Does Repeating CT-Guided Transthoracic Fine Needle Aspiration Increase Diagnostic Yield and Complication Rate? A Single Institution Experience
Author(s):
Message:
Abstract:
Background
Transthoracic fine needle aspiration biopsy is a well-established and safe technique for obtaining pulmonary tissue. However, there is very little data about repeating procedure..
Objectives
We aimed to investigate whether repeating CT-guided transthoracic fine needle aspiration (TFNA) increases diagnostic yield and complication rate..Patients and
Methods
Patients underwent TFNA and the final diagnoses achieved were included in the study. Consequently, 316 TFNA procedures performed in 240 patients were investigated retrospectively. A diagnosis was not reached in the first TFNA in 64 patients, then they underwent repeated TFNA. The factors that affected the diagnostic yield and complication rate were recorded..
Results
The final diagnoses of 199 (82.9%) patients were malignant and 41 patients were benign. One hundred seventy six patients underwent the TFNA procedure only once. Sixty-four patients underwent a second procedure, while 12 underwent a third one. The diagnosis rate in the first procedures (diagnosis obtained in 142 out of 240 patients) was 59%. With the repeated procedures, 30 other patients were diagnosed. The diagnosis rate increased to 72% (172 out of 240 patients) (P<0.001). Twenty-nine (9.2%) pneumothoraces in 26 patients were detected in 316 TFNA procedures. In the repeated TFNA group (64 patients) there were seven pneumothoraces (11%) in the first TFNA procedure and six pneumothoraces (9%) in the repeated TFNA procedures (P=0.41). In three patients, pneumothorax was detected in the first and repeated procedures. Pneumothorax was significantly associated with the maximum diameter of the lesion (P=0.003), distance to pleura (P=0.001), contact to the pleura (P=0.0001) and smoking history (pack/year) (P=0.04)..
Conclusion
This study demonstrated that repeating the TFNA procedure in pulmonary lesions improves the diagnostic yield without an increase in the rate of pneumothorax..
Language:
English
Published:
Iranian Journal of Radiology, Volume:10 Issue: 2, Jun 2013
Page:
56
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