Use of esophagectomy to treat recurrent hyperplastic tissue obstruction caused by multiple metallic stent insertion for corrosive stricture

Fluoroscopic removal of fractured, retained, embedded Z self-expanding metal stent using a guidewire lasso technique: A case report

BACKGROUND

There are few reports of a fractured esophageal self-expanding metallic stent (SEMS) and the lasso retrieval technique, forming a guidewire loop by directing the guidewire back up the external stent for retrieval.

CASE SUMMARY

A 74-year-old man complained of dysphagia approximately 6 mo after radical resection of esophageal cancer. Benign anastomotic stenosis was diagnosed, and a 20 mm in diameter and 60 mm in length esophageal covered SEMS was inserted after repeated balloon dilatation. About 13.5 mo after stenting, dysphagia recurred and esophagography showed severe stenosis above the proximal stent and stent removal was performed. One-third of the stent was removed and the fractured stent remained in the proximal esophagus. A suction tube was introduced through the guidewire and then the guidewire was grabbed, acting like a “lasso” on tightening. The remaining fractured stent was successfully removed by slowly pulling back the guidewire, with no fragments of stent wires retained.

CONCLUSION

The guidewire lasso technique is a simple, effective method of removing esophageal SEMS in rare cases of stent fracture.

Multimodal endoscopic treatment for delayed severe esophageal stricture caused by incomplete stent removal

The usefulness of a covered self-expandable metallic stent for benign esophageal stricture and perforation was well established. In case of benign disease, early stent removal was recommended within 6-8 weeks after placement. A case with severe esophageal stricture caused by incomplete stent removal 7 years after stent placement for spontaneous esophageal rupture was reported. Residual stent fragments could be removed by step-by-step multimodal endoscopic treatment, producing satisfactory luminal diameter of the esophagus. In particular, stent trimming with argon plasma coagulation was safe and effective strategy. The endoscopic stent removal is minimally invasive and should be attempted before surgical intervention; however, it is most important to ensure early stent removal before tissue ingrowth or overgrowth can develop.

Endoscopic removal of self-expandable metal stents from the esophagus (with video)

BACKGROUND

Self-expandable metals stents (SEMSs) have increasingly been used as a temporary device to bridge chemoradiotherapy in patients with malignant esophageal disease or in patients with benign esophageal defects or stenosis.

OBJECTIVE

To evaluate the outcome of removal of SEMSs in a large cohort of patients with benign and malignant esophageal disease.

DESIGN

Observational study with standardized treatment and follow-up.

SETTING

Single university center.

PATIENTS

Between 2001 and 2010, 95 consecutive patients referred for endoscopic SEMS extraction were included.

INTERVENTIONS

Endoscopic stent removal.

MAIN OUTCOME MEASUREMENTS

Technical and functional outcome and complications.

RESULTS

A total of 124 stent extractions were undertaken in 95 patients; both partially covered (68%) and fully covered (32%) SEMSs were removed. Three patients had 2 overlapping SEMSs in place. Successful primary removal was achieved in 89%; the secondary removal rate was 96%. Uncomplicated primary removal rate was significantly higher for fully covered versus partially covered stents (P = .035) and for single versus overlapping stents (P = .033). Patients with a complicated stent removal had the stent in place significantly longer compared with patients with an uncomplicated primary stent removal (126 days vs 28 days; P = .01). Surgical removal was required in 3 patients (2.4%). Six moderate and severe complications (5%) related to the endoscopic extraction occurred.

LIMITATIONS

Retrospective, nonrandomized study design.

CONCLUSIONS

Primary endoscopic removal of an SEMS is feasible in the majority of patients with benign and malignant esophageal disease. A longer time that a stent is in place and the use of partially covered SEMSs both impede removal. Moreover, overlapping SEMSs should be avoided for temporary use because stent disintegration and subsequent complications may occur.

Short-term esophageal stenting in the management of benign perforations

OBJECTIVES

The standard approach to benign esophageal perforations consists of conservative treatment or surgery. In this study, we investigated the efficacy of short-term stent placement for nonmalignant esophageal perforations.

