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JYMS : Journal of Yeungnam Medical Science

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Original article
Preemptive pyloroplasty for iatrogenic vagus nerve injury in intrahepatic cholangiocarcinoma patients undergoing extensive left-sided lymph node dissection: a retrospective observational study
Shin Hwang, Dong-Hwan Jung, Eun-Kyoung Jwa, Yumi Kim
J Yeungnam Med Sci. 2022;39(3):235-243.   Published online December 14, 2021
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  • 64 Download
  • 1 Web of Science
  • 1 Crossref
AbstractAbstract PDF
Intrahepatic cholangiocarcinoma (ICC) of the left liver often shows left-sided lymph node (LN) metastasis. If gastric lesser curvature is extensively dissected, it can induce an iatrogenic injury to the extragastric vagus nerve branches that control motility of the pyloric sphincter and lead to gastric stasis. To cope with such LN dissection-associated gastric stasis, we performed pyloroplasty preemptively. The objective of this study was to analyze our 20-year experience of preemptive pyloroplasty performed in 10 patients.
We investigated clinical sequences of 10 patients with ICC who underwent preemptive pyloroplasty following left hepatectomy and extended left-sided LN dissection. Incidence of gastric stasis and oncological survival outcomes were analyzed.
All 10 patients were classified as stage IIIB due to T1-3N1M0 stage according to the 8th edition of American Joint Committee on Cancer staging system. The overall patient survival rate was 51.9% at 1 year, 25.9% at 2 years, and 0% at 3 years. Seven patients showed uneventful postoperative recovery after surgery. Two patients suffered from gastric stasis, which was successfully managed with supportive care. One patient suffered from overt gastric paresis, which was successfully managed with azithromycin administration for 1 month.
We believe that preemptive pyloroplasty is an effective surgical option to prevent gastric stasis in patients undergoing extensive left-sided LN dissection. Azithromycin appears to be a potent prokinetic agent in gastroparesis.


Citations to this article as recorded by  
  • Clinical implications and optimal extent of lymphadenectomy for intrahepatic cholangiocarcinoma: A multicenter analysis of the therapeutic index
    Yuzo Umeda, Kosei Takagi, Tatsuo Matsuda, Tomokazu Fuji, Toru Kojima, Daisuke Satoh, Masayoshi Hioki, Yoshikatsu Endo, Masaru Inagaki, Masahiro Oishi, Takahito Yagi, Toshiyoshi Fujiwara
    Annals of Gastroenterological Surgery.2023; 7(3): 512.     CrossRef
Case reports
Pedunculated mucinous cystic neoplasm of the liver: a case report
Sang-Woo Ha, Shin Hwang, Hyejin Han, Song Ie Han, Seung-Mo Hong
J Yeungnam Med Sci. 2022;39(3):250-255.   Published online August 3, 2021
  • 4,215 View
  • 76 Download
AbstractAbstract PDF
In 2010, the World Health Organization classified mucin-producing bile duct tumors of the liver into two distinct entities; mucinous cystic neoplasm of the liver (MCN-L) and intraductal papillary mucinous neoplasm of the bile duct. We present the case of a patient with MCN-L having a uniquely pedunculated shape. A 32‐year‐old woman was referred to our institution with a diagnosis of biliary cystic neoplasm. She had undergone left salpingo-oophorectomy for ovarian cancer 15 years ago. Imaging studies showed an 8 cm-sized well defined, multiloculated cystic lesion suggesting a mucinous cystic neoplasm. The cystic mass was pedunculated at the liver capsule and pathologically diagnosed as MCN-L. The mass was resected with partial hepatectomy. The patient recovered uneventfully. She was discharged 7 days postoperatively. The patient has been doing well for 6 months after the operation. The patient will be followed up annually because of the favorable postresection prognosis of MCN-L.
Congenital web of the common bile duct combined with multiple intrahepatic duct stricture: a case report of successful radiological intervention
Hanseul Lim, Shin Hwang, Gi-Young Ko, Hyejin Han
J Yeungnam Med Sci. 2022;39(2):161-167.   Published online July 8, 2021
  • 4,671 View
  • 55 Download
AbstractAbstract PDF
Congenital web formations are extremely rare anomalies of the extrahepatic biliary tree. We herein report a case of common bile duct septum combined with multiple intrahepatic bile duct strictures in a 74‐year‐old female patient who was successfully treated with radiological intervention. The patient initially visited the hospital because of upper abdominal pain. Imaging studies revealed multifocal strictures with dilatation in both intra- and extrahepatic ducts; the final clinical diagnosis was congenital common bile duct web combined with multiple intrahepatic duct strictures. Surgical treatment was not indicated because multiple biliary strictures were untreatable, and the disease was clinically diagnosed as benign. The multiple strictures were extensively dilated twice through bilateral percutaneous transhepatic biliary drainage (PTBD) for 2 months. After 1 month of observation, PTBD catheters were successfully removed. The patient is doing well at 6 months after completion of the radiological intervention, with the maintenance of normal liver function. Congenital web of the bile duct is very rare, and its treatment may vary depending on the patterns of biliary stenosis. In cases where surgical intervention is not indicated for congenital web and its associated disease, radiological intervention with balloon dilatation can be a viable therapeutic option.

JYMS : Journal of Yeungnam Medical Science