A pilot study of EUS-guided through-the-needle forceps biopsy (with video)

Gastrointestinal Endoscopy
Yousuke NakaiKazuhiko Koike

Abstract

In EUS-guided FNA (EUS-FNA), small-caliber needles are preferable for optimal cytologic yield, whereas large ones are preferable when histologic specimens are needed. Because of the rigidity and friction induced by its large caliber, however, technical limitation does exist in a 19-gauge FNA needle. Recent development of miniature biopsy forceps enables EUS-guided through-the-needle forceps biopsy (EUS-TTNFB). The aim of this study is to evaluate safety and efficacy of EUS-TTNFB. Eighteen sessions of EUS-TTNFB in 17 patients with solid lesions were performed by using a 0.75-mm biopsy forceps through a 19-gauge FNA needle. Technical feasibility, safety, and diagnostic yield of EUS-TTNFB were retrospectively studied. A total of 49 passes, a median of 3 passes per session, were performed, and the needle puncture, advancement and removal of the biopsy forceps, and subsequent EUS-FNA were technically successful in all patients. No adverse events were observed other than one case with hyperamylasemia without pancreatitis. Macroscopic histologic core by EUS-TTNFB was obtained at a rate of 71% per pass. The tissue acquisition rate by EUS-TTNFB alone was 67% per pass and 100% per session. When EUS-TTNFB and subsequent EUS-FNA were combi...Continue Reading

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Citations

Feb 22, 2018·Cancers·Pujan Kandel, Michael B Wallace
Apr 17, 2018·Cancer Cytopathology·M Lisa ZhangMartha B Pitman
Feb 28, 2019·Journal of Gastroenterology·Pujan Kandel, Michael B Wallace
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Aug 13, 2021·Digestive Diseases and Sciences·Andrew Canakis, Linda S Lee

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