Pulmonologist performed ultrasound-guided fine-needle aspiration of lung lesions

SESSION TITLE: Procedures Posters 2 SESSION TYPE: Original Investigation Posters PRESENTED ON: 10/10/2023 12:00 pm - 12:45 pm PURPOSE: To evaluate the diagnostic accuracy and complication rate of pulmonologist-performed ultrasound guided fine needle aspiration of peripheral lung lesions, and compared the result with radiologist-performed ultrasound guided core needle biopsy of peripheral lung lesions METHODS: We retrospectively evaluated the diagnostic accuracy and complication rate of pulmonologist-performed ultrasound guided fine needle aspiration of lung lesions in the period of 1st August 2019 to 30th June 2021 (pulmonologist group) and radiologist-performed ultrasound guided core needle biopsy of lung lesions in the period of 1st January 2010 to 31st December 2014 (radiologist group) in the Princess Margaret Hospital, Hong Kong. RESULTS: There were 105 patients with 113 episodes of pulmonologist-performed ultrasound guided fine needle aspiration and 65 patients with 68 episodes of ultrasound guided core needle biopsy performed by radiologist. There was no statistically significant difference in gender, smoking status and lung mass size between the two groups. There were statistically significant differences between the two groups in age (p-value = 0.02) and lung mass location (p-value = 0.049). In the pulmonologist group, the diagnostic accuracy was 80.4% (95% CI 72-86.7%). The sensitivity was 80% (95% CI 71.6%-86.4%) and negative predictive value was 8.3% (95% CI 2.3%-25.8%). The specificity and positive predictive value were both 100%. In the radiologist group, the diagnostic accuracy was 86.8% (95% CI 76.7-92.9%). The sensitivity was 86.4% (95% CI 76.1%-92.7%) and negative predictive value was 18.2% (95% CI 5.1%-47.7%). The specificity and positive predictive value were both 100%. The diagnostic accuracy (80.4% vs 86.8%, p-value = 0.27), sensitivity (80% vs 86.4%, p-value = 0.283) and negative predictive value (8.3% vs 18.2%, p-value = 0.575) of pulmonologist and radiologist group were comparable. The overall complication rates for pulmonologist group and radiologist group were 5.3% and 7.4% respectively (p-value = 0.749). CONCLUSIONS: Ultrasound guided fine needle aspiration of peripheral lung lesions by pulmonologists is an accurate and safe procedure. CLINICAL IMPLICATIONS: Pulmonologists should be encouraged to perform this procedure for making early diagnoses. DISCLOSURES: No relevant relationships by Chin Tong Kwok No relevant relationships by Yiu Cheong Yeung