Seroma prevention following axillary dissection in patients with breast cancer by using ultrasound scissors: a prospective clinical study
Introduction
Seroma formation following axillary dissection is a common wound complication of both modified radical mastectomy and breast-conserving surgery. The incidence of such occurrence varies widely, according to the type of surgical treatment and the operative techniques used, ranging from less than 10% to more than 50%.1., 2., 3., 4., 5., 6. The optimal way to reduce seroma formation and its pathophysiology are still unknown. Several aetiological factors have been suggested, including patient's age, breast size, number of involved nodes, or use of electocautery, and there are widely varying recommendations to prevent the development of a seroma.7
We report the results of a preliminary prospective trial with the aim to analyse the risk factors of seroma formation and the role of ultrasound scissors (US) in performing axillary dissection in patients undergoing curative surgery for breast cancer (BC).
Section snippets
Methods
Ninety-two women (median age 55 years, range 33–73 years) requiring surgery for known unilateral primary BC were prospectively randomised to undergo axillary dissection by either using (Group A, 45 patients) or not using (Group B, 47 patients) US. Randomisation was obtained by the use of random-number table. There were 27 pre-menopausal women, and 65 post-menopausal women. Written informed consent was obtained from each patient, who agree to participate in a study that had full ethical approval
Results
All patients who were enrolled in the study completed the trial. The main characteristics of the tumours in the overall population at final pathology are reported in Table 1. The mean body mass index (BMI) of the overall population was 24.1±2.8 (range 19.2–31.2) kg/m2. Sixty-three (68.5%) patients had negative nodes (N0), whilst 29 had histologically confirmed lymph node involvement (N1). The mean number of removed nodes was 17.5±4.1 (range 11–27), whilst the number of positive nodes was
Discussion
Unfortunately, in patients with BC undergoing surgery, neither preoperative imaging studies11., 12., 13. nor sentinel node biopsy technique14., 15., 16., 17. may at present reach 100% sensitivity in detecting (or excluding) axillary node metastases. Results are promising, but accuracy of diagnostic tests might be highly dependent on the number of histologically involved lymph nodes, especially when lymph-node micro-metastases could be missed.15 Thus, axillary dissection still represents the
Acknowledgements
A special thank you to Dr Silvia Dall'Acqua for help in writing the manuscript and for reviewing the English.
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