Stent placement for esophageal strictures: an update

References

• Piotet E, Escher A, Monnier P. Esophageal and pharyngeal strictures: report on 1,862 endoscopic dilatations using the Savary-Gilliard technique. Eur. Arch. Otorhinolaryngol.265(3), 357–364 (2008).
   PubMed Web of Science ®Google Scholar
• Siersema PD. Stenting for benign esophageal strictures. Endoscopy41(4), 363–373 (2009).
   PubMed Web of Science ®Google Scholar
• Hill JL, Norberg HP, Smith MD et al. Clinical technique and success of the esophageal stent to prevent corrosive strictures. J. Pediatr. Surg.11(3), 443–450 (1976).
   Google Scholar
• Mayoral W, Fleischer D, Salcedo J et al. Nonmalignant obstruction is a common problem with metal stents in the treatment of esophageal cancer. Gastrointest. Endosc.51(5), 556–559 (2000).
   PubMed Web of Science ®Google Scholar
• Hirdes MM, Siersema PD, Houben MH et al. Stent-in-stent technique for removal of embedded esophageal self-expanding metal stents. Am. J. Gastroenterol.106(2), 286–293 (2011).
   PubMed Web of Science ®Google Scholar
• Sharma P, Kozarek R. Role of esophageal stents in benign and malignant diseases. Am. J. Gastroenterol.105(2), 258–273 (2010).
   PubMed Web of Science ®Google Scholar
• Conio M, Repici A, Battaglia G et al. A randomized prospective comparison of self-expandable plastic stents and partially covered self-expandable metal stents in the palliation of malignant esophageal dysphagia. Am. J. Gastroenterol.102(12), 2667–2677 (2007).
   PubMed Web of Science ®Google Scholar
• Verschuur EM, Repici A, Kuipers EJ et al. New design esophageal stents for the palliation of dysphagia from esophageal or gastric cardia cancer: a randomized trial. Am. J. Gastroenterol.103(2), 304–312 (2008).
   PubMed Web of Science ®Google Scholar
• van Boeckel PG, Repici A, Vleggaar FP et al. A new metal stent with a controlled-release system for palliation of malignant dysphagia: a prospective, multicenter study. Gastrointest. Endosc.71(3), 455–460 (2010).
   PubMedGoogle Scholar
• van Boeckel PG, Siersema PD, Sturgess R et al. A new partially covered metal stent for palliation of malignant dysphagia: a prospective follow-up study. Gastrointest. Endosc.72(6), 1269–1273 (2010).
   Google Scholar
• Siersema PD, Hop WC, van BM et al. A comparison of 3 types of covered metal stents for the palliation of patients with dysphagia caused by esophagogastric carcinoma: a prospective, randomized study. Gastrointest. Endosc.54(2), 145–153 (2001).
   PubMed Web of Science ®Google Scholar
• Kim ES, Jeon SW, Park SY et al. Comparison of double-layered and covered Niti-S stents for palliation of malignant dysphagia. J. Gastroenterol. Hepatol.24(1), 114–119 (2009).
   PubMedGoogle Scholar
• Verschuur EM, Homs MY, Steyerberg EW et al. A new esophageal stent design (Niti-S stent) for the prevention of migration: a prospective study in 42 patients. Gastrointest. Endosc.63(1), 134–140 (2006).
   PubMed Web of Science ®Google Scholar
• Eloubeidi MA, Lopes TL. Novel removable internally fully covered self-expanding metal esophageal stent: feasibility, technique of removal, and tissue response in humans. Am. J. Gastroenterol.104(6), 1374–1381 (2009).
   PubMed Web of Science ®Google Scholar
• Uitdehaag MJ, van Hooft JE, Verschuur EM et al. A fully-covered stent (Alimaxx-E) for the palliation of malignant dysphagia: a prospective follow-up study. Gastrointest. Endosc.70(6), 1082–1089 (2009).
   PubMedGoogle Scholar
• Wilson JA, DeLegge MH. Attempted removal and subsequent fragmentation of 3 self-expanding metal stents. Gastrointest. Endosc.70(2), 391–393 (2009).
