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Ishihara R. Prevention of esophageal stricture after endoscopic resection. Dig Endosc 2019; 31:134-145. [PMID: 30427076 DOI: 10.1111/den.13296] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 11/08/2018] [Indexed: 01/10/2023]
Abstract
Stricture formation after esophageal endoscopic resection has a negative impact on patients' quality of life because it causes dysphagia and requires multiple endoscopic dilations. Various methods by which to prevent stricture have recently been developed and reported. Among these methods, local steroid injection is the most commonly used and is currently considered the standard method for noncircumferential resection. However, local steroid injection has a limited effect on circumferential resection. Thus, oral steroid administration is used for such cases because it may have a stronger effect than local injection. Steroid treatment, both by local injection and oral administration, is effective and low-cost; however, it may cause fragility of the esophageal wall, resulting in adverse events such as perforation during balloon dilatation. Many innovative approaches have been developed, such as tissue-shielding methods with polyglycolic acid, tissue engineering approaches with autologous oral mucosal epithelial cell sheet transplantation, and stent insertion. These methods may be promising, but they are limited by a scarcity of data. Further investigations are needed to confirm the efficacy of these methods.
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Affiliation(s)
- Ryu Ishihara
- Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan
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2
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Robin EM, Pey PB, de Fornel-Thibaud P, Moissonnier PHM, Freiche V. Esophageal leiomyoma in a dog causing esophageal distension and treated by transcardial placement of a self-expanding, covered, nitinol esophageal stent. J Am Vet Med Assoc 2019; 252:330-335. [PMID: 29346056 DOI: 10.2460/javma.252.3.330] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
CASE DESCRIPTION A 10-year-old spayed female Rottweiler was referred for evaluation because of a 2-month history of regurgitation and weight loss, despite no apparent change in appetite. The dog had received antiemetic and antacid treatment, without improvement. CLINICAL FINDINGS Physical examination revealed a low body condition score (2/5), but other findings were unremarkable. Diffuse, global esophageal dilatation was noted on plain thoracic radiographs, and normal motility was confirmed through videofluoroscopic evaluation of swallowing. Transhepatic ultrasonographic and CT examination revealed a circumferential, intraparietal lesion in the distal portion of the esophagus causing distal esophageal or cardial subobstruction and no metastases. Incisional biopsy of the lesion was performed, and findings of histologic examination supported a diagnosis of esophageal leiomyoma. TREATMENT AND OUTCOME In view of numerous possible complications associated with esophageal surgery, the decision was made to palliatively treat the dog by transcardial placement of a self-expanding, covered, nitinol esophageal stent under endoscopic guidance. Two weeks after stent placement, radiography revealed complete migration of the stent into the gastric lumen. Gastrotomy was performed, and the stent was replaced and fixed in place. Twenty-four months after initial stent placement, the dog had a healthy body condition and remained free of previous clinical signs. CLINICAL RELEVANCE Diffuse benign muscular neoplasia should be considered as a differential diagnosis for acquired esophageal dilatation in adult and elderly dogs. In the dog of this report, transcardial stent placement resulted in resolution of the clinical signs, with no apparent adverse effect on digestive function. The described procedure could be beneficial for nonsurgical treatment of benign esophageal tumors in dogs.
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3
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Xu XY, Chen YF, Tan QG, Chen ZJ, Li Y, Wu WG, Wang XF, Liu YB. Construction of multilayer films with bactericidal and long-term antitumor drug release properties as a non-vascular stent coating for therapy in obstruction. J Mater Chem B 2019; 7:4963-4972. [DOI: 10.1039/c9tb01036j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
An antibacterial and antitumor coating for non-vascular stent was constructed via the layer-by-layer electrostatic self-assembly method.
