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Wannhoff A, Kouladouros K, Koschny R, Walter B, Zoll Z, Büringer K, Blank S, Schempf U, Caca K, Wichmann D. Endoscopic vacuum therapy for the treatment of Boerhaave syndrome: a multicenter analysis. Gastrointest Endosc 2025; 101:365-374. [PMID: 39218268 DOI: 10.1016/j.gie.2024.08.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 07/31/2024] [Accepted: 08/23/2024] [Indexed: 09/04/2024]
Abstract
BACKGROUND AND AIMS Boerhaave syndrome, an effort rupture of the esophagus, is a rare but serious condition. Endoscopic vacuum therapy (EVT) is a new therapeutic approach for GI perforation. We aimed to evaluate EVT for treatment of Boerhaave syndrome. METHODS This retrospective study was conducted at 5 tertiary hospitals in southern Germany. All patients treated for Boerhaave syndrome since 2010 were identified and included. Treatment success and outcomes were assessed and compared between the different modes of primary treatment. RESULTS Fifty-seven patients with Boerhaave syndrome were identified (median age, 68 years; n = 16 female). The primary treatment was EVT in 25 cases, surgery in 14, and endoscopic stenting in 15. Primary EVT was successful in 20 (80.0%) of the 25 patients. Two patients were switched to surgical treatment, 1 was switched to esophageal stenting, and 2 patients died. The mortality rate was lower (P = .160) in patients treated primarily with EVT (n = 2 [8.0%]) compared with patients in the non-EVT group (n = 8 [25.0%]). Treatment success was significantly higher (P = .007) for primary EVT (80.0%) than for non-EVT (43.8%). Primary EVT was associated with treatment success in multivariable analysis. CONCLUSIONS EVT showed a high success rate for treatment of Boerhaave syndrome and was associated with treatment success.
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Affiliation(s)
- Andreas Wannhoff
- Department of Internal Medicine, Gastroenterology, Haemato-Oncology, Diabetology, and Infectiology, Hospital Ludwigsburg, Ludwigsburg, Germany.
| | - Konstantinos Kouladouros
- Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Mannheim, Germany; Central Interdisciplinary Endoscopy, Department of Hepatology and Gastroenterology, Charité University Hospital Berlin, Berlin, Germany
| | - Ronald Koschny
- Department of Gastroenterology, University Hospital Heidelberg, Heidelberg, Germany
| | - Benjamin Walter
- Department of Internal Medicine I, Ulm University Hospital, Ulm, Germany
| | - Zita Zoll
- Department of Internal Medicine, Gastroenterology, Haemato-Oncology, Diabetology, and Infectiology, Hospital Ludwigsburg, Ludwigsburg, Germany
| | - Karsten Büringer
- Department of Internal Medicine I, Gastroenterology, Gastrointestinal Oncology, Hepatology, Infectiology and Geriatrics, University Hospital Tübingen, Tübingen, Germany
| | - Susanne Blank
- Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Mannheim, Germany
| | - Ulrike Schempf
- Department of Internal Medicine I, Gastroenterology, Gastrointestinal Oncology, Hepatology, Infectiology and Geriatrics, University Hospital Tübingen, Tübingen, Germany
| | - Karel Caca
- Department of Internal Medicine, Gastroenterology, Haemato-Oncology, Diabetology, and Infectiology, Hospital Ludwigsburg, Ludwigsburg, Germany
| | - Dörte Wichmann
- Department of Internal Medicine I, Gastroenterology, Gastrointestinal Oncology, Hepatology, Infectiology and Geriatrics, University Hospital Tübingen, Tübingen, Germany
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Kwesiga MP, Guillory RJ, Demir AG. Influence of metal oxides on biocompatibility of additively manufactured NiTi. Biointerphases 2024; 19:051001. [PMID: 39235276 DOI: 10.1116/6.0003665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Accepted: 08/07/2024] [Indexed: 09/06/2024] Open
Abstract
In order to properly satisfy biomedical constraints for cardiovascular applications, additively manufactured NiTi scaffolds required further process and metallurgical engineering. Additively manufactured NiTi materials for cardiovascular use will have to undergo surface finishing in order to minimize negative surface interactions within the artery. In this study, we sought to understand biocompatibility from chemically etched additively manufactured NiTi scaffolds by laser powder bed fusion (LPBF). Although two distinct oxide films were created in the surface etching process (labeled CP-A and CP-B), no qualitative changes in microroughness were seen between the two conditions. CP-A possessed significantly less Ni at the surface (0.19 at. %) than the CP-B group (3.30 at. %), via x-ray photoelectron spectroscopy, alongside a concomitant shift in the O1 s peak presentation alluding to a greater formation of a Ni based oxide in the CP-B group. Our live dead staining revealed significant toxicity and reduced cellular attachment for the CP-B group, in addition to inducing more cell lysis (20.9 ± 5.1%), which was significantly increased when compared to CP-A (P < 0.01). Future practices of manufacturing NiTi scaffolds using LPBF should focus on producing surface films that are not only smooth, but free of cytotoxic Ni based oxides.
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Affiliation(s)
- Maria P Kwesiga
- Department of Biomedical Sciences, Grand Valley State University, Allendale, Michigan, 49401, USA
| | - Roger J Guillory
- Joint Department of Biomedical Engineering, Medical College of Wisconsin, Marquette University, Milwaukee, Wisconsin, 53226, USA
| | - Ali Gökhan Demir
- Department of Mechanical Engineering, Politecnico di Milano, Via La Masa 1, 20156 Milan, Italy
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Usenko OY, Sydiuk AV, Sydiuk OE, Klimas AS, Savenko GY, Teslia OT. The battle trauma of the esophagus. KLINICHESKAIA KHIRURGIIA 2022. [DOI: 10.26779/2522-1396.2022.7-8.03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
Objective. Estimation of efficacy of diagnosis and methods of treatment in patients, suffering the battle trauma of the esophagus.
Materials and methods. In the Division of Thoraco–Abdominal Surgery of the Shalimov National Institute of Surgery and Transplantology the treatment of 7 patients with penetrating esophageal wounds was conducted. In 6 (85.7%) patients the penetrating gun–shot woundings were diagnosed, and in 1 (14.3%) patient – the closed thoracic trauma. Shrapnel woundings prevailed over the bullet woundings, occurring in5 (71.4%) and 2 (28.6%) patients, accordingly. Esophageal trauma as isolated affection, caused by the gun–shot penetraiting wounding was extremely rare – in 1 (14.3%) patient. Efficacy of diagnosis and surgical stationary treatment of esophageal trauma, caused by foreign bodies, was estimated, as well as the terms of the esophagus integrity restoration.
Results. In 2 (2.6%) patients with pleural empyema open toracotomy access with further pleurectomy, pulmonary decortication, and restoration of the esophageal wall integrity was applied. In 4 (57.2%) patients thoracoscopy, pleurectomy, pulmonary decortication, and esophageal suturing were conducted.
Intraoperatively in 6 (85.7%) patients the endoscopic vacuum therapy system was installed locally in the damaged esophagus portion. In 1 (14.3%) patient with local pleural empyema the treatment tactics consisted of the pleural cavity drainage under ultrasonographic control plus endoscopic vacuum therapy. For achievement of its optimal efficacy the pressure value was supported in range from 100 to 120 mm Hg. Endoscopic vacuum system was changed every 4 – 5 days. Average duration of the fistulas healing have constituted 1mo.
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Adequate Management of Postoperative Complications after Esophagectomy: A Cornerstone for a Positive Outcome. Cancers (Basel) 2022; 14:cancers14225556. [PMID: 36428649 PMCID: PMC9688292 DOI: 10.3390/cancers14225556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/09/2022] [Accepted: 11/10/2022] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Esophagectomy for cancer is one of the most complex procedures in visceral surgery. Postoperative complications negatively affect the patient's overall survival. They are not influenced by the histology type (adenocarcinoma (AC)/squamous cell carcinoma (SCC)), or the surgical approach (open, laparoscopic, or robotic-assisted). Among those dreadful complications are anastomotic leak (AL), esophago-respiratory fistula (ERF), and chylothorax (CT). METHODS In this review, we summarize the methods to avoid these complications, the diagnostic approach, and new therapeutic strategies. RESULTS In the last 20 years, both centralization of the medical care, and the development of endoscopy and radiology have positively influenced the management of postoperative complications. For the purpose of their prevention, perioperative measures have been applied. The treatment includes conservative, endoscopic, and surgical approaches. CONCLUSIONS Post-esophagectomy complications are common. Prevention measures should be known. Early recognition and adequate treatment of these complications save lives and lead to better outcomes.
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Bi Y, Chen H, Han X, Ren J. Fully covered self-expanding metallic stent placement or three-tube method for esophagomediastinal fistula: A STROBE-compliant article. Medicine (Baltimore) 2022; 101:e30894. [PMID: 36181045 PMCID: PMC9524923 DOI: 10.1097/md.0000000000030894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 09/01/2022] [Indexed: 01/05/2023] Open
Abstract
To determine the safety, feasibility and clinical outcomes of interventional methods for the management of esophagomediastinal fistula, and to investigate the effect of stent placement on fistula healing and the swallowing. Sixty consecutive patients with esophagomediastinal fistula were treated using interventional method and were retrospectively assessed. Patients received 3-tube but without covered stent placement were placed in group A, the remaining patients received covered stent placement with/without 3-tube method were placed in group B. Tubes and stents would be removed once fistula heals. Interventional procedures were technically successful all patients (100%). Esophageal stents and abscess drainage tubes were successfully removed from 14 patients. Three patients underwent stent removal during the perioperative period, resulting in a clinical success rate of 88.5% of 26 patients in group B. A total of 13 complications were found in all patients, including 5 major complications. Patients in group B showed a higher healing rate of abscess cavity and better dysphagia score than group A. During follow up, 17 patients in group A and 11 patients in group B were still alive. Interventional treatment is safe, feasible and efficacious for esophagomediastinal fistula; covered stent placement can promote fistula healing and improve swallowing.