   Google Scholar
• Senousy BE, Gupte AR, Draganov PV et al. Fully covered Alimaxx esophageal metal stents in the endoscopic treatment of benign esophageal diseases. Dig. Dis. Sci.55(12), 3399–3403 (2010).
   PubMed Web of Science ®Google Scholar
• Uitdehaag MJ, Siersema PD, Spaander MC et al. A new fully covered stent with antimigration properties for the palliation of malignant dysphagia: a prospective cohort study. Gastrointest. Endosc.71(3), 600–605 (2010).
   PubMedGoogle Scholar
• Repici A, Conio M, De Angelis C et al. Temporary placement of an expandable polyester silicone-covered stent for treatment of refractory benign esophageal strictures. Gastrointest. Endosc.60(4), 513–519 (2004).
   PubMed Web of Science ®Google Scholar
• Holm AN, de la Mora Levy JG, Gostout CJ et al. Self-expanding plastic stents in treatment of benign esophageal conditions. Gastrointest. Endosc.67(1), 20–25 (2008).
   PubMed Web of Science ®Google Scholar
• Dua KS, Vleggaar FP, Santharam R et al. Removable self-expanding plastic esophageal stent as a continuous, non-permanent dilator in treating refractory benign esophageal strictures: a prospective two-center study. Am. J. Gastroenterol.103(12), 2988–2994 (2008).
   PubMed Web of Science ®Google Scholar
• Repici A, Hassan C, Sharma P et al. Systematic review: the role of self-expanding plastic stents for benign oesophageal strictures. Aliment Pharmacol. Ther.31(12), 1268–1275 (2010).
   PubMed Web of Science ®Google Scholar
• Repici A, Vleggaar FP, Hassan C et al. Efficacy and safety of biodegradable stents for refractory benign esophageal strictures: the BEST (Biodegradable Esophageal Stent) study. Gastrointest. Endosc.72(5), 927–934 (2010).
   PubMed Web of Science ®Google Scholar
• van Boeckel PG, Vleggaar FP, Siersema PD. A comparison of temporary self-expanding plastic and biodegradable stents for refractory benign esophageal strictures. Clin. Gastroenterol. Hepatol.9(8), 653–659 (2011).
   PubMed Web of Science ®Google Scholar
• Ferlay J, Shin HR, Bray F et al. Estimates of worldwide burden of cancer in 2008: GLOBOCAN 2008. Int. J. Cancer127(12), 2893–2917 (2010).
   PubMed Web of Science ®Google Scholar
• Parkin DM, Bray F, Ferlay J et al. Global cancer statistics, 2002. CA Cancer J. Clin.55(2), 74–108 (2005).
   PubMed Web of Science ®Google Scholar
• Devesa SS, Blot WJ, Fraumeni JF Jr. Changing patterns in the incidence of esophageal and gastric carcinoma in the United States. Cancer83(10), 2049–2053 (1998).
   PubMed Web of Science ®Google Scholar
• Blot WJ, Devesa SS, Kneller RW et al. Rising incidence of adenocarcinoma of the esophagus and gastric cardia. JAMA265(10), 1287–1289 (1991).
   PubMed Web of Science ®Google Scholar
• Siersema PD. New developments in palliative therapy. Best Pract. Res. Clin. Gastroenterol.20(5), 959–978 (2006).
   Google Scholar
• Homs MY, Steyerberg EW, Eijkenboom WM et al. Single-dose brachytherapy versus metal stent placement for the palliation of dysphagia from oesophageal cancer: multicentre randomised trial. Lancet364(9444), 1497–1504 (2004).
   PubMed Web of Science ®Google Scholar
• Bergquist H, Wenger U, Johnsson E et al. Stent insertion or endoluminal brachytherapy as palliation of patients with advanced cancer of the esophagus and gastroesophageal junction. Results of a randomized, controlled clinical trial. Dis. Esophagus18(3), 131–139 (2005).