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Affiliation(s)
- Xiao-yan Xu
- School of Materials Science and Engineering
- Key Laboratory for Advanced Civil Engineering Materials (Ministry of Education)
- Tongji University
- Shanghai 201804
- P. R. China
| | - Yan-fang Chen
- School of Materials Science and Engineering
- Key Laboratory for Advanced Civil Engineering Materials (Ministry of Education)
- Tongji University
- Shanghai 201804
- P. R. China
| | - Qing-gang Tan
- School of Materials Science and Engineering
- Key Laboratory for Advanced Civil Engineering Materials (Ministry of Education)
- Tongji University
- Shanghai 201804
- P. R. China
| | - Zhi-jie Chen
- School of Materials Science and Engineering
- Key Laboratory for Advanced Civil Engineering Materials (Ministry of Education)
- Tongji University
- Shanghai 201804
- P. R. China
| | - Yan Li
- School of Materials Science and Engineering
- Key Laboratory for Advanced Civil Engineering Materials (Ministry of Education)
- Tongji University
- Shanghai 201804
- P. R. China
| | - Wen-guang Wu
- Department of General Surgery
- Xinhua Hospital
- Affiliated to Shanghai JiaoTong University
- School of Medicine
- Shanghai 200092
| | - Xue-feng Wang
- Department of General Surgery
- Xinhua Hospital
- Affiliated to Shanghai JiaoTong University
- School of Medicine
- Shanghai 200092
| | - Ying-bin Liu
- Department of General Surgery
- Xinhua Hospital
- Affiliated to Shanghai JiaoTong University
- School of Medicine
- Shanghai 200092
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4
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Roses RE, Folkert IW, Krouse RS. Malignant Bowel Obstruction: Reappraising the Value of Surgery. Surg Oncol Clin N Am 2018; 27:705-715. [PMID: 30213414 DOI: 10.1016/j.soc.2018.05.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Urgent palliative surgery in the setting of advanced malignancy is associated with significant morbidity, mortality, and cost. Malignant bowel obstruction is the most frequent indication for such intervention. Traditional surgical dogma is often invoked to justify associated risks and cost, but little evidence exists to support surgical over nonsurgical approaches. Evolving evidence may provide more meaningful guidance for treatment selection.
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Affiliation(s)
- Robert E Roses
- Department of Surgery, University of Pennsylvania Perelman School of Medicine, Hospital of the University of Pennsylvania, 3400 Spruce Street, 4 Silverstein Pavilion, Philadelphia, PA 19104, USA.
| | - Ian W Folkert
- Department of Surgery, University of Pennsylvania Perelman School of Medicine, Hospital of the University of Pennsylvania, 3400 Spruce Street, 4 Maloney Building, Philadelphia, PA 19104, USA
| | - Robert S Krouse
- Department of Surgery, University of Pennsylvania Perelman School of Medicine, Corporal Michael J. Crescenz VA Medical Center, 3900 Woodland Ave, Philadelphia, PA 19104, USA
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5
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Progress on the Prevention of Esophageal Stricture after Endoscopic Submucosal Dissection. Gastroenterol Res Pract 2018; 2018:1696849. [PMID: 29686699 PMCID: PMC5857296 DOI: 10.1155/2018/1696849] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Accepted: 01/28/2018] [Indexed: 12/13/2022] Open
Abstract
Endoscopic submucosal dissection (ESD) has been widely accepted as an effective, minimally invasive treatment for superficial esophageal cancers. However, esophageal stricture often occurs in patients with large mucosal defects after ESD. In this review, we discuss various approaches recently researched to prevent esophageal strictures after ESD. These approaches can be classified as pharmacological treatments, esophageal stent treatments, and tissue engineering approaches. Most of the preventive approaches still have their limitations and require further research. With the improvement of current therapies, ESD can be more widely utilized as a minimally invasive treatment with minimal complications.
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6
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Neri A, Marrelli D, Voglino C, Di Mare G, Ferrara F, Marini M, Roviello F. Recurrence after surgery in esophago-gastric junction adenocarcinoma: Current management and future perspectives. Surg Oncol 2016; 25:355-363. [PMID: 27916166 DOI: 10.1016/j.suronc.2016.08.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 08/10/2016] [Accepted: 08/12/2016] [Indexed: 02/07/2023]
Abstract
Recurrent esophago-gastric junction adenocarcinoma is not a rare event and its correct management is still debated. Many approaches for the treatment of these patients exist, but only few studies compare the different techniques. Most of the studies are retrospectives series and describe the experiences of single institutions in the treatment of recurrent esophageal and esophago-gastric junction cancers. Nowadays surgery is still the main and only curative treatment. Other alternative palliative therapies could be endoscopic stent placement and balloon dilation, photodynamic therapy, thermal tumor ablation (laser photoablation and Argon plasma coagulation), radiation therapy and brachytherapy, and chemotherapy. The aim of this review is to investigate the different rates, patterns and timings of recurrence of this tumor, and to explain the various approaches used for the treatment of recurrent esophago-gastric junction cancer.