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Affiliation(s)
- Yonghua Bi
- Department of Interventional Radiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Hongmei Chen
- Department of Ultrasound, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Xinwei Han
- Department of Interventional Radiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jianzhuang Ren
- Department of Interventional Radiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Jung DH, Huh CW, Min YW, Park JC. Endoscopic vacuum therapy for the management of upper GI leaks and perforations: a multicenter retrospective study of factors associated with treatment failure (with video). Gastrointest Endosc 2022; 95:281-290. [PMID: 34555386 DOI: 10.1016/j.gie.2021.09.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 09/04/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS The optimal management of upper GI (UGI) leaks and perforations remains controversial. Endoscopic vacuum therapy (EVT) is a new alternative endoscopic treatment that has recently shown a high rate of successful closure of UGI leaks and perforations. However, only few reports have been made on the factors that affect clinical success rates. METHODS Four referral hospitals participated in this retrospective multicenter study. Between September 2015 and February 2020, 119 patients who underwent EVT for a UGI perforation or leak were included. We retrospectively evaluated the clinical outcomes of EVT and the factors associated with EVT failure. Neoadjuvant treatments included chemotherapy, radiotherapy, or chemoradiotherapy before surgery, and the intraluminal method meant that the sponge was placed directly onto the defect within the lumen of UGI tract. RESULTS Among 119 patients, 84 showed clinical success (70.6%). Eighty-nine patients (74.8%) underwent EVT as primary therapy and 30 patients as rescue therapy. On multivariate analysis, neoadjuvant treatment and the intraluminal method were significant independent risk factors for EVT failure. During the follow-up period (median, 8.46 months), stenosis occurred in 22 patients (18.5%). The overall survival rate of the EVT success group was significantly higher than that of the EVT failure group. Twenty-two patients died because of non-EVT-related causes, and 7 patients died because of leakage-related adverse events. No death was caused by the EVT itself. CONCLUSIONS EVT is a promising treatment method for UGI leaks and perforations. Further studies are needed to establish the indications for successful EVT.
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Affiliation(s)
- Da Hyun Jung
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Cheal Wung Huh
- Department of Internal Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Yang Won Min
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jun Chul Park
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
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Mandarino FV, Esposito D, Spelta GNE, Cavestro GM, Rosati R, Parise P, Gemma MF, Fanti L. Double layer stent for the treatment of leaks and fistula after upper gastrointestinal oncologic surgery: a retrospective study. Updates Surg 2021; 74:1055-1062. [PMID: 34510378 DOI: 10.1007/s13304-021-01155-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 08/23/2021] [Indexed: 11/25/2022]
Abstract
Anastomotic dehiscence is one of the most morbidity related and deadly complication after foregut oncologic surgery. The aim of the study is to evaluate the effectiveness of double layer stents (Niti-S™ Beta™ Esophageal Stent) in the management of dehiscences after upper gastrointestinal oncologic surgery. We retrospectively studied consecutive patients who underwent Niti-S™ Beta™ esophageal stent placement from June 2014 to September 2019 for the treatment of anastomotic leaks/fistula following esophagectomy or gastrectomy for cancer. Univariate two-sided logistic regression analysis was used to evaluate possible predictors of successful anastomotic leak/fistula closure. A total of 37 patients were studied and 75 stents were positioned in these patients during the endoscopic procedures. Effective leak/fistula closure was obtained in 23/37 (62.2%). No technical endoscopic failure or complications ensued during the placing of the devices. Regarding delayed complications, migration was observed in 17/75 (22.7%) procedures and stent leaking in 29/75 (38.6%). Three variables significantly favoured stent treatment failure, namely previous neoadjuvant therapy (OR 9.3, P = 0.01), fistula (instead of leak) (OR 6.5, P = 0.01), and stent leak (OR 17.0, P = 0.01). Placement of Beta Niti-S esophageal stent is a safe and effective method that could be considered for the management of leaks and fistula after upper gastrointestinal cancer. Crucial points in the management of post-surgical leaks with this technique are the prompt recognition of leaks and fistula, the prompt endoscopic/radiologic drain of collection and the choice of adequate size of the stent.
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Affiliation(s)
- Francesco Vito Mandarino
- Division of Gastroenterology and Gastrointestinal Endoscopy, Department of Experimental Oncology, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Via Olgettina 60, 20132, Milan, Italy.
| | - Dario Esposito
- Division of Gastroenterology and Gastrointestinal Endoscopy, Department of Experimental Oncology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Greta Natalia Edmea Spelta
- Division of Gastroenterology and Gastrointestinal Endoscopy, Department of Experimental Oncology, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Via Olgettina 60, 20132, Milan, Italy
| | - Giulia Martina Cavestro
- Division of Gastroenterology and Gastrointestinal Endoscopy, Department of Experimental Oncology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Riccardo Rosati
- Division of Gastrointestinal Surgery, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Paolo Parise
- Division of Gastrointestinal Surgery, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Marco Fabio Gemma
- Department of Anaesthesia and Intensive Care, Fatebenefratelli Hospital, Milan, Italy
| | - Lorella Fanti
- Division of Gastroenterology and Gastrointestinal Endoscopy, Department of Experimental Oncology, IRCCS San Raffaele Scientific Institute, Milan, Italy
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Liesenfeld LF, Schmidt T, Zhang-Hagenlocher C, Sauer P, Diener MK, Müller-Stich BP, Hackert T, Büchler MW, Schaible A. Self-expanding Metal Stents for Anastomotic Leaks After Upper Gastrointestinal Cancer Surgery. J Surg Res 2021; 267:516-526. [PMID: 34256194 DOI: 10.1016/j.jss.2021.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 04/25/2021] [Accepted: 06/08/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Anastomotic leakage (AL) is a common and severe complication after upper gastrointestinal (UGI) surgery. Although evidence is scarce, endoscopic deployed self-expanding metal stents (SEMS) are well-established for the management of AL in UGI surgery. The present study aimed to evaluate the feasibility, effectiveness, and safety of SEMS in terms of success, mortality, and morbidity in patients with AL after UGI cancer surgery. MATERIALS AND METHODS Patients with AL after primary UGI cancer surgery were retrospectively analyzed with regard to demographics, disease, surgical and endoscopic procedures, and complications. Stent treatment success was divided into technical, primary (within 72 hours of stent deployment), sustained (after 72 hours of stent deployment), and sealing success. RESULTS In a total of 63 patients, 74 stents were used and 11 were deployed in endoscopic reinterventions. Stent deployment was successful in all patients. Primary and sustained success rates were 68.3% (n = 43) and 65.1% (n = 41), respectively. Of the primarily successfully treated patients, 87.8% remained successfully treated. If primary treatment was unsuccessful, it remained unsuccessful in 66.6% of the patients (P = 0.002). Final sealing of the leakage was observed in 65.1% of patients (n = 41). Longer stent shafts and wider stent end widths were correlated with successful stent treatment (P < 0.05). CONCLUSION SEMS are a safe and sufficient tool in the treatment of AL after UGI cancer surgery. Treatment success is improved with longer stent shafts and wider stent end widths. Switching to alternative treatments is strongly suggested if signs of persistent leakage are present beyond 72 hours after stent placement, as this is highly indicative of sustained stent failure.
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Affiliation(s)
- Lukas F Liesenfeld
- Department of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany.
| | - Thomas Schmidt
- Department of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | | | - Peter Sauer
- Department of Gastroenterology, University Hospital Heidelberg, Heidelberg, Germany
| | - Markus K Diener
- Department of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - Beat P Müller-Stich
- Department of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - Thilo Hackert
- Department of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - Markus W Büchler
- Department of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - Anja Schaible
- Department of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany
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Ge PS, Raju GS. Rupture and Perforation of the Esophagus. THE ESOPHAGUS 2021:769-788. [DOI: 10.1002/9781119599692.ch45] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2025]
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10
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Successful closure with covered self-expandable metal stent for severe anastomotic leakage in the cervical esophagus. Clin J Gastroenterol 2021; 14:714-717. [PMID: 33743141 DOI: 10.1007/s12328-021-01381-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 02/26/2021] [Indexed: 10/21/2022]
Abstract
Anastomotic leakage is one of the major complications of esophageal surgery with a high mortality rate and significant morbidity. We describe a case of severe anastomotic leakage close to the hypopharynx after esophageal cancer resection. Despite the conservative management with external drainage, the severe leak did not improve. A fully covered self-expandable metal stent (SEMS) with short flares, which was designed for the cervical esophagus, was subsequently placed bridging the anastomosis to seal the fistula. The post-procedural course was uneventful, and the stent was endoscopically removed after three weeks without any complications. The patient was discharged home three weeks after the stent removal. Our results suggest that placement of fully covered SEMS with short flares may be a safe and effective treatment in this condition of patients.
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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: 2.2] [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.
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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.
