Park Jae Hyun, Kim Narae, You Seung Hyun
Dana Plastic Surgery Clinic, Seoul, Korea.
J Cosmet Dermatol. 2024 Oct;23(10):3347-3355. doi: 10.1111/jocd.16429. Epub 2024 Jun 18.
Hair transplant (HT) is the standard treatment for female pattern hair loss (FPHL), but scalp micropigmentation (SMP) is an alternative. Currently, there are no criteria to help choose between HT and SMP.
Forty female patients with FPHL who had successfully undergone HT and SMP, were reviewed to identify factors that might help decide between treatments. Hair density (HD) and hair caliber were measured at the part line and mid-occipital region by a Folliscope. The sensitivity and specificity of HT and SMP were determined by area under the curve (AUC) and receiver operating characteristic curve.
Patients were divided into HT (n = 23) and SMP (n = 17) groups. The follicular unit density (FUD) (HT: 62.06 ± 4.8551/cm; SMP: 66.59 ± 3.4971/cm) and HD (HT: 96.16 ± 16.6954/cm; SMP: 116.08 ± 17.0520/cm) were significantly different (p < 0.01) between groups. The AUC for FUD was 77.6% with a cutoff value of 66.83 and 87.0% (1-0.412) sensitivity. The AUC for HD was 82.4% with a cutoff value of 96.17 and 69.6% (1-0.118) sensitivity.
HD was the most important factor when deciding between HT surgery and SMP. SMP is recommended when the HD is ≥104.6 hairs/cm and HT surgery is strongly recommended when the HD is ≤96.17 hairs/cm.
毛发移植（HT）是女性型脱发（FPHL）的标准治疗方法，但头皮微色素沉着（SMP）是一种替代方法。目前，尚无帮助在HT和SMP之间进行选择的标准。
对40例成功接受HT和SMP的FPHL女性患者进行回顾，以确定可能有助于在两种治疗方法之间做出决定的因素。使用毛囊镜在发际线和枕骨中部区域测量头发密度（HD）和头发直径。通过曲线下面积（AUC）和受试者工作特征曲线确定HT和SMP的敏感性和特异性。
患者分为HT组（n = 23）和SMP组（n = 17）。两组之间的毛囊单位密度（FUD）（HT：62.06±4.855 1/cm；SMP：66.59±3.497 1/cm）和HD（HT：96.16±16.695 4/cm；SMP：116.08±17.052 0/cm）有显著差异（p <0.01）。FUD的AUC为77.6%，临界值为66.83，敏感性为87.0%（1 - 0.412）。HD的AUC为82.4%，临界值为96.17，敏感性为69.6%（1 - 0.118）。
在决定进行HT手术和SMP时，HD是最重要的因素。当HD≥104.6根/厘米时，建议采用SMP；当HD≤96.17根/厘米时，强烈建议进行HT手术。
