激光脱毛量增加与皮瓣疾病患者复发概率降低相关。

Increasing Amount of Hair Reduction using Laser Correlates with Lower Probability of Recurrence in Patients with Pilonidal Disease.

机构信息

Division of Pediatric Surgery, Department of Surgery, Stanford University, Stanford, CA, USA.

Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX, USA.

出版信息

J Pediatr Surg. 2023 Jul;58(7):1332-1336. doi: 10.1016/j.jpedsurg.2023.02.054. Epub 2023 Feb 25.

DOI:10.1016/j.jpedsurg.2023.02.054

PMID:36934004

Abstract

BACKGROUND

Hair at the gluteal cleft plays a key role in the development and recurrence of pilonidal disease (PD). We hypothesized that more hair reduction achieved using laser could correlate with lower chance of PD recurrence.

METHODS

PD patients who underwent laser epilation (LE) were categorized by Fitzpatrick skin type, hair color, and hair thickness. Photos taken at LE sessions were compared to determine hair reduction amount. LE sessions completed prior to the recurrences were recorded. Groups were compared using multivariate T-test.

RESULTS

198 PD patients had mean age 18.1 ± 3.6 years. 21, 156, and 21 patients had skin types 1/2, 3/4, and 5/6, respectively. 47 patients had light- and 151 had dark-colored hair. 29 patients had fine hair, 129 medium, and 40 thick. Median follow-up was 217 days. 95%, 70%, 40%, and 19% of patients reached 20%, 50%, 75%, and 90% hair reduction after mean LE sessions of 2.6, 4.3, 6.6, 7.8 sessions, respectively. To reach 75% hair reduction, patients require a mean of 4.8-6.8 LE sessions, depending on different skin/hair characteristics. PD recurrence rate was 6%. Probability of recurrence after 20%, 50%, 75% hair reduction was decreased by 50%, 78%, 100%, respectively. Dark hair and skin type 5/6 were associated with higher recurrence rates.

CONCLUSION

Patients with dark-color and thick hair require more LE sessions to achieve certain degree of hair reduction. Patients with dark hair and skin type 5/6 were more likely to recur; more hair reduction correlated with lower chance of recurrence.

LEVEL OF EVIDENCE

Level IV.

摘要

背景

臀部裂沟处的毛发在皮瓣疾病（PD）的发展和复发中起着关键作用。我们假设，使用激光实现的毛发减少越多，PD 复发的可能性就越低。

方法

接受激光脱毛（LE）的 PD 患者按 Fitzpatrick 皮肤类型、头发颜色和头发厚度进行分类。比较 LE 疗程中的照片以确定毛发减少量。记录复发前完成的 LE 疗程。使用多元 T 检验比较各组。

结果

198 例 PD 患者的平均年龄为 18.1 ± 3.6 岁。21、156 和 21 例患者的皮肤类型分别为 1/2、3/4 和 5/6。47 例患者的头发颜色较浅，151 例患者的头发颜色较深。29 例患者的头发细软，129 例患者的头发中等，40 例患者的头发粗硬。中位随访时间为 217 天。95%、70%、40%和 19%的患者在平均进行 2.6、4.3、6.6 和 7.8 次 LE 疗程后，达到 20%、50%、75%和 90%的毛发减少。为了达到 75%的毛发减少，患者需要进行平均 4.8-6.8 次 LE 疗程，具体取决于不同的皮肤/毛发特征。PD 复发率为 6%。达到 20%、50%和 75%毛发减少后，复发的概率分别降低了 50%、78%和 100%。深色头发和 5/6 型皮肤与更高的复发率相关。