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Bi Y, Wu Z, Yi M, Han X, Ren J. Three-tube method and covered metallic stent for the treatment of anastomotic leakage after esophagectomy. BMC Gastroenterol 2020; 20:330. [PMID: 33028222 PMCID: PMC7539400 DOI: 10.1186/s12876-020-01480-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 09/29/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Anastomotic leakage is common and life-threatening complication after esophagectomy. The management of esophageal anastomotic leakage remains challenging. We aimed to determine the safety, feasibility and efficacy of three-tube method and covered metallic stent placement for the management of anastomotic leakage. METHODS Twenty-six consecutive patients with anastomotic leakage were treated using three-tube method and covered metallic stent and the medical records were retrospectively assessed. All patients received placement of abscess drainage tube, jejunal feeding tube and gastrointestinal decompression tube as well as esophageal covered stent, followed by continue abscess drainage, nutritional support and anti-inflammatory treatment. Tubes and esophageal stents will be removed once anastomotic leakage heals. RESULTS The procedure was technically successful in 23 patients (95.8%). A total of 31 covered stents were used. Esophageal stents and abscess drainage tubes were successfully removed from 14 patients. The median retention duration was 2.3 months and 2.6 months for stent and abscess drainage tubes, respectively. No perioperative death, esophageal rupture, massive hemorrhage, or other severe complications were observed during procedures. The abscess cavity had markedly decreased in 8 patients or disappeared in 16 cases. During follow-up, 8 patients died of cancer recurrence and 2 patients died of severe pulmonary infection. The 1-, 3-, 5-year survival rates were 60.1, 51.5 and 51.5%, respectively. CONCLUSION Three-tube method and covered metallic stent placement is safe, feasible and efficacious for treatment of anastomotic leakage after esophagectomy.
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Affiliation(s)
- Yonghua Bi
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, No.1, East Jian She Road, Zhengzhou, 450052 China
| | - Zhengyang Wu
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, No.1, East Jian She Road, Zhengzhou, 450052 China
| | - Mengfei Yi
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, No.1, East Jian She Road, Zhengzhou, 450052 China
| | - Xinwei Han
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, No.1, East Jian She Road, Zhengzhou, 450052 China
| | - Jianzhuang Ren
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, No.1, East Jian She Road, Zhengzhou, 450052 China
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13
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John A, Chowdhury SD, Kurien RT, David D, Dutta AK, Simon EG, Abraham V, Joseph AJ, Samarasam I. Self-expanding metal stent in esophageal perforations and anastomotic leaks. Indian J Gastroenterol 2020; 39:445-449. [PMID: 33001339 DOI: 10.1007/s12664-020-01078-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 07/15/2020] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND AIMS Placement of self-expanding metal stents (SEMS) has emerged as a minimally invasive treatment option for esophageal perforation and leaks. The aim of our study was to assess the role of SEMS for the management of benign esophageal diseases such as perforations and anastomotic leaks. METHODS All patients (n = 26) who underwent SEMS placement for esophageal perforation and anastomotic leaks between May 2012 and February 2019 were included. Data were analyzed in relation to the indications, type of stent used, complications, and outcomes. RESULTS Indications for stent placement included anastomotic leaks 65% (n = 17) and perforations 35% (n = 9). Fully covered SEMS (FCSEMS) was placed in 25 patients, and in 1, partially covered SEMS (PCSEMS) was placed. Stent placement was successful in all the patients (n = 26). Four patients did not report for follow-up after stenting. Among the patients on follow-up, 91% (20/22) had healing of the mucosal defect. Stent-related complications were seen in 5 (23%) patients and included stent migration [3], reactive hyperplasia [1] and stricture [1]. CONCLUSION Covered stent placement for a duration of 8 weeks is technically safe and clinically effective as a first-line procedure for bridging and healing benign esophageal perforation and leaks.
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Affiliation(s)
- Anoop John
- Department of Gastroenterology, Christian Medical College, Vellore 632 004, India
| | | | - Reuben Thomas Kurien
- Department of Gastroenterology, Christian Medical College, Vellore 632 004, India
| | - Deepu David
- Department of Gastroenterology, Christian Medical College, Vellore 632 004, India
| | - Amit Kumar Dutta
- Department of Gastroenterology, Christian Medical College, Vellore 632 004, India
| | - Ebby George Simon
- Department of Gastroenterology, Christian Medical College, Vellore 632 004, India
| | - Vijay Abraham
- Upper GI Surgery Unit, Division of Surgery, Christian Medical College, Vellore 632 004, India
| | - A J Joseph
- Department of Gastroenterology, Christian Medical College, Vellore 632 004, India
| | - Inian Samarasam
- Upper GI Surgery Unit, Division of Surgery, Christian Medical College, Vellore 632 004, India
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Cereatti F, Grassia R, Drago A, Conti CB, Donatelli G. Endoscopic management of gastrointestinal leaks and fistulae: What option do we have? World J Gastroenterol 2020; 26:4198-4217. [PMID: 32848329 PMCID: PMC7422542 DOI: 10.3748/wjg.v26.i29.4198] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/10/2020] [Accepted: 07/23/2020] [Indexed: 02/06/2023] Open
Abstract
Gastrointestinal leaks and fistulae are serious, potentially life threatening conditions that may occur with a wide variety of clinical presentations. Leaks are mostly related to post-operative anastomotic defects and are responsible for an important share of surgical morbidity and mortality. Chronic leaks and long standing post-operative collections may evolve in a fistula between two epithelialized structures. Endoscopy has earned a pivotal role in the management of gastrointestinal defects both as first line and as rescue treatment. Endotherapy is a minimally invasive, effective approach with lower morbidity and mortality compared to revisional surgery. Clips and luminal stents are the pioneer of gastrointestinal (GI) defect endotherapy, whereas innovative endoscopic closure devices and techniques, such as endoscopic internal drainage, suturing system and vacuum therapy, has broadened the indications of endoscopy for the management of GI wall defect. Although several endoscopic options are currently used, a standardized evidence-based algorithm for management of GI defect is not available. Successful management of gastrointestinal leaks and fistulae requires a tailored and multidisciplinary approach based on clinical presentation, defect features (size, location and onset time), local expertise and the availability of devices. In this review, we analyze different endoscopic approaches, which we selected on the basis of the available literature and our own experience. Then, we evaluate the overall efficacy and procedural-specific strengths and weaknesses of each approach.
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Affiliation(s)
- Fabrizio Cereatti
- Digestive Endoscopy and Gastroenterology Unit, Cremona Hospital, Cremona, Cremona 26100, Italy
| | - Roberto Grassia
- Digestive Endoscopy and Gastroenterology Unit, Cremona Hospital, Cremona, Cremona 26100, Italy
| | - Andrea Drago
- Digestive Endoscopy and Gastroenterology Unit, Cremona Hospital, Cremona, Cremona 26100, Italy
| | - Clara Benedetta Conti
- Digestive Endoscopy and Gastroenterology Unit, Cremona Hospital, Cremona, Cremona 26100, Italy
| | - Gianfranco Donatelli
- Department of Interventional Endoscopy, Hospital Prive Peupliers, Ramsay Santé, Paris 75013, France
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Bi Y, Yi M, Yu Z, Han X, Ren J. Covered metallic stent for the treatment of malignant esophageal fistula combined with stricture. BMC Gastroenterol 2020; 20:248. [PMID: 32731861 PMCID: PMC7392825 DOI: 10.1186/s12876-020-01398-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 07/24/2020] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Esophageal fistula and stricture is rare but life-threatening complication for esophageal cancer. The management of esophageal fistula and stricture remains challenging. We aimed to determine the safety, feasibility and efficacy of covered metallic stent and three tubes placement for the management of esophageal fistula and stricture. METHODS Between May 2012 and March 2018, all patients with esophageal fistula and stricture were treated using three tubes or covered metallic stent placement. Patients in group A received covered stents and three tubes placement. Patients in group B only received three tubes placement. Continue abscess drainage and nutritional support was performed after procedure. Three tubes or esophageal stents were removed once esophageal fistula heals. The related medical records were retrospectively assessed. RESULTS Thirty-seven consecutive patients with esophageal fistula and stricture were enrolled, including 26 patients in group A and 11 patients in group B. Stent placement procedure was technically successful in 25 patients (96.2%). A total of 42 covered stents were inserted. Seventeen esophageal stents were successfully removed from 10 patients. The median retention duration was 3.3 months and 3.4 months for stent and abscess drainage tubes, respectively. One perioperative death due to massive hemorrhage was observed 21 days after stent placement. The abscess cavity was decreased or disappeared in 17 cases and 4 cases in group A and group B, respectively. During follow up, patients in group A still showed a significant better condition of normal diet than that in group B (p < 0.05). Fourteen patients died of cancer recurrence, 3 patients died of massive digestive bleeding and 2 patients died of severe pulmonary infection. The median survivals were 14.8 months and 13.2 months for group A and group B, respectively. CONCLUSIONS Covered metallic stent placement is safe, feasible and efficacious for treatment of esophageal fistula and stricture, with a better condition of normal diet than patients only received three tubes placement.
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Affiliation(s)
- Yonghua Bi
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, No.1, East Jian She Road, Zhengzhou, 450052 China
| | - Mengfei Yi
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, No.1, East Jian She Road, Zhengzhou, 450052 China
| | - Zepeng Yu
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, No.1, East Jian She Road, Zhengzhou, 450052 China
| | - Xinwei Han
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, No.1, East Jian She Road, Zhengzhou, 450052 China
| | - Jianzhuang Ren
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, No.1, East Jian She Road, Zhengzhou, 450052 China
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Lampridis S, Mitsos S, Hayward M, Lawrence D, Panagiotopoulos N. The insidious presentation and challenging management of esophageal perforation following diagnostic and therapeutic interventions. J Thorac Dis 2020; 12:2724-2734. [PMID: 32642181 PMCID: PMC7330325 DOI: 10.21037/jtd-19-4096] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 03/27/2020] [Indexed: 02/06/2023]
Abstract
Diagnostic and therapeutic interventions on the esophagus or adjacent organs are responsible for nearly half of all esophageal perforations. If not recognized at the time of the injury, iatrogenic esophageal perforations can present insidiously and lead to delay in diagnosis, thereby increasing morbidity and mortality. Acute clinical awareness is vital for prompt diagnosis, which is usually confirmed with contrast esophagography and contrast-enhanced computed tomography. After establishment of diagnosis, treatment should be promptly initiated and include fluid-volume resuscitation, cessation of oral intake, nasogastric tube insertion, broad-spectrum antibiotics and analgesia. Primary repair, when feasible, is the treatment of choice. Additional procedures beyond primary repair, such as relief of concomitant obstruction, may be necessary if there is underlying esophageal pathology. Drainage alone can be performed for perforations of the cervical esophagus that cannot be visualized. Esophageal T-tube placement or exclusion and diversion techniques are appropriate in clinically unstable patients and in cases where primary repair is precluded either due to preexisting esophageal disease or extensive esophageal damage. Esophagectomy should be performed in patients with malignancy, end-stage benign esophageal disease or extensive esophageal damage that precludes repair. Endoscopic techniques, including stenting, clipping or vacuum therapy, can be used in select cases. Finally, nonoperative management should be reserved for patients with contained esophageal perforations, limited extraluminal soilage and no evidence of systemic inflammation.
