1
|
Norton BC, Papaefthymiou A, Aslam N, Telese A, Murray C, Murino A, Johnson G, Haidry R. The endoscopic management of oesophageal strictures. Best Pract Res Clin Gastroenterol 2024; 69:101899. [PMID: 38749578 DOI: 10.1016/j.bpg.2024.101899] [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: 12/04/2023] [Revised: 02/04/2024] [Accepted: 02/25/2024] [Indexed: 05/26/2024]
Abstract
An oesophageal stricture refers to a narrowing of the oesophageal lumen, which may be benign or malignant. The cardinal feature is dysphagia, and this may result from intrinsic oesophageal disease or extrinsic compression. Oesophageal strictures can be further classified as simple or complex depending on stricture length, location, diameter, and underlying aetiology. Many endoscopic options are now available for treating oesophageal strictures including dilatation, injectional therapy, stenting, stricturotomy, and ablation. Self-expanding metal stents have revolutionised the palliation of malignant dysphagia, but oesophageal dilatation with balloon or bougienage remains first-line therapy for most benign strictures. The increase in endoscopic and surgical interventions on the oesophagus has seen more benign refractory oesophageal strictures that are difficult to treat, and often require advanced endoscopic techniques. In this review, we provide a practical overview on the evidence-based management of both benign and malignant oesophageal strictures, including a practical algorithm for managing benign refractory strictures.
Collapse
Affiliation(s)
- Benjamin Charles Norton
- Department of Gastroenterology, Digestive Diseases and Surgery Institute, Cleveland Clinic London, 33 Grosvenor Place, London, SW1X 7HY, UK; Centre for Obesity Research, Department of Medicine, University College London, Rayne Institute, 5 University St, London, WC1E 6JF, UK.
| | - Apostolis Papaefthymiou
- Department of Gastroenterology, Digestive Diseases and Surgery Institute, Cleveland Clinic London, 33 Grosvenor Place, London, SW1X 7HY, UK
| | - Nasar Aslam
- Department of Gastroenterology, University College London Hospital, 235 Euston Road, London, NW1 2BU, UK
| | - Andrea Telese
- Department of Gastroenterology, Digestive Diseases and Surgery Institute, Cleveland Clinic London, 33 Grosvenor Place, London, SW1X 7HY, UK; Division of Surgery and Interventional Science, University College London, Royal Free Hospital, 10 Pond Street, London, NW3 2PS, UK
| | - Charles Murray
- Department of Gastroenterology, Digestive Diseases and Surgery Institute, Cleveland Clinic London, 33 Grosvenor Place, London, SW1X 7HY, UK
| | - Alberto Murino
- Department of Gastroenterology, Digestive Diseases and Surgery Institute, Cleveland Clinic London, 33 Grosvenor Place, London, SW1X 7HY, UK
| | - Gavin Johnson
- Department of Gastroenterology, Digestive Diseases and Surgery Institute, Cleveland Clinic London, 33 Grosvenor Place, London, SW1X 7HY, UK
| | - Rehan Haidry
- Department of Gastroenterology, Digestive Diseases and Surgery Institute, Cleveland Clinic London, 33 Grosvenor Place, London, SW1X 7HY, UK
| |
Collapse
|
2
|
Arntz S, Roller L. Delayed bronchial obstruction following esophageal stent placement: A case report and review of the literature. Radiol Case Rep 2023; 18:3113-3116. [PMID: 37416321 PMCID: PMC10319639 DOI: 10.1016/j.radcr.2023.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/28/2023] [Accepted: 06/02/2023] [Indexed: 07/08/2023] Open
Abstract
Esophageal adenocarcinoma typically has a poor prognosis at the time of diagnosis. Consequently, palliation of symptoms is vital to disease management with a cornerstone for palliation being esophageal stent placement. Esophageal stents are associated with a variety of complications that may present immediately or long after stent placement is completed. In this report, we present a 58-year-old male who developed shortness of breath 4 months after metallic esophageal stent placement. After further evaluation with a chest radiograph and CT angiogram of the chest, the patient was found to have obstruction of the left mainstem bronchus secondary to mass effect from the esophageal stent. Airway compromise secondary to metallic esophageal stent placement typically occurs immediately after placement of the stent. There are only a few documented cases of this complication occurring at a delayed interval. This case clearly demonstrates this rare complication of esophageal stent placement in the setting of esophageal adenocarcinoma.
