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Related Experiment Video

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Validation of the Asian Midface Volume Deficit Severity Scale.

Jingyu Li1, Lei Pan1, Qing Yun2

  • 1Center for Plastic and Reconstructive Surgery, Department of Plastic and Reconstructive Surgery, Zhejiang Provincial People's Hospital(Affiliated People's Hospital), Hangzhou Medical College, 158# Shangtang Road, Hangzhou, Zhejiang, China.

Aesthetic Plastic Surgery
|June 25, 2025
PubMed
Summary

The Asian Midface Volume Deficit Severity Scale (AMVDSS) reliably assesses midface volume loss in Asian individuals. This scale demonstrates substantial to almost perfect agreement among observers and within observers for evaluating facial rejuvenation outcomes.

Keywords:
AestheticsAsianDermal fillersMidface volumeValidation studies

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Area of Science:

  • Aesthetic Medicine
  • Facial Rejuvenation
  • Dermatology

Background:

  • Facial aging patterns and aesthetic needs differ between Asian and Caucasian populations, influencing rejuvenation strategies.
  • Existing methods for assessing midface volume deficits may not adequately address the specific characteristics of Asian facial anatomy.
  • The Asian Midface Volume Deficit Severity Scale (AMVDSS) was developed by LBTD to provide an objective tool for evaluating Asian individuals.

Purpose of the Study:

  • To evaluate the reliability and consistency of the Asian Midface Volume Deficit Severity Scale (AMVDSS) in assessing midface volume deficits.
  • To determine the interobserver and intraobserver agreement for the AMVDSS when applied to randomized photographs of Asian patients.

Main Methods:

  • Four independent observers assessed randomized photographs of 65 Asian patients (18 male, 47 female; mean age 40.9 years) using the AMVDSS.
  • Photographs were taken from multiple angles (front, 45°, and 90° left and right) and rated across two sessions separated by a 2-week interval.
  • Interobserver and intraobserver agreement were quantified using weighted kappa statistics and exact agreement percentages.

Main Results:

  • Interobserver agreement was substantial to almost perfect for both left and right sides across both assessment sessions (weighted κ ranging from 0.774 to 0.938).
  • Exact interobserver agreement ranged from 76.9% to 93.9%, indicating high consistency among raters.
  • Intraobserver agreement was 'almost perfect' for both left and right sides (weighted κ: 0.950 and 0.954, respectively), with exact agreement rates of 95.0% and 95.4%.

Conclusions:

  • The Asian Midface Volume Deficit Severity Scale (AMVDSS) demonstrates high reliability and consistency for assessing midface volume deficits in Asian individuals.
  • The AMVDSS can be effectively used to evaluate outcomes following dermal filler injections for midface rejuvenation in the Asian population.
  • The scale's robust interobserver and intraobserver agreement supports its utility in clinical practice and research for objective assessment.