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Clinical Trial Summary

There are many factors that can affect the diagnostic yield of EUS-FNA, including lesion factors, the endoscoist experience, the needle size, the number of needle passes, and the suction technique. since diagnostic efficacy of different suction techniques for EUS-FNB is still uncertain, thus we decided to compare the diagnostic efficacy of three common methods: the 10 ml standard negative pressure, slow pull and wet suction.


Clinical Trial Description

the standard suction: after the needle is inserted in the mass, removing the stylet before performing EUS-FNA. Then attach a 10mL syringe to the end of needle. 20 times of for-backward Suction was applied after the lesion was punctured.

slow-pull : after the needle is inserted in the mass, slowly pull the stylet out while performing EUS-FNA with 20 times for-backward.

wet suction: after removing the stylet, the needle was flushed with 5mL of saline solution to replace the column of air with saline. A 10mL syringe was attached to the end of the needle. 20 times of for-backward Suction was applied after the lesion was punctured. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04100941
Study type Interventional
Source Changhai Hospital
Contact Wei Zhou, M.D.
Phone +8618021009362
Email zhou_wei0012@163.com
Status Recruiting
Phase N/A
Start date June 10, 2019
Completion date November 30, 2020

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Terminated NCT03485924 - EUS FNB Versus FNA With On-Site Cytopathology in Solid Pancreatic Masses N/A