Collapse
|
3
|
Sasso JGRJ, de Moura DTH, Proença IM, Junior ESDM, Ribeiro IB, Sánchez-Luna SA, Cheng S, Bestetti AM, Kum AST, Bernardo WM, de Moura EGH. Anti-reflux versus conventional self-expanding metal stents in the palliation of esophageal cancer: A systematic review and meta-analysis. Endosc Int Open 2022; 10:E1406-E1416. [PMID: 36262514 PMCID: PMC9576338 DOI: 10.1055/a-1894-0914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 07/05/2022] [Indexed: 11/09/2022] Open
Abstract
Background and study aims Self-expanding metal stents (SEMS) are an effective palliative endoscopic therapy to reduce dysphagia in esophageal cancer. Gastroesophageal reflux disease (GERD) is a relatively common complaint after non-valved conventional SEMS placement. Therefore, valved self-expanding metal stents (SEMS-V) were designed to reduce the rate of GERD symptoms. We aimed to perform a systematic review and meta-analysis comparing the two stents. Material and methods This was a systematic review and meta-analysis including only randomized clinical trials (RCT) comparing the outcomes between SEMS-V and non-valved self-expanding metal stents (SEMS-NV) following the Preferred Reporting Items for Systematic Reviews and Meta-analysis guidelines. The risk of bias was assessed using the Cochrane Risk of Bias 2 tool. Data were analyzed with Review Manager Software. Quality of evidence was evaluated using Grading of Recommendations Assessment, Development, and Evaluation guidelines. Results Ten randomized clinical trials including a total of 467 patients, 234 in the SEMS-V group and 233 in the SEMS-NV group, were included. There were no statistically significant differences regarding GERD qualitative analysis (RD -0.17; 95 % CI -0.67, 0.33; P = 0.5) and quantitative analysis (SMD -0.22; 95 % CI -0.53, 0.08; P = 0.15) technical success (RD -0.03; 95 % CI -0.07, 0.01; P = 0.16), dysphagia improvement (RD -0.07; 95 % CI -0.19, 0.06; P = 0.30), and adverse events (RD 0.07; 95 % CI -0.07, 0.20; P = 0.32). Conclusions Both SEMS-V and SEMS-NV are safe and effective in the palliation of esophageal cancer with similar rates of GERD, dysphagia relief, technical success, adverse events, stent migration, stent obstruction, bleeding, and improvement of the quality of life.
Collapse
Affiliation(s)
- João Guilherme Ribeiro Jordão Sasso
- Serviço de Endoscopia Gastrointestinal, Departamento de Gastroenterologia, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Diogo Turiani Hourneaux de Moura
- Serviço de Endoscopia Gastrointestinal, Departamento de Gastroenterologia, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Igor Mendonça Proença
- Serviço de Endoscopia Gastrointestinal, Departamento de Gastroenterologia, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Epifânio Silvino do Monte Junior
- Serviço de Endoscopia Gastrointestinal, Departamento de Gastroenterologia, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Igor Braga Ribeiro
- Serviço de Endoscopia Gastrointestinal, Departamento de Gastroenterologia, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Sergio A. Sánchez-Luna
- Basil I. Hirschowitz Endoscopic Center of Excellence, Division of Gastroenterology and Hepatology, Department of Internal Medicine, The University of Alabama at Birmingham Heersink School of Medicine, Birmingham, Alabama, United States
| | - Spencer Cheng
- Serviço de Endoscopia Gastrointestinal, Departamento de Gastroenterologia, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Alexandre Moraes Bestetti
- Serviço de Endoscopia Gastrointestinal, Departamento de Gastroenterologia, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Angelo So Taa Kum
- Serviço de Endoscopia Gastrointestinal, Departamento de Gastroenterologia, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Wanderley Marques Bernardo
- Serviço de Endoscopia Gastrointestinal, Departamento de Gastroenterologia, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Eduardo Guimarães Hourneaux de Moura
- Serviço de Endoscopia Gastrointestinal, Departamento de Gastroenterologia, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
| |
Collapse
|
4
|
Kamarajah SK, Bundred J, Spence G, Kennedy A, Dasari BVM, Griffiths EA. Critical Appraisal of the Impact of Oesophageal Stents in the Management of Oesophageal Anastomotic Leaks and Benign Oesophageal Perforations: An Updated Systematic Review. World J Surg 2020; 44:1173-1189. [PMID: 31686158 DOI: 10.1007/s00268-019-05259-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Endoscopic placement of oesophageal stents may be used in benign oesophageal perforation and oesophageal anastomotic leakage to control sepsis and reduce mortality and morbidity by avoiding thoracotomy. This updated systematic review aimed to assess the safety and effectiveness of oesophageal stents in these two scenarios. METHODS A systematic literature search of all published studies reporting use of metallic and plastic stents in the management of post-operative anastomotic leaks, spontaneous and iatrogenic oesophageal perforations were identified. Primary outcomes were technical (deploying ≥ 1 stent to occlude site of leakage with no evidence of leakage of contrast within 24-48 h) and clinical success (complete healing of perforation or leakage by placement of single or multiple stents irrespective of whether the stent was left in situ or was removed). Secondary outcomes were stent migration, perforation and erosion, and mortality rates. Subgroup analysis was performed for plastic versus metallic stents and anastomotic leaks versus perforations separately. RESULTS A total of 66 studies (n = 1752 patients) were included. Technical and clinical success rates were 96% and 87%, respectively. Plastic stents had significantly higher migration rates (24% vs 16%, p = 0.001) and repositioning (11% vs 3%, p < 0.001) and lower technical success (91% vs 95%, p = 0.032) than metallic stents. In patients with anastomotic leaks, plastic stents were associated with higher stent migration (26% vs 15%, p = 0.034), perforation (2% vs 0%, p = 0.013), repositioning (10% vs 0%, p < 0.001), and lower technical success (95% vs 100%, p = p = 0.002). In patients with perforations only, plastic stents were associated with significantly lower technical success (85% vs 99%, p < 0.001). CONCLUSIONS Covered metallic oesophageal stents appear to be more effective than plastic stents in the management of oesophageal perforation and anastomotic leakage. However, quality of evidence of generally poor and high-quality randomised trial is needed to further evaluate best management option for oesophageal perforation and anastomotic leakage.