   PubMed Web of Science ®Google Scholar
• Wenger U, Johnsson E, Bergquist H et al. Health economic evaluation of stent or endoluminal brachytherapy as a palliative strategy in patients with incurable cancer of the oesophagus or gastro–oesophageal junction: results of a randomized clinical trial. Eur. J. Gastroenterol. Hepatol.17(12), 1369–1377 (2005).
   PubMed Web of Science ®Google Scholar
• Steyerberg EW, Homs MY, Stokvis A et al. Stent placement or brachytherapy for palliation of dysphagia from esophageal cancer: a prognostic model to guide treatment selection. Gastrointest. Endosc.62(3), 333–340 (2005).
   PubMed Web of Science ®Google Scholar
• Ogilvie AL, Dronfield MW, Ferguson R et al. Palliative intubation of oesophagogastric neoplasms at fibreoptic endoscopy. Gut23(12), 1060–1067 (1982).
   PubMed Web of Science ®Google Scholar
• Sabharwal T, Hamady MS, Chui S et al. A randomised prospective comparison of the Flamingo Wallstent and Ultraflex stent for palliation of dysphagia associated with lower third oesophageal carcinoma. Gut52(7), 922–926 (2003).
   PubMed Web of Science ®Google Scholar
• Homs MY, Steyerberg EW, Kuipers EJ et al. Causes and treatment of recurrent dysphagia after self-expanding metal stent placement for palliation of esophageal carcinoma. Endoscopy36(10), 880–886 (2004).
   PubMed Web of Science ®Google Scholar
• Zhang W, Meng WJ, Zhou ZG. Multiple perforations of the jejunum caused by a migrated esophageal stent. Endoscopy43(Suppl. 2), E145–E146 (2011).
   Google Scholar
• Ko HK, Song HY, Shin JH et al. Fate of migrated esophageal and gastroduodenal stents: experience in 70 patients. J. Vasc. Interv. Radiol.18(6), 725–732 (2007).
   Google Scholar
• Verschuur EM, Steyerberg EW, Kuipers EJ et al. Effect of stent size on complications and recurrent dysphagia in patients with esophageal or gastric cardia cancer. Gastrointest. Endosc.65(4), 592–601 (2007).
   PubMedGoogle Scholar
• Dua KS, Kozarek R, Kim J et al. Self-expanding metal esophageal stent with anti-reflux mechanism. Gastrointest. Endosc.53(6), 603–613 (2001).
   PubMed Web of Science ®Google Scholar
• Homs MY, Wahab PJ, Kuipers EJ et al. Esophageal stents with antireflux valve for tumors of the distal esophagus and gastric cardia: a randomized trial. Gastrointest. Endosc.60(5), 695–702 (2004).
   PubMed Web of Science ®Google Scholar
• Sabharwal T, Gulati MS, Fotiadis N et al. Randomised comparison of the FerX Ella antireflux stent and the ultraflex stent: proton pump inhibitor combination for prevention of post-stent reflux in patients with esophageal carcinoma involving the esophago–gastric junction. J. Gastroenterol. Hepatol.23(5), 723–728 (2008).
   PubMedGoogle Scholar
• Lee S, Osugi H, Tokuhara T et al. Self-expandable metallic stents with an anti-reflux mechanism for malignant strictures of gastroesophageal junction. Scand. J. Gastroenterol.37(8), 990–991 (2002).
   Web of Science ®Google Scholar
• Power C, Byrne PJ, Lim K et al. Superiority of anti-reflux stent compared with conventional stents in the palliative management of patients with cancer of the lower esophagus and esophago-gastric junction: results of a randomized clinical trial. Dis. Esophagus20(6), 466–470 (2007).
   PubMedGoogle Scholar
• Shim CS, Jung IS, Cheon YK et al. Management of malignant stricture of the esophagogastric junction with a newly designed self-expanding metal stent with an antireflux mechanism. Endoscopy37(4), 335–339 (2005).
   PubMed Web of Science ®Google Scholar
• Laasch HU, Marriott A, Wilbraham L et al. Effectiveness of open versus antireflux stents for palliation of distal esophageal carcinoma and prevention of symptomatic gastroesophageal reflux. Radiology225(2), 359–365 (2002).
