在乳腺癌术中，拥有良好的整体外观和对称度已成为乳腺癌手术管理的重要因素。对侧对称手术的时机问题一直存在争议。由于担心会延迟出现不对称，进而增加延迟性整容修复的需求，因此目前在乳腺癌即刻整形手术中，对侧对称手术（SSP）并不常规提供。本研究旨在评估接受乳腺癌即刻整形手术的患者中SSP后修复的比例。我们回顾了我们机构自2018年引入即刻整形手术以来进行外科治疗的所有乳腺癌患者的前瞻性维护数据库。我们通常会在适当情况下提供SSP。我们通过描述性统计方法评估了即刻整形手术技术、SSP提供和手术、围手术期并发症以及治疗完成后的修复率。在2018年至2022年期间，共有485名乳腺癌患者接受了部分切除术，其中396人（82%）接受了乳腺癌即刻整形手术。在313名接受SSP提供的患者中，272人（87%）接受了手术。该队列的边缘重新切除率为20%。在272名接受SSP的患者中，152人（56%）接受了术中放疗（IORT），105人（39%）接受了外加放疗。有3名患者（1%）在对称侧发生了并发症。没有发生并发症的患者推迟了辅助治疗或要求进行整容修复。有3名患者（1%）由于不对称而需要手术修复。乳腺癌即刻整形手术同时进行对称手术被广泛接受，并且很少需要延迟性的整容修复。在乳腺癌即刻整形手术的外科计划中，应常规与患者讨论同时进行对称手术。© 2023. 外科肿瘤学协会。

In the era of oncoplastic breast conserving-surgery (OBCS), cosmetic outcomes and the desire for symmetry have become essential elements of the surgical management of breast cancer (BC). The timing of contralateral symmetry procedures remains a controversial topic. Simultaneous symmetry procedures (SSP) in OBCS have not been routinely offered due to the perceived risk of delayed asymmetry, potentially increasing the need for delayed cosmetic revision. This study evaluates the rate of revision after SSP in patients undergoing OBCS.We reviewed our institutional prospectively maintained database identifying all BC patients treated surgically since our introduction of oncoplastic surgery in 2018. We routinely offer SSP when appropriate. Descriptive statistics evaluated oncoplastic surgical techniques, SSP offerings and procedures, perioperative complications, and revision rates after treatment completion.Between 2018 and 2022, 485 breast cancer patients underwent partial mastectomy, and 396 (82%) underwent OBCS. Of the 313 patients offered SSP, 272 (87%) accepted. The margin reexcision rate of this cohort was 20%. Of the 272 patients with SSP, 152 (56%) underwent intraoperative radiation therapy (IORT), and 105 (39%) had adjuvant external beam radiation therapy. Three patients (1%) experienced complications involving the symmetry side. No patients with complications experienced a delay in adjuvant therapies or requested cosmetic revisions. Three patients (1%) desired surgical revisions due to asymmetry.Symmetry procedures at the time of OBCS are widely accepted by patients and rarely require delayed cosmetic revision. Simultaneous symmetry procedures should be routinely discussed with patients during the surgical planning of OBCS.© 2023. Society of Surgical Oncology.