METHODS

This is a prospective single-center study of patients with benign esophageal perforations in whom a removable self-expandable stent was placed. Data were collected from a prospective database, endoscopy records, and operation reports. To obtain follow-up data, we contacted the patients, their relatives, or their general practitioner.

RESULTS

A total of 33 patients underwent stent insertion owing to an iatrogenic perforation (n=19), Boerhaave's syndrome (n=10), or other causes (n=4); this resulted in an immediate and complete sealing of the lesion in 32 patients (97%). Stents migrated in 11 patients (33%). Four patients required an esophageal resection for failed stent therapy (n=3) and failed stent removal (n=1). The 90-day mortality rate was 15%. A total of 33 endoscopic stent extractions were attempted. Overall, 23 stents were extracted within 6 weeks (group I) and 10 stents between 6 and 84 weeks (group II). Extractions were uncomplicated in all patients in group I (100%) vs. in 5 patients in group II (50%) (P=0.001). Six extraction-related complications occurred in group II, including two self-limiting bleedings, three stent fractures, and one impacted stent.

CONCLUSIONS

In patients with a benign esophageal perforation, temporary stent therapy is effective and provides a good alternative to surgery. Complications due to stent removal can be prevented by removal of the prosthesis within 6 weeks after insertion, without compromising the efficacy of treatment.

Treatment of large, oesophageal perforations and mediastinitis with a covered, removable metallic endoprosthesis and mediastinal drainage

A bevont fémstentek benignus nyelőcső-stenosisban és -perforatioban való alkalmazása, a stent okozta szöveti reakció és a stent eltávolítás nehézségei miatt, kezdeti stádiumban van. A szerzők nyelőcső-perforatioban egy újabb, bevont fémstent terápiás hatását és eltávolítására kidolgozott módszerük hatékonyságát vizsgálták 3 beteg kapcsán. Három beteg közül kettőnél corrosiv nyelőcsőstenosis tágításakor perforatio lépett fel. Emiatt az egyiknél mediastinalis drenázs és jejunostomia, másiknál primér sutura és drenázs történt. Ezt követően mindkettőben septicus állapot, mediastinitis alakult ki. Ennek hátterében egyiknél perforatio mellett mediastinalis drén okozta nyelőcsőfistula, a másiknál nyelőcsővarrat-elégtelenség állt. A nyelőcső falának defektusát 8, illetve 10 nappal a perforatio, műtét után bevont fémstenttel hidalták át. A harmadik beteg inoperabilis nyelőcsőtumora okozta stenosisának tágítása, stentelési kísérlete során nyelőcsőruptura lépett fel, melyet két órán belül bevont fémstenttel zárta. Parenteralis táplálást, széles spectrumú antibioticus kezelést alkalmaztak. Három nap múlva ellenőrizve mindhárom stent tölcsére tökéletesen zárt. Nasogastricus szonda-, majd per os táplálásra tértek át. Átmeneti mediastinalis drenázs után a stenteket 35, illetve 74 nappal a stentimplantatio után endoscoposan távolították el. Ez idő alatt a nyelőcsőfal-defectusok, a perforatios nyílások záródtak. A stent felső szélénél jelentkező stenosist mindkét betegnél tágították. A 3. betegnél a tumoros nyelőcsőruptura korai, végleges stentelése után szövődmény nem lépett fel. Itt drenázsra nem volt szükség. Nagy nyelőcső-perforatio – kísérő septicus állapot, mediastinitis esetén is – sikeresen gyógyítható bevont, eltávolítható fémstenttel és megfelelő mediastinalis drenázzsal.

Temporary partially-covered metal stent insertion in benign esophageal stricture

AIM: To study the therapeutic efficacy of temporary partially-covered metal stent insertion on benign esophageal stricture.

METHODS: Temporary partially-covered metal stent was inserted in 83 patients with benign esophageal stricture. All the patients had various dysphagia scores.

