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19 November 2018 : Meta-Analysis  

Systematic Review and Meta-Analysis of Diagnostic Accuracy of Endoscopic Ultrasound (EUS)-Guided Fine-Needle Aspiration (FNA) Using 22-gauge and 25-gauge Needles for Pancreatic Masses

Guo Tian12ABCDEFG, Haiwei Bao3BC, Ju Li3CD, Tian’an Jiang12ABDG*

DOI: 10.12659/MSM.911405

Med Sci Monit 2018; 24: MTA8333-8341


BACKGROUND: Endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) has been used for detecting pancreatic cancer. We aimed to compare the diagnostic yield of both 22-gauge and 25-gauge EUS-FNA for the detection of pancreatic cancer.

MATERIAL AND METHODS: We searched the electronic databases including PubMed, EMBASE, Web of Science, Scopus, and Cochrane Library up to June 13, 2017. Two reviewers independently screened studies and extracted data.

RESULTS: We analyzed data from 1824 patients from 16 included studies. The estimated pooled data for the 22-gauge needles reported sensitivity was 0.89 (0.83–0.93), specificity was 1.00 (0.74–1.00), positive LR was 485.28 (2.55–92 000) and negative LR was 0.11 (0.07–0.17). Results for the 25-gauge needles showed the pooled sensitivity, specificity, positive and negative LR was 0.90 (0.86–0.93), 0.99 (0.89–1.00), 59.53 (7.99–443.66), and 0.10 (0.07–0.14), respectively. The 25-gauge needle had significantly higher pooled sensitivity than the 22-gauge needle (0.90 vs. 0.87, χ²=5.26, P=0.02) while there was no difference in the pooled specificity (0.96 vs. 0.98, χ²=2.12, P=0.15). The quality of most studies was assessed favorable using QUADAS-2 (quality assessment of diagnostic accuracy studies-2).

CONCLUSIONS: Our findings revealed that the 25-gauge EUS-FNA used for pancreatic lesions could have a higher diagnostic yield than using 22-gauge EUS-FNA. Nevertheless, well-designed prospective studies recruiting more patients are needed.

Keywords: Diagnosis, Endoscopic Ultrasound-Guided Fine Needle Aspiration

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750