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Affiliation(s)
- Alessandro Neri
- Department of Medicine, Surgery and Neurosciences - Unit of General Surgery and Surgical Oncology, University of Siena, Viale Bracci - Policlinico "Le Scotte" 53100, Siena, Italy
| | - Daniele Marrelli
- Department of Medicine, Surgery and Neurosciences - Unit of General Surgery and Surgical Oncology, University of Siena, Viale Bracci - Policlinico "Le Scotte" 53100, Siena, Italy
| | - Costantino Voglino
- Department of Medicine, Surgery and Neurosciences - Unit of General Surgery and Surgical Oncology, University of Siena, Viale Bracci - Policlinico "Le Scotte" 53100, Siena, Italy.
| | - Giulio Di Mare
- Department of Medicine, Surgery and Neurosciences - Unit of General Surgery and Surgical Oncology, University of Siena, Viale Bracci - Policlinico "Le Scotte" 53100, Siena, Italy
| | - Francesco Ferrara
- Department of Medicine, Surgery and Neurosciences - Unit of General Surgery and Surgical Oncology, University of Siena, Viale Bracci - Policlinico "Le Scotte" 53100, Siena, Italy
| | - Mario Marini
- Department of Medicine, Surgery and Neurosciences - Unit of Gastroenterology and Digestive Endoscopy, University of Siena, Viale Bracci - Policlinico "Le Scotte" 53100, Siena, Italy
| | - Franco Roviello
- Department of Medicine, Surgery and Neurosciences - Unit of General Surgery and Surgical Oncology, University of Siena, Viale Bracci - Policlinico "Le Scotte" 53100, Siena, Italy
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7
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Folkert IW, Roses RE. Value in palliative cancer surgery: A critical assessment. J Surg Oncol 2016; 114:311-5. [PMID: 27393738 DOI: 10.1002/jso.24303] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 04/22/2016] [Indexed: 12/11/2022]
Abstract
Emergency operations are associated with increased morbidity, mortality, and cost compared to elective operations. Palliative and emergent surgery for patients with advanced malignancies is associated with additional risk and remains controversial. Emergent or palliative interventions can be broadly categorized according to indication. Tumor related complications (bleeding, obstruction, or perforation) merit specific consideration, as do specific presentations such as pneumoperitoneum, pneumatosis intestinalis, or peritonitis from other causes that may arise during active therapy for malignancies. Although nonoperative, endoscopic, and interventional treatment modalities are frequently available, surgery remains the only effective therapy in selected situations such as small intestinal obstruction and tumor perforation. Selection of patients for surgery requires consideration of factors including overall prognosis, performance status, and patients' priorities. Selection and risk assessment tools underscore the limited capacity of patients' with higher risk features for durable recovery but do not supplant nuanced clinical judgment. J. Surg. Oncol. 2016;114:311-315. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Ian W Folkert
- Department of Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Robert E Roses
- Department of Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
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8
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Abstract
Flexible endoscopy, a minimally invasive diagnostic and potentially therapeutic tool, has become more available over the past decades. A fiberscope is used to visualize the lumen of the area of interest and collect tissue or fluid samples for evaluation. Samples can be submitted for histopathology, cytologic analysis, and bacterial culture. Flexible endoscopy is being investigated. This article provides a brief review of equipment and basic flexible endoscopy followed by an overview of advanced flexible endoscopic procedures that focuses on the gastrointestinal tract. The procedures included here may become more readily available and improve diagnosis and treatment.