RESULTS: Insertion of 85 temporary partially-covered metal stents was performed successfully in 83 patients with benign esophageal stricture and dysphagia was effectively remitted in all the 83 cases. The dysphagia score was 3.20 ± 0.63 (mean ± SD) and 0.68 ± 0.31 before and after stent insertion, and 0.86 ± 0.48 after stent removal. The mean diameter of the strictured esophageal lumen was 3.37 ± 1.23 mm and 25.77 ± 3.89 mm before and after stent insertion, and 16.15 ± 2.96 mm after stent removal. Follow-up time was from 1 week to 96 months (mean 54.26 ± 12.75 months). The complications were chest pain (n = 37) after stent insertion, and bleeding (n = 12) and reflux (n = 13) after stent removal.

CONCLUSION: Temporary partially-covered metal stent insertion is one of the best methods for treatment of benign esophageal stricture.

Use of self-expandable metallic stents in benign GI diseases

BACKGROUND

The self-expandable metallic stent is of proven benefit in patients with malignant disease; however, its use in patients with benign disease is not well established. There are few data available regarding long-term complications and outcomes with use of self-expandable metallic stents in benign disease and virtually none regarding attempted removal once the acute problem is resolved.

METHODS

Thirteen patients who had a self-expandable metallic stent placed for benign GI disorders were included in a retrospective analysis. Data collected included patient demographics, indication for procedure, type of stent used, complications, and patient outcomes.

RESULTS

Thirteen patients (7 women, 6 men; mean age 67 years, range 34-84 years) had one or more self-expandable metallic stents placed for benign disease and were followed for a mean of 3.4 years (3 weeks to 10 years). Of the 13 patients, 8 had esophageal stents, 4 biliary stents, and 1 had dual stents placed in the pancreaticobiliary tree. Complications developed in 8 (62%) patients; 4 (31%) ultimately died, either from the primary disease process (3) or from stent-related complications (1).

CONCLUSIONS

Self-expandable metallic stent placement is effective treatment for benign esophageal leaks, providing the stent can be removed. It also may be used in either the esophagus or biliary tree in patients who are poor candidates for surgery and short expected survival. However, a self-expandable metallic stent should not be placed in a patient with a benign GI disorder who has a significant life expectancy and is a good candidate for surgery.

Stenting in esophageal strictures

The interventional management of esophageal strictures remains, to date, an important clinical challenge. Stenting is probably the best palliation modality in patients with incurable esophagogastric carcinoma. Conversely, the use of esophageal stents is still relatively uncommon for the treatment of refractory benign strictures. In the last few years, several new stents have become available as a result of significant advances that have been made in terms of design and materials. This review focuses on the endoscopic use of esophageal stents in malignant and benign esophageal strictures, revisiting the different types of expandable stents presently available, the techniques, the results, and the complications of stent insertion and giving some practical advices. Future developments in the field of esophageal stenting are also discussed.

[Endoscopic dilatation of caustic esophageal strictures]

OBJECTIVE

To evaluate the results of endoscopic dilatation in caustic esophageal strictures and to analyze the factors associated with a favorable response.

PATIENTS AND METHOD

We performed a retrospective study of 33 patients who underwent dilatation with Savary bougie between 1989 and 2001. Response to initial dilatation and outcome during follow-up were analyzed.

RESULTS

The mean age was 50 years (8-83) and 58% were women. Intake was accidental in 29 (88%). In all patients, the caustic substance ingested was alkali. Dilatation was started in the acute phase in 12 patients (36%) and 13 presented inflammatory phenomena adjacent to the stenosis. During initial dilatation, 2 1.6 sessions (2-18) were performed and a favorable response was obtained in 18 patients (54%). At the end of follow-up, 68% of the patients presented satisfactory health status. The comparative study revealed that statistically significant variables for a favorable response to treatment were: accidental alkali intake, instauration of treatment in the chronic phase, absence of inflammatory phenomena, and a small number of initial dilatation sessions.

CONCLUSIONS

In our series, more than half the patients with esophageal stenosis due to intake of corrosive alkalis showed a favorable initial response. In these patients with acute-phase stenosis who required a greater number of initial dilatation sessions, endoscopic therapy was less effective.