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Affiliation(s)
- Savvas Lampridis
- Thoracic Surgery Department, University College London Hospitals, NHS Foundation Trust, London, UK
| | - Sofoklis Mitsos
- Thoracic Surgery Department, University College London Hospitals, NHS Foundation Trust, London, UK
| | - Martin Hayward
- Thoracic Surgery Department, University College London Hospitals, NHS Foundation Trust, London, UK
| | - David Lawrence
- Thoracic Surgery Department, University College London Hospitals, NHS Foundation Trust, London, UK
| | - Nikolaos Panagiotopoulos
- Thoracic Surgery Department, University College London Hospitals, NHS Foundation Trust, London, UK
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Bi Y, Li J, Yi M, Yu Z, Han X, Ren J. Interventional Protocol for Treatment of Complications after Esophagojejunostomy for Esophagogastric Carcinoma. Gastroenterol Res Pract 2019; 2019:1465301. [PMID: 31871443 PMCID: PMC6913380 DOI: 10.1155/2019/1465301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 10/31/2019] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Anastomotic stenosis and leakage are rare complications after esophagojejunostomy. The management of complications after esophagojejunostomy remains a challenge. We evaluated the outcomes and clinical effectiveness of an alternative interventional protocol. OBJECTIVES To determine the safety and efficacy of interventional treatment for the management of complications after esophagojejunostomy. METHODS This study included 24 consecutive patients with complications after esophagojejunostomy treated using interventional protocol. Patients received balloon dilation or stenting for anastomotic stenosis. Patients with anastomotic leakage received three-tube placement or retrievable covered esophageal stent placement, followed by abscess drainage, nutritional support, and anti-inflammatory treatment. The three tubes and esophageal stents were removed after leakage healing and stenosis ceased. RESULTS Thirteen patients received three-tube method, and 16 patients received covered stent placement. All procedures were technically successful, except for a failure of Y-type esophageal stent placement in one patient. The median retention time of stent and abscess drainage tube was 67.5 days and 87 days, respectively. No perioperative death, esophageal rupture, or massive hemorrhage was found during procedures. During follow-up, 14 patients died of cancer recurrence, and one died of severe pulmonary infection. The 1-, 3-, 5-year survival rates were 39.5%, 23.7%, and 23.7%, respectively. CONCLUSION Interventional protocol is safe, feasible, and efficacious for treatment of complications after esophagojejunostomy.
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Affiliation(s)
- Yonghua Bi
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jindong Li
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Mengfei Yi
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zepeng Yu
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xinwei Han
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jianzhuang Ren
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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18
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Bi Y, Zhu X, Yu Z, Wu G, Han X, Ren J. Interventional radiology protocol for treatment of esophagogastric anastomotic leakage. LA RADIOLOGIA MEDICA 2019; 124:1253-1261. [PMID: 31428958 DOI: 10.1007/s11547-019-01074-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 08/08/2019] [Indexed: 12/20/2022]
Abstract
PURPOSE We aimed to determine the safety, feasibility and efficacy of interventional radiology method for the management of esophagogastric anastomotic leakage. METHODS We retrospectively assessed the medical records of 23 consecutive patients with esophagogastric anastomotic leakage treated using intervention protocol. Patients received three-tube method (abscess drainage tube, gastrointestinal decompression tube and jejunal feeding tube) with or without temporary covered esophageal stent placement. Abscess drainage, anti-inflammatory treatment and nutritional support were performed thereafter. The esophageal stents and three tubes were removed after leakage healing. RESULTS All patient received three-tube method and eight patients received covered stent placement. All operations were technically successful. After a median of 2.4 months, the stents were successfully removed from five patients. No death, esophageal rupture or massive hemorrhage occurred during procedures. The abscess cavity had markedly decreased in seven patients or disappeared in 16 cases. During follow-up, four patients died of cancer recurrence, one died of heart dysfunction and one died of pulmonary infection. The 1-, 3-, 5-year survival rates were 86.4%, 52.3% and 52.3%, respectively. CONCLUSION Interventional radiology protocol is safe, feasible and efficacious for treatment for esophagogastric anastomotic leakage.
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Affiliation(s)
- Yonghua Bi
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, No. 1, East Jian She Road, Zhengzhou, 450052, China
| | - Xiaoyan Zhu
- Department of Histology and Embryology, College of Basic Medicine, Zhengzhou University, Zhengzhou, China
| | - Zepeng Yu
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, No. 1, East Jian She Road, Zhengzhou, 450052, China
| | - Gang Wu
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, No. 1, East Jian She Road, Zhengzhou, 450052, China
| | - Xinwei Han
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, No. 1, East Jian She Road, Zhengzhou, 450052, China.
| | - Jianzhuang Ren
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, No. 1, East Jian She Road, Zhengzhou, 450052, China.
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Abstract
PURPOSE OF REVIEW Esophageal perforations are associated with high morbidity and mortality. As opposed to surgical repair, endoscopic closure techniques have emerged over the years as a more minimally invasive approach for management. Our goal is to discuss different modalities for closure. RECENT FINDINGS Through-the-scope clips (TTSCs), over-the-scope clips (OTSCs), and esophageal stent placement are well known options for closure. We will also discuss the more recent technique of endoscopic suturing for closure of larger defects as well as prevention of esophageal stent migration. For mediastinal collections associated with perforations, a more novel endoluminal vacuum therapy (EVT) for drainage may be an option. Overall, there are several different endoscopic options that can tailored to the specific features of an esophageal perforation. This review will discuss various techniques with which a gastroenterologist or thoracic surgeon should be familiar.
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Affiliation(s)
- Shelly Gurwara
- Section on Gastroenterology, Wake Forest Baptist Health Medical Center, Medical Center Boulevard, Winston-Salem, NC, 27157, USA.
| | - Steven Clayton
- Section on Gastroenterology, Wake Forest Baptist Health Medical Center, Medical Center Boulevard, Winston-Salem, NC, 27157, USA
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20
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Vermeulen BD, Siersema PD. Diagnosis and endoscopic treatment of esophageal leakage: a systematic review. TECHNIQUES IN GASTROINTESTINAL ENDOSCOPY 2019. [DOI: 10.1016/j.tgie.2019.04.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Singh RR, Nussbaum JS, Kumta NA. Endoscopic management of perforations, leaks and fistulas. Transl Gastroenterol Hepatol 2018; 3:85. [PMID: 30505972 DOI: 10.21037/tgh.2018.10.09] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Accepted: 10/19/2018] [Indexed: 12/14/2022] Open
Abstract
The endoscopic management armamentarium of gastrointestinal disruptions including perforations, leaks, and fistulas has slowly but steadily broadened in recent years. Previously limited to surgical or conservative medical management, innovations in advanced endoscopic techniques like natural orifice transluminal endoscopic surgery (NOTES) have paved the path towards development of endoscopic closure techniques. Early recognition of a gastrointestinal defect is the most important independent variable in determining successful endoscopic closure and patient outcome. Some devices including through the scope clips and stents have been well studied for other indications and have produced encouraging results in closure of gastrointestinal perforations, leaks and fistulas. Over the scope clips, endoscopic sutures, vacuum therapy, glue, and cardiac device occluders are other alternative techniques that can be employed for successful endoscopic closure.
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Affiliation(s)
- Ritu Raj Singh
- Dr. Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jeremy S Nussbaum
- Dr. Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Nikhil A Kumta
- Dr. Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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22
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Bowles-Cintron RJ, Perez-Ginnari A, Martinez JM. Endoscopic management of surgical complications. TECHNIQUES IN GASTROINTESTINAL ENDOSCOPY 2018. [DOI: 10.1016/j.tgie.2018.10.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Huh CW, Kim JS, Choi HH, Lee JI, Ji JS, Kim BW, Choi H. Treatment of benign perforations and leaks of the esophagus: factors associated with success after stent placement. Surg Endosc 2018; 32:3646-3651. [PMID: 29442243 DOI: 10.1007/s00464-018-6096-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Accepted: 02/07/2018] [Indexed: 01/25/2023]
Abstract
BACKGROUND Self-expanding metal stent (SEMS) is effective and safe for the treatment of benign esophageal perforations or leaks. The purpose of this study was to identify factors associated with clinical success after SEMS placement. METHODS Patients who received SEMS placement for treatment of benign esophageal perforations or leaks were retrospectively identified. These patients were analyzed for factors associated with clinical success and complications. RESULTS A total of 31 patients underwent stent insertion for benign esophageal perforations (n = 11) or anastomotic leaks (n = 20). Clinical success was achieved in twenty-three patients (74.2%) after initial stent insertion. In multivariate analysis, early stent insertion within 1 day was identified as a significant independent predictor of successful sealing (Odds ratio = 3.14, 95% CI 1.36-7.24; p = 0.013). The anastomotic leak group needed a longer stent dwelling time (≥ 4 weeks) compared to the perforation group (75.0% vs. 27.3%, p = 0.022). CONCLUSIONS Clinical success was significantly associated with early stent insertion. The dwelling time of stent was shorter for benign perforations compared to anastomotic leaks.
