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Lee MH, Jung K, Kim JH, Kim SE, Moon W, Park MI, Park SJ. Case of Concomitant Endoscopic Treatment of Achalasia with Superficial Esophageal Cancer. THE KOREAN JOURNAL OF GASTROENTEROLOGY = TAEHAN SOHWAGI HAKHOE CHI 2023; 82:248-253. [PMID: 37997221 DOI: 10.4166/kjg.2023.099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/25/2023] [Accepted: 10/09/2023] [Indexed: 11/25/2023]
Abstract
Achalasia, a rare motility disorder of the esophagus, is generally accepted as a premalignant disorder. This paper presents the case of a 72-year-old male with achalasia and synchronous superficial esophageal cancer who experienced dysphagia symptoms for five years. As achalasia is associated with an increased risk of esophageal cancer, both can be treated simultaneously if detected at the time of diagnosis. Achalasia and synchronous esophageal cancer are rarely detected and treated endoscopically. This paper reports a case of concurrent successful treatment.
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Affiliation(s)
- Myung-Hun Lee
- Department of Internal Medicine, Kosin University College of Medicine, Busan, Korea
| | - Kyoungwon Jung
- Department of Internal Medicine, Kosin University College of Medicine, Busan, Korea
| | - Jae Hyun Kim
- Department of Internal Medicine, Kosin University College of Medicine, Busan, Korea
| | - Sung Eun Kim
- Department of Internal Medicine, Kosin University College of Medicine, Busan, Korea
| | - Won Moon
- Department of Internal Medicine, Kosin University College of Medicine, Busan, Korea
| | - Moo In Park
- Department of Internal Medicine, Kosin University College of Medicine, Busan, Korea
| | - Seun Ja Park
- Department of Internal Medicine, Kosin University College of Medicine, Busan, Korea
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Triadafilopoulos G, Mashimo H, Tatum R, O'Clarke J, Hawn M. Mixed Esophageal Disease (MED): A New Concept. Dig Dis Sci 2023; 68:3542-3554. [PMID: 37470896 DOI: 10.1007/s10620-023-08008-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 06/15/2023] [Indexed: 07/21/2023]
Abstract
We define mixed esophageal disease (MED) as a disorder of esophageal structure and/or function that produces variable signs or symptoms, simulating-fully or in part other well-defined esophageal conditions, such as gastroesophageal reflux disease, esophageal motility disorders, or even neoplasia. The central premise of the MED concept is that of an overlap syndrome that incorporates selected clinical, endoscopic, imaging, and functional features that alter the patient's quality of life and affect natural history, prognosis, and management. In this article, we highlight MED scenarios frequently encountered in medico-surgical practices worldwide, posing new diagnostic and therapeutic challenges. These, in turn, emphasize the need for better understanding and management, aiming towards improved outcomes and prognosis. Since MED has variable and sometimes time-evolving clinical phenotypes, it deserves proper recognition, definition, and collaborative, multidisciplinary approach, be it pharmacologic, endoscopic, or surgical, to optimize therapeutic outcomes, while minimizing iatrogenic complications. In this regard, it is best to define MED early in the process, preferably by teams of clinicians with expertise in managing esophageal diseases. MED is complex enough that is increasingly becoming the subject of virtual, multi-disciplinary, multi-institutional meetings.
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Affiliation(s)
- George Triadafilopoulos
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, CA, 94305, USA.
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, 430 Broadway Street 3rd floor, MC6341, Redwood City, CA, 94063, USA.