Collapse
Affiliation(s)
- Sivesh K Kamarajah
- Department of Hepatobiliary, Pancreatic and Transplant Surgery, Freeman Hospital, Newcastle University NHS Foundation Trust Hospitals, Newcastle upon Tyne, UK
- Institute of Cellular Medicine, University of Newcastle, Newcastle upon Tyne, UK
| | - James Bundred
- College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Gary Spence
- Division of Gastroenterology and Surgery, Ulster Hospital, Belfast, Northern Ireland, UK
| | - Andrew Kennedy
- Department of Upper Gastro-Intestinal Surgery, Belfast City Hospital, Belfast Health and Social Care Trust, Belfast, UK
| | - Bobby V M Dasari
- Department of Hepatobiliary, Pancreatic and Transplant Surgery, Queen Elizabeth Hospital Birmingham, Birmingham, UK
| | - Ewen A Griffiths
- Department of Upper Gastrointestinal Surgery, University Hospitals Birmingham NHS Foundation Trust, Area 6, 7th Floor, Queen Elizabeth Hospital Birmingham, Mindelsohn Way, Edgbaston, Birmingham, B15 2WBUK, UK.
- Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.
| |
Collapse
|
5
|
Aloreidi K, Patel B, Ridgway T, Yeager T, Atiq M. Non-surgical management of Boerhaave's syndrome: a case series study and review of the literature. Endosc Int Open 2018; 6:E92-E97. [PMID: 29344568 PMCID: PMC5770272 DOI: 10.1055/s-0043-124075] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 08/31/2017] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND AND STUDY AIMS Boerhaave's syndrome (BS) is a life-threatening condition with morbidity and mortality rates as high as 50 % in some reports. Until recently, surgical intervention has been the mainstay of management plans. With advances in therapeutic endoscopy, however, there has been increasing interest in non-surgical options including endoscopic esophageal stenting. PATIENTS AND METHODS We reviewed the medical records of all patients diagnosed with BS and managed with endoscopic interventions between November 2011 and November 2016. The following variables were collected: patient demographics, clinical presentations, locations of esophageal perforation, primary interventions, complications, and outcomes. RESULTS Six patients were found to be diagnosed with BS during the study period. The median age at presentation was 55. There were 4 males and 2 females. The most common site of perforation was in the distal esophagus. The most common presenting symptom was chest pain (67 %) following an episode of vomiting or retching. Four patients (66.7 %) developed septic shock. Endoscopic treatment with a fully covered esophageal stent was the primary intervention in all patients (100 %). Interventional radiology was consulted in all cases for fluid drainage and chest tube placements. Clinical resolution of the BS was achieved in all patients (100 %) without any subsequent surgical interventions. There were no deaths within the study group, and the average follow-up duration was 2 years. CONCLUSION Endoscopic treatment seems to be an effective management strategy in patients with BS. We also noted satisfactory results in patients presenting with sepsis, presumably due to urgent, interventional radiology-guided fluid drainage.
Collapse
Affiliation(s)
- Khalil Aloreidi
- Department of Internal Medicine, University of South Dakota – Sanford School of Medicine, Sioux Falls, South Dakota, United States,Corresponding author Khalil Aloreidi Internal Medicine Residency programUniversity of South Dakota – Sanford School of Medicine1400 West 22nd Street Sioux Falls, SD 57105+1-605-357-1365
| | - Bhavesh Patel
- Department of Gastroenterology, University of South Dakota – Sanford School of Medicine, Sioux Falls, South Dakota, United States
| | - Tim Ridgway
- Department of Gastroenterology, University of South Dakota – Sanford School of Medicine, Sioux Falls, South Dakota, United States
| | - Terry Yeager
- Department of Interventional Radiology, University of South Dakota – Sanford School of Medicine, Sioux Falls, South Dakota, United States
| | - Muslim Atiq
- Department of Gastroenterology, University of South Dakota – Sanford School of Medicine, Sioux Falls, South Dakota, United States
| |
Collapse
|
6
|
Ramakrishnaiah VPN, Malage S, Sreenath GS, Kotlapati S, Cyriac S. Palliation of Dysphagia in Carcinoma Esophagus. CLINICAL MEDICINE INSIGHTS. GASTROENTEROLOGY 2016; 9:11-23. [PMID: 27279758 PMCID: PMC4896534 DOI: 10.4137/cgast.s30303] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 04/25/2016] [Accepted: 04/27/2016] [Indexed: 01/10/2023]
Abstract
Esophageal carcinoma has a special place in gastrointestinal carcinomas because it contains two main types, namely, squamous cell carcinoma and adenocarcinoma. Carcinoma esophagus patients require some form of palliation because of locally advanced stage or distant metastasis, where it cannot be subjected to curable treatment with surgery and chemoradiation. Many modalities of palliation of dysphagia are available, but the procedure with least morbidity, mortality, and long-term palliation of dysphagia needs to be chosen for the patient. This study aims to discuss the recent trends in palliation of dysphagia with promising results and the most suitable therapy for palliation of dysphagia in a given patient. A total of 64 articles that were published between years 2005 and 2015 on various modes of palliation of dysphagia in carcinoma esophagus were studied, which were mainly randomized and prospective studies. Through this study, we conclude that stents are the first choice of therapy for palliation, which is safe and cost-effective, and they can be combined with either radiotherapy or chemotherapy for long-term palliation of dysphagia with good quality of life. Radiotherapy can be used as a second-line treatment modality.