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Affiliation(s)
- Cheal Wung Huh
- Division of Gastroenterology, Department of Internal Medicine, College of Medicine, Incheon St. Mary's Hospital, The Catholic University of Korea, 665, Bupyeong-dong, Bupyeong-gu, Incheon, 403-720, Republic of Korea
| | - Joon Sung Kim
- Division of Gastroenterology, Department of Internal Medicine, College of Medicine, Incheon St. Mary's Hospital, The Catholic University of Korea, 665, Bupyeong-dong, Bupyeong-gu, Incheon, 403-720, Republic of Korea.
| | - Hyun Ho Choi
- Division of Gastroenterology, Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 271, Cheon Bo-Ro, Uijeongbu-Si, Gyeonggi-Do, 11765, Republic of Korea.
| | - Ja In Lee
- Division of Gastroenterology, Department of Internal Medicine, College of Medicine, Incheon St. Mary's Hospital, The Catholic University of Korea, 665, Bupyeong-dong, Bupyeong-gu, Incheon, 403-720, Republic of Korea
| | - Jeong-Seon Ji
- Division of Gastroenterology, Department of Internal Medicine, College of Medicine, Incheon St. Mary's Hospital, The Catholic University of Korea, 665, Bupyeong-dong, Bupyeong-gu, Incheon, 403-720, Republic of Korea
| | - Byung-Wook Kim
- Division of Gastroenterology, Department of Internal Medicine, College of Medicine, Incheon St. Mary's Hospital, The Catholic University of Korea, 665, Bupyeong-dong, Bupyeong-gu, Incheon, 403-720, Republic of Korea
| | - Hwang Choi
- Division of Gastroenterology, Department of Internal Medicine, College of Medicine, Incheon St. Mary's Hospital, The Catholic University of Korea, 665, Bupyeong-dong, Bupyeong-gu, Incheon, 403-720, Republic of Korea
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Patient Outcomes After Stent Failure for the Treatment of Acute Esophageal Perforation. Ann Thorac Surg 2018; 106:830-835. [PMID: 29883642 DOI: 10.1016/j.athoracsur.2018.05.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 04/30/2018] [Accepted: 05/09/2018] [Indexed: 01/05/2023]
Abstract
BACKGROUND Esophageal stent placement for acute esophageal perforation has become part of the treatment algorithm for many thoracic surgery programs. Despite high success rates, there are patients for which stent placement is not successful. This investigation summarizes the outcomes of a relatively large group of such patients. METHODS Patients who underwent esophageal stent placement for an acute perforation but required conversion to another form of therapy were identified from a prospectively collected institutional database. Excluded were patients whose perforation was associated with a malignancy. Patient demographics, operative and nonoperative invasive procedures, morbidities, mortality, and 6-month follow-up after discharge were reviewed. RESULTS Between 2008 and 2015, 26 patients who failed to seal their esophageal leak after stent placement were identified. Eighteen (69%) of these patients required an operative repair with primary closure of the perforation. Four (15%) primary repairs had a persistent leak controlled with subsequent stent placement. Four (15%) patients required an esophagectomy with cervical esophagostomy. Three patients (11%), because of comorbid conditions, were referred for hospice care. One patient (3%) refused operative repair and developed a chronic fistula that resolved with subsequent stent placement. CONCLUSIONS Esophageal stent placement continues to be a safe and effective treatment for acute esophageal perforation. Patients whose perforation does not seal with initial stent placement can be treated with primary surgical repair or esophagectomy without increasing their morbidity or mortality or compromising their prognosis.
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Eroglu A, Aydin Y, Yilmaz O. Thoracic perforations-surgical techniques. ANNALS OF TRANSLATIONAL MEDICINE 2018; 6:40. [PMID: 29610732 PMCID: PMC5879524 DOI: 10.21037/atm.2017.04.25] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Accepted: 04/10/2017] [Indexed: 12/29/2022]
Abstract
Esophageal perforation may occur spontaneously, iatrogenically or in connection with traumas. Sepsis may develop in connection with mediastinal and pleural exposure in a very short time as a consequence of disintegration of the esophagus. Esophageal perforation is an emergency accompanied with a high level of mortality and morbidity. Rate of mortality for the perforations in the thoracic region is higher than that in the cervical and abdominal regions. Delay in diagnosis and treatment is the most important factor to affect the mortality. A quick and true diagnosis of esophageal perforation is prerequisite for a successful treatment. There is no certain consensus in relation with the optimal treatment of that life-threatening condition. However, in the event that perforation is detected early in a healthy esophagus, then primary repair is recommended. When it is detected late, nonoperative conservative treatment would be appropriate. The rates of mortality for the operations following a period of 24 h after rupture formation are higher than 50%. Esophagectomy is a type of an operation that is to be considered in the event of an end stage benign esophageal disease or of a large esophageal damage that does not allow primary repair. Significant decrease has been observed in the morbidity and mortality of esophageal perforation due to the improvements in the endoscopical techniques today. Minimally invasive techniques, in which drug eluting stents come first, will become an important step for the treatment of esophageal perforations in the forthcoming years.
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Affiliation(s)
- Atilla Eroglu
- Department of Thoracic Surgery, Medical Faculty, Ataturk University, Erzurum, Turkey
| | - Yener Aydin
- Department of Thoracic Surgery, Medical Faculty, Ataturk University, Erzurum, Turkey
| | - Omer Yilmaz
- Department of Gastroenterology, Medical Faculty, Ataturk University, Erzurum, Turkey
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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: 10] [Impact Index Per Article: 1.4] [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.
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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
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Tellechea JI, Gonzalez JM, Miranda-García P, Culetto A, D'Journo XB, Thomas PA, Barthet M. Role of Endoscopy in the Management of Boerhaave Syndrome. Clin Endosc 2017; 51:186-191. [PMID: 28928355 PMCID: PMC5903076 DOI: 10.5946/ce.2017.043] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Revised: 06/23/2017] [Accepted: 07/03/2017] [Indexed: 11/14/2022] Open
Abstract
Boerhaave syndrome (BS) is a spontaneous esophageal perforation which carries high mortality. Surgical treatment is well established, but the development of interventional endoscopy has proposed new therapies. We expose our experience in a Gastrointestinal and Endoscopy Unit. With a retrospective, observational, open-label, single center, consecutive case series. All patients diagnosed with BS who were managed in our center were included. Treated conservatively, endoscopically or surgically, according to their clinical condition and lesion presentation. Fourteen patients were included. Ten were treated with primary surgery. One conservatively. In total, 7/14 patients required an endoscopic treatment. All required metallic stents deployment, 3 cases over-the-scope-clips concomitantly and one case a novel technique an internal drain. 6/7 cases endoscopically treated achieved complete esophageal healing. In conclusion, endoscopy is an useful tool at all stages BS management: difficult diagnosis, primary treatment in selected patients and as salvage when surgery fails. With mortality rates and outcomes comparables to surgery.
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Affiliation(s)
- Juan Ignacio Tellechea
- Department of Gastroenterology, North Hospital, University of Mediterranean, Chemin des Bourrely, Marseille, France
| | - Jean-Michel Gonzalez
- Department of Gastroenterology, North Hospital, University of Mediterranean, Chemin des Bourrely, Marseille, France
| | - Pablo Miranda-García
- Department of Gastroenterology, North Hospital, University of Mediterranean, Chemin des Bourrely, Marseille, France
| | - Adrian Culetto
- Department of Gastroenterology, North Hospital, University of Mediterranean, Chemin des Bourrely, Marseille, France
| | - Xavier Benoit D'Journo
- Department of Thoracic Surgical, North Hospital, University of Mediterranean, Chemin des Bourrely, Marseille, France
| | - Pascal Alexandre Thomas
- Department of Thoracic Surgical, North Hospital, University of Mediterranean, Chemin des Bourrely, Marseille, France
| | - Marc Barthet
- Department of Gastroenterology, North Hospital, University of Mediterranean, Chemin des Bourrely, Marseille, France
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29
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Sdralis EIK, Petousis S, Rashid F, Lorenzi B, Charalabopoulos A. Epidemiology, diagnosis, and management of esophageal perforations: systematic review. Dis Esophagus 2017; 30:1-6. [PMID: 28575240 DOI: 10.1093/dote/dox013] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Indexed: 12/11/2022]
Abstract
We performed a systematic review of epidemiological, diagnostic, and therapeutic outcomes of esophageal perforations. A systematic review was performed in PubMed database using the key-phrase 'esophageal perforation'. All studies regarding acute esophageal perforations were reviewed and parameters of epidemiology, diagnosis, and management published in the literature from 2005 up to 2015 were included in the study. Studies of postoperative esophageal leaks were excluded. Two researchers performed individually the research, while quality assessment was performed according to GRADE classification. Main outcomes and exposure were overall mortality, perforation-to-admission interval, anatomical position, cause, prevalent symptom at admission, diagnostic tests used, type of initial management (conservative or surgery), healing rate, and fistula complication. There were 1319 articles retrieved, of which 52 studies including 2,830 cases finally met inclusion criteria. Mean duration of study period was 15.2 years. Mean patient age was 58.4 years. Out of 52 studies included, there were 43 studies of very low or low quality included. The overall mortality rate according to extracted data was 13.3% (n = 214, 1,644 patients, 39 studies). Admission before 24 hours was reported in 58.1% of patients (n = 514). Position was thoracic in 72.6% of patients (n = 813, 1,120 patients, 20 studies). Mean cause of perforation was iatrogenic in 46.5% of patients (n = 899, 1,933 patients, 40 studies). Initial management was conservative in 51.3% of cases (n = 904, 1,762 patients, 41 studies) CT confirmed diagnosis in 38.7% of overall cases in which it was used as imaging diagnostic procedure (n = 266), X-ray in 36.6% (n = 231), and endoscopy in 37.4% (n = 343). Sepsis on admission was observed in 23.3% of cases (209 out of 898 patients, 16 studies). The present systematic review highlighted the significant proportion of cases diagnosed with delay over 24 hours, mortality rates ranging over 10% and no consensus regarding optimal therapeutic approach and optimal diagnostic management. As esophageal perforation represents a high-risk clinical condition without consensus regarding optimal management, there should be large multicenter prospective studies or Randomized Controlled Trial (RCT)s performed in order to advance diagnostic and therapeutic approach of such challenging pathology.