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9
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Uno K, Iijima K, Koike T, Shimosegawa T. Useful strategies to prevent severe stricture after endoscopic submucosal dissection for superficial esophageal neoplasm. World J Gastroenterol 2015; 21:7120-7133. [PMID: 26109798 PMCID: PMC4476873 DOI: 10.3748/wjg.v21.i23.7120] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 03/24/2015] [Accepted: 04/28/2015] [Indexed: 02/06/2023] Open
Abstract
The minimal invasiveness of endoscopic submucosal dissection (ESD) prompted us to apply this technique to large-size early esophageal squamous cell carcinoma and Barrett’s adenocarcinoma, despite the limitations in the study population and surveillance duration. A post-ESD ulceration of greater than three-fourths of esophageal circumference was advocated as an important risk factor for refractory strictures that require several sessions of dilation therapy. Most of the preoperative conditions are asymptomatic, but dilatation treatment for dysphagia associated with the stricture has potential risks of severe complications and a worsening of quality of life. Possible mechanisms of dysphasia were demonstrated based on dysmotility and pathological abnormalities at the site: (1) delayed mucosal healing; (2) severe inflammation and disorganized fibrosis with abundant extracellular matrices in the submucosa; and (3) atrophy in the muscularis proper. However, reports on the administration of anti-scarring agents, preventive dilation therapies, and regenerative medicine demonstrated limited success in stricture prevention, and there were discrepancies in the study designs and protocols of these reports. The development and consequent long-term assessments of new prophylactic technologies on the promotion of wound healing and control of the inflammatory/tumor microenvironment will require collaboration among various research fields because of the limited accuracy of preoperative staging and high-risk of local recurrence.
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10
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Prevention and treatment of esophageal stenosis after endoscopic submucosal dissection for early esophageal cancer. Gastroenterol Res Pract 2014; 2014:457101. [PMID: 25386186 DOI: 10.1155/2014/457101] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Accepted: 08/31/2014] [Indexed: 01/10/2023] Open
Abstract
Endoscopic submucosal dissection (ESD) for the treatment of esophageal mucosal lesions is associated with a risk of esophageal stenosis, especially for near-circumferential or circumferential esophageal mucosal defects. Here, we review historic and modern studies on the prevention and treatment of esophageal stenosis after ESD. These methods include prevention via pharmacological treatment, endoscopic autologous cell transplantation, endoscopic esophageal dilatation, and stent placement. This short review will focus on direct prevention and treatment, which may help guide the way forward.
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11
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Pavlidis TE, Pavlidis ET. Role of stenting in the palliation of gastroesophageal junction cancer: A brief review. World J Gastrointest Surg 2014; 6:38-41. [PMID: 24672648 PMCID: PMC3964413 DOI: 10.4240/wjgs.v6.i3.38] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 12/21/2013] [Accepted: 01/20/2014] [Indexed: 02/06/2023] Open
Abstract
Gastroesophageal junction cancer has an increasing incidence in western countries. It is inoperable when first manifested in more than 50% of cases. So, palliation is the only therapeutic option for the advanced disease to relieve dysphagia and its consequences in weakened patients with an estimated mean survival under 6 mo. This article has tried to identify trends focusing on current information about the best palliative treatment, with an emphasis on the role of stenting. Self-expanding stent placement, either metal or plastic, is the main management option. However, this anatomical location creates some particular problems for stent safety and effectiveness which may be overcome by properly designed novel stents. The stents ensure a good quality of life and must be preferred over other alternative methods of loco-regional modalities, i.e., external radiation, laser thermal or photodynamic therapy. Although stent placement is generally a simple, safe and effective method, there are sometimes complications, increasing the morbidity and mortality rate. Bypass operative procedures have now been abandoned as a first choice. The stomach instead of the colon must be used for a bypass operation when it is needed. Chemotherapy, despite the toxicity, and intraluminal radiation (brachytherapy) have a well-defined role.