Collapse
Affiliation(s)
| | - Somanath Malage
- Senior Resident, Department of Surgery, Jawaharlal Institute of Postgraduation Medical Education & Research (JIPMER), Puducherry, India
| | - G S Sreenath
- Associate Professor, Department of Surgery, Jawaharlal Institute of Postgraduation Medical Education & Research (JIPMER), Puducherry, India
| | - Sudhakar Kotlapati
- Senior Resident, Department of Radiotherapy, Jawaharlal Institute of Postgraduation Medical Education & Research (JIPMER), Puducherry, India
| | - Sunu Cyriac
- Assistant Professor, Department of Medical Oncology, Jawaharlal Institute of Postgraduation Medical Education & Research (JIPMER), Puducherry, India
| |
Collapse
|
7
|
Park HS, Choo IW, Seo S, Hyun D, Lim S, Kim JJ, Hong SB, Min BH, Do YS, Choo SW, Shin SW, Park KB, Cho SK. A novel, ring-connected stent versus conventional GI stents: comparative study of physical properties and migration rates in a canine colon obstruction model. Gastrointest Endosc 2016; 81:1433-8. [PMID: 25660946 DOI: 10.1016/j.gie.2014.09.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Accepted: 09/15/2014] [Indexed: 12/12/2022]
Abstract
BACKGROUND Migration of stents is one of the most common adverse events in covered stent placement in GI tract obstruction. OBJECTIVE To compare physical property and migration rates in a canine colon obstruction model among a novel stent and conventional stents. DESIGN Comparative physical test and animal study. SETTING Medical device testing laboratory and animal laboratory. SUBJECTS Mongrel dogs (N=26). INTERVENTIONS Surgical colon obstruction followed by placement of a novel (n=13) or conventional (n=13) stent. MAIN OUTCOME MEASUREMENTS Physical properties, migration, and adverse events. RESULTS The novel stent showed better flexibility, as in a physical test of longitudinal compressibility and axial force, than did conventional stents, and it withstood the fatigue test for 10 days. In terms of radial force and tensile strength, the novel stent showed the same or better results than conventional stents. In a canine colon obstruction model, the migration rate of a novel stent was significantly lower than that of a conventional stent (2/13, 15.4% vs 8/13, 61.5%; P=.008). LIMITATIONS Animal study of limited size. CONCLUSION The novel, ring-connected stent is more flexible and more resistant to migration than the conventional stents.
Collapse
Affiliation(s)
- Hong Suk Park
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - In Wook Choo
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Soowon Seo
- Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu, Republic of Korea
| | - Dongho Hyun
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Sooyoun Lim
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Jae J Kim
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Saet-Byul Hong
- Laboratory Animal Research Center, Samsung Biomedical Research Institute, Seoul, Republic of Korea
| | - Byung-Hoon Min
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Young Soo Do
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Sung Wook Choo
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Sung Wook Shin
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Kwang Bo Park
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Sung Ki Cho
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| |
Collapse
|
8
|
The role of esophageal stents in the management of esophageal anastomotic leaks and benign esophageal perforations. Ann Surg 2014; 259:852-60. [PMID: 24509201 DOI: 10.1097/sla.0000000000000564] [Citation(s) in RCA: 187] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVE The aim of this review was to assess the safety and effectiveness of esophageal stents in the management of benign esophageal perforation and in the management of esophageal anastomotic leaks. BACKGROUND Benign esophageal perforation and postoperative esophageal anastomotic leak are often encountered. Endoscopic placement of esophageal stent across the site of leakage might help control the sepsis and reduce the mortality and morbidity. METHODS All the published case series reporting the use of metallic and plastic stents in the management of postoperative anastomotic leaks, spontaneous esophageal perforations, and iatrogenic esophageal perforations were identified from MEDLINE, EMBASE, and PubMed (1990-2012). Primary outcomes assessed were technical success rates and complete healing rates. Secondary outcomes assessed were stent migration rates, stent perforation rates, duration of hospital stay, time to stent removal, and mortality rates. A pooled analysis was performed and subgroup analysis was performed for plastic versus metallic stents and anastomotic leaks versus perforations separately. RESULTS A total of 27 case series with 340 patients were included. Technical and clinical success rates of stenting were 91% and 81%, respectively. Stent migration rates were significantly higher with plastic stents than with metallic stents (40/148 vs 13/117 patients, respectively; P = 0.001). Patients with metallic stents had significantly higher incidence of postprocedure strictures (P = 0.006). However, patients with plastic stents needed significantly higher number of reinterventions (P = 0.005). Mean postprocedure hospital stay varied from 8 days to 51 days. There was no significant difference in the primary or secondary outcomes when stenting was performed for anastomotic leaks or perforations. CONCLUSIONS Endoscopic management of esophageal anastomotic leaks and perforations with the use of esophageal stents is technically feasible. It seems to be safe and effective when performed along with mediastinal or pleural drainage. Esophageal stent can, therefore, be considered as a treatment option in the management of patients who present early after esophageal perforation or anastomotic leak with limited mediastinal or pleural contamination.