   PubMedGoogle Scholar
• Hirdes MM, Vlegaar FP, Laasch HU, Siersema PD. Technical feasibility and safety of a new, implantable reflux control system to prevent gastroesophageal reflux in patients with stents placed through the lower esophageal sphincter (with video) (In press).
   Google Scholar
• Hyngstrom JR, Posner MC. Neoadjuvant strategies for the treatment of locally advanced esophageal cancer. J. Surg. Oncol.101(4), 299–304 (2010).
   PubMedGoogle Scholar
• Belghiti J, Langonnet F, Bourstyn E et al. Surgical implications of malnutrition and immunodeficiency in patients with carcinoma of the oesophagus. Br. J. Surg.70(6), 339–341 (1983).
   PubMedGoogle Scholar
• Adler DG, Fang J, Wong R et al. Placement of Polyflex stents in patients with locally advanced esophageal cancer is safe and improves dysphagia during neoadjuvant therapy. Gastrointest. Endosc.70(4), 614–619 (2009).
   Google Scholar
• Martin R, Duvall R, Ellis S et al. The use of self-expanding silicone stents in esophageal cancer care: optimal pre-, peri-, and postoperative care. Surg. Endosc.23(3), 615–621 (2009).
   Google Scholar
• Bower M, Jones W, Vessels B et al. Nutritional support with endoluminal stenting during neoadjuvant therapy for esophageal malignancy. Ann. Surg. Oncol.16(11), 3161–3168 (2009).
   Google Scholar
• Brown RE, Abbas AE, Ellis S et al. A prospective Phase II evaluation of esophageal stenting for neoadjuvant therapy for esophageal cancer: optimal performance and surgical safety. J. Am. Coll. Surg.212(4), 582–588 (2011).
   Google Scholar
• Lopes TL, Eloubeidi MA. A pilot study of fully covered self-expandable metal stents prior to neoadjuvant therapy for locally advanced esophageal cancer. Dis. Esophagus23(4), 309–315 (2010).
   Google Scholar
• Siddiqui AA, Glynn C, Loren D et al. Self-expanding plastic esophageal stents versus jejunostomy tubes for the maintenance of nutrition during neoadjuvant chemoradiation therapy in patients with esophageal cancer: a retrospective study. Dis. Esophagus22(3), 216–222 (2009).
   Google Scholar
• Siddiqui AA, Loren D, Dudnick R et al. Expandable polyester silicon-covered stent for malignant esophageal strictures before neoadjuvant chemoradiation: a pilot study. Dig. Dis. Sci.52(3), 823–829 (2007).
   Google Scholar
• Chen YK, Schefter TE, Newman F. Esophageal cancer patients undergoing external beam radiation after placement of self-expandable metal stents: is there a risk of radiation dose enhancement? Gastrointest. Endosc.73(6), 1109–1114 (2011).
   Google Scholar
• Homs MY, Hansen BE, van Blankenstein M et al. Prior radiation and/or chemotherapy has no effect on the outcome of metal stent placement for oesophagogastric carcinoma. Eur. J. Gastroenterol. Hepatol.16(2), 163–170 (2004).
   PubMedGoogle Scholar
• Javed A, Pal S, Dash NR et al. Palliative stenting with or without radiotherapy for inoperable esophageal carcinoma: a randomized trial. J. Gastrointest. Cancer 2010 DOI: 10.1007/s12029-010-9206-4 (Epub ahead of print).
   Google Scholar
• Guo JH, Teng GJ, Zhu GY et al. Self-expandable esophageal stent loaded with 125I seeds: initial experience in patients with advanced esophageal cancer. Radiology247(2), 574–581 (2008).
   PubMed Web of Science ®Google Scholar
• Siersema PD. Treatment options for esophageal strictures. Nat. Clin. Pract. Gastroenterol. Hepatol.5(3), 142–152 (2008).
