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Korean Journal of Clinical Oncology > Volume 16(2); 2020 > Article
Korean J Clin Oncol. 2020;16(2): 89-95.         doi: https://doi.org/10.14216/kjco.20014
Radiologic intervention due to delayed gastric emptying after pylorus preserving gastrectomy for gastric cancer does not affect pyloric function
Hyun Tae Lim1 , Shin-Hoo Park1 , Jong-Ho Choi1 , Jae Seok Bae2 , Seong-Ho Kong1 , Do Joong Park1 , Hyuk-Joon Lee1 , Se Hyung Kim2 , Han-Kwang Yang1
1Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
2Department of Radiology, Seoul National University College of Medicine, Seoul, Korea
Corresponding Author: Han-Kwang Yang ,Tel: +82-2-2072-2817, Fax: +82-2-766-3975, Email: hkyang@snu.ac.kr
Received: September 29, 2020;  Accepted: November 18, 2020.
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Purpose: The purpose of this study is to evaluate whether radiologic intervention in the pylorus decreases its function for delayed gastric emptying (DGE) patients after pylorus preserving gastrectomy (PPG) for gastric cancers and to determine the optimal interventional algorithm.
Methods: PPG patients who underwent intervention for DGE from January 2013 to December 2017 and a control group using propensity score matching were identified. Pyloric function was compared by subjective symptoms, postoperative upper gastrointestinal series at 3 months (short-term function), and esophagogastroduodenoscopy findings at 12 months (long-term function). Serum albumin levels and body weight change, 6 months and 12 months postoperatively, were compared to evaluate nutritional status. Interventional success rate, mean hospital stay, and recurrence of DGE were analyzed to determine the optimal intervention plan.
Results: Fifty-one out of 677 patients (7.53%) received intervention. There was no difference in pyloric function and nutritional status between the intervention and control groups. The interventional success rate for first-time balloon dilatation was 41.7% (20/48). If a second intervention was required and balloon dilatation was done, the success rate was 45.5% (5/11). However, if stent insertion was done, the success rate was 100% (17/17). Subsequent stent insertion after balloon dilatation resulted in a shorter mean hospital stay. Intervention including stent insertion had a lower recurrence of DGE than balloon only intervention (1.96% vs. 5.88%, P=0.041).
Conclusion: Radiologic intervention did not decrease long-term pyloric function. For treating DGE, if at first balloon dilatation fails, retrievable stent insertion can be considered as a second choice.
Keywords: Stomach neoplasms | Pylorus-preserving gastrectomy | Gastroparesis | Treatment outcome
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