Collapse
|
9
|
Khara HS, Diehl DL, Gross SA. Esophageal stent fracture: Case report and review of the literature. World J Gastroenterol 2014; 20:2715-2720. [PMID: 24627608 PMCID: PMC3949281 DOI: 10.3748/wjg.v20.i10.2715] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Revised: 09/13/2013] [Accepted: 09/29/2013] [Indexed: 02/06/2023] Open
Abstract
Endoscopic esophageal stent placement is widely used in the treatment of a variety of benign and malignant esophageal conditions. Self expanding metal stents (SEMS) are associated with significantly reduced stent related mortality and morbidity compared to plastic stents for treatment of esophageal conditions; however they have known complications of stent migration, stent occlusion, tumor ingrowth, stricture formation, reflux, bleeding and perforation amongst others. A rare and infrequently reported complication of SEMS is stent fracture and subsequent migration of the broken pieces. There have only been a handful of published case reports describing this problem. In this report we describe a case of a spontaneously fractured nitinol esophageal SEMS, and review the available literature on the unusual occurrence of SEMS fracture placed for benign or malignant obstruction in the esophagus. SEMS fracture could be a potentially dangerous event and should be considered in a patient having recurrent dysphagia despite successful placement of an esophageal SEMS. It usually requires endoscopic therapy and may unfortunately require surgery for retrieval of a distally migrated fragment. Early recognition and prompt management may be able to prevent further problems.
Collapse
|
10
|
Abstract
Endoscopy has an ever-increasing role in the treatment of complications in digestive surgery. Endoscopic treatment is essentially used for (i) fistula or intra-abdominal collection secondary to anastomotic dehiscence and (ii) anastomotic stricture, especially esophagogastric, but also sometimes after colorectal surgery. First intention treatment of fistula following esophagogastric surgery is the insertion of an extractable self-expandable metallic stent (partially or entirely covered); this is supported by a low level of scientific evidence, but clinical experience has been satisfactory. Other techniques for treatment of anastomotic leak have also been reported anecdotally (clip placement, sealing with glue). There are few data available in the literature on endoscopic management (stents essentially) of postoperative colonic fistula. Whatever the approach chosen to treat a postoperative digestive tract fistula, management is medico-surgical and cannot be limited to simple closure of the digestive tube wall defect. Drainage of any collections by endoscopic, radiologic or surgical approach, systemic treatment of infection and nutritional support are essential adjuvant treatment modalities. Treatment of postoperative esophageal or colonic strictures is essentially endoscopic and is based on initial dilatation (endoscopic with hydrostatic balloon or bougie), and placement of extractable metallic stents (partially or entirely covered) in case of refractory outcome.
Collapse
Affiliation(s)
- X Dray
- Université Paris Diderot, Paris 7, AP-HP, Service d'Hépatogastroentérologie, Hôpital Lariboisière, 2, rue Ambroise-Paré, 75010 Paris, France.
| | | | | |
Collapse
|
11
|
Yang Z, Wu Q, Wang F, Ye X, Qi X, Fan D. A systematic review and meta-analysis of randomized trials and prospective studies comparing covered and bare self-expandable metal stents for the treatment of malignant obstruction in the digestive tract. Int J Med Sci 2013; 10:825-35. [PMID: 23794946 PMCID: PMC3689879 DOI: 10.7150/ijms.5969] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Accepted: 04/16/2013] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Self-expandable metal stents (SEMS) are widely used for the palliative treatment of malignant gastrointestinal obstruction. Our aim was to evaluate the evidence comparing covered and bare SEMS in the digestive tract using meta-analytical techniques. METHODS A literature search was performed using PubMed, Cochrane Library, and Embase databases for comparative studies assessing the two types of stents. The primary outcomes of interest were stent patency and patient survival; second outcomes included technical success, clinical success, tumor ingrowth, tumor overgrowth, and stent migration. A random-effects model was conducted. Pooled analysis was done separately based on the different segments of the digestive tract. RESULTS Eleven studies (8 randomized controlled trials and 3 prospective cohort studies) including a total of 1376 patients were identified. Covered SEMS were equivalent to bare SEMS in terms of technical success, clinical success, stent patency (gastroduodenal obstruction: HR =0.87, 95% CI 0.53-1.42; colorectal obstruction: HR =0.89, 95% CI 0.18-4.45; biliary obstruction: HR =0.73, 95% CI 0.41-1.32) and survival rates (esophageal obstruction: HR =1.80, 95% CI 0.73-4.44; gastroduodenal obstruction: HR =0.83, 95% CI 0.55-1.26; biliary obstruction: HR =0.99, 95% CI 0.77-1.28), although bare stents were more prone to tumor ingrowth (esophageal obstruction: RR =0.10, 95% CI 0.01-0.77; gastroduodenal obstruction: RR =0.12, 95% CI 0.03-0.55; colorectal obstruction: RR =0.21, 95% CI 0.06-0.70; biliary obstruction: RR =0.21, 95% CI 0.06-0.69), whereas covered stents had the higher risk of stent migration (gastroduodenal obstruction: RR =5.01, 95% CI 1.53-16.43; colorectal obstruction: RR =11.70, 95% CI 2.84-48.27; biliary obstruction: RR =8.11, 95% CI 1.47-44.76) and tumor overgrowth (biliary obstruction: RR =2.03, 95% CI 1.08-3.78). CONCLUSION Both covered and bare SEMS are comparable in efficacy for the palliative treatment of malignant obstruction in the digestive tract. Each type of the stents has its own merit and demerit relatively.