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Affiliation(s)
- E Ilias K Sdralis
- Department of Upper Gastrointestinal Surgery, Broomfield Hospital, Mid Essex Hospital Services NHS Trust, England, UK.,Department of Surgery, 424 General Military Hospital, Eukarpia, Thessaloniki, Greece
| | - S Petousis
- Department of Surgery, 424 General Military Hospital, Eukarpia, Thessaloniki, Greece
| | - F Rashid
- Department of Upper Gastrointestinal Surgery, Broomfield Hospital, Mid Essex Hospital Services NHS Trust, England, UK
| | - B Lorenzi
- Department of Upper Gastrointestinal Surgery, Broomfield Hospital, Mid Essex Hospital Services NHS Trust, England, UK
| | - A Charalabopoulos
- Department of Upper Gastrointestinal Surgery, Broomfield Hospital, Mid Essex Hospital Services NHS Trust, England, UK
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30
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Thornblade LW, Cheng AM, Wood DE, Mulligan MS, Saunders MD, He H, Oelschlager BK, Flum DR, Farjah F. A Nationwide Rise in the Use of Stents for Benign Esophageal Perforation. Ann Thorac Surg 2017; 104:227-233. [PMID: 28577842 DOI: 10.1016/j.athoracsur.2017.03.069] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 03/22/2017] [Accepted: 03/27/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND Surgical repair or drainage is the standard treatment for benign esophageal perforation. The United States Food and Drug Administration has approved the use of esophageal stents for the management of malignant esophageal stricture or fistula, or both. We hypothesize that increasing enthusiasm and experience with esophageal stents has led to greater use of stents for the management of benign esophageal perforation. METHODS We performed a retrospective cohort study (2007 to 2014) of patients with benign esophageal perforation using MarketScan (Thomson Reuters, New York, NY), a commercial claims database. Patients had 6 months of follow-up. Regression was used for risk-adjustment. RESULTS Benign esophageal perforation was treated in 659 patients (mean age, 49 years; 41% women), comprising surgical repair in 449 (69%), surgical drainage in 110 (17%), and stent in 100 (15%). Stent use increased from 7% in 2007 to 30% in 2014 (p < 0.001 for trend). Over the same period, surgical repair decreased from 71% to 53% (p = 0.001 for trend), but surgical drainage did not change (p = 0.24). After adjustment for other factors that could vary over time, stent use increased by 28% per year (incidence rate ratio, 1.28; 95% confidence interval, 1.17 to 1.39). Changes in risk-adjusted deaths, discharges home, readmissions, or costs over the same period were not significant (all p > 0.05 for trend). CONCLUSIONS The use of stents for the management of benign esophageal perforation has increased by over fourfold in just 8 years, but short-term outcomes have not changed over time for this population of patients. A national registry for off-label use of esophageal stents may clarify the indications for and risks and benefits of stenting benign esophageal perforations.
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Affiliation(s)
| | - Aaron M Cheng
- Department of Surgery, University of Washington, Seattle, Washington
| | - Douglas E Wood
- Department of Surgery, University of Washington, Seattle, Washington
| | | | - Michael D Saunders
- Division of Gastroenterology, University of Washington, Seattle, Washington
| | - Hao He
- Department of Surgery, University of Washington, Seattle, Washington
| | | | - David R Flum
- Department of Surgery, University of Washington, Seattle, Washington
| | - Farhood Farjah
- Department of Surgery, University of Washington, Seattle, Washington
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31
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Devaraj P, Gavini H. Endoscopic management of postoperative fistulas and leaks. GASTROINTESTINAL INTERVENTION 2017. [DOI: 10.18528/gii160032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Prathab Devaraj
- Department of Gastroenterology, Hepatology, and Nutrition, Banner University Medical Center, Tucson, AZ, USA
| | - Hemanth Gavini
- Department of Gastroenterology, Hepatology, and Nutrition, Banner University Medical Center, Tucson, AZ, USA
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32
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Abstract
Traditionally, gold standard treatment for an acute esophageal perforation has been operative repair. Over the past two decades, there has been a paradigm shift towards the use of esophageal stents. Recent advances in biomaterial allowed a new generation of stents to be manufactured that combined (I) a non-permeable covering; (II) radial force sufficient to occlude a transmural esophageal injury and (III) improved ease of removability. The amalgamation of these developments set the stage for utilizing esophageal stents as part of the management algorithm of an acute esophageal perforation. This provides a safe and less invasive treatment route in lieu of direct primary repair and its well-documented significant failure rate. Esophageal stent placement for failed operative repair or esophageal leaks also had the potential to minimize the need for esophageal resection and diversion. When included in a multimodality hybrid treatment protocol, esophageal stents can optimize healing success rates and minimize the risks of adverse complications. This review summarizes the modern history of esophageal stent use in the treatment of esophageal perforation as well as the evidenced based recommendations for the use of esophageal stent placement in the treatment of acute esophageal perforation.
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Affiliation(s)
- Gabie K B Ong
- Department of Surgery, St. Vincent Hospital, Indianapolis, Indiana, USA
| | - Richard K Freeman
- Division of Thoracic and Cardiovascular Surgery, St. Vincent Hospital, Indianapolis, Indiana, USA
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33
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Mirus M, Heller AR. [Diagnostic investigation in emergency medicine: Why case history is crucial]. Anaesthesist 2017; 66:256-264. [PMID: 28194478 DOI: 10.1007/s00101-017-0280-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 12/09/2016] [Accepted: 01/26/2017] [Indexed: 11/29/2022]
Abstract
We present the preclinical case of a patient reporting chest pain. Pain impeded physical examination. Reviewing the patient's detailed medical history after analgesia revealed a connection between the reported pain and vomiting. This led to a suspicion of organ perforation. Thus, the patient was admitted to a surgical emergency room (ER) and Boerhaave's Syndrome was diagnosed. After deterioration in the ER, cardiopulmonal reanimation (CPR), and successful surgical treatment, the patient was transferred to the intensive care unit (ICU) seven hours after first contact.
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Affiliation(s)
- M Mirus
- Klinik für Anästhesiologie und Intensivtherapie, Universitätsklinikum Carl Gustav Carus, Fetscherstraße 74, 01307, Dresden, Deutschland.
| | - A R Heller
- Klinik für Anästhesiologie und Intensivtherapie, Universitätsklinikum Carl Gustav Carus, Fetscherstraße 74, 01307, Dresden, Deutschland
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34
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Postsurgical Perforation of the Esophagus Can Be Treated Using a Fully Covered Stent in Children. J Pediatr Gastroenterol Nutr 2017; 64:e38-e43. [PMID: 28107284 DOI: 10.1097/mpg.0000000000001235] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
OBJECTIVES Surgery and conservative treatment of esophageal or gastric perforations are both often associated with poor results and carry a high morbidity and mortality rate. The aim of the present study was to evaluate the effectiveness and safety of using fully covered self-expending metallic stents (SEMS) in children with upper digestive leaks. METHODS This retrospective study reviewed all children with esophageal or gastric perforation who were treated with placement of an SEMS from January 2011 to January 2015. Closure of the perforation was the primary outcome measured. Secondary outcomes were the duration of antibiotic therapy and parenteral nutrition, adverse events, and length of hospitalization. RESULTS A total of 19 SEMS were placed in 10 patients (median age: 5.5 years; 5 girls) treated for postanastomotic leaks of esophageal atresia (n = 3), esophagogastroplasty (n = 4), resection of esophageal duplication (n = 1) or perforation during Toupet surgical dismantling (n = 1), and gastric rupture after Nissen surgery (n = 1). The perforation closed in 9 out of 10 patients in a mean of 36 days after stenting (range: 13-158 days). All patients received antibiotic therapy for an average of 17.5 days (3-109 days) and parenteral nutrition for 49 days (17-266 days). During a median follow-up of 8.9 months, 4 out of 9 sealed perforations developed stenosis, which was efficiently treated by endoscopic dilations in 2 patients and surgical redo in 2 patients with dilation-resistant stenosis. CONCLUSIONS Covered stents appear to be beneficial in closing esophageal perforations in children and can avoid the high morbidity of a surgical repair. Stenosis, however, occurred frequently after larger leakages.
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35
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Saxena P, Khashab MA. Endoscopic Management of Esophageal Perforations: Who, When, and How? ACTA ACUST UNITED AC 2017; 15:35-45. [PMID: 28116696 DOI: 10.1007/s11938-017-0117-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Esophageal perforations can be spontaneous or iatrogenic. Although they are a rare occurrence, they are associated with a significant morbidity and mortality. Traditionally, management of esophageal perforation consisted of surgery. However, endoscopic management is now emerging as the primary treatment modality and is less invasive and morbid than surgery. Endoscopic modalities include through-the-scope clips (TTS), over-the-scope clips (OTSC), placement of covered stents, and suturing. Suturing can be used for primary closure of the perforation as well as anchoring of stents to prevent migration. Smaller defects (<2 cm) can be closed with clips (TTS or OTSC), whereas larger defects require a stent placement or suturing to achieve closure. If the perforation is associated with a mediastinal collection, drainage is mandatory and can be done via CT-guided percutaneous drainage, surgery, or endoscopic vacuum therapy.
