OBJECTIVE: To perform a systematic review and meta-analysis of prospectively conducted studies to define diagnostic performance of endobronchial ultrasound-guided transbronchial needle biopsy (EBUS-TBNB) in mediastinal and hilar lymphadenopathy. METHODS: A comprehensive search was performed using the Embase, Ovid Medline, Ovid Medline In-Process and Other Non-Indexed Citations, All Evidence Based Medicine Reviews-Cochrane Database of Systematic Reviews, American College of Physicians Journal Club, Database of Abstracts of Reviews of Effects (DARE), Cochrane Central Register of Controlled Trials (CCTR), Health Technology Assessment (HTA), and SCOPUS databases, in the second week of November 2010. Studies were selected in 2 phases by 2 reviewers, independently. Data extraction from each study was performed using a standardized data extraction form. Quality assessment of study methodology was done using a checklist that was developed based on a Quality Assessment of Diagnostic Accuracy Studies tool and the nature of the test. Using the 2 × 2 tables, we computed the sensitivity, specificity, and likelihood ratios. RESULTS: The 14 studies included for quantitative data synthesis had a pooled cohort of 1,658 patients, from 8 different countries. The EBUS-TBNB had excellent pooled specificity of 100% (95% CI 0.90-1.00) and a positive likelihood ratio of 5.1 (95% CI 2.7-9.7). The pooled sensitivity was 0.92 (95% CI 0.91-0.93), and the pooled negative likelihood ratio was 0.13 (95% CI 0.09-0.19). The sensitivity of this intervention was not dependent on rapid on-site evaluation use or size of needle used. The pooled diagnostic odds ratio was 62.7 (95% CI 25.7-153.0). Only one major complication was reported, which resulted in early termination of the procedure. CONCLUSIONS: Evidence of moderate quality confirms the high diagnostic performance of EBUS-TBNB for mediastinal and hilar lymphadenopathy, both in malignant and non-malignant conditions. Available evidence also demonstrates the safety of this procedure.
OBJECTIVE: To perform a systematic review and meta-analysis of prospectively conducted studies to define diagnostic performance of endobronchial ultrasound-guided transbronchial needle biopsy (EBUS-TBNB) in mediastinal and hilar lymphadenopathy. METHODS: A comprehensive search was performed using the Embase, Ovid Medline, Ovid Medline In-Process and Other Non-Indexed Citations, All Evidence Based Medicine Reviews-Cochrane Database of Systematic Reviews, American College of Physicians Journal Club, Database of Abstracts of Reviews of Effects (DARE), Cochrane Central Register of Controlled Trials (CCTR), Health Technology Assessment (HTA), and SCOPUS databases, in the second week of November 2010. Studies were selected in 2 phases by 2 reviewers, independently. Data extraction from each study was performed using a standardized data extraction form. Quality assessment of study methodology was done using a checklist that was developed based on a Quality Assessment of Diagnostic Accuracy Studies tool and the nature of the test. Using the 2 × 2 tables, we computed the sensitivity, specificity, and likelihood ratios. RESULTS: The 14 studies included for quantitative data synthesis had a pooled cohort of 1,658 patients, from 8 different countries. The EBUS-TBNB had excellent pooled specificity of 100% (95% CI 0.90-1.00) and a positive likelihood ratio of 5.1 (95% CI 2.7-9.7). The pooled sensitivity was 0.92 (95% CI 0.91-0.93), and the pooled negative likelihood ratio was 0.13 (95% CI 0.09-0.19). The sensitivity of this intervention was not dependent on rapid on-site evaluation use or size of needle used. The pooled diagnostic odds ratio was 62.7 (95% CI 25.7-153.0). Only one major complication was reported, which resulted in early termination of the procedure. CONCLUSIONS: Evidence of moderate quality confirms the high diagnostic performance of EBUS-TBNB for mediastinal and hilar lymphadenopathy, both in malignant and non-malignant conditions. Available evidence also demonstrates the safety of this procedure.
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