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KMID : 1188320160100010051
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Gut and Liver
2016 Volume.10 No. 1 p.51 ~ p.57
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Assessment of Factors Affecting the Usefulness and Diagnostic Yield of Core Biopsy Needles with a Side Hole in Endoscopic Ultrasound-Guided Fine-Needle Aspiration
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Tadahisa Inoue
Fumihiro Okumura
Takashi Mizushima
Hirotada Nishie
Hiroyasu Iwasaki
Kaiki Anbe
Takanori Ozeki
Kenta Kachi
Shigeki Fukusada
Yuta Suzuki
Hitoshi Sano
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Abstract
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Background/Aims:A barbed puncture needle with a side hole was recently developed to improve sample quality and quantity in endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA). In this study, we retrospectively assessed the usefulness of this puncture needle.
Methods:Factors affecting diagnostic yield, safety, and diagnostic accuracy were investigated in 76 patients who consecutively underwent EUS-FNA for neoplastic lesions at our hospital between January and December 2013.
Results:The procedure was successful in all cases; the rates of sample collection and determination of the correct diagnosis were 92.1% and 89.5%, respectively. The mean number of needle passes required for diagnosis was 1.1. Complications included mild intraluminal bleeding in two patients (2.6%). Multivariate analysis revealed that lesion size (≤20 mm) was significantly associated with a decreased chance of determining the correct diagnosis.
Conclusions:Core biopsy needles with a side hole are safe and provide a satisfactory diagnostic yield. However, the side hole may potentially reduce the rate of making the correct diagnosis in small lesions.
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KEYWORD
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Endoscopic ultrasound-guided fine needle aspiration, Biopsy needles, Side hole, Size of lesions
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