Objective: To determine the efficacy of office-based intralesional steroid injections (ILSI) as a management therapy for adult subglottic stenosis (SGS). Data Sources: A systematic review was completed using PubMed and Science Direct for office-based management of SGS due to various etiologies. Review Methods: The primary end point measured was a change in surgery free interval (SFI) between endoscopic procedures due to office-based serial ILSI. The secondary end point was to determine what percentage of patients did not require further operative intervention for SGS maintenance therapy after changing management to office-based serial ILSI. Results: We identified 187 abstracts, 4 of which were included in the analysis. The total number of participants was 55. The mean age was 50.4, and 78.1% were women. The etiologies were as follows: idiopathic (58.2%), postintubation/tracheotomy (29.1%), and autoimmune (12.7%). The SFI was reported in 3 of the 4 studies. The reported mean pre-ILSI SFI was 362.9 days and the post-ILSI SFI was 582.2 days. The secondary outcome was reported in 3 of the 4 studies. Forty-one of the 55 patients (74.5%) did not require further operative intervention during the duration of the study. Conclusion: This review explored office-based ILSI as a potential treatment option for patients with SGS. The limited data presented found ILSI significantly lengthened SFI, potentially reducing surgical burden. In addition, ILSI was found to be safe with few reported side effects.
Objective: Recent material science advancements are driving tracheal stent innovation. We sought to assess the state of the science regarding materials and preclinical/clinical outcomes for tracheal stents in adults with benign tracheal disease.Methods: A comprehensive literature search in April 2021 identified 556 articles related to tracheal stents. One-hundred and twenty-eight full-text articles were reviewed and 58 were included in the final analysis. Datapoints examined were stent materials, clinical applications and outcomes, and preclinical findings, including emerging technologies.Results: In the 58 included studies, stent materials were metals (n = 28), polymers (n = 19), coated stents (n = 19), and drug-eluting (n = 5). Metals included nitinol, steel, magnesium alloys, and elgiloy. Studies utilized 10 different polymers, the most popular included polydioxanone, poly-L-lactic acid, poly(D,L-lactide-co-glycolide), and polycaprolactone. Coated stents employed a metal or polymer framework and were coated with polyurethane, silicone, polytetrafluoroethylene, or polyester, with some polymer coatings designed specifically for drug elution. Drug-eluting stents utilized mitomycin C, arsenic trioxide, paclitaxel, rapamycin, and doxycycline. Of the 58 studies, 18 were human and 40 were animal studies (leporine = 21, canine = 9, swine = 4, rat = 3, ovine/feline/murine = 1). Noted complications included granulation tissue and/or stenosis, stent migration, death, infection, and fragmentation.Conclusion: An increasing diversity of materials and coatings are employed for tracheal stents, growing more pronounced over the past decade. Though most studies are still preclinical, awareness of tracheal stent developments is important in contextualizing novel stent concepts and clinical trials.
Objectives/Hypothesis Vocal fold (VF) lipoaugmentation can be employed to treat glottal insufficiency although variable data exist on its length of effectiveness. We aimed to review published long‐term outcomes following lipoaugmentation across the literature and compile outcome data. Study Design Systematic review. Methods A systematic search in September 2020 of PubMed, MEDLINE, Cochrane Library, and Web of Science used the Preferred Reporting Items for Systematic Review and Meta‐Analyses guidelines to identify 128 relevant articles related to VF lipoaugmentation effectiveness duration. Primary search terms included the following: vocal cord, fat, lipo, and atrophy. Forty‐eight full‐text articles were reviewed and 31 were included in the final analysis. Primary endpoints included the following: duration of effectiveness per patient‐reported outcome measures, objective findings, and additional procedures performed. In addition, fat harvest location and processing techniques were recorded. Findings Thirty‐one studies totaling 764 patients were included in the review. Indications for augmentation were VF paralysis (N = 690) and atrophy (N = 74). Fat was harvested from the abdominal region in 21 studies (529 patients), the thigh/abdomen in 5 studies (91 patients), and buccal/submental region in 2 studies (33 patients). Processing techniques and injectable volume varied. Across included studies, only 11 of 764 patients (1.4%) reported no improvement in voice and/or swallowing. Within the first year, 71 of 608 patients (11.7%) reported a regression toward baseline. Beyond 1 year and up to 8 years, 27 of 214 patients (12.6%) reported regression from initial improvement. Thirty‐three patients underwent additional procedures. Conclusion Although improvements in voice and swallowing after lipoaugmentation taper over time, most patients experienced long‐term benefit. Laryngoscope, 132:1042–1053, 2022
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