Comparing Needle Types and Techniques for Diagnosing Pancreatic Lesions
Author Information
Author(s): Shang Rumin, Han Xiangming, He Fangwei, Huang Lihua, Zeng Cui, Chen Kun, Lv Fei, Ding Xiangwu
Primary Institution: Wuhan Fourth Hospital, Wuhan, China
Hypothesis
This study aims to compare the diagnostic efficacy of 19G fine-needle aspiration needles versus 22G fine-needle biopsy needles and the differences in specimen quality between heparinized wet-suction and standard suction techniques.
Conclusion
The 19G FNA needle is recommended over the 22G FNB needle for better diagnostic accuracy, and the HWS technique improves specimen quality.
Supporting Evidence
- The 19G group had higher histological diagnosis rates compared to the 22G group.
- The total procedure time was shorter in the 19G group than in the 22G group.
- The HWS group showed superiority over the SS group in terms of the total length of tissue cores.
- The HWS technique enhanced tissue integrity and reduced blood cell contamination.
Takeaway
Using a bigger needle helps doctors get better samples from the pancreas, and a special suction method makes the samples even better.
Methodology
A retrospective cohort study comparing the diagnostic yield of 19G FNA and 22G FNB needles, and the specimen quality between standard suction and heparinized wet-suction techniques.
Limitations
The study did not compare newer needle types and had a limited sample size for suction method analysis.
Participant Demographics
Patients with solid pancreatic lesions who underwent EUS-TA at Wuhan Fourth Hospital.
Statistical Information
P-Value
p=0.005 for first pass diagnosis rate between 19G and 22G needles.
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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