| | - Hiroshi Mashimo
- Section of Gastroenterology, Harvard Medical School, VA Boston Healthcare - Roxbury, 1400 VFW Pkwy, West Roxbury, MA, 02132, USA
| | - Roger Tatum
- Department of General Surgery, University of Washington, 1660 S. Columbian Way, Seattle, WA, 98108, USA
| | - John O'Clarke
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Mary Hawn
- Department of Surgery, Stanford University School of Medicine, Stanford, CA, 94305, USA
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An BQ, Wang CX, Zhang HY, Fu JD. Early esophageal carcinomas in achalasia patient after endoscopic submucosal dissection combined with peroral endoscopic myotomy: A case report. World J Clin Cases 2023; 11:5407-5411. [PMID: 37621585 PMCID: PMC10445071 DOI: 10.12998/wjcc.v11.i22.5407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 06/27/2023] [Accepted: 07/17/2023] [Indexed: 08/04/2023] Open
Abstract
BACKGROUND Achalasia is associated with high risk of esophageal carcinoma. However, the optimal endoscopic surgery for patients with early esophageal carcinoma concomitant with achalasia remains unclear. CASE SUMMARY A combination of concurrent endoscopic submucosal dissection (ESD) and modified peroral endoscopic myotomy (POEM) was performed on a 62-year-old male, who presented with multiple early esophageal carcinomas concomitant with achalasia. The patient exhibited an improvement in feeding obstruction, and presented no evidence of disease during the 3-year follow-up. CONCLUSION The combination of ESD and POEM is a feasible treatment modality for patients with early esophageal carcinoma concomitant with achalasia.
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Affiliation(s)
- Bai-Quan An
- Department of Gastroenterology, People’s Hospital of Rizhao, Rizhao 276800, Shandong Province, China
| | - Chun-Xiao Wang
- Department of Hematology, People’s Hospital of Rizhao, Rizhao 276800, Shandong Province, China
| | - Hai-Yan Zhang
- Department of Gastroenterology, People’s Hospital of Rizhao, Rizhao 276800, Shandong Province, China
| | - Jin-Dong Fu
- Department of Gastroenterology, People’s Hospital of Rizhao, Rizhao 276800, Shandong Province, China
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An BQ, Wang CX, Zhang HY, Fu JD. Early esophageal carcinomas in achalasia patient after endoscopic submucosal dissection combined with peroral endoscopic myotomy: A case report. World J Clin Cases 2023; 11:5401-5405. [DOI: 10.12998/wjcc.v11.i22.5401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 06/27/2023] [Accepted: 07/17/2023] [Indexed: 08/03/2023] Open
Abstract
BACKGROUND Achalasia is associated with high risk of esophageal carcinoma. However, the optimal endoscopic surgery for patients with early esophageal carcinoma concomitant with achalasia remains unclear.
CASE SUMMARY A combination of concurrent endoscopic submucosal dissection (ESD) and modified peroral endoscopic myotomy (POEM) was performed on a 62-year-old male, who presented with multiple early esophageal carcinomas concomitant with achalasia. The patient exhibited an improvement in feeding obstruction, and presented no evidence of disease during the 3-year follow-up.
CONCLUSION The combination of ESD and POEM is a feasible treatment modality for patients with early esophageal carcinoma concomitant with achalasia.
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Affiliation(s)
- Bai-Quan An
- Department of Gastroenterology, People’s Hospital of Rizhao, Rizhao 276800, Shandong Province, China
| | - Chun-Xiao Wang
- Department of Hematology, People’s Hospital of Rizhao, Rizhao 276800, Shandong Province, China
| | - Hai-Yan Zhang
- Department of Gastroenterology, People’s Hospital of Rizhao, Rizhao 276800, Shandong Province, China
| | - Jin-Dong Fu
- Department of Gastroenterology, People’s Hospital of Rizhao, Rizhao 276800, Shandong Province, China
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Nakamura J, Sato H, Onimaru M, Abe H, Shiwaku H, Shiota J, Sato C, Sakae H, Ominami M, Hata Y, Fukuda H, Ogawa R, Tatsuta T, Ikebuchi Y, Yokomichi H, Takuto H, Inoue H. Efficacy of peroral endoscopic myotomy for esophageal motility disorders after gastric surgery: Japan Achalasia Multicenter Study. Dig Endosc 2022; 34:1394-1402. [PMID: 35656635 DOI: 10.1111/den.14369] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/31/2022] [Indexed: 02/08/2023]
Abstract
OBJECTIVES Patients with esophageal motility disorders (EMDs) including achalasia after gastric surgery have not been thoroughly characterized. Furthermore, the efficacy of peroral endoscopic myotomy (POEM) in this population should be clarified. METHODS In this retrospective multicenter study of 3707 patients with EMDs, 31 patients (0.8%) had a history of gastric surgery. Patient characteristics and POEM efficacy were compared between patients with and without previous gastric surgery. RESULTS In patients with EMD after gastric surgery, age at EMD diagnosis was higher (72.0 years), male sex was predominant (90.3%), and the American Society of Anesthesiologists physical status score was higher (≥II, 48.4%). High-resolution manometry (HRM) findings did not reveal significant differences. In patients who underwent gastric surgery, atrophic gastritis was common (80.6%), and gastric cancer was the primary surgical indication (32.3%). Distal gastrectomy was performed in 28 patients (90.3%). POEM was effective (3.3% adverse events; 100% treatment success). The incidence rates of reflux esophagitis (RE) and symptomatic gastroesophageal reflux disease (GERD) were 60.0% and 16.7%, respectively, without significant intergroup differences, and severe RE was not observed in the long-term follow-up. Extended gastric myotomy was a risk factor for RE. CONCLUSION Patients with gastric surgery often present severe disease manifestations; the surgical indication is mainly gastric cancer. HRM findings can be similarly used for diagnosis in patients with and without gastric surgery. POEM maintains safety and efficacy with acceptable RE and symptomatic GERD rates. To prevent RE, extended myotomy should be avoided.
