aScope RhinoLaryngo Supporting Evidence

There are many reasons why choosing a single-use rhinolaryngoscope is beneficial — to the clinