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Singh A, Aggarwal M, Siddiki H. Treatment of refractory benign gastroenteral strictures with fully covered metal stents. VideoGIE 2021; 6:308-310. [PMID: 34278093 PMCID: PMC8267956 DOI: 10.1016/j.vgie.2021.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Video 1Treatment of refractory benign gastroenteral strictures with fully covered metal stents.
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Affiliation(s)
- Amandeep Singh
- Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, Ohio
| | - Manik Aggarwal
- Department of Medicine, Cleveland Clinic, Cleveland, Ohio
| | - Hassan Siddiki
- Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, Ohio
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Siddiqi S, Schraufnagel DP, Siddiqui HU, Javorski MJ, Mace A, Elnaggar AS, Elgharably H, Vargo PR, Steffen R, Hasan SM, Raja S. Recent advancements in the minimally invasive management of esophageal perforation, leaks, and fistulae. Expert Rev Med Devices 2019; 16:197-209. [PMID: 30767693 DOI: 10.1080/17434440.2019.1582329] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Historically, the gold standard management of esophageal perforations, leaks, and fistulae has been traditional open surgery, but it is associated with significant morbidity and mortality. Minimally invasive approaches offer alternatives to surgery in treating hemodynamically stable patients with such defects. In this review article, we will discuss the recent advancements in the minimally invasive management of esophageal perforations, leaks, and fistulas. AREAS COVERED This review includes information from case reports, case series, and clinical trials on minimally invasive management of esophageal perforations, leaks, and fistulas. The focus is on the devices, outcomes, and application of the technology. EXPERT COMMENTARY Minimally invasive treatment represents significant progress in the management of esophageal perforations, leaks, and fistulas. Based on current evidence, it seems safe and effective but it is evolving and more studies are needed to help draw definitive conclusions.
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Affiliation(s)
- Shirin Siddiqi
- a Thoracic and Cardiovascular Surgery , Cleveland Clinic Foundation , Cleveland , OH , USA
| | - Dean P Schraufnagel
- a Thoracic and Cardiovascular Surgery , Cleveland Clinic Foundation , Cleveland , OH , USA
| | - Hafiz Umair Siddiqui
- a Thoracic and Cardiovascular Surgery , Cleveland Clinic Foundation , Cleveland , OH , USA
| | - Michael J Javorski
- a Thoracic and Cardiovascular Surgery , Cleveland Clinic Foundation , Cleveland , OH , USA
| | - Adam Mace
- a Thoracic and Cardiovascular Surgery , Cleveland Clinic Foundation , Cleveland , OH , USA
| | - Abdulrhman S Elnaggar
- a Thoracic and Cardiovascular Surgery , Cleveland Clinic Foundation , Cleveland , OH , USA
| | - Haytham Elgharably
- a Thoracic and Cardiovascular Surgery , Cleveland Clinic Foundation , Cleveland , OH , USA
| | - Patrick R Vargo
- a Thoracic and Cardiovascular Surgery , Cleveland Clinic Foundation , Cleveland , OH , USA
| | - Robert Steffen
- b Department of Cardiovascular Surgery , Minneapolis Heart Institute Foundation , Minneapolis , MN , USA
| | - Saad M Hasan
- a Thoracic and Cardiovascular Surgery , Cleveland Clinic Foundation , Cleveland , OH , USA
| | - Siva Raja
- a Thoracic and Cardiovascular Surgery , Cleveland Clinic Foundation , Cleveland , OH , USA
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Influence of Different Lengths of Rubber Tube on Patients After Esophageal Stent Implantation Using a Silk Thread. Gastroenterol Nurs 2017; 40:484-490. [PMID: 29210817 DOI: 10.1097/sga.0000000000000256] [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] [Indexed: 11/26/2022] Open
Abstract
Our objective was to compare the efficacy of different lengths of rubber tube (6 French) on patients with esophageal stent implantation performed using a silk thread. We measured the effects in terms of pain and foreign body sensation felt in the pharynx and esophageal mucosa of the patients. A retrospective analysis was conducted using records of 65 patients who were divided into 3 groups. Group A had 20 cases with the distal end of the tube toward the nasal cavity, Group B had 21 cases with the distal end of the tube reaching the nasopharynx without exceeding the soft palate, and Group C had 24 cases with the distal end of the tube toward the upper end of the stent. Follow-up was performed on 1 day, 2 days, 1 week, 2 weeks, 4 weeks, 6 weeks, and 8 weeks postoperatively. During each period, the pain scores for Groups B and C were lower than those for Group A (p < .05), whereas no difference was observed when Groups B and C were compared. Although no variations were seen between the 3 groups in terms of the proportion of patients with foreign body sensation on the first day (p > .05), Groups A and B had a lower proportion than Group C (p < .05) at those periods. No difference was observed when Groups A and B were compared. In conclusion, the Group B method was successful in alleviating the side effects caused by the silk thread.