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Affiliation(s)
- Payal Saxena
- Department of Medicine and Division of Gastroenterology and Hepatology, Royal Prince Alfred Hospital, Sydney, Australia.,Department of Medicine and Division of Gastroenterology and Hepatology, The Johns Hopkins Medical Institutions, 1800 Orleans St, Suite 7125B, Baltimore, MD, 21205, USA
| | - Mouen A Khashab
- Department of Medicine and Division of Gastroenterology and Hepatology, The Johns Hopkins Medical Institutions, 1800 Orleans St, Suite 7125B, Baltimore, MD, 21205, USA.
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36
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Fernández A, González-Carrera V, González-Portela C, Carmona A, de-la-Iglesia M, Vázquez S. Fully covered metal stents for the treatment of leaks after gastric and esophageal surgery. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2017; 107:608-13. [PMID: 26437979 DOI: 10.17235/reed.2015.3765/2015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE The use of fully covered metal stents (FCMS) for the treatment of benign conditions is increasing. The aim of our study was to assess the efficacy of FCMS in the management of post-operative leaks after gastric or esophageal surgery. MATERIAL AND METHODS During a three year period (2011-2013), patients who underwent a surgery related with esophageal or gastric cancer and developed a postoperative anastomotic leak treated with FCMS were prospectively included. RESULTS Fourteen patients were included (11 men, 3 women), with median age of 65 years. Placement of at least one stent was achieved in 13 patients (93% of cases), with initial closure of the leak in 12 of these 13 cases (92.3%). A final success (after removal of the stent) could be demonstrated in 9 cases (69.2%, intention to treat analysis); stent failed only in one case (7.7%) and there were 3 patients (23.1%) not evaluated because death before stent retrieval (not related with the endoscopic procedure). One stent were used in 9 cases (69.2%), and two in 4 (30.8%). Migration was observed in two cases (15.3%). There were no major complications related with the use of stents. There were no complications related with retrieval. CONCLUSIONS The placement of FCMS to achieve the leak closure after esophageal or gastric surgery is an effective and probably safe alternative feasible with minor risks.
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37
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Alonso-Lárraga J, de la Mora Levy J, Hernández Guerrero A, Rodarte-Shade M, Ramírez-Solís M. Fully covered metal stents for the treatment of leaks after esophagogastric oncologic surgery. REVISTA DE GASTROENTEROLOGÍA DE MÉXICO (ENGLISH EDITION) 2017. [DOI: 10.1016/j.rgmxen.2016.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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38
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Herrera A, Freeman RK. The Evolution and Current Utility of Esophageal Stent Placement for the Treatment of Acute Esophageal Perforation. Thorac Surg Clin 2016; 26:305-14. [DOI: 10.1016/j.thorsurg.2016.04.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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39
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van den Berg MW, Kerbert AC, van Soest EJ, Schwartz MP, Bakker CM, Gilissen LPL, van Hooft JE. Safety and efficacy of a fully covered large-diameter self-expanding metal stent for the treatment of upper gastrointestinal perforations, anastomotic leaks, and fistula. Dis Esophagus 2016; 29:572-9. [PMID: 25893629 DOI: 10.1111/dote.12363] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Upper gastrointestinal perforations, fistula, and anastomotic leaks are severe conditions with high mortality. Temporary endoscopic placement of fully covered self-expanding metal stent (fSEMS) has emerged as treatment option. Stent migration is a major drawback of currently used stents. Migration is often attributed to a relatively too small stent diameter as esophageal stents were initially intended for the treatment of strictures. This study aimed to investigate the safety and efficacy of a large-diameter fSEMS for treatment of these conditions. Data were retrospectively collected from patients who received this stent in the Netherlands between March 2011 and August 2013. Clinical success was defined as sufficient leak closure after stent removal as confirmed by endoscopy or X-ray with oral contrast without surgical intervention or placement of another type of stent. Adverse events were graded according a standardized grading system. Stent placement was performed in 34 patients for the following indications: perforation (n = 6), anastomotic leak (n = 26), and fistula (n = 2). Technical success rate was 97% (33/34). Clinical success rate was 44% (15/34) after one stent and 50% (17/34) after an additional stent. There were no severe adverse events and stent-related mortality. The overall adverse event rate was 50% (all graded 'moderate'). There were 14 (41%) stent migrations (complete n = 8, partial n = 6). Other adverse events were bleeding (n = 2) and aspiration pneumonia (n = 1). Reinterventions for failure of the large-diameter fSEMS were placement of another type of fSEMS (n = 4), surgical repair (n = 3), or esophagectomy (n = 1). Eleven patients (32%) died in-hospital because of persisting intrathoracic sepsis (n = 10) or preexistent bowel ischemia (n = 1). This study suggests that temporary placement of a large-diameter fSEMS for the treatment of upper gastrointestinal perforations, fistula, and anastomotic leaks is safe in terms of severe adverse events and stent-related mortality. The larger diameter does not seem to prevent stent migration.
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Affiliation(s)
- M W van den Berg
- Department of Gastroenterology and Hepatology, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - A C Kerbert
- Department of Gastroenterology and Hepatology, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - E J van Soest
- Department of Gastroenterology and Hepatology, Kennemer Gasthuis Hospital, Haarlem, the Netherlands
| | - M P Schwartz
- Department of Gastroenterology and Hepatology, Meander Medical Center, Amersfoort, the Netherlands
| | - C M Bakker
- Department of Gastroenterology and Hepatology, Atrium Medical Center, Heerlen, the Netherlands
| | - L P L Gilissen
- Department of Gastroenterology and Hepatology, Catharina Hospital, Eindhoven, the Netherlands
| | - J E van Hooft
- Department of Gastroenterology and Hepatology, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
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Shehab H, Baron TH. Enteral stents in the management of gastrointestinal leaks, perforations and fistulae. INTERNATIONAL JOURNAL OF GASTROINTESTINAL INTERVENTION 2016. [DOI: 10.18528/gii160006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Hany Shehab
- Gastrointestinal Endoscopy Unit, Kasralainy University Hospital, Cairo University, Cairo, Egypt
| | - Todd H. Baron
- Division of Gastroenterology and Hepatology, Department of Medicine, University of North Carolina, Chapel Hill, NC, USA
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41
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Alonso-Lárraga JO, de la Mora Levy JG, Hernández Guerrero A, Rodarte-Shade M, Ramírez-Solís ME. Fully covered metal stents for the treatment of leaks after esophagogastric oncologic surgery. REVISTA DE GASTROENTEROLOGÍA DE MÉXICO 2016; 82:100-102. [PMID: 27161793 DOI: 10.1016/j.rgmx.2016.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 01/05/2016] [Indexed: 10/21/2022]
Affiliation(s)
- J O Alonso-Lárraga
- Servicio de Endoscopia Gastrointestinal, Instituto Nacional de Cancerología, SSA, Ciudad de México, México.
| | - J G de la Mora Levy
- Servicio de Endoscopia Gastrointestinal, Instituto Nacional de Cancerología, SSA, Ciudad de México, México
| | - A Hernández Guerrero
- Servicio de Endoscopia Gastrointestinal, Instituto Nacional de Cancerología, SSA, Ciudad de México, México
| | - M Rodarte-Shade
- Servicio de Endoscopia Gastrointestinal, Instituto Nacional de Cancerología, SSA, Ciudad de México, México
| | - M E Ramírez-Solís
- Servicio de Endoscopia Gastrointestinal, Instituto Nacional de Cancerología, SSA, Ciudad de México, México
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42
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Treatment of Boerhaave’s Syndrome: Specialized Esophago-Gastric Unit Experience on Twelve Patients. Eur Surg 2016. [DOI: 10.1007/s10353-016-0392-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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43
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Pezzetta E, Kokudo T, Uldry E, Yamaguchi T, Kudo H, Ris HB, Christodoulou M, Vuilleumier H, Halkic N. The surgical management of spontaneous esophageal perforation (Boerhaave's syndrome) ‒ 20 years of experience. Biosci Trends 2016; 10:120-4. [PMID: 27052150 DOI: 10.5582/bst.2016.01009] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Spontaneous esophageal perforation (Boerhaave's syndrome) is an uncommon and challenging condition with significant morbidity and mortality. Surgical treatment is indicated in the large majority of cases and different procedures have been described in this respect. We present the results of a mono-institutional evaluation of the management of spontaneous esophageal perforation over a 20-year period. The charts of 25 patients with spontaneous esophageal perforation treated at the Surgical Department of the University Hospital of Lausanne were retrospectively studied. In the 25 patients, 24 patients were surgically treated and one was managed with conservative treatment. Primary buttressed esophageal repair was performed in 23 cases. Nine postoperative complications were recorded, and the overall mortality was 32%. Despite prompt treatment postoperative morbidity and mortality are still relevant. Early diagnosis and definitive surgical management are the keys for successful outcome in the management of spontaneous esophageal perforation. Primary suture with buttressing should be considered as the procedure of choice. Conservative approach may be applied in very selected cases.