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Affiliation(s)
- Jun Nakamura
- Department of Endoscopy, Fukushima Medical University Hospital, Fukushima, Japan
| | - Hiroki Sato
- Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan.,Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, USA
| | - Manabu Onimaru
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Hirofumi Abe
- Department of Gastroenterology, Kobe University Hospital, Hyogo, Japan
| | - Hironari Shiwaku
- Department of Gastroenterological Surgery, Fukuoka University Faculty of Medicine, Fukuoka, Japan
| | - Junya Shiota
- Department of Gastroenterology and Hepatology, Nagasaki University Hospital, Nagasaki, Japan
| | - Chiaki Sato
- Department of Surgery, Tohoku University School of Medicine, Miyagi, Japan
| | - Hiroyuki Sakae
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Masaki Ominami
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Yoshitaka Hata
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hisashi Fukuda
- Division of Gastroenterology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Ryo Ogawa
- Department of Gastroenterology, Faculty of Medicine, Oita University, Oita, Japan
| | - Tetsuya Tatsuta
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Aomori, Japan
| | - Yuichiro Ikebuchi
- Division of Gastroenterology and Nephrology, Department of Multidisciplinary Internal Medicine, Faculty of Medicine, Tottori University, Tottori, Japan
| | - Hiroshi Yokomichi
- Department of Health Sciences, University of Yamanashi, Yamanashi, Japan
| | - Hikichi Takuto
- Department of Endoscopy, Fukushima Medical University Hospital, Fukushima, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
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Tatsuta T, Sato H, Fujiyoshi Y, Abe H, Shiwaku A, Shiota J, Sato C, Ominami M, Hata Y, Fukuda H, Ogawa R, Nakamura J, Ikebuchi Y, Yokomichi H, Fukuda S, Inoue H. Subtype of Achalasia and Integrated Relaxation Pressure Measured Using the Starlet High-resolution Manometry System: A Multicenter Study in Japan. J Neurogastroenterol Motil 2022; 28:562-571. [PMID: 36250363 PMCID: PMC9577579 DOI: 10.5056/jnm21254] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 04/25/2022] [Indexed: 11/25/2022] Open
Abstract
Background/Aims ManoScan and Sandhill high-resolution manometry (HRM) systems are used worldwide; however, the diagnosis of achalasia on the Starlet HRM system is not fully characterized. Furthermore, the impact of calcium channel blockers and nitrites in treating achalasia has not been investigated using HRM. Management of recurrent cases is a priority issue, although few studies have examined patient characteristics. Methods We conducted a multicenter, large-scale database analysis. First, the diagnosis of treatment-naive achalasia in each HRM system was investigated. Next, patient characteristics were compared between type I-III achalasia, and the impact of patient characteristics, including calcium channel blocker and nitrite use for integrated relaxation pressure (IRP) values, were analyzed. Finally, patient characteristics with recurrent achalasia were elucidated. Results The frequency of type I achalasia with Starlet was significantly higher than that with ManoScan and Sandhill HRM systems. In achalasia, multivariate analysis identified male sex, advanced age, long disease duration, obesity, type I achalasia, and sigmoid type as risk factors related to normal IRP values (< 26 mmHg). Calcium channel blockers and nitrites use had no significant impact on the IRP values, although achalasia symptoms were indicated to be alleviated. In recurrent cases, the IRP value was significantly lower, and advanced age, long disease duration, and sigmoid type were more common than in treatment-naive patients. Conclusions We should cautiously interpret the type of achalasia and IRP values in the Starlet HRM system. Symptoms of recurrent cases are related to disease progression rather than IRP values, which should be considered in decision making.