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Clinical outcomes following self-expanding metal stent placement for esophageal salvage. J Thorac Cardiovasc Surg 2017; 154:1145-1150. [PMID: 28416335 DOI: 10.1016/j.jtcvs.2017.03.051] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 02/04/2017] [Accepted: 03/06/2017] [Indexed: 01/08/2023]
Abstract
OBJECTIVES To assess the efficacy of self-expanding metal stents (SEMS) for esophageal salvage in patients who would otherwise require esophageal/conduit resection. METHODS We performed a retrospective chart review of patients who had SEMS placed from January 2010 to December 2015. Patient demographics, esophageal stent characteristics, and outcomes were assessed in our patient cohort. RESULTS Our study included a total of 83 patients. A total of 148 SEMS were placed, with 121 partially covered SEMS (pcSEMS) and 27 fully covered SEMS (cSEMS). A stent was placed more than once in 42.2% of the patients. Median duration of stent placement was 23 days. Indications for SEMS placement included esophageal leak after esophageal resection (45.8%), spontaneous esophageal perforation (22.9%), iatrogenic esophageal perforation (20.5%), and esophageal obstruction (9.6%). Complications from SEMS placement included 6 stent migrations and 1 esophageal perforation. Of the 6 stents that migrated, 2 were pcSEMS and 4 were cSEMS. In a patient who underwent stent placement for a stricture refractory to dilation, a perforation at the distal end was discovered 2 days after stent removal. The perforation healed after the second SEMS placement. Ultimately, 15 patients (18.1%) had to undergo a subsequent esophagectomy or takedown of their conduit with an overall 81.9% salvage of native esophagus or conduits. CONCLUSIONS Our study demonstrates the successful use of SEMS in patients with anastomotic leaks, perforations, and recalcitrant strictures.
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Kim JE, Kim HC, Lee M, Hur S, Kim M, Lee SH, Cho SB, Kim CS, Han JK. Efficacy of Retrievable Metallic Stent with Fixation String for Benign Stricture after Upper Gastrointestinal Surgery. Korean J Radiol 2016; 17:893-902. [PMID: 27833405 PMCID: PMC5102917 DOI: 10.3348/kjr.2016.17.6.893] [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: 05/17/2016] [Accepted: 07/31/2016] [Indexed: 11/21/2022] Open
Abstract
Objective To determine the efficacy of retrievable metallic stent with fixation string for benign anastomotic stricture after upper gastrointestinal (UGI) surgery. Materials and Methods From June 2009 to May 2015, a total of 56 retrievable metallic stents with fixation string were placed under fluoroscopy guidance in 42 patients who were diagnosed with benign anastomotic stricture after UGI surgery. Clinical success was defined as achieving normal regular diet (NRD). Results The clinical success rate after the first stent placement was 57.1% (24/42). After repeated stent placement and/or balloon dilation, the clinical success rate was increased to 83.3% (35/42). Six (14.3%) patients required surgical revision to achieve NRD. One (2.4%) patient failed to achieve NRD. Stent migration occurred in 60.7% (34/56) of patients. Successful rate of removing the stent using fixation string and angiocatheter was 94.6% (53/56). Distal migration occurred in 12 stents. Of the 12 stents, 10 (83.3%) were successfully removed whereas 2 could not be removed. No complication occurred regarding distal migration. Conclusion Using retrievable metallic stent with a fixation string is a feasible option for managing early benign anastomotic stricture after UGI surgery. It can reduce complications caused by distal migration of the stent.
