Is pyloric function preserved in pylorus-preserving pancreaticoduodenectomy?

Objective:

To assess the function of the pylorus after pylorus-preserving pancreaticoduodenectomy (PPPD) done for periampullary or pancreatic cancer.

Design:

Prospective, observational controlled clinical study.

Setting:

Teaching hospital, Italy.

Subjects:

17 patients who had undergone PPPD, and 15 healthy control subjects.

Investigations:

Endoscopy to check for gastritis and marginal ulcers and 24 h-pH monitoring and ^99mTc HIDA scintigraphy to detect jejunogastric reflux. Scintigraphy was also used to evaluate gastric and jejunal transit after a solid meal labelled with ^99mTc colloid sulphur.

Main outcome measures:

Signs of delayed gastric emptying, jejunogastric reflux and gastric outlet obstruction in the short and long term.

Results:

In the early postoperative period only 1 patient had delayed gastric emptying. In the long term, two patients had symptoms of dyspepsia and 8/11 showed alkaline reflux with persistent gastric pH more than 4 for more than 12 hours; 3 had histological signs of gastritis. There was no difference in gastric emptying compared with controls, but three patients had prolonged emptying time (T1/2 more than 85 minutes). Endoscopy findings correlated with pH monitoring results.

Conclusions:

After PPPD, most patients have abnormal pyloric function, but it is clinically evident in only a small proportion. Copyright © 1998 Taylor and Francis Ltd.