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Affiliation(s)
- Tetsuya Tatsuta
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Aomori, Japan
| | - Hiroki Sato
- Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan.,Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, OH, USA
| | - Yusuke Fujiyoshi
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | - Hirofumi Abe
- Department of Gastroenterology, Kobe University Hospital, Kobe, Japan
| | - Akio Shiwaku
- Department of Gastroenterological Surgery, Fukuoka University Faculty of Medicine, Fukuoka, Japan
| | - Junya Shiota
- Department of Gastroenterology and Hepatology, Nagasaki University Hospital, Nagasaki, Japan
| | - Chiaki Sato
- Division of Advanced Surgical Science and Technology, Tohoku University School of Medicine, Sendai, Japan
| | - Masaki Ominami
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Yoshitaka Hata
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hisashi Fukuda
- Division of Gastroenterology, Department of Medicine, Jichi Medical University, Shimotsuke, Japan
| | - Ryo Ogawa
- Department of Gastroenterology, Faculty of Medicine, Oita University, Oita, Japan
| | - Jun Nakamura
- Department of Endoscopy, Fukushima Medical University Hospital, Fukushima, Japan
| | - Yuichiro Ikebuchi
- Division of Gastroenterology and Nephrology, Department of Multidisciplinary Internal Medicine Tottori University Faculty of Medicine, Yonago, Japan
| | - Hiroshi Yokomichi
- Department of Health Sciences, University of Yamanashi, Yamanashi, Japan
| | - Shinsaku Fukuda
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Aomori, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
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Sato H, Shimamura Y, Tanaka S, Shiwaku H, Minami H, Sato C, Ogawa R, Inoue H. Reply: Need for evidence on surveillance endoscopy in achalasia-related Barret esophagus and adenocarcinoma in Asian population. J Gastroenterol 2022; 57:813-814. [PMID: 36001161 DOI: 10.1007/s00535-022-01917-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 08/16/2022] [Indexed: 02/04/2023]
Affiliation(s)
- Hiroki Sato
- Division of Gastroenterology & Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, 757-1, Asahimachidori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan. .,Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, USA.
| | - Yuto Shimamura
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
| | - Shinwa Tanaka
- Department of Gastroenterology, Kobe University Hospital, Kobe, Japan
| | - Hironari Shiwaku
- Department of Gastroenterological Surgery, Fukuoka University Faculty of Medicine, Fukuoka, Japan
| | - Hitomi Minami
- Department of Gastroenterology & Hepatology, Nagasaki University Hospital, Nagasaki, Japan
| | - Chiaki Sato
- Division of Advanced Surgical Science and Technology, Tohoku University School of Medicine, Sendai, Japan
| | - Ryo Ogawa
- Department of Gastroenterology, Faculty of Medicine, Oita University, Oita, Japan
| | - Haruhiro Inoue
- Digestive Diseases Center, Showa University Koto-Toyosu Hospital, Tokyo, Japan
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Risks of refractory chest pain after peroral endoscopic myotomy in achalasia-related esophageal motility disorders: short-term results from a multicenter study in Japan. Gastrointest Endosc 2022; 96:620-629.e4. [PMID: 35568241 DOI: 10.1016/j.gie.2022.04.1347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 04/30/2022] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS The etiology of chest pain in achalasia-related esophageal motility disorders and the frequency and risk factors of persistent chest pain after peroral endoscopic myotomy (POEM) remain unclear. METHODS A multicenter cohort study including 14 hospitals was conducted to elucidate the characteristics of patients with chest pain and the efficacy of POEM. RESULTS Consecutive cases of achalasia-related esophageal motility disorders included 2294 (64.2%) and 1280 (35.8%) patients with and without chest pain, respectively. Among the 2107 patients with chest pain who underwent POEM, we observed complete remission in 1464 patients (69.5%) and nonremission in 643 patients (30.5%), including a partial response in 619 patients (29.4%) and resistance in 24 patients (1.1%). Multivariate analysis revealed that advanced age (odds ratio [OR], .28), male sex (OR, .70), prior treatment (OR, 1.39), and sigmoid type (OR, .65) were related to the prevalence of chest pain. Long disease duration (OR, .69) and esophageal dilation (OR, .79) were related to decreased severity. POEM improved patients' quality of life that was hindered by chest pain. Early onset (OR, 1.45), advanced age (OR, .58), male sex (OR, .79), prior treatment (OR, 1.37), and posterior myotomy (OR, 1.42) were associated with nonremission after POEM; high-resolution manometry (HRM) findings and myotomy length showed no statistical significance on pain etiology and persistence after POEM. CONCLUSIONS The prevalence and severity of chest pain were dependent on age, sex, disease duration, prior treatment, and esophageal morphology rather than HRM findings. The efficacy of POEM is satisfactory; however, residual pain was often observed. Excessively long myotomy can be avoided, and anterior myotomy may be recommended.