   PubMedGoogle Scholar
• Siersema PD, de Wijkerslooth LR. Dilation of refractory benign esophageal strictures. Gastrointest. Endosc.70(5), 1000–1012 (2009).
   PubMed Web of Science ®Google Scholar
• Kochman ML, McClave SA, Boyce HW. The refractory and the recurrent esophageal stricture: a definition. Gastrointest. Endosc.62(3), 474–475 (2005).
   PubMed Web of Science ®Google Scholar
• Hordijk ML, van Hooft JE, Hansen BE et al. A randomized comparison of electrocautery incision with Savary bougienage for relief of anastomotic gastroesophageal strictures. Gastrointest. Endosc.70(5), 849–855 (2009).
   PubMed Web of Science ®Google Scholar
• Martin RC, Woodall C, Duvall R et al. The use of self-expanding silicone stents in esophagectomy strictures: less cost and more efficiency. Ann. Thorac. Surg.86(2), 436–440 (2008).
   Google Scholar
• Ackroyd R, Watson DI, Devitt PG et al. Expandable metallic stents should not be used in the treatment of benign esophageal strictures. J. Gastroenterol. Hepatol.16(4), 484–487 (2001).
   PubMed Web of Science ®Google Scholar
• Wadhwa RP, Kozarek RA, France RE et al. Use of self-expandable metallic stents in benign GI diseases. Gastrointest. Endosc.58(2), 207–212 (2003).
   PubMed Web of Science ®Google Scholar
• Song HY, Jung HY, Park SI et al. Covered retrievable expandable nitinol stents in patients with benign esophageal strictures: initial experience. Radiology217(2), 551–557 (2000).
   PubMed Web of Science ®Google Scholar
• Hirdes MM, Vleggaar FP, Van der LK et al. Esophageal perforation due to removal of partially covered self-expanding metal stents placed for a benign perforation or leak. Endoscopy43(2), 156–159 (2011).
   PubMed Web of Science ®Google Scholar
• Evrard S, Le MO, Lazaraki G et al. Self-expanding plastic stents for benign esophageal lesions. Gastrointest. Endosc.60(6), 894–900 (2004).
   PubMed Web of Science ®Google Scholar
• Thomas T, Abrams KR, Subramanian V et al. Esophageal stents for benign refractory strictures: a meta-analysis. Endoscopy43(5), 386–393 (2011).
   PubMed Web of Science ®Google Scholar
• Kim JH, Song HY, Choi EK et al. Temporary metallic stent placement in the treatment of refractory benign esophageal strictures: results and factors associated with outcome in 55 patients. Eur. Radiol.19(2), 384–390 (2009).
   PubMed Web of Science ®Google Scholar
• Siersema PD, Hirdes MM. What is the optimal duration of stent placement for refractory, benign esophageal strictures? Nat. Clin. Pract. Gastroenterol. Hepatol.6(3), 146–147 (2009).
   Google Scholar
• Said A, Brust DJ, Gaumnitz EA et al. Predictors of early recurrence of benign esophageal strictures. Am. J. Gastroenterol.98(6), 1252–1256 (2003).
   Google Scholar
• van Heijl M, Gooszen JA, Fockens P et al. Risk factors for development of benign cervical strictures after esophagectomy. Ann. Surg.251(6), 1064–1069 (2010).
   PubMed Web of Science ®Google Scholar
• Marjanovic G, Schrag HJ, Fischer E et al. Endoscopic bougienage of benign anastomotic strictures in patients after esophageal resection: the effect of the extent of stricture on bougienage results. Dis. Esophagus21(6), 551–557 (2008).
   Google Scholar
• Chiu YC, Hsu CC, Chiu KW et al. Factors influencing clinical applications of endoscopic balloon dilation for benign esophageal strictures. Endoscopy36(7), 595–600 (2004).
   PubMed Web of Science ®Google Scholar
• van Heel NC, Haringsma J, Wijnhoven BP et al. Endoscopic removal of self-expandable metal stents from the esophagus (with video). Gastrointest. Endosc.74(1), 44–50 (2011).
