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A Comparison of Commonly Utilized Diagnostic Biopsy Techniques for Pediatric Patients With Cancer: A Systematic
Martha Teke1, Barrie S Rich2, Ashley Walther3
1Department of Surgery, University of Texas at Southwestern Medical Center, Dallas, TX, USA.
Background:
Historically, surgical biopsy (SB) for diagnosis of pediatric solid tumors was considered necessary to provide adequate tissue for histologic and molecular analysis. Less invasive biopsy techniques such as image-guided core needle biopsy (CNB), have shown comparable accuracy with decreased morbidity in some adult studies. However, data regarding the safety and efficacy of CNB in pediatric tumors is limited. This study's aim was to assess the overall rate of successful diagnosis and safety of CNB compared to SB in children with malignancies.
Methods:
A PRISMA compliant systematic review was performed in MEDLINE via PubMed, Embase and CINAHL Plus database searches from 2010 to 2023. Studies were included with relevance to the following clinical question: For children with concern for malignancy requiring biopsy for diagnosis, how does CNB compare to open or laparoscopic/thoracoscopic SB in terms of safety and diagnostic efficacy? Data for patients ≤21 years requiring biopsy for diagnosis of liver tumors, neuroblastoma (NB), soft tissue sarcoma (STS), and lymphoma were included.
Results:
Twenty-seven studies including 2477 patients met inclusion criteria, with 2065 undergoing CNB and 412 SB. Of the 2477 patients, 820 patients had NB, 307 liver tumors, 96 STS, 151 lymphoma, and 1103 patients were from studies that included multiple diagnoses. The average complication rate for CNB was 2.9% compared to 21.4% for SB (p < 0.001). Bleeding was the most common complication in both groups, but significantly higher after SB (22.1% vs 2.3%) (p < 0.001). CNB was diagnostic in 90.8% of patients compared to 98.8% who underwent SB (p < 0.001).
Conclusions:
Rates of successful diagnosis were greater than 90% for both CNB and SB, though significantly higher for SB. Conversely, complication rates were close to ten times higher after SB compared to CNB. Given its relatively lower risk profile, CNB can be a safe and useful diagnostic tool for children with solid malignancies. Research focused on enhancing CNB's diagnostic accuracy while maintaining low morbidity should be further explored.
Level Of Evidence:
Treatment study, Level III.