Collapse
Affiliation(s)
- Zhiping Yang
- 1. Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Qiong Wu
- 1. Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Fang Wang
- 2. Department of Gastroenterology, Affiliated Hospital of Ningxia Medical University, Yinchuan, China
| | - Xiaofei Ye
- 3. Department of Health Statistics, Second Military Medical University, Shanghai, China
| | - Xingshun Qi
- 1. Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Daiming Fan
- 1. Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
- ✉ Corresponding author: Daiming Fan, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 127 West Changle Road, Xi'an 710032, China. Tel: 86-29-84771501; Fax: 86-29-82539041; E-mail:
| |
Collapse
|
12
|
Donatelli G, Dhumane P, Perretta S, Dallemagne B, Vix M, Mutter D, Dritsas S, Doffoel M, Marescaux J. Endoscopic placement of fully covered self expanding metal stents for management of post-operative foregut leaks. J Minim Access Surg 2012; 8:118-24. [PMID: 23248437 PMCID: PMC3523447 DOI: 10.4103/0972-9941.103109] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2011] [Accepted: 12/07/2011] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND: Fully covered self-expanding metal stent (SEMS) placement has been successfully described for the treatment of malignant and benign conditions. The aim of this study is to evaluate our experience of fully covered SEMS placement for post-operative foregut leaks. MATERIALS AND METHODS: Retrospective analysis was done for indications, outcomes and complications of SEMS placed in homogeneous population of 15 patients with post-operative foregut leaks in our tertiary-care centre from December 2008 to December 2010. Stent placement and removal, clinical and radiological evidence of leak healing, migration and other complications were the main outcomes analyzed. RESULTS: Twenty-three HANAROSTENT® SEMS were successfully placed in 14/15 patients (93%) with post-operative foregut leaks for an average duration of 28.73 days (range=1-42 days) per patient and 18.73 days per SEMS. Three (20%) patients needed to be re-stented for persistent leaks ultimately resulting in leak closure. Total 5/15 (33.33%) patients and 7/23 (30.43%) stents showed migration; 5/7 (71.42%) migrated stents could be retrieved endoscopically. There were mucosal ulceration in 2/15 (13.33%) and pain in 1/15 (6.66%) patients. CONCLUSIONS: Stenting with SEMS seems to be a feasible option as a primary care modality for patients with post-operative foregut leaks.
Collapse
Affiliation(s)
- Gianfranco Donatelli
- IRCAD/EITS, Department of Gastrointestinal and Endocrinal Surgery, University of Strasbourg, Strasbourg, France
| | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Pollard RE. Imaging evaluation of dogs and cats with Dysphagia. ISRN VETERINARY SCIENCE 2012; 2012:238505. [PMID: 23762579 PMCID: PMC3671744 DOI: 10.5402/2012/238505] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2012] [Accepted: 09/19/2012] [Indexed: 01/20/2023]
Abstract
The current literature is reviewed in this paper regarding the application of diagnostic imaging in the evaluation of swallowing disorders of the dog. The applications of radiography, contrast radiography, and contrast videofluoroscopy are discussed with pertinent case examples provided for emphasis. The indications for image-guided interventions are also described.
Collapse
Affiliation(s)
- Rachel E Pollard
- Department of Surgical and Radiological Sciences, Davis School of Veterinary Medicine, The University of California, Davis, CA 95616, USA
| |
Collapse
|
14
|
Hansen KS, Weisse C, Berent AC, Dunn M, Caceres AV, Todd KL, Diroff JS. Use of a self-expanding metallic stent to palliate esophageal neoplastic obstruction in a dog. J Am Vet Med Assoc 2012; 240:1202-7. [DOI: 10.2460/javma.240.10.1202] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
15
|
Ferreira F, Bastos P, Ribeiro A, Marques M, Azevedo F, Pereira P, Lopes S, Ramalho R, Macedo G. A comparative study between fluoroscopic and endoscopic guidance in palliative esophageal stent placement. Dis Esophagus 2011; 25:608-13. [PMID: 22151881 DOI: 10.1111/j.1442-2050.2011.01288.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Self-expanding metallic stents (SEMS) are the treatment of choice for incurable obstructive malignant esophageal strictures. Although the placement of SEMS is usually performed with fluoroscopic control (FC), recently several authors have shown the feasibility of placing SEMS under endoscopic control alone (EC). However, studies comparing the two techniques are lacking. The objective of this study was to compare the feasibility and safety of SEMS insertion under fluoroscopic control and endoscopic control. The study was performed through the retrospective analysis of patients who underwent SEMS insertion for malignant dysphagia between January 2005 and January 2010. Data concerning early and late complications and survival were retrieved. Early complications were defined as pain, vomiting, bleeding, malposition/migration, perforation, and/or dysphagia occurring until 30 days of SEMS insertion; and late complications as tumor ingrowth and overgrowth, migration, hemorrhage, fistulae, food impaction, and/or esophagitis occurring after 30 days. We placed 126 SEMS of which 87% for esophageal stricture, 8% for esophagus-respiratory fistula, and 5% for extrinsic compression. The mean age of the patients was 62 years, and 93 were male. SEMS insertion was performed with FC in 66 patients and EC in 60. Early complications occurred in 34 patients (52%) in the FC group and 28 (47%) in the EC group (P=0.71), including: pain in 22 patients of the FC group and 15 of the EC group (P=0.31); vomiting in 15 of the FC group and nine of the EC group (P=0.27); malposition/migration in three of the FC group and four of the EC group (P=0.60); hemorrhage in one of the FC group and two of the EC group (P=0.27); and dysphagia in two of the FC group and three of the EC group (P=0.57). Late complications occurred in 20 patients (30%) in the FC group and 22 (37%) in the EC group (P=0.44), including: tumor in/overgrowth in 13 patients of the FC group and 10 of the EC group (P=0.66); prostheses migration in five of the FC group and eight of the EC group (P=0.28); hemorrhage in two of the FC group and two of the EC group (P=0.54); appearance of esophageal fistulae in seven of the FC group and four of the EC group (P=0.43); food impaction in nine of the FC group and eight of the EC group (P=0.96); esophagitis in 12 of the FC group and 15 of the EC group (P=0.35). Median survival was 107 days (95% confidence interval [CI]=6-369 days) with no difference between the two groups. There were no statistical significant differences in the incidence of complications and in survival between patients undergoing SEMS placement under fluoroscopic control or endoscopic control.
