Effects of chewing gum against postoperative ileus after pancreaticoduodenectomy--a randomized controlled trial

Thomas Andersson, Kristofer Bjerså, Kristin Falk, Monika Fagevik Olsén, Thomas Andersson, Kristofer Bjerså, Kristin Falk, Monika Fagevik Olsén

Abstract

Background: Postoperative ileus is common after surgery. One non-pharmacological intervention that has shown promising results in reducing the duration of postoperative ileus is chewing gum after surgery. However, this has not been investigated in upper gastrointestinal surgery such as pancreatic surgery. Hence the aim of this study was to investigate the effects of chewing gum treatment on patients undergoing pancreaticoduodenectomy ad modum whipple due to pancreatic or periampullary cancer.

Methods: This study was conducted as a phase III trial that was terminated early. Patients diagnosed with pancreatic tumours scheduled for pancreaticoduodenectomy ad modum whipple were included. The treatment group received chewing gum postoperatively and standard care. Controls received glucose solution and standard care. Chewing gum and glucose were used four times a day during the whole hospital stay. Time to first flatus and stool was defined as the primary outcome. The secondary outcome was start with clear liquids, start with liquid diet and length of hospital stay.

Results: No statistically significant differences could be observed between the chewing gum intervention group and the control group. However, a numerical difference in mean time was observed in first flatus, first stool, start of clear fluids, and start of liquid diet and length of hospital stay in favour of the intervention group.

Conclusions: Although this study did not find statistically significant differences favouring the use of chewing gum for postoperative ileus, a positive trend was observed of a reduction of the impact of postoperative ileus among patients after pancreatic surgery. It also contributes valuable methodological experience that is important for future studies of chewing gum interventions during recovery after pancreatic surgery.

Trial registration: ClinicalTrials.gov identifier: NCT02319512 , publication date 2014-12-17.

Figures

Figure 1
Figure 1
Consort flowchart.

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Source: PubMed

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