   PubMedGoogle Scholar
• Seo YS, Park JJ, Kim BG et al. Segmental amputation of esophagus with bronchial-wall rupture during removal of a stent for benign esophageal stricture. Gastrointest. Endosc.64(1), 141–143 (2006).
   Google Scholar
• Siersema PD, Homs MY, Haringsma J et al. Use of large-diameter metallic stents to seal traumatic nonmalignant perforations of the esophagus. Gastrointest. Endosc.58(3), 356–361 (2003).
   PubMed Web of Science ®Google Scholar
• Eisendrath P, Cremer M, Himpens J et al. Endotherapy including temporary stenting of fistulas of the upper gastrointestinal tract after laparoscopic bariatric surgery. Endoscopy39(7), 625–630 (2007).
   PubMed Web of Science ®Google Scholar
• Bakken JC, Wong Kee Song LM, de Groen PC et al. Use of a fully covered self-expandable metal stent for the treatment of benign esophageal diseases. Gastrointest. Endosc.72(4), 712–720 (2010).
   PubMed Web of Science ®Google Scholar
• Triester SL, Fleischer DE, Sharma VK. Failure of self-expanding plastic stents in treatment of refractory benign esophageal strictures. Endoscopy38(5), 533–537 (2006).
   Google Scholar
• Jeon SR, Eun SH, Shim CS et al. Effect of drug-eluting metal stents in benign esophageal stricture: an in vivo animal study. Endoscopy41(5), 449–456 (2009).
   Google Scholar
• Lee SS, Shin JH, Han JM et al. Histologic influence of paclitaxel-eluting covered metallic stents in a canine biliary model. Gastrointest. Endosc.69(6), 1140–1147 (2009).
   PubMed Web of Science ®Google Scholar
• Dorta G, Binek J, Blum AL et al. Comparison between esophageal Wallstent and Ultraflex stents in the treatment of malignant stenoses of the esophagus and cardia. Endoscopy29(3), 149–154 (1997).
   Google Scholar
• Tomaselli F, Maier A, Sankin O et al. Ultraflex stent – benefits and risks in ultimate palliation of advanced, malignant stenosis in the esophagus. Hepatogastroenterology51(58), 1021–1026 (2004).
   PubMedGoogle Scholar
• Xinopoulos D, Dimitroulopoulos D, Moschandrea I et al. Natural course of inoperable esophageal cancer treated with metallic expandable stents: quality of life and cost–effectiveness analysis. J. Gastroenterol. Hepatol.19(12), 1397–1402 (2004).
   Google Scholar
• Saranovic D, Djuric-Stefanovic A, Ivanovic A et al. Fluoroscopically guided insertion of self-expandable metal esophageal stents for palliative treatment of patients with malignant stenosis of esophagus and cardia: comparison of uncovered and covered stent types. Dis. Esophagus18(4), 230–238 (2005).
   PubMedGoogle Scholar
• Verschuur EM, Kuipers EJ, Siersema PD. Esophageal stents for malignant strictures close to the upper esophageal sphincter. Gastrointest. Endosc.66(6), 1082–1090 (2007).
   Google Scholar
• van Boeckel PG, Siersema PD, Sturgess R et al. A new partially covered metal stent for palliation of malignant dysphagia: a prospective follow-up study. Gastrointest. Endosc.72(6), 1269–1273 (2010).
   Google Scholar
• Park JG, Jung GS, Oh KS et al. Double-layered PTFE-covered nitinol stents: experience in 32 patients with malignant esophageal strictures. Cardiovasc. Intervent. Radiol.33(4), 772–779 (2010).
   Google Scholar
• Radecke K, Gerken G, Treichel U. Impact of a self-expanding, plastic esophageal stent on various esophageal stenoses, fistulas, and leakages: a single-center experience in 39 patients. Gastrointest. Endosc.61(7), 812–818 (2005).
   PubMed Web of Science ®Google Scholar
• Ott C, Ratiu N, Endlicher E et al. Self-expanding Polyflex plastic stents in esophageal disease: various indications, complications, and outcomes. Surg. Endosc.21(6), 889–896 (2007).