Collapse
Affiliation(s)
- F Ferreira
- Gastroenterology Department, Hospital de São João, Porto, Portugal.
| | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Ananthakrishnan N, Lakshmi CP, Kate V. Esophageal stents in benign and malignant diseases. ASIAN PACIFIC JOURNAL OF TROPICAL DISEASE 2011. [DOI: 10.1016/s2222-1808(11)60074-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
17
|
Martinez JC, Puc MM, Quiros RM. Esophageal stenting in the setting of malignancy. ISRN GASTROENTEROLOGY 2011; 2011:719575. [PMID: 21991527 PMCID: PMC3168502 DOI: 10.5402/2011/719575] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2011] [Accepted: 06/15/2011] [Indexed: 12/28/2022]
Abstract
Esophageal cancer is often diagnosed at an advanced stage, with many patients
found to have locoregional or metastatic disease at time of diagnosis. Because
of this, cure may be unlikely, leading treatment efforts to focus more on
symptom palliation and improving patient quality of life. The majority of
patients with advanced disease suffer from some degree of dysphagia. Palliative
efforts are therefore directed at relieving dysphagia, allowing patients to
manage their oropharyngeal secretions, reduce aspiration risk, and maintain
caloric intake orally. A variety of endoscopic treatment modalities have been
utilized with these objectives in mind, with options determined by the location
and size of the tumor, as well as the patient's expected prognosis. In this
article, we review the use of endoscopically-placed stents for palliation in
patients with advanced esophageal cancer. We discuss the history of stent use in
such cases, as well as more recent developments in stent technology. We give an
overview of some of the more commonly used stents in practice, discuss the
technique of insertion, and survey the short- and long-term outcomes of stent
placement.
Collapse
|
18
|
Esophageal strictures, tumors, and fistulae: stents for primary esophageal cancer. TECHNIQUES IN GASTROINTESTINAL ENDOSCOPY 2010. [DOI: 10.1016/j.tgie.2011.02.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
19
|
Conio M, Blanchi S, Filiberti R, De Ceglie A. Self-expanding plastic stent to palliate symptomatic tissue in/overgrowth after self-expanding metal stent placement for esophageal cancer. Dis Esophagus 2010; 23:590-6. [PMID: 20545980 DOI: 10.1111/j.1442-2050.2010.01068.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Self-expanding metal stents (SEMS) are used to treat obstructive malignancies of the esophagus or esophagogastric junction; however, a potential complication is recurrent dysphagia because of tissue in/overgrowth. The placement of a second SEMS is one strategy to re-establish patency of the esophageal lumen. We evaluated the safety and efficacy of an alternative and likely less costly approach: placing a self-expanding plastic stent (SEPS) to manage relapsing dysphagia in patients previously treated with a partially covered SEMS. From December 2007 to January 2009, 13 patients previously treated with a SEMS for malignant dysphagia underwent treatment by inserting a SEPS to palliate relapsing dysphagia, as a result of tissue in/overgrowth. Stenosis was located in the upper esophagus in one patient, in the middle in four patients, and in the lower esophagus in eight patients. Clinical evaluation was performed at the time of stent placement, after 1 week, and then, monthly until death. The SEPS was successfully placed in a single treatment session for all patients. No preliminary dilation was required, and no further treatment was necessary for any patient. Before stenting, the median dysphagia score was 4 (range 3-4), and 1 week later the score was 0 for all patients. The resolution of dysphagia persisted until patient death (from tumor progression). The mean survival after the SEPS insertion was 4 months (range 3-8). This case series supports the use of a SEPS to palliate dysphagia from tissue in/overgrowth of a SEMS. Future clinical trials with larger patient samples are warranted.
