Document Detail

Impaired emptying of the retained distal stomach causes delayed gastric emptying after pylorus-preserving pancreaticoduodenectomy.
MedLine Citation:
PMID:  17566824     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: Delayed gastric emptying (DGE) is the major morbidity after pylorus-preserving pancreaticoduodenectomy (PPPD). Gastroscintigraphy was used to characterize food distribution in the proximal and distal stomach during emptying. PATIENTS AND METHODS: Between October 2000 and June 2003, 20 healthy volunteers and 23 PPPD patients underwent single-phase gastric emptying scintigraphy 14 days after surgery. Scintigraphic studies of the stomach were divided into proximal and distal regions, and the ratio of proximal to distal radiation counts (P/DR) was plotted. Momentary monitor-displayed images were compared to evaluate meal distribution during emptying. RESULTS: There were 21 eligible patients, 12 without symptoms of DGE (sDGE-) and 9 with symptoms of DGE (sDGE+). In healthy volunteers the mean P/DR value was maintained at a level of > or = 2.5, and momentary images showed dilated proximal and constricted distal stomach throughout meal emptying. In both the solid and liquid phase tests, the average P/DR value for sDGE- patients was slightly lower than that for healthy volunteers, and momentary images showed early emptying of the solid meal. The mean P/DR value for sDGE+ patients was abnormally low and remained constant throughout the assessment. Momentary images showed significant dilatation of the distal stomach, with constant full size. The odds ratio for the change in P/DR per minute decreased after surgery, especially in sDGE+ patients, indicating a loss of contractility of the distal stomach. At the 6-month follow-up, the P/DR values exhibited a normal decreasing trend but were lower for sDGE+ patients than for healthy volunteers. CONCLUSIONS: The P/DR curve provides new insight into normal and pathological gastric function. After surgery, temporary loss of contractility of the distal stomach causes symptoms of DGE.
Yan-Shen Shan; Yu-Hsiang Hsieh; Wei-Jen Yao; Mei-Ling Tsai; Pin-Wen Lin
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  World journal of surgery     Volume:  31     ISSN:  0364-2313     ISO Abbreviation:  World J Surg     Publication Date:  2007 Aug 
Date Detail:
Created Date:  2007-07-16     Completed Date:  2008-01-15     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7704052     Medline TA:  World J Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1606-15     Citation Subset:  IM    
Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 138, Sheng-Li Road, Tainan, 70428, Taiwan.
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MeSH Terms
Aged, 80 and over
Follow-Up Studies
Gastric Emptying*
Middle Aged
Odds Ratio
Pancreaticoduodenectomy / adverse effects*,  methods
Stomach / physiopathology,  radionuclide imaging*
Stomach Diseases / etiology*,  physiopathology
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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