Department of Surgery, Tehran University of Medical Sciences, Tehran, Iran; Department of Surgical Oncology, University of Montreal, Montreal, Canada.
Department of Surgery, Tehran University of Medical Sciences, Tehran, Iran.
J Surg Res. 2023 Mar;283:713-718. doi: 10.1016/j.jss.2022.11.002. Epub 2022 Nov 30.
Despite the development of breast-conserving surgery in breast cancer treatment, there still remain indications for total mastectomy. Since mastectomy has a significant negative impact on the patients' quality of life, breast reconstruction is increasingly popular. However, for patients with large ptotic breasts who do not choose tissue-based reconstruction techniques and prefer implant-based breast reconstruction, there is no single-stage breast reconstruction technique other than the classic technique using Acellular Dermal Matrix (ADM).
This study presents a novel technique for Nipple-Sparing Mastectomy (NSM) and Immediate Breast reconstruction (IBR) in 11 operations (in seven patients) whose treatment decision-making was based on NCCN guidelines. In this technique, the implant/tissue expander is covered by the pectoral muscle in the upper part and an autologous dermal flap in the lower part, replacing an ADM. The dermal flap is created from the de-epithelialized lower mastectomy flap in these large ptotic breasts. Maintaining the nipple-areola complex (NAC) is possible by re-implanting a free nipple split-thickness graft from the NAC of the ipsilateral breast prepared at the beginning of the operation.
All seven patients had large ptotic breasts ranging from C cup to double D in size and grade 2 and higher breast ptosis. The mean BMI of the patients was 28 (range: 26-33). No major complications occurred postoperatively. There were three minor complications, all managed conservatively. Surgical indications were risk reduction surgery in three patients with BRCA mutations and therapeutic in the remaining patients (three multifocal invasive ductal carcinomas and one diffused ductal carcinoma in situ). None of the patients had a previous reduction mammoplasty as preparation for NSM, and all the patients underwent a single operation. No breast tissue remained under the NAC, which is ideal with the NSM technique.
The proposed technique is excellent for implant-based IBR in patients with large ptotic breasts. It eliminates the use of ADM mesh and reduces the cost and postoperative complication rate associated with ADM. Furthermore, using a free nipple graft technique can eliminate the need for a preparatory mastopexy. This technique can also theoretically reduce the risk of recurrence or new primary breast cancer as there are no remaining ducts beneath the nipple-areola complex.
尽管保乳手术在乳腺癌治疗中得到了发展,但仍存在全乳房切除术的指征。由于乳房切除术对患者的生活质量有重大负面影响,因此乳房重建越来越受欢迎。然而,对于那些不选择组织重建技术且更喜欢基于植入物的乳房重建的大垂乳患者,除了使用脱细胞真皮基质(ADM)的经典技术外,没有单一阶段的乳房重建技术。
本研究介绍了一种新的乳头保留乳房切除术(NSM)和即刻乳房重建(IBR)技术,该技术共应用于 11 例手术(7 例患者),其治疗决策基于 NCCN 指南。在该技术中,植入物/组织扩张器的上半部分由胸肌覆盖,下半部分由自体真皮瓣覆盖,替代 ADM。在这些大垂乳中,从去上皮化的下乳房切除术皮瓣中创建真皮瓣。通过重新植入从手术开始时同侧乳房准备的乳头乳晕复合体(NAC)中切取的游离乳头半厚皮片,可以保持 NAC。
7 例患者均为大垂乳,乳房大小从 C 罩杯到双 D 罩杯不等,乳房下垂程度为 2 级及以上。患者的平均 BMI 为 28(范围:26-33)。术后无重大并发症发生。有 3 例轻微并发症,均经保守治疗处理。手术指征为 3 例 BRCA 突变患者的降低风险手术和其余患者(3 例多灶性浸润性导管癌和 1 例弥漫性导管原位癌)的治疗。所有患者均未接受过 NSM 术前的乳房缩小术准备,且所有患者均接受了单手术治疗。在 NSM 技术中,NAC 下没有残留的乳腺组织,这是理想的。
对于大垂乳患者,该技术是基于植入物的 IBR 的理想选择。它消除了 ADM 网的使用,降低了与 ADM 相关的成本和术后并发症发生率。此外,使用游离乳头移植物技术可以避免进行预备乳房下垂术。从理论上讲,该技术还可以降低乳头乳晕复合体下没有残留导管的情况下,复发或新发原发性乳腺癌的风险。