ABSTRACT
Foreign body (FB) aspiration requiring prompt intervention to prevent severe complications. The endoscopic injection needle, commonly employed for intramucosal injections in the gastrointestinal tract and respiratory tract, while with no previous reports of used for FB extraction. Here we report a case of a pea impacted in the laryngeal ventricle of an adult patient, which became lodged in her right laryngeal ventricle. Conventional methods, such as flexible forceps and baskets, were deemed unsuitable for retrieving this fragile and mushy FB. Therefore, we introduce a novel technique using a modified endoscopic injection needle, which proved successful in removing the foreign body. Laryngoscope, 134:2338-2340, 2024.
Subject(s)
Foreign Bodies , Larynx , Humans , Adult , Female , Retrospective Studies , Endoscopy, Gastrointestinal/methods , Gastrointestinal Tract , Foreign Bodies/diagnostic imaging , Foreign Bodies/surgery , Respiratory AspirationABSTRACT
From the point of the technical evaluation of the registration of medical devices, the technical evaluation focus of the disposable endoscopic injection needle registration are briefly described in the chapters of the application overview documents, risk management data, product technical requirements, research data, toxic substance residues, biocompatibility evaluation, clinical evaluation data, et al. The common terms of technical requirements are specified, risk management and research materials list the project requirements for product characteristics. So as to accurately judge the product quality, improve the review efficiency, promote the development of the industry.
Subject(s)
Endoscopy , Needles , Injections , Risk Management , IndustryABSTRACT
From the point of the technical evaluation of the registration of medical devices, the technical evaluation focus of the disposable endoscopic injection needle registration are briefly described in the chapters of the application overview documents, risk management data, product technical requirements, research data, toxic substance residues, biocompatibility evaluation, clinical evaluation data, et al. The common terms of technical requirements are specified, risk management and research materials list the project requirements for product characteristics. So as to accurately judge the product quality, improve the review efficiency, promote the development of the industry.
Subject(s)
Needles , Endoscopy , Injections , Risk Management , IndustryABSTRACT
Purpose: Benign strictures of the esophagus are commonly encountered in clinical practice and are difficult to manage conservatively. This study aimed to establish a novel animal model of benign esophageal stricture by using corrosive-induced injury in rabbits with an injection of sodium hydroxide (NaOH) via a self-made endoscopic injection needle. Materials and Methods: Corrosive injury of the esophagus was induced in 10 rabbits by administration of 1 mL of 1.5% NaOH using a laryngoscope with a self-made endoscopic injection needle. The self-made injection needle was fabricated by modification of the core of an endoscopic injection needle. The laryngoscope examination was performed at 2 weeks and 4 weeks after induction of corrosive injury; esophagography was also performed at 4 weeks to assess esophageal stricture. All animals were euthanized at the end of the fourth week; the esophagus was removed, and stained sections were examined microscopically. Results: Laryngoscope examination at 2 weeks showed ulceration. At the end of fourth week, laryngoscopy, radiological, and gross examinations showed successful induction of esophageal stricture in all animals, without any complication. The mean stricture index at the end of fourth week was 49.54±3.61%; the mean length of stricture was 18 .0±2.5mm. Microscopic examination revealed focal ulceration and submucosal thickening secondary to fibrosis. Conclusion: Rabbit esophageal stricture induced using laryngoscopy with endoscopic injection of a small amount of low-concentration sodium hydroxide is a technically simple, safe, and reproducible method for creation of an animal model of esophageal stricture. This model can be useful for developing new treatment methods for esophageal stricture.
