Research and Development HQ, MERZ Pharmaceuticals GmbH, Frankfurt, Germany.
Dermatol Surg. 2013 Aug;39(8):1217-25. doi: 10.1111/dsu.12240. Epub 2013 May 7.
Marked platysmal bands in the neck are an unwelcome sign of aging. Botulinum neurotoxin type A has been used successfully to treat this indication, but there is a need for a validated tool for accurate assessment of dynamic platysmal bands to evaluate treatment efficacy objectively.
To develop a scale for objective assessment of dynamic platysmal bands and to validate its use in the clinical setting.
A new 5-point photonumeric assessment scale for platysmal bands was developed. Ten experts experienced in aesthetic dermatology used the scale to rate frontal and lateral neck photographs of 50 subjects in two separate validation cycles. Inter- and intrarater reliability of the scale was assessed.
The scale comprises five ratings of platysmal band severity ranging from 0 (no relevant prominence of platysmal bands) to 4 (very severe prominence of platysmal bands). Interrater reliability was "almost perfect," with intraclass correlation coefficients of 0.81 for the first validation cycle and 0.82 for the second. Mean intrarater reliability was also high (0.89), with Pearson correlation coefficients ranging between 0.87 and 0.91.
The new 5-point dynamic platysmal band photonumeric assessment scale is a valuable tool for use in the aesthetic clinical setting.
颈部明显的颈阔肌带是衰老的不受欢迎的标志。A型肉毒毒素已成功用于治疗该病症，但需要一种经过验证的工具来准确评估动态颈阔肌带，以客观评估治疗效果。
开发一种用于客观评估动态颈阔肌带的量表，并验证其在临床环境中的使用。
开发了一种新的 5 分光电评估颈阔肌带的量表。10 位在美学皮肤科方面经验丰富的专家在两个单独的验证周期中使用该量表对 50 名受试者的正面和侧面颈部照片进行评分。评估了该量表的组内和组间可靠性。
该量表包含五个颈阔肌带严重程度的评分，范围从 0（无明显的颈阔肌带突出）到 4（非常严重的颈阔肌带突出）。组间可靠性“几乎完美”，第一次验证周期的组内相关系数为 0.81，第二次验证周期为 0.82。平均组内可靠性也很高（0.89），皮尔逊相关系数在 0.87 到 0.91 之间。
新的 5 分动态颈阔肌带光电评估量表是美学临床环境中一种有价值的工具。
