Acta neurochirurgica · 2026
Quantitative facial analysis using emotrics in patients undergoing vestibular schwannoma surgery.
СтатьяНазвание и аннотация: Перевод в очереди
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Bubeníková Adéla, Fík Zdeněk, Tesařová Michaela, Peterková Lenka, Koucký Vladimír, Lazák Jan, Kabo Anna, Gorchakov Amir, Betka Jan, Zvěřina Eduard, Bradáč Ondřej, Vlasák Aleš
Аннотация
OBJECTIVE: Facial nerve dysfunction is a common complication after vestibular schwannoma (VS) resection. Traditional grading scales such as House-Brackmann (HB), Sunnybrook, and Fisch are subjective and prone to inter-rater variability. Emotrics, a computer vision-based tool, offers objective facial analysis, but its role in neurosurgical populations remains underexplored.
METHODS: Patients undergoing VS surgery were prospectively enrolled in this study. Standardized frontal facial photographs were taken preoperatively, at discharge, and at three-month follow-up. Emotrics quantified facial symmetry and movement across static, dynamic, and synkinesis domains. Composite scores were generated and compared with clinical grading scales and patient characteristics.
RESULTS: Thirty-six patients (mean age 51.2 ± 12.3 years) were included. Emotrics detected significant improvement in dynamic function (mean score: 0.41 at discharge vs. 0.56 at 3 months, p < 0.01) and synkinesis (0.62 to 0.51, p < 0.05); static symmetry remained stable. Strongest correlations with clinical grading were found at discharge and 3 months. Discharge Emotrics total scores correlated significantly with HB (r = -0.883, p < 0.001), Sunnybrook (r = 0.892, p < 0.001), and Fisch (r = 0.883, p < 0.001). At 3 months, dynamic scores remained strongly associated with HB (r = -0.799), Sunnybrook and Fisch (r = 0.790; p = 0.001). Worse Emotrics outcomes were linked to older age (62.1 vs. 48.6 years, p = 0.04) and larger tumor volume (8.2 vs. 4.5 cm3, p = 0.03).
CONCLUSIONS: Emotrics offers objective assessment of facial nerve function, correlates well with clinical scales, and enhances evaluation of dynamic facial recovery. Its integration may refine postoperative monitoring and guide rehabilitation.
METHODS: Patients undergoing VS surgery were prospectively enrolled in this study. Standardized frontal facial photographs were taken preoperatively, at discharge, and at three-month follow-up. Emotrics quantified facial symmetry and movement across static, dynamic, and synkinesis domains. Composite scores were generated and compared with clinical grading scales and patient characteristics.
RESULTS: Thirty-six patients (mean age 51.2 ± 12.3 years) were included. Emotrics detected significant improvement in dynamic function (mean score: 0.41 at discharge vs. 0.56 at 3 months, p < 0.01) and synkinesis (0.62 to 0.51, p < 0.05); static symmetry remained stable. Strongest correlations with clinical grading were found at discharge and 3 months. Discharge Emotrics total scores correlated significantly with HB (r = -0.883, p < 0.001), Sunnybrook (r = 0.892, p < 0.001), and Fisch (r = 0.883, p < 0.001). At 3 months, dynamic scores remained strongly associated with HB (r = -0.799), Sunnybrook and Fisch (r = 0.790; p = 0.001). Worse Emotrics outcomes were linked to older age (62.1 vs. 48.6 years, p = 0.04) and larger tumor volume (8.2 vs. 4.5 cm3, p = 0.03).
CONCLUSIONS: Emotrics offers objective assessment of facial nerve function, correlates well with clinical scales, and enhances evaluation of dynamic facial recovery. Its integration may refine postoperative monitoring and guide rehabilitation.