Optimal Number of To-and-fro Motion in EUS-guided Fine Needle Aspiration for Pancreatic Masses

Optimal Number of To-and-fro Motion in EUS-guided Fine Needle Aspiration for Pancreatic Masses in Terms of Suction or Without Suction: Prospective Randomized Single Blinded Trial

EUS-FNA is the standard of care for diagnosing pancreatic masses. According to the operator's preference, EUS-FNA with suction or without suction technique has been used. To date, little is known about optimal number of to-and-fro motion during each needle pass. As usual 10-15 to-and-fro motions was used for EUS-FNA with suction technique. Theoretically, more number of to-and-fro motions may be required in EUS-FNA without suction. In this circumstance, the contamination of blood in specimen and possible adverse event may occur. To determine optimal number of to-and-fro motion in EUS-guided FNA for pancreatic masses in terms of with suction or without suction, this prospective single-blinded randomized trial was conducted.

Study Overview

• Status: Completed
• Conditions: Pancreatic Masses
• Intervention / Treatment: Device: EUS-FNA with suction; Procedure: EUS-FNA; Device: EUS-FNA without suction

Detailed Description

For this prospective single-blinded randomized trial, two 10cc syringes was prepared. Two syringe was provided as same performance. However, one syringe is falsely made as suction syringe (fake one). During EUS-FNA, two syringe is randomly assigned and loaded by a nurse. Thus, operator was blinded which syringe is with suction or without suction.

First hypothesis: There is difference in the diagnostic accuracy of pancreatic masses according to EUS-FNA with suction or without suction/ different number of to-and-fro motion.

Second hypothesis: There is difference in the amount of blood in samples obtained by EUS-FNA with suction or without suction/ different number of to-and-fro motion.

• Study Type: Interventional
• Enrollment (Actual): 193
• Phase: Phase 3

Contacts and Locations

Study Locations

• Korea, Republic of
  • Seoul, Korea, Republic of, 138-736
    • Asan Medical Center

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 85 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Age > 19 years Solid pancreatic mass lesions

Exclusion Criteria:

• Age < 19 years Coagulopathy Unable to consent

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Diagnostic
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Double

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Active Comparator: EUS-FNA with suction; EUS-FNA with suction/10, 15, 20 to-and-fro motion vs. EUS-FNA with suction/10, 15, 20 to-and-fro motion Visual assessment as stoping rule: 20 to-and-fro motion at different site will be performed when EUS-FNA sampling with 10, 15, 20 to-and-fro motion is unsatisfactory.	Device: EUS-FNA with suction; For this prospective single-blinded randomized trial, two 10cc syringes was prepared. Two syringe was provided as same performance. However, one syringe is falsely made as suction syringe (fake one). During EUS-FNA, two syringe is randomly assigned and loaded by a nurse. Thus, operator was blinded which syringe is with suction or without suction.; Other Names: FNA with suction
Active Comparator: EUS-FNA without suction; EUS-FNA with suction/10, 15, 20 to-and-fro motion vs. EUS-FNA without suction/10, 15, 20 to-and-fro motion Visual assessment as stoping rule: 20 to-and-fro motion at different site will be performed when EUS-FNA sampling with 10, 15, 20 to-and-fro motion is unsatisfactory.	Procedure: EUS-FNA; EUS-FNA with suction/10, 15, 20 to-and-fro motion vs. EUS-FNA without suction/10, 15, 20 to-and-fro motion Visual assessment as stoping rule: 20 to-and-fro motion at different site will be performed when EUS-FNA sampling with 10, 15, 20 to-and-fro motion is unsatisfactory.; Other Names: FNA with or without suction; Device: EUS-FNA without suction; For this prospective single-blinded randomized trial, two 10cc syringes was prepared. Two syringe was provided as same performance. However, one syringe is falsely made as suction syringe (fake one). During EUS-FNA, two syringe is randomly assigned and loaded by a nurse. Thus, operator was blinded which syringe is with suction or without suction.; Other Names: FNA without suction

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Diagnostic accuracy	The diagnostic accuracy of pancreatic masses at each sample according to EUS-FNA with suction or without suction/ different number of to-and-fro motion will be measured. Diagnostic accuracy of EUS-FNA with suction and 10, 15, and 20 to-and-fro motion vs.Diagnostic accuracy of EUS-FNA without suction and 10, 15, and 20 to-and-fro motion.	1 year

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Blood contamination in each sample	The amount of blood contamination at each sample according to EUS-FNA with suction or without suction/ different number of to-and-fro motion will be measured. The amount of blood contamination of EUS-FNA with suction and 10, 15, and 20 to-and-fro motion vs. The amount of blood contamination of EUS-FNA without suction and 10, 15, and 20 to-and-fro motion.	1 year

Collaborators and Investigators

• Sponsor: Asan Medical Center
• Investigators: Principal Investigator: Do Hyun Park, MD, PhD, Asan Medical Center

Study record dates

Study Major Dates

• Study Start: April 1, 2012
• Primary Completion (Actual): October 1, 2012
• Study Completion (Actual): March 1, 2013

Study Registration Dates

• First Submitted: April 7, 2012
• First Submitted That Met QC Criteria: April 11, 2012
• First Posted (Estimate): April 12, 2012

Study Record Updates

• Last Update Posted (Estimate): May 29, 2014
• Last Update Submitted That Met QC Criteria: May 28, 2014
• Last Verified: April 1, 2012

More Information

Terms related to this study

• Keywords: EUS, EUS-FNA, Pancreatic masses
• Other Study ID Numbers: 2012-0018