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Effectiveness of Endoscopic Management Using Self-Expandable Metal Stents in a Large Cohort of Patients with Post-bariatric Leaks. Obes Surg 2016; 25:1569-76. [PMID: 25676154 DOI: 10.1007/s11695-015-1596-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND Endoscopic management of post-bariatric surgery leaks using self-expandable metal stents (SEMSs) is an alternative to revisional surgery. We evaluated the effectiveness of a standardized protocol for management of post-bariatric surgery leaks in a large cohort of patients. METHODS Data from patients with anastomotic leaks after bariatric surgery endoscopically treated with partially covered SEMS in our institution between January 2006 and December 2012 were retrospectively reviewed. Patients were divided into four categories: (1) healing of fistula after only one SEMS, (2) healing of fistula after multiple SEMSs and/or additional therapy, (3) healing of fistula after salvage endoscopic procedure despite SEMS failure, and (4) SEMS and endoscopic failure for fistula healing. RESULTS Ninety-one patients (median age 42 years; 33 males) were considered suitable for inclusion. Our standardized stenting policy was successful in 74 patients (81 %). Among the 17 patients with SEMS failure, 6 patients were ultimately healed by internal drainage of the leakage (7 %). Endoscopic treatment failed in 11 patients (12 %). In univariate analysis, male gender (p = 0.024), higher prebariatric surgery BMI (p = 0.025), and shorter delay between surgery and SEMS placement (p = 0.011) were more frequently observed in the one-step treatment group (group 1) as compared to the other groups. In multivariate analysis, gender (p = 0.035) and delay between surgery and SEMS placement (p = 0.042) were independent predictive factors of endoscopic success. CONCLUSIONS Endoscopic management using SEMS for anastomotic leaks after bariatric surgery is effective and may avoid risky surgical reintervention in 81 % of patients. Early stenting was a major significant factor associated with increased success.
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45
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Lázár G, Paszt A, Mán E. Role of endoscopic clipping in the treatment of oesophageal perforations. World J Gastrointest Endosc 2016; 8:13-22. [PMID: 26788259 PMCID: PMC4707319 DOI: 10.4253/wjge.v8.i1.13] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 09/25/2015] [Accepted: 11/11/2015] [Indexed: 02/06/2023] Open
Abstract
With advances in endoscopic technologies, endoscopic clips have been used widely and successfully in the treatment of various types of oesophageal perforations, anastomosis leakages and fistulas. Our aim was to summarize the experience with two types of clips: The through-the-scope (TTS) clip and the over-the-scope clip (OTSC). We summarized the results of oesophageal perforation closure with endoscopic clips. We processed the data from 38 articles and 127 patients using PubMed search. Based on evidence thus far, it can be stated that both clips can be used in the treatment of early (< 24 h), iatrogenic, spontaneous oesophageal perforations in the case of limited injury or contamination. TTS clips are efficacious in the treatment of 10 mm lesions, while bigger (< 20 mm) lesions can be treated successfully with OTSC clips, whose effectiveness is similar to that of surgical treatment. However, the clinical success rate is significantly lower in the case of fistulas and in the treatment of anastomosis insufficiency. Tough prospective randomized multicentre trials, which produce the largest amount of evidence, are still missing. Based on experience so far, endoscopic clips represent a possible therapeutic alternative to surgery in the treatment of oesophageal perforations under well-defined conditions.
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Abstract
BACKGROUND The high morbidity and mortality of esophageal defects show that the clinical challenge in the treatment of this disease still remains. An innovative method which has been developed in recent years for esophageal leakage is endoscopic vacuum therapy. OBJECTIVES A retrospective analysis of all patients treated for esophageal perforation with endoscopic vacuum therapy in our department was carried out. METHODS From November 2006 to October 2013 a total of 35 patients were treated with this method and of these 21 had anastomotic leakage, 7 had iatrogenic perforation due to flexible or rigid endoscopy and 7 patients had esophageal defects of various other origins. Drainage systems with an open pore polyurethane tip were placed using a standard endoscope. The vacuum drainage may be positioned either in the esophageal lumen onto the defect or through the defect into the extraluminal wound cavity. The intraluminal or intracavitary vacuum drainage is connected to an electronically controlled vacuum device and a continuous negative pressure of 125 mmHg is maintained for several days. The esophageal lumen or wound cavity collapses around the drainage resulting in intraluminal evacuation and closure of the defect. Under endoscopic monitoring the vacuum system is changed regularly until stable secondary healing of the intracorporeal wound or closure of the transmural defect is achieved. RESULTS In 32 out of 35 patients (91.4 %) healing of defects was achieved after median treatment duration of 11 days (range 4-78 days). The postoperative anastomotic leakage healed in 20 out of 21 patients (95.2 %) after a median of 11 days (range 4-46 days) of therapy. The defects in the 7 patients who were treated for iatrogenic perforation all healed (100 %) after a median treatment time of 5 days (range 4-7 days). There was one case of a recurrent fistula 75 days after treatment. The 90-day mortality in this series of 35 patients was 5.7 %. DISCUSSION The results of this retrospective study emphasize the increasing importance of endoscopic vacuum therapy in the current literature as an endoscopic treatment method in the management of esophageal perforation and anastomotic leakage.
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Closure of benign leaks, perforations, and fistulas with temporary placement of fully covered metal stents: a retrospective analysis. Surg Laparosc Endosc Percutan Tech 2015; 24:528-36. [PMID: 24710256 DOI: 10.1097/sle.0b013e318293c4d8] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Partially covered self-expanding metal stents (SEMS), have been suggested as an alternative to surgery in the treatment of esophageal fistulas of benign etiology. Nevertheless, uncomplicated removal remains difficult. The use of fully covered (FC) SEMSs could solve this problem. OBJECTIVES To review our experience with FC-SEMS placement in patients with benign upper gastrointestinal leaks or perforations. We wanted to assess successful closure of the perforations and short-term and long-term complications. MATERIALS AND METHODS Multicenter study, including 3 tertiary centers. Retrospective review of patients who underwent FC-SEMS placement for benign perforations. RESULTS Eighty-eight stents were placed in 56 patients. We achieved leak closure in 44 patients (78.6%). There were 18 migrations. All of them could be solved endoscopically. A severe septic situation was associated with a higher mortality rate (27.6% vs. 7.4%; P=0.049) and a lower success rate (34.5% vs. 7.4%; P=0.088), compared with those patients who did not present severe sepsis. However, these differences could not be confirmed by multivariable analysis. The results in the subgroup of 11 patients with leaks after sleeve gastrectomy were also good (73% success without surgery and 0% mortality). CONCLUSIONS Temporary placement of FC-SEMS for benign perforations, fistulas, and leaks is feasible in sealing the leaks. All migrations could be solved endoscopically. It is very important to insert the stent before sepsis is established. This article also would be an addition to the growing body of literature supporting stenting as a good alternative if not standard approach to controlling these leaks.
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Literature Analysis of the Treatment of Benign Esophageal Disease with Stent. Indian J Surg 2015; 78:6-13. [PMID: 27186033 DOI: 10.1007/s12262-015-1294-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Accepted: 05/20/2015] [Indexed: 12/31/2022] Open
Abstract
To analyze the efficacy and safety of benign esophageal disease used biodegradable (BD) stent or metal stent. The English literatures of benign esophageal disease that were treated by biodegradable or metal stents implantation were retrieved and summarized. In all 323 benign esophageal disease, the most common etiologies were benign refractory stricture, surgical anastomotic stricture and esophageal fistula/leak/perforation, but the main characteristics between the two groups were not significantly different. One hundred fifty-four cases were completely healed by using BD stents or self-expandable metal stents (SEMS) (47.7 %). Clinical success was achieved in 47.7 % of all patients and there was no significant difference between BD stents (51 %) and SEMS (46.2 %) (P = 0.472), while stent migration occurred more frequently with SEMS (33.9 %) than with BD stent (19.6 %) (P ≤ 0.05), and tissue in- or overgrowth occurred more frequently with SEMS (22.2 %) than with BD stents (8.8 %) (P ≤ 0.05). Furthermore, the time about degradation of BD stents in esophageal was longer than removal of SEMS from the esophagus (P ≤ 0.05). Placement of BD stents or SEMS provides effective and safe relief for benign esophageal disease. Clinical success and mortality were not significantly different. BD stents offers an advantage of fewer complications. Although stent placement is a viable strategy in patients with benign esophageal disease, the ideal treatment strategy and further randomized trials with large number of patients are needed.
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Full-thickness esophageal perforation after fluoroscopic balloon dilation: incidence and management in 820 adult patients. AJR Am J Roentgenol 2015; 204:1115-9. [PMID: 25905950 DOI: 10.2214/ajr.14.13614] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE The purpose of this study is to investigate the incidence, management, and outcomes of esophageal perforation after fluoroscopic balloon dilation in 820 adult patients with esophageal diseases. MATERIALS AND METHODS Between December 1990 and April 2014, a total of 820 adult patients (age range, 21-93 years) underwent 1869 fluoroscopic balloon dilation sessions (mean, 2.3 sessions/patient; range, 1-29 sessions/patient) for esophageal diseases. We retrospectively reviewed the prospectively collected medical records and images of these patients and collected the data of patients who developed esophageal perforations after fluoroscopic balloon dilation. RESULTS During this period, 12 patients (six men and six women; mean age, 51 years; age range, 28-69 years) developed perforations. The perforation rate was 1.5% per patient and 0.6% per dilation. Among the first eight patients, four who were treated with surgery had perforations 2 cm or larger, and the other four who underwent fasting, parenteral alimentation, and treatment with antibiotics had perforations smaller than 2 cm. The last four patients underwent stent placement immediately after the diagnosis, regardless of the perforation's size. The median hospital stay was 11.5 days. CONCLUSION Fluoroscopic balloon dilation of esophageal diseases is a safe procedure with a low perforation rate. A perforation size greater than 2 cm is considered large and requires aggressive treatment. Although the number of patients with esophageal perforation we treated is relatively small and further clinical trials are needed, temporary stent placement seems to be an initial choice in the management of esophageal perforations after fluoroscopic balloon dilation.
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Liu HC, Chen CH, Chan ML, Chen CH, Huang WC. Management of Esophageal Perforations in Elderly Patients. INT J GERONTOL 2015. [DOI: 10.1016/j.ijge.2015.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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