Nauta Allison C, Baltrusch Kyle M, Heston Aaron L, Narayan Sasha K, Gunther Sven, Esmonde Nick O, Blume Kylie S, Mueller Reid V, Hansen Juliana E, Berli Jens Urs
Division of Plastic and Reconstructive Surgery, Oregon Health & Science University, Portland, Ore.
Division of Plastic and Reconstructive Surgery, Case Western Reserve University, University Hospitals Case Medical Center, Cleveland, Ohio.
Plast Reconstr Surg Glob Open. 2019 Mar 13;7(3):e2167. doi: 10.1097/GOX.0000000000002167. eCollection 2019 Mar.
Gender confirming primary breast augmentation is becoming more common. The purpose of this study was to compare the demographic and anatomical differences in cis-female and trans-female populations.
This was a retrospective analysis of trans-female patients and cis-female patients undergoing primary breast augmentation at a single institution. Analysis included patient demographics and preoperative chest measurements including sternal notch to nipple distance (SSN), breast width (BW), nipple to inframammary fold distance (N-IMF), and nipple to midline distance (N-M). Continuous variables were compared using independent tests, and discrete variables were compared using Pearson's χ tests.
Eighty-two trans-female and 188 cis-female patients undergoing primary breast augmentation were included. Trans-female patients were older (40.37 versus 34.07), more likely to have psychological comorbidities (50% versus 12.23%), and had a higher body mass index, 27.46 kg/m versus 22.88 kg/m ( = 1.91E-07), than cis-female patients. Cis-female patients most commonly had an ectomorph body habitus (52% versus 26%), whereas trans-female patients most commonly had an endomorph body habitus (40% versus 7%). Pseudoptosis or ptosis was more commonly seen in cis-female patients ( = 0.0056). There were significant differences in preoperative breast measurements including sternal notch to nipple distance, BW, and N-M between groups, but not in N-IMF. The ratio of BW/N-IMF was statistically significant ( = 2.65E-07 on right), indicating that the similarity in N-IMF distance did not adjust for the difference in BW.
The trans-female and cis-female populations seeking primary breast augmentation have significant demographic and anatomical differences. This has implications for surgical decision-making and planning to optimize outcomes for trans-female patients.
性别确认性一期隆乳术正变得越来越普遍。本研究的目的是比较顺性别女性和跨性别女性人群在人口统计学和解剖学上的差异。
这是一项对在单一机构接受一期隆乳术的跨性别女性患者和顺性别女性患者的回顾性分析。分析内容包括患者人口统计学资料和术前胸部测量，包括胸骨切迹至乳头距离（SSN）、乳房宽度（BW）、乳头至乳房下皱襞距离（N-IMF）以及乳头至中线距离（N-M）。连续变量采用独立t检验进行比较，离散变量采用Pearson卡方检验进行比较。
纳入了82例接受一期隆乳术的跨性别女性患者和188例顺性别女性患者。跨性别女性患者年龄更大（40.37岁对34.07岁），更易患有心理合并症（50%对12.23%），且体重指数更高，分别为27.46kg/m²对22.88kg/m²（P = 1.91E-07），高于顺性别女性患者。顺性别女性患者最常见的体型为瘦长型（52%对26%），而跨性别女性患者最常见的体型为矮胖型（40%对7%）。假性下垂或下垂在顺性别女性患者中更常见（P = 0.0056）。两组之间术前乳房测量存在显著差异，包括胸骨切迹至乳头距离、BW和N-M，但N-IMF无差异。BW/N-IMF的比值具有统计学意义（右侧P = 2.65E-07），表明N-IMF距离的相似性并未调整BW的差异。
寻求一期隆乳术的跨性别女性和顺性别女性人群在人口统计学和解剖学上存在显著差异。这对手术决策和规划具有启示意义，有助于优化跨性别女性患者的手术效果。
