NCT06995118 The Application of "HUAXI Hole 1" in Reverse-sequence Endoscopic Nipple-sparing Mastectomy With Direct-to-implant Breast Reconstruction

Trial Parameters

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Brief Summary

This study is a multicenter, open-label, randomized controlled trial. It will prospectively compare outcomes between patients undergoing reverse-sequence endoscopic NSM (R-E-NSM) with direct-to-implant breast reconstruction (DIBR) with the "HUAXI Hole 1" versus without the "HUAXI Hole 1". The study aims to evaluate differences in operative efficiency, surgical safety, postoperative aesthetics, and oncological safety between the two groups.

Eligibility Criteria

Inclusion criteria: * Female patients aged 18-70 years (inclusive18 and 70 years); * Patients eligible for unilateral or bilateral reverse-sequence endoscopic nipple-sparing mastectomy with immediate implant-based breast reconstruction, with concurrent contralateral endoscopic augmentation mammoplasty permitted; * Patients with preoperative pathological confirmation of non-specialized breast cancer (e.g., ductal carcinoma in situ, invasive ductal carcinoma, invasive lobular carcinoma) or eligibility for prophylactic mastectomy; * For non-specialized breast cancer patients, preoperative tumor size ≤5 cm (post-neoadjuvant chemotherapy if applicable), and no clinical or imaging evidence of invasion to the nipple, skin, subcutaneous fat, chest wall (referring to the bony thorax and intercostal muscles, excluding the pectoralis major and minor muscles) or distant metastasis preoperatively; * Patients volunteered to provide informed consent. Exclusion criteria: * History of open breast surge

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