convincing morphological evidence that one of the earliest changes in acute pancreatitis is distortion of the capillary circulation.

The influence of delayed feeding on postoperative vomiting in hypertrophic pyloric stenosis

The influence of delayed feeding on postoperative vomiting after Ramstedt's pyloromyotomy was investigated. Two feeding regimens were compared, both of which involved a gradual increase in the strength of feeds: regimen A incorporating a 4-h fasting period and regimen B one lasting 24 h. Of the 67 patients who underwent Ramstedt's pyloromyotomy in 1978 and 1979, 33 were fed by regimen A and 34 by regimen B. Postoperative vomiting was significantly reduced both in incidence and severity in group B. This decrease in vomiting was accomplished without any increase in postoperative stay.