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Affiliation(s)
- Jeong-Eun Kim
- Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea
| | - Hyo-Cheol Kim
- Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea
| | - Myungsu Lee
- Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea
| | - Saebeom Hur
- Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea
| | - Minuk Kim
- Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea
| | - Sang Hwan Lee
- Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea
| | - Soo Buem Cho
- Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea
| | - Chan Sun Kim
- Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea
| | - Joon Koo Han
- Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea
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Gaur P, Lyons C, Malik TM, Kim MP, Blackmon SH. Endoluminal Suturing of an Anastomotic Leak. Ann Thorac Surg 2015; 99:1430-2. [DOI: 10.1016/j.athoracsur.2014.01.089] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 01/13/2014] [Accepted: 01/14/2014] [Indexed: 10/23/2022]
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Esophageal covered stent fixation using an endoscopic over-the-scope clip. Mechanical proof of the concept and first clinical experience. Surg Endosc 2015; 29:3367-72. [PMID: 25631112 DOI: 10.1007/s00464-015-4078-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Accepted: 01/10/2015] [Indexed: 01/21/2023]
Abstract
BACKGROUND AND STUDY AIMS Endoscopic suturing reduces stent migration, but is challenging and time-consuming. We compare endoscopic suturing versus anchoring with a novel over-the-scope clip (Padlock) to fix esophageal stents. Additionally, the first clinical case of Padlock stent fixation is reported. MATERIALS AND METHODS A fully covered esophageal stent was placed in 11 pigs and fixed with one figure-of-eight suture (n = 5) or with a Padlock (n = 4) or not fixed (controls; n = 2). The force required to mobilize the stent was recorded. CLINICAL CASE an esophageal stent was fixed with a Padlock and endoscopically removed 1 month later, in an 82-year-old patient. RESULTS Mean force (newton) to mobilize the stent was similar after suturing and Padlock fixation (23.99 ± 14.91 vs. 19.97 ± 7.62; p = 0.32). In controls was 7 and 11 Newtons. Suturing time (seconds) was longer than Padlock application (455.4 ± 144.83 vs. 155 ± 12.9; p = 0.002). CLINICAL CASE stent fixation was feasible and uncomplicated. Removal was easy, and only mild bleeding occurred. CONCLUSIONS Padlock is faster than endoscopic suturing and achieves similar stent fixation. The first clinical case confirms the feasibility of the method.
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Stavropoulos SN, Modayil R, Friedel D. Closing perforations and postperforation management in endoscopy: esophagus and stomach. Gastrointest Endosc Clin N Am 2015; 25:29-45. [PMID: 25442956 DOI: 10.1016/j.giec.2014.09.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Luminal perforation after endoscopy is a dreaded complication that is associated with significant morbidity and mortality, longer and more costly hospitalization, and the specter of potential future litigation. The management of such perforations requires a multidisciplinary approach. Until recently, surgery was required. However, nowadays the endoscopist has a burgeoning armamentarium of devices and techniques that may obviate surgery. This article discusses the approach to endoscopic perforations in the esophagus and stomach.
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Affiliation(s)
- Stavros N Stavropoulos
- Department of Gastroenterology, Hepatology and Nutrition, Winthrop University Hospital, 222 Station Plaza North, Suite 429, Mineola, NY 11501, USA.
| | - Rani Modayil
- Department of Gastroenterology, Hepatology and Nutrition, Winthrop University Hospital, 222 Station Plaza North, Suite 429, Mineola, NY 11501, USA
| | - David Friedel
- Department of Gastroenterology, Hepatology and Nutrition, Winthrop University Hospital, 222 Station Plaza North, Suite 429, Mineola, NY 11501, USA
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Self-expandable metal stent placement for closure of a leak after total gastrectomy for gastric cancer: report on three cases and review of the literature. Case Rep Gastrointest Med 2014; 2014:409283. [PMID: 25371833 PMCID: PMC4209762 DOI: 10.1155/2014/409283] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Accepted: 09/16/2014] [Indexed: 12/17/2022] Open
Abstract
In the setting of the curative oncological surgery, the gastric surgery is exposed to complicated upper gastrointestinal leaks, and consequently the management of this problem has become more critically focused than was previously possible. We report here three cases of placement of a partially silicone-coated SEMS (Evolution Controlled Release Esophageal Stent System, Cook Medical, Winston-Salem, NC, USA) in patients who underwent total gastrectomy with Roux-en-Y end-to-side esophagojejunostomy for a gastric adenocarcinoma. The promising results of our report, despite the small number of patients, suggest that early stenting (through a partially silicone-coated SEMS) is a feasible alternative to surgical treatment in this subset of patients. In fact, in the treatment of leakage after total gastrectomy, plastic stents and totally covered metallic stents may not adhere sufficiently to the esophagojejunal walls and, as a result, migrate beyond the anastomosis. However, prospective studies with a larger number of patients might assess the real effectiveness and safety of this procedure.
