Evaluating the Quality of Rigid Optic Videolaryngoscopy Image Taken Through Dental Protection Cap and Its Feasibility as Additional Barrier Method Against COVID-19.
Mariana Nagata Cavalheiro, Vinicius Ribas Fonseca, Bianca Simone Zeigelboim and 5 others
PMID 33168360WHAT IT FOUND
Using a disposable dental cap on a rigid laryngoscope did not lower image quality or diagnostic confidence in healthy volunteers.
The cap offers a feasible barrier method without compromising the visual assessment of the larynx.
Key findings
01Image quality scores were statistically similar when the laryngoscope was used with and without the dental protection cap.
02Experts rated their confidence in making a diagnosis equally high regardless of whether the cap was used.
03Higher image quality was positively associated with higher confidence in the diagnosis in both the capped and uncapped conditions.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
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What it does not show
The study was performed on only 12 healthy volunteers, so it does not reflect the difficulty of imaging patients with laryngeal pathologies or anatomical variations. The sample size is very small, limiting the generalizability of the findings. The study evaluated a specific brand of dental cap and a specific rigid scope; results may not apply to other equipment.
Declared interests
No specific conflicts of interest or funding sources are declared in the provided text.
The easy way to misread this
Do not assume this cap provides adequate protection against infection or eliminates the need for high-level disinfection. The study only evaluated image quality and diagnostic confidence, not microbiological safety or the cap's integrity during use.