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12
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Pollard RE. Imaging evaluation of dogs and cats with Dysphagia. ISRN VETERINARY SCIENCE 2012; 2012:238505. [PMID: 23762579 PMCID: PMC3671744 DOI: 10.5402/2012/238505] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2012] [Accepted: 09/19/2012] [Indexed: 01/20/2023]
Abstract
The current literature is reviewed in this paper regarding the application of diagnostic imaging in the evaluation of swallowing disorders of the dog. The applications of radiography, contrast radiography, and contrast videofluoroscopy are discussed with pertinent case examples provided for emphasis. The indications for image-guided interventions are also described.
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Affiliation(s)
- Rachel E Pollard
- Department of Surgical and Radiological Sciences, Davis School of Veterinary Medicine, The University of California, Davis, CA 95616, USA
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13
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Abstract
Esophageal cancer has traditionally been a disease with poor long term outcomes in terms of both survival and quality of life. In combination with surgical and pharmacologic therapy, nutrition support has been demonstrated to improve patient tolerance of treatment, quality of life, and longterm outcomes. An aggressive multi-disciplinary approach is warranted with nutrition support remaining a cornerstone in management. Historically, nutrition support has focused on adequate caloric provision to prevent weight loss and allow for tolerance of treatment regimens. Alterations in metabolism occur in these patients making their use of available calories inefficient and the future of nutritional support may lie in the ability to alter this deranged metabolism. The purpose of this article is to review the current literature surrounding the etiology, treatment, and role of nutrition support in improving outcomes in esophageal cancer.
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Hansen KS, Weisse C, Berent AC, Dunn M, Caceres AV, Todd KL, Diroff JS. Use of a self-expanding metallic stent to palliate esophageal neoplastic obstruction in a dog. J Am Vet Med Assoc 2012; 240:1202-7. [DOI: 10.2460/javma.240.10.1202] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Kim JH, Shin JH, Song HY. Benign strictures of the esophagus and gastric outlet: interventional management. Korean J Radiol 2010; 11:497-506. [PMID: 20808692 PMCID: PMC2930157 DOI: 10.3348/kjr.2010.11.5.497] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2010] [Accepted: 02/16/2010] [Indexed: 12/16/2022] Open
Abstract
Benign strictures of the esophagus and gastric outlet are difficult to manage conservatively and they usually require intervention to relieve dysphagia or to treat the stricture-related complications. In this article, authors review the non-surgical options that are used to treat benign strictures of the esophagus and gastric outlet, including balloon dilation, temporary stent placement, intralesional steroid injection and incisional therapy.
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Affiliation(s)
- Jin Hyoung Kim
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
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Kim JH, Song HY, Hu HT, Kang YK, Jung HY, Yook JH, Kim BS. Palliative treatment of malignant gastric outlet obstructions with a large-diameter metallic stent: prospective preliminary study. J Vasc Interv Radiol 2010; 21:1125-8. [PMID: 20537557 DOI: 10.1016/j.jvir.2010.03.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2009] [Revised: 10/23/2009] [Accepted: 03/19/2010] [Indexed: 12/19/2022] Open
Abstract
Large-diameter (24 mm) stent placement was prospectively performed in seven patients with mild malignant gastric outlet obstruction (ie, allowing passage of adult endoscope) or unusual obstruction location. The degree of dysphagia was categorized into five grades: 0 (regular diet), 1 (some solid food), 2 (soft diet), 3 (liquid diet), and 4 (complete dysphagia). One month after stent placement, all patients had improvement of at least one grade in their level of dysphagia. Large-diameter stent placement may be clinically effective in gastric outlet obstruction cases with a high risk of stent migration as a result of mild obstructions or unusual obstruction location.