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Irani S, Baron TH, Gluck M, Gan I, Ross AS, Kozarek RA. Preventing migration of fully covered esophageal stents with an over-the-scope clip device (with videos). Gastrointest Endosc 2014; 79:844-51. [PMID: 24472762 DOI: 10.1016/j.gie.2013.12.012] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Accepted: 12/06/2013] [Indexed: 12/12/2022]
Affiliation(s)
- Shayan Irani
- Department of Gastroenterology, Virginia Mason Medical Center, Seattle, Washington
| | - Todd H Baron
- Division of Gastroenterology & Hepatology, Mayo Clinic Rochester, Rochester, Minnesota
| | - Michael Gluck
- Department of Gastroenterology, Virginia Mason Medical Center, Seattle, Washington
| | - Ian Gan
- Department of Gastroenterology, Virginia Mason Medical Center, Seattle, Washington
| | - Andrew S Ross
- Department of Gastroenterology, Virginia Mason Medical Center, Seattle, Washington
| | - Richard A Kozarek
- Department of Gastroenterology, Virginia Mason Medical Center, Seattle, Washington
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Martins BDC, Retes FA, Medrado BF, de Lima MS, Pennacchi CMPS, Kawaguti FS, Safatle-Ribeiro AV, Uemura RS, Maluf-Filho F. Endoscopic management and prevention of migrated esophageal stents. World J Gastrointest Endosc 2014. [PMID: 24567792 DOI: 10.4253/wjge.v6.i2.49.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The use of self-expandable metallic stents has increased recently to palliate inoperable esophageal neoplasia and also in the management of benign strictures. Migration is one of the most common complications after stent placement and the endoscopist should be able to recognize and manage this situation. Several techniques for managing migrated stents have been described, as well as new techniques for preventing stent migration. Most stents have a "lasso" at the upper flange which facilitates stent repositioning or removal. An overtube, endoloop and large polypectomy snare may be useful for the retrieval of stents migrated into the stomach. External fixation of the stent with Shim's technique is efficient in preventing stent migration. Suturing the stent to the esophageal wall, new stent designs with larger flanges and double-layered stents are promising techniques to prevent stent migration but they warrant validation in a larger cohort of patients.
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Affiliation(s)
- Bruno da Costa Martins
- Bruno da Costa Martins, Felipe Alves Retes, Bruno Frederico Medrado, Marcelo Simas de Lima, Caterina Maria Pia Simione Pennacchi, Fabio Shiguehissa Kawaguti, Adriana Vaz Safatle-Ribeiro, Ricardo Sato Uemura, Fauze Maluf-Filho, Department of Gastroenterology, Endoscopy Division, Cancer Institute of the University of São Paulo, São Paulo 01246-000, Brazil
| | - Felipe Alves Retes
- Bruno da Costa Martins, Felipe Alves Retes, Bruno Frederico Medrado, Marcelo Simas de Lima, Caterina Maria Pia Simione Pennacchi, Fabio Shiguehissa Kawaguti, Adriana Vaz Safatle-Ribeiro, Ricardo Sato Uemura, Fauze Maluf-Filho, Department of Gastroenterology, Endoscopy Division, Cancer Institute of the University of São Paulo, São Paulo 01246-000, Brazil
| | - Bruno Frederico Medrado
- Bruno da Costa Martins, Felipe Alves Retes, Bruno Frederico Medrado, Marcelo Simas de Lima, Caterina Maria Pia Simione Pennacchi, Fabio Shiguehissa Kawaguti, Adriana Vaz Safatle-Ribeiro, Ricardo Sato Uemura, Fauze Maluf-Filho, Department of Gastroenterology, Endoscopy Division, Cancer Institute of the University of São Paulo, São Paulo 01246-000, Brazil
| | - Marcelo Simas de Lima
- Bruno da Costa Martins, Felipe Alves Retes, Bruno Frederico Medrado, Marcelo Simas de Lima, Caterina Maria Pia Simione Pennacchi, Fabio Shiguehissa Kawaguti, Adriana Vaz Safatle-Ribeiro, Ricardo Sato Uemura, Fauze Maluf-Filho, Department of Gastroenterology, Endoscopy Division, Cancer Institute of the University of São Paulo, São Paulo 01246-000, Brazil
