BACKGROUND Chest wall perforator flaps are emerging in oncoplastic breast conservation, mostly as an alternative to mastectomy. However, standardization and consensus on patient selection, techniques, and outcomes have not yet been reached. The aim of this international multicentre collaborative study was to explore practice patterns and outcomes in high-volume centres from different countries. METHODS Patients with both pre-invasive and invasive breast cancer treated at the Uppsala University Hospital in Uppsala, Sweden, the Royal Marsden Hospital in London, UK, and the Westmead Breast Cancer Institute in Sydney, Australia, were included in this study. The rationale for offering chest wall perforator flaps and surgical outcomes were prospectively documented. RESULTS In total, 603 patients were analysed median age of 54 (interquartile range (i.q.r.) 48-63) years, median BMI of 25.0 (i.q.r. 22.5-28.1) kg/m2, median tumour extent of 30 (IQR 19-45) mm, median breast volume of 280 (i.q.r. 216-430) ml, and median calculated resection ratio of 16% (i.q.r. 9%-28%). In 67.7%, the treating surgeon had offered chest wall perforator flaps to avoid mastectomy. The procedure was performed as day surgery in 69.5% of patients, with an overall complication rate of 8.6% and the majority of complications being classified as Clavien-Dindo grade I (5.3% of patients). The re-excision rate was 15.9%, with only 1.5% of patients converting to a mastectomy. There were no flap losses. At a median follow-up of 22 (range 12 to 98) months, rates of local recurrence, distant recurrence, and breast cancer-related mortality were 1.9%, 4.9%, and 1.7% respectively. CONCLUSION Chest wall perforator flaps are a useful option to allow more women to avoid mastectomy. In experienced hands, the procedure is safe and should be offered to suitable patients.

中文翻译：

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胸壁穿支皮瓣是安全的，可以降低乳腺癌手术中的乳房切除术率：多中心队列研究。


背景 胸壁穿支皮瓣正在肿瘤整形保乳术中出现，主要作为乳房切除术的替代方法。然而，尚未就患者选择、技术和结果达成标准化和共识。这项国际多中心合作研究的目的是探索来自不同国家的高容量中心的实践模式和结果。方法 本研究纳入了在瑞典乌普萨拉乌普萨拉大学医院、英国伦敦皇家马斯登医院和澳大利亚悉尼韦斯特米德乳腺癌研究所治疗的浸润前和浸润性乳腺癌患者。前瞻性记录了提供胸壁穿支皮瓣的基本原理和手术结局。结果共分析了 603 例患者，中位年龄为 54 岁 （四分位距 （i.q.r.） 48-63） 岁，中位 BMI 为 25.0 （i.q.r. 22.5-28.1） kg/m2，中位肿瘤范围为 30 （IQR 19-45） mm，中位乳房体积为 280 （i.q.r. 216-430） ml，中位计算切除率为 16% （i.q.r. 9%-28%）。在 67.7% 的患者中，主治外科医生提供了胸壁穿支皮瓣以避免乳房切除术。该手术在 69.5% 的患者中作为日间手术进行，总体并发症发生率为 8.6%，大多数并发症被归类为 Clavien-Dindo I 级 （5.3% 的患者）。再切除率为 15.9%，只有 1.5% 的患者转为乳房切除术。没有皮瓣损失。中位随访 22 个月 （范围 12 至 98） 个月时，局部复发率、远处复发率和乳腺癌相关死亡率分别为 1.9% 、 4.9% 和 1.7%。结论 胸壁穿支皮瓣是让更多女性避免乳房切除术的有用选择。 在有经验的人中，该程序是安全的，应该提供给合适的患者。