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Affiliation(s)
- Jin Hyoung Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 388-1, Poongnap-2dong, Songpa-gu, Seoul, 138-736, Korea
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Park JG, Jung GS, Oh KS, Park SJ. Double-layered PTFE-covered nitinol stents: experience in 32 patients with malignant esophageal strictures. Cardiovasc Intervent Radiol 2009; 33:772-9. [PMID: 19787398 DOI: 10.1007/s00270-009-9718-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2009] [Accepted: 08/31/2009] [Indexed: 02/07/2023]
Abstract
We evaluated the effectiveness of a double-layered polytetrafluoroethylene (PTFE)-covered nitinol stent in the palliative treatment of malignant esophageal strictures. A double-layered PTFE-covered nitinol stent was designed to reduce the propensity to migration of conventional covered stent. The stent consists of an inner PTFE-covered stent and an outer uncovered nitinol stent tube. With fluoroscopic guidance, the stent was placed in 32 consecutive patients with malignant esophageal strictures. During the follow-up period, the technical and clinical success rates, complications, and cumulative patient survival and stent patency were evaluated. Stent placement was technically successful in all patients, and no procedural complications occurred. After stent placement, the symptoms of 30 patients (94%) showed improvement. During the mean follow-up of 103 days (range, 9-348 days), 11 (34%) of 32 patients developed recurrent symptoms due to tumor overgrowth in five patients (16%), tumor ingrowth owing to detachment of the covering material (PTFE) apart from the stent wire in 3 (9%), mucosal hyperplasia in 2 (6%), and stent migration in 1 (3%). Ten of these 11 patients were treated by means of placing a second covered stent. Thirty patients died, 29 as a result of disease progression and 1 from aspiration pneumonia. The median survival period was 92 days. The median period of primary stent patency was 190 days. The double-layered PTFE-covered nitinol stent seems to be effective for the palliative treatment of malignant esophageal strictures. We believe that the double-layer configuration of this stent can contribute to decreasing the stent's migration rate.
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Affiliation(s)
- Jung Gu Park
- Department of Radiology, Kosin University College of Medicine, 34 Amnam-Dong Seo-Gu, Busan, 602-702, South Korea
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Palliative treatment of inoperable malignant tracheobronchial obstruction: temporary stenting combined with radiation therapy and/or chemotherapy. AJR Am J Roentgenol 2009; 193:W38-42. [PMID: 19542381 DOI: 10.2214/ajr.08.2037] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE The purpose of our study was to evaluate the clinical results of temporary stenting followed by radiation and/or chemotherapy in patients with inoperable malignant tracheobronchial strictures. CONCLUSION Temporary stenting combined with radiation therapy and/or chemotherapy may be clinically effective in the palliative treatment of patients with malignant tracheobronchial strictures. Stent placement may serve as an effective bridge to radiation and/or chemotherapy, allowing the latter to consolidate durable relief of obstructing symptoms by reducing tumor burden. Furthermore, our treatment strategy may increase patients' quality of life by reducing stent-related complications.
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Metallic stent placement in the palliative treatment of malignant gastric outlet obstructions: primary gastric carcinoma versus pancreatic carcinoma. AJR Am J Roentgenol 2009; 193:241-7. [PMID: 19542420 DOI: 10.2214/ajr.08.1760] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVE The objective of our study was to compare the clinical effectiveness of metallic stent placement for relief of gastric outlet obstruction caused by gastric carcinoma and pancreatic carcinoma. MATERIALS AND METHODS A total of 207 patients with gastric outlet obstruction caused by inoperable gastric carcinoma (n = 147) or pancreatic carcinoma (n = 60) underwent metallic stent placement. RESULTS Technical success of metallic stent placement was achieved in all patients. Clinical success was achieved in 97% and 93% of patients with gastric and pancreatic carcinoma, respectively (p = 0.286). The overall complication rate did not differ significantly between the gastric (29%) and pancreatic (23%) carcinoma groups (p = 0.441). Stent collapse was significantly more frequent in the gastric carcinoma group (11%) than the pancreatic carcinoma group (2%) (p = 0.027), whereas serious complications, including gastrointestinal bleeding and intestinal perforation, occurred more frequently in the pancreatic (7%) than the gastric (1%) carcinoma group (p = 0.026). The cumulative survival period was significantly longer in the gastric carcinoma (median, 153 days) than the pancreatic carcinoma (median, 90 days) group (p = 0.041), but cumulative stent patency did not differ significantly between the gastric carcinoma (median, 350 days) and pancreatic carcinoma (median, 385 days) groups (p = 0.415). CONCLUSION Metallic stent placement was clinically effective in the palliative treatment of gastric outlet obstruction in patients with gastric and pancreatic carcinoma. The two groups differed significantly in the rates of stent collapse and serious complications and patient survival after stent placement.
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