Collapse
Affiliation(s)
- M Conio
- Department of Gastroenterology, General Hospital, Corso Garibaldi 187, Sanremo, Italy.
| | | | | | | |
Collapse
|
20
|
Thoracic Discitis as a Complication of Self-Expanding Metallic Stents in Esophageal Carcinoma. Cardiovasc Intervent Radiol 2009; 34 Suppl 2:S300-2. [DOI: 10.1007/s00270-009-9710-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2009] [Accepted: 08/24/2009] [Indexed: 11/25/2022]
|
21
|
Oláh T. [Surgery of oesophagus]. Magy Seb 2009; 62:204-212. [PMID: 19679529 DOI: 10.1556/maseb.62.2009.4.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Affiliation(s)
- Tibor Oláh
- Kaposi Mór Oktató Kórház Altalános Sebészeti, Er- és Mellkassebészeti Osztály Siófok
| |
Collapse
|
22
|
Tolmácsi B, Rábai K, Szamosi T, Czeglédi Z, Gyökeres T, Zsigmond F, Banai J. [Self-expanding metal stents for palliation of malignant oesophageal obstruction]. Magy Seb 2009; 62:59-66. [PMID: 19386565 DOI: 10.1556/maseb.62.2009.2.2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
BACKGROUND Malignant oesophageal stenosis can be caused by cancer of the oesophagus, gastric cardia, lungs, mediastinum or, rarely, breast. Most of these cases are inoperable due to advanced stage of the disease, comorbidities or age of the patients; and palliative treatment can be applied only. The quality of life is mostly determined by the extent of dysphagia. Several methods are available to palliate dysphagia. Hereby, the authors review their results with palliation of malignant oesophageal obstruction applying self-expanding metal stents. PATIENTS AND METHODS 68 endoscopic stent implantations were performed in 64 patients (15 female and 49 male) with malignant dysphagia between 2003 and 2008. After radiological investigations, distally deployed covered stents with or without an antireflux valve were placed, depending on the localization of the tumour. In one patient with a stenosis localized in the upper third of the oesophagus a proximally deployed covered stent was used. The aim was to re-establish oral nutrition and cover possible fistulas. RESULTS Significant improvement of swallowing was detected in every patient. Average dysphagia score has improved from 3.2 to 1.7. Technical difficulties during stenting occurred in a relatively low percentage of patients only (2 in 68; i.e. 2.94%). Fistulas were covered in every case. Early stent migration (<7 days) happened in one case. One patient suffered non-fatal myocardial infarction two days after stent placement. In 5 cases tumour in- and overgrowth, in 4 cases bleeding was seen as late complications. Oesophago-tracheal fistula was noted in three patients after stent implantation. Late stent migration (>7 days) occurred in two patients. Re-stenting was necessary in four cases, while three patients needed an upper GI endoscopy for cleansing the stent caused by food obstruction. CONCLUSIONS According to our data self-expanding metal stents are highly effective and safe for improving dysphagia. Stent-related complications are relatively rare. This method is highly recommended for palliation of malignant dysphagia.
Collapse
Affiliation(s)
- Balázs Tolmácsi
- HM Allami Egészségügyi Központ Gasztroenterológiai Osztály, Budapest, Hungary.
| | | | | | | | | | | | | |
Collapse
|
23
|
Rao C, Haycock A, Zacharakis E, Krasopoulos G, Yakoub D, Protopapas A, Darzi A, Hanna GB, Athanasiou T. Economic analysis of esophageal stenting for management of malignant dysphagia. Dis Esophagus 2009; 22:337-47. [PMID: 19207559 DOI: 10.1111/j.1442-2050.2008.00916.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Over half of patients diagnosed with esophageal cancer are unsuitable for curative resection. A significant proportion of these patients will subsequently require palliative stenting to alleviate dysphagia. There is growing consensus in the literature that the deployment of a Self-Expanding Metal Stent is the optimum stenting strategy; however, it remains unclear whether covered or uncovered metal stents are more cost-effective. In order to determine which type of prosthesis is more cost-effective, we compared the different stenting strategies in terms of 1-year stent-related mortality, health-related quality of life, and cost. A decision analytical model was constructed to compare the 1-year stent-related mortality, health-related quality of life, and cost between covered and uncovered stents. Probabilistic sensitivity analysis was performed to quantify the uncertainty associated with our results. Value of Information analysis was performed to assess the value of further research. In order to fully characterize the uncertainty associated with this decision, plastic stents were included in our analysis. Stent-related mortality was slightly lower following covered stent deployment compared with uncovered stent deployment (1.00% vs. 1.26%). Covered stents were more effective by 0.0013 Quality-Adjusted Life Years (Standard Deviation [SD] 0.0013 Quality-Adjusted Life Years). They were also less expensive by $729.58 (SD $390.63). Probabilistic sensitivity analysis suggested that these results were not sensitive to model parameter uncertainty. Plastic stents deployment was $2832.64 (SD $1182.72) more expensive than uncovered metal stent deployment. Value of Information analysis suggests that the maximum value of further research in the UK is $61,124.30. The results of this study represent strong evidence for the cost-effectiveness of covered compared with uncovered self-expanding metal stents for the palliation of patients with malignant dysphagia. The findings support previously published literature asserting the dominance of self-expanding metal stents over plastic stents. Value of Information analysis suggests that further research may not be cost-effective. These findings have significant implication for both current clinical practice and future clinical research.
Collapse
Affiliation(s)
- C Rao
- Department of Bio-surgery and Surgical Technology, Imperial College London, London, UK
| | | | | | | | | | | | | | | | | |
Collapse
|