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Comparison of the reverse bevel versus Franseen type endoscopic ultrasound needle
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作者 Chi Wing Chow Syeda Asma Haider +5 位作者 Krish Ragunath Guruprasad P Aithal Martin W James Jacobo Ortiz-Fernandez-Sordo Aloysious Dominic Aravinthan suresh vasan venkatachalapathy 《World Journal of Gastrointestinal Endoscopy》 CAS 2020年第9期266-275,共10页
BACKGROUND Reverse bevel(RB)needle is widely used for endoscopic ultrasound fine needle biopsy(EUS-FNB).A 3-plane symmetrical needle with Franseen geometry(FG)has recently become available.AIM To compare the clinical ... BACKGROUND Reverse bevel(RB)needle is widely used for endoscopic ultrasound fine needle biopsy(EUS-FNB).A 3-plane symmetrical needle with Franseen geometry(FG)has recently become available.AIM To compare the clinical efficacy of FG to that of RB needle.METHODS A retrospective cohort study of all adult patients who underwent EUS-FNB for solid and mixed lesions either with 22G RB needle or 22G FG needle between January 2016 and February 2019 was undertaken.All cytology slides were reviewed by an independent gastrointestinal cytopathologist blinded to the needle used and the initial cytology report.The primary and secondary outcomes were to assess the sample adequacy using Euro-cytology criteria and the number of cell clusters,respectively.RESULTS Two hundred and twenty six procedures were included in the study.RB needle was used in 128 procedures and FG needle in 98 procedures.The baseline characteristics of both groups were comparable.On multivariable analysis,FG needle(P=0.02)and location of the lesion(P<0.01)were independently associated with adequate tissue.Further,the use of FG needle(P=0.04)and the size of the lesion(P=0.02)were independently associated with acquisition of increased number of cell clusters.CONCLUSION FG needle is superior to RB needle in acquiring adequate tissue and attaining higher number of cell clusters for solid and mixed lesions. 展开更多
关键词 Endoscopic ultrasound Fine needle aspiration Fine needle biopsy Reverse bevel Franseen geometry Tissue acquisition
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