   Google Scholar
• Pennathur A, Chang AC, McGrath KM et al. Polyflex expandable stents in the treatment of esophageal disease: initial experience. Ann. Thorac. Surg.85(6), 1968–1972 (2008).
   Google Scholar
• Xinopoulos D, Bassioukas SP, Dimitroulopoulos D et al. Self-expanding plastic stents for inoperable malignant strictures of the cervical esophagus. Dis. Esophagus22(4), 354–360 (2009).
   Google Scholar
• Karbowski M, Schembre D, Kozarek R et al. Polyflex self-expanding, removable plastic stents: assessment of treatment efficacy and safety in a variety of benign and malignant conditions of the esophagus. Surg. Endosc.22(5), 1326–1333 (2008).
   PubMed Web of Science ®Google Scholar
• Cwikiel W, Willen R, Stridbeck H et al. Self-expanding stent in the treatment of benign esophageal strictures: experimental study in pigs and presentation of clinical cases. Radiology187(3), 667–671 (1993).
   Google Scholar
• Song HY, Park SI, Do YS et al. Expandable metallic stent placement in patients with benign esophageal strictures: results of long-term follow-up. Radiology203(1), 131–136 (1997).
   Google Scholar
• Lee JG, Hsu R, Leung JW. Are self-expanding metal mesh stents useful in the treatment of benign esophageal stenoses and fistulas? An experience of four cases. Am. J. Gastroenterol.95(8), 1920–1925 (2000).
   PubMed Web of Science ®Google Scholar
• Fiorini A, Fleischer D, Valero J et al. Self-expandable metal coil stents in the treatment of benign esophageal strictures refractory to conventional therapy: a case series. Gastrointest. Endosc.52(2), 259–262 (2000).
   PubMed Web of Science ®Google Scholar
• De Palma GD, lovino P, Masone S et al. Self-expanding metal stents for endoscopic treatment of esophageal achalasia unresponsive to conventional treatments. Long-term results in eight patients. Endoscopy33(12), 1027–1030 (2001).
   PubMed Web of Science ®Google Scholar
• Mukherjee S, Kaplan DS, Parasher G et al. Expandable metal stents in achalasia – is there a role? Am J Gastroenterol95(9), 2185–2188 (2000).
   PubMed Web of Science ®Google Scholar
• Tan BS, Kennedy C, Morgan R et al. Using uncovered metallic endoprostheses to treat recurrent benign esophageal strictures. Am. J. Roentgenol.169(5), 1281–1284 (1997).
   PubMed Web of Science ®Google Scholar
• Song HY, Park SI, Jung HY et al. Benign and malignant esophageal strictures: treatment with a polyurethane-covered retrievable expandable metallic stent. Radiology203(3), 747–752 (1997).
   Google Scholar
• Cheng YS, Li MH, Chen WX et al. Follow-up evaluation for benign stricture of upper gastrointestinal tract with stent insertion. World J. Gastroenterol.9(11), 2609–2611 (2003).
   PubMed Web of Science ®Google Scholar
• Conio M, Blanchi S, Filiberti R et al. A modified self-expanding Niti-S stent for the management of benign hypopharyngeal strictures. Gastrointest. Endosc.65(4), 714–720 (2007).
   PubMed Web of Science ®Google Scholar
• Broto J, Asensio M, Vernet JM. Results of a new technique in the treatment of severe esophageal stenosis in children: Polyflex stents. J. Pediatr. Gastroenterol. Nutr.37(2), 203–206 (2003).
   PubMed Web of Science ®Google Scholar
• Barthel JS, Kelley ST, Klapman JB. Management of persistent gastroesophageal anastomotic strictures with removable self-expandable polyester silicon-covered (Polyflex) stents: an alternative to serial dilation. Gastrointest. Endosc.67(3), 546–552 (2008).
   Google Scholar
• Garcia-Cano J. Dilation of benign strictures in the esophagus and colon with the Polyflex stent: a case series study. Dig. Dis. Sci.53(2), 341–346 (2008).
   Google Scholar