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Xia H, Peng Y, Tang X. Is it necessary for endoscopic surveillance for achalasia patients? J Gastroenterol 2022; 57:812. [PMID: 36001160 DOI: 10.1007/s00535-022-01916-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Accepted: 08/16/2022] [Indexed: 02/05/2023]
Affiliation(s)
- Huifang Xia
- Department of Gastroenterology, Affiliated Hospital of Southwest Medical University, Street Taiping No.25, Region Jiangyang, Luzhou, 646099, Sichuan Province, China
| | - Yan Peng
- Department of Gastroenterology, Affiliated Hospital of Southwest Medical University, Street Taiping No.25, Region Jiangyang, Luzhou, 646099, Sichuan Province, China
| | - Xiaowei Tang
- Department of Gastroenterology, Affiliated Hospital of Southwest Medical University, Street Taiping No.25, Region Jiangyang, Luzhou, 646099, Sichuan Province, China.
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Local palliative therapies for unresectable malignant biliary obstruction: radiofrequency ablation combined with stent or biliary stent alone? An updated meta-analysis of nineteen trials. Surg Endosc 2022; 36:5559-5570. [PMID: 35296949 DOI: 10.1007/s00464-022-09181-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 02/27/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND Recently, there has been a burgeoning interest in radiofrequency ablation combined with stent (RFA + Stent) for unresectable malignant biliary obstruction (MBO). This study aimed to perform a meta-analysis to evaluate the efficacy and safety of RFA + Stent compared with biliary stent alone. METHODS We searched PubMed, Cochrane Library, Embase, and Web of Science databases from their inception dates to June 20, 2021, for studies that compared RFA + Stent and stent alone for unresectable MBO. The main outcomes were survival, patency, and adverse effects. All meta-analyses were calculated using the random-effects model. RESULTS A total of 19 studies involving 1946 patients were included in this study. Compared with stent alone, RFA + Stent was significantly associated with better overall survival (HR 0.55; 95% CI 0.48, 0.63; P < 0.00001), longer mean survival time (SMD 2.20; 95% CI 1.17, 3.22; P < 0.0001), longer mean stent patency time (SMD 1.37; 95% CI 0.47, 2.26; P = 0.003), higher stent patency at 6 months (OR 2.82; 95% CI 1.54, 5.18; P = 0.0008). The two interventions had similar incidence of postoperative abdominal pain (OR 1.29; 95% CI 0.94, 1.78; P = 0.11), mild bleeding (OR 1.28; 95% CI 0.65, 2.54; P = 0.48), cholangitis (OR 1.09; 95% CI 0.76, 1.55; P = 0.65), pancreatitis (OR 1.39; 95% CI 0.82, 2.38; P = 0.22). Furthermore, the serum bilirubin levels and stricture diameter after operations were significantly alleviated than before operations, but the degree of alleviation between the two groups were not significantly different (all P > 0.05). CONCLUSION Although the alleviation of serum bilirubin and stricture diameter did not differ between the two interventions, RFA + Stent can significantly improve the survival and stent patency with comparable procedure-related adverse events than stent alone. Thus, RFA + Stent should be recommended as an attractive alternative to biliary stent alone for patients with unresectable MBO.
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