| | - Caterina Maria Pia Simione Pennacchi
- Bruno da Costa Martins, Felipe Alves Retes, Bruno Frederico Medrado, Marcelo Simas de Lima, Caterina Maria Pia Simione Pennacchi, Fabio Shiguehissa Kawaguti, Adriana Vaz Safatle-Ribeiro, Ricardo Sato Uemura, Fauze Maluf-Filho, Department of Gastroenterology, Endoscopy Division, Cancer Institute of the University of São Paulo, São Paulo 01246-000, Brazil
| | - Fabio Shiguehissa Kawaguti
- Bruno da Costa Martins, Felipe Alves Retes, Bruno Frederico Medrado, Marcelo Simas de Lima, Caterina Maria Pia Simione Pennacchi, Fabio Shiguehissa Kawaguti, Adriana Vaz Safatle-Ribeiro, Ricardo Sato Uemura, Fauze Maluf-Filho, Department of Gastroenterology, Endoscopy Division, Cancer Institute of the University of São Paulo, São Paulo 01246-000, Brazil
| | - Adriana Vaz Safatle-Ribeiro
- Bruno da Costa Martins, Felipe Alves Retes, Bruno Frederico Medrado, Marcelo Simas de Lima, Caterina Maria Pia Simione Pennacchi, Fabio Shiguehissa Kawaguti, Adriana Vaz Safatle-Ribeiro, Ricardo Sato Uemura, Fauze Maluf-Filho, Department of Gastroenterology, Endoscopy Division, Cancer Institute of the University of São Paulo, São Paulo 01246-000, Brazil
| | - Ricardo Sato Uemura
- Bruno da Costa Martins, Felipe Alves Retes, Bruno Frederico Medrado, Marcelo Simas de Lima, Caterina Maria Pia Simione Pennacchi, Fabio Shiguehissa Kawaguti, Adriana Vaz Safatle-Ribeiro, Ricardo Sato Uemura, Fauze Maluf-Filho, Department of Gastroenterology, Endoscopy Division, Cancer Institute of the University of São Paulo, São Paulo 01246-000, Brazil
| | - Fauze Maluf-Filho
- Bruno da Costa Martins, Felipe Alves Retes, Bruno Frederico Medrado, Marcelo Simas de Lima, Caterina Maria Pia Simione Pennacchi, Fabio Shiguehissa Kawaguti, Adriana Vaz Safatle-Ribeiro, Ricardo Sato Uemura, Fauze Maluf-Filho, Department of Gastroenterology, Endoscopy Division, Cancer Institute of the University of São Paulo, São Paulo 01246-000, Brazil
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Abulfaraj M, Mathavan V, Arregui M. Therapeutic flexible endoscopy replacing surgery: Part 1—Leaks and fistulas. TECHNIQUES IN GASTROINTESTINAL ENDOSCOPY 2013. [DOI: 10.1016/j.tgie.2013.08.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Didden P, Spaander MCW, Bruno MJ, Kuipers EJ. Esophageal stents in malignant and benign disorders. Curr Gastroenterol Rep 2013; 15:319. [PMID: 23463153 DOI: 10.1007/s11894-013-0319-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Endoscopic stent placement is an effective palliative treatment for malignant dysphagia and fistula, leading to rapid symptom relief. However, recurrent dysphagia and other stent-related complications are common, for which reason continuously new design modifications are implemented. Although some of these changes facilitate stent placement, complications remain and occur at similar rates. Recently, stents have also been used in benign esophageal disorders. Covered stents have the ability to effectively seal esophageal perforations and leaks, reducing the need for invasive surgery. This benefit does not pertain to patients with refractory benign esophageal strictures, in whom stents have limited long-term effect and are associated with a high complication rate. The initial results of fully covered metal stents in refractory esophageal variceal bleeding are encouraging, but their definite role remains to be further elucidated. This review provides an overview of indications, techniques, and management of complications of stents in malignant and benign esophageal disease.
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Affiliation(s)
- P Didden
- Department of Gastroenterology and Hepatology, Erasmus University Medical Center, Rotterdam, The Netherlands.
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