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Hodo Y, Takatori H, Komura T, Asahina Y, Chiba T, Takabatake H, Hasatani K, Nishino R, Yano M, Takata Y, Suda T, Shugo H, Nakanishi H, Yamada K, Miwa K, Kaji K, Nishitani M, Miyazawa M, Yamashita T. Prognostic impact of clinical outcome after endoscopic gastroduodenal stent placement for malignant gastric outlet obstruction: a multicenter retrospective cohort study using a time-dependent analysis. Therap Adv Gastroenterol 2023; 16:17562848231156279. [PMID: 36895284 PMCID: PMC9989375 DOI: 10.1177/17562848231156279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 01/24/2023] [Indexed: 03/08/2023] Open
Abstract
Background Endoscopic gastroduodenal stent (GDS) placement is widely used as a safe and effective method to rapidly improve gastrointestinal symptoms of malignant gastric outlet obstruction (MGOO). While previous studies reported the utility of chemotherapy after GDS placement for prognosis improvement, they did not fully address the issue of immortal time bias. Objectives To examine the association between prognosis and clinical course following endoscopic GDS placement, using a time-dependent analysis. Design Multicenter retrospective cohort study. Methods This study included 216 MGOO patients who underwent GDS placement between April 2010 and August 2020. Data of patient baseline characteristics, including age, gender, cancer type, performance status (PS), GDS type and length, GDS placement location, gastric outlet obstruction scoring system (GOOSS) score, and history of chemotherapy before GDS were collected. The clinical course following GDS placement was evaluated by GOOSS score, stent dysfunction, cholangitis, and chemotherapy. A Cox proportional hazards model was used to identify prognostic factors after GDS placement. Stent dysfunction, post-stent cholangitis, and post-stent chemotherapy were analyzed as time-dependent covariates. Results Mean GOOSS scores before and after GDS were 0.7 and 2.4, respectively, with significant improvement after GDS placement (p < 0.001). The median survival time after GDS placement was 79 [95% confidence interval (CI): 68-103] days. In multivariate Cox proportional hazards model with time-dependent covariates, PS 0-1 [hazard ratio (HR): 0.55, 95% CI: 0.40-0.75; p < 0.001], ascites (HR: 1.45, 95% CI: 1.04-2.01; p = 0.028), metastasis (HR: 1.84, 95% CI: 1.31-2.58; p < 0.001), post-stent cholangitis (HR: 2.38, 95% CI: 1.37-4.15; p = 0.002), and post-stent chemotherapy (HR: 0.01, 95% CI: 0.002-0.10; p < 0.001) significantly affected prognosis after GDS placement. Conclusion Post-stent cholangitis and tolerability to receive chemotherapy after GDS placement influenced prognosis in MGOO patients.
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Affiliation(s)
- Yuji Hodo
- Department of Gastroenterology, Saiseikai Kanazawa Hospital, Kanazawa, Ishikawa, Japan
| | - Hajime Takatori
- Department of Endoscopy, Kanazawa University Hospital, 13-1 Takaramachi, Kanazawa, Ishikawa 921-8641, Japan
| | - Takuya Komura
- Department of Gastroenterology, National Hospital Organization Kanazawa Medical Center, Kanazawa, Ishikawa, Japan
| | - Yoshiro Asahina
- Department of Gastroenterology, National Hospital Organization Kanazawa Medical Center, Kanazawa, Ishikawa, Japan
| | - Tomoyoshi Chiba
- Department of Gastroenterology, Public Central Hospital of Matto Ishikawa, Hakusan, Ishikawa, Japan
| | - Hisashi Takabatake
- Department of Gastroenterology, Kanazawa Red Cross Hospital, Kanazawa, Ishikawa, Japan
| | - Kenkei Hasatani
- Department of Gastroenterology, Fukui Prefectural Hospital, Fukui, Fukui, Japan
| | - Ryuhei Nishino
- Department of Gastroenterology, Hakui General Hospital, Hakui, Ishikawa, Japan
| | - Masaaki Yano
- Department of Gastroenterology, Toyama Prefectural Central Hospital, Toyama, Toyama, Japan
| | - Yoshiko Takata
- Department of Gastroenterology, Tonami General Hospital, Tonami, Toyama, Japan
| | - Tsuyoshi Suda
- Department of Gastroenterology, Kanazawa Municipal Hospital, Kanazawa, Ishikawa, Japan
| | - Haruhiko Shugo
- Department of Gastroenterology, Keiju Medical Center, Nanao, Ishikawa, Japan
| | - Hiroyoshi Nakanishi
- Department of Gastroenterology, Ishikawa Prefectural Central Hospital, Kanazawa, Ishikawa, Japan
| | - Kazutoshi Yamada
- Department of Gastroenterology, Toyama City Hospital, Toyama, Toyama, Japan
| | - Kazuhiro Miwa
- Department of Gastroenterology, Komatsu Municipal Hospital, Komatsu, Ishikawa, Japan
| | - Kiichiro Kaji
- Department of Gastroenterology, Komatsu Sophia Hospital, Komatsu, Ishikawa, Japan
| | - Masaki Nishitani
- Department of Gastroenterology, Kanazawa University Hospital, Kanazawa, Ishikawa, Japan
| | - Masaki Miyazawa
- Department of Gastroenterology, Kanazawa University Hospital, Kanazawa, Ishikawa, Japan
| | - Taro Yamashita
- Department of Gastroenterology, Kanazawa University Hospital, Kanazawa, Ishikawa, Japan
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Maetani I. How to successfully administer palliative treatment with a stent for malignant gastric outlet obstruction? Front Med (Lausanne) 2022; 9:967740. [PMID: 36017000 PMCID: PMC9395687 DOI: 10.3389/fmed.2022.967740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 07/18/2022] [Indexed: 11/13/2022] Open
Abstract
Although endoscopic stenting (ES) has been widely used as a less-invasive palliation method for malignant gastric outlet obstruction (GOO), recent reports have highlighted issues related to the procedure. For successful treatment, various aspects must be assessed before considering the practices. First, it is necessary to eliminate cases with contraindications such as coexistence of distal small-bowel obstruction or perforation. Other factors potentially related to clinical failure (i.e., peritoneal carcinomatosis) may require consideration but remain controversial. ES has better short-term outcomes than surgical gastrojejunostomy (GJ). GJ has recently been considered preferable in cases with longer life expectancy because of superior sustainability. Various types of stents are now commercially available, but their ideal structure and mechanical properties have not yet been clarified. Covered metal stent may reduce stent obstruction but is prone to increase stent migration, and its significance remains uncertain. Subsequent chemotherapy after stenting should be considered, as it is expected to prolong patient survival without increasing the risk of adverse events. Furthermore, it may be helpful in preventing tumor ingrowth. In cases with GOO combined with biliary obstruction, biliary intervention is often difficult. Recently, endoscopic ultrasound-guided biliary drainage (EUS-BD) has been widely used as an alternative procedure for endoscopic transpapillary biliary drainage (ETBD). Despite the lack of consensus as to whether ETBD or EUS-BD is preferred, EUS-BD is useful as a salvage technique for cases where ETBD is difficult. To perform stent placement successfully, it is important to pay attention to the above points; however, many remaining issues need to be clarified in the future.
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