Adolescent ; Adult ; Aged ; Biopsy, Needle/methods* ; Breast/pathology* ; Breast Neoplasms/diagnosis ; Breast Neoplasms/diagnostic imaging ; Breast Neoplasms/pathology ; Breast Neoplasms/surgery* ; Female ; Humans ; Learning Curve ; Middle Aged ; Operative Time ; Postoperative Complications/epidemiology ; Retrospective Studies ; Ultrasonography, Interventional/methods* ; Ultrasonography, Mammary/methods ; Vacuum ; Young Adult
Keywords
Breast neoplasms ; learning curve ; needle biopsy ; operative surgical procedure ; vacuum-assisted breast biopsy
Abstract
Background : Vacuum-assisted breast biopsy system (VAB) is an alternative modality to core needle biopsy for the diagnosis of breast lesions. Material and methods : Fifty-four patients who underwent ultrasound-guided VAB procedures were analyzed. Patients were categorized into two groups: The first 20 consecutive patients as group A and the next 34 consecutive patients as group B. Results : Fifty-two patients underwent excision, and two underwent biopsy only. Moving average curves showed a plateau phase for performing VAB procedures after the 20th patient. Total operation times of group B were significantly shorter than those of group A (p < 0.001). Complication rates in group B tended to be lower, and VAB probe position of group B tended to be better than that of group A, but these differences were not statistically significant. Conclusion : Our data suggest the existence of a learning curve for ultrasound-guided VAB procedures. VAB procedures can be performed safely, even during the early learning period.