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Stent-in-stent, a safe and effective technique to remove fully embedded esophageal metal stents: case series and literature review.

ABSTRACT: BACKGROUND: Endoscopic stenting is a widely used method for managing esophageal anastomotic leaks and perforations. Self-expanding metal stents (SEMSs) have proved effective in sealing these defects, with a lower rate of displacement than that of self-expanding plastic stents (SEPSs) as a result of tissue proliferation and granulation tissue ingrowth at the uncovered portion of the stent, which anchor the prosthesis to the esophageal wall. Removal of a fully embedded stent is challenging because of the risk of bleeding and tears. MATERIALS AND METHODS: Temporary placement of a new stent within the first stent (stent-in-stent technique) may facilitate the mobilization and safe removal of both stents by inducing pressure ischemia of the granulation tissue. We report our own experience with the stent-in-stent technique in five consecutive patients in whom a partially covered Ultraflex stent had previously been implanted and compare our results with those in the current literature. RESULTS: The first SEMSs remained in place for a median of 40 days (range 18 - 68) without displacement. Placement of the new stent was technically successful in all patients. All stents were left in place for a median of 9 days. The overall stent-in-stent success rate was 100 % for the removal of embedded stents. No serious adverse events related to the procedure occurred. CONCLUSION: The procedure was safe, well tolerated, and effective. The use of a partially covered Ultraflex stent of the same size as the old stent for a limited time (≤ 6 days) was consistently successful.

SUBMITTER: Aiolfi A

PROVIDER: S-EPMC4554508 | biostudies-other | 2015 Aug

REPOSITORIES: biostudies-other

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Project description:BackgroundTemporary cardiac pacemaker implantation (PM) via the femoral and subclavian veins is widely used in clinics to treat patients with severe bradycardia or tachycardia, but it is technically challenging and potentially associated with various complications.HypothesisThis study investigated the feasibility and safety of a novel method of PM implantation via the median cubital vein.MethodsA total of 279 patients of the First Affiliated Hospital of Xiamen University between March 2020 and December 2021 who required no-emergency PM implantation were enrolled. The patients were divided into three groups based on the temporary PM implantation routes: F-control (n = 107), via the femoral vein; S-control (n = 67), via the subclavian vein, and N-group (n = 105), via the median cubital vein. The sheath placement time (SPT), electrode placement time (EPT), electrode arrival rate (EAR), rate of sensing and pacing (RSP), radiation quantity (RD), electrode dislocation rate (EDR) and average electrode retention time (AERT) were recorded and evaluated. In addition, the Hamilton Anxiety Scale (HAMA) and Self-Rating Depression Scale (SDS) were used to evaluate the comfort levels of patients in the three groups.ResultsThere were no significant differences between the groups with regard to age, EAR, RSP, EPT, RD, and AERT (p > 0.05). However, the N-group had significantly lower SPT than the F-control and S-control groups (67.0 ± 22.0 s vs. 321.7 ± 122.2 s and 307.3 ± 128.5 s, p = 0.000). Additionally, the F-control had significantly higher EDR than the S-control group and the N-group (11 (10.3%) vs. 2 (3.0%) and 3 (2.9%), p = 0.036). Besides, comparison of the HAMA and SDS scores before and after PM implantation showed significant differences in the S-control group (p = 0.010) and the N-group (p = 0.000).ConclusionsTemporary PM implantation via the median cubital vein is safe, effective, and less time-consuming.

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Stent-in-stent, a safe and effective technique to remove fully embedded esophageal metal stents: case series and literature review.

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