Videokymographic index of glottic function: an analysis of diagnostic accuracy.
Alice Braga de Deus, Roberto da Costa Quinino, Marco Aurélio Rocha Santos and 1 others
PMID 36259820WHAT IT FOUND
A new index using high-speed video parameters accurately distinguished women with behavioral voice disorders from those without.
It achieved 76.4% sensitivity and 89.2% specificity, offering a quantitative tool to support laryngeal diagnosis in women.
Key findings
01The Videokymographic Index of Glottic Function (VIGF) demonstrated a sensitivity of 76.4% and specificity of 89.2% for detecting laryngeal alterations.
02A VIGF cut-off value of 0.71 indicated a high probability of behavioral dysphonia when values were equal to or greater than this threshold.
03Maximum opening and closed quotient were the significant variables used to construct the final diagnostic model.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
Read the rest of this summary
You get three full summaries a month, free, and we do not ask for a card. Search, the TL;DRs and your library stay unlimited either way.
What it does not show
The study included only female participants, so the index cannot be applied to men. The sample was drawn from a specific database, which may limit generalizability to other populations. High-speed videoendoscopy is a high-cost technology with limited availability in many clinical settings.
Declared interests
Funding was provided by Brazilian government agencies (CAPES and CNPq). No commercial conflicts of interest were declared.
The easy way to misread this
Do not apply this index to male patients or assume it replaces clinical judgment. The study only validated the tool in women with behavioral dysphonia, and the technology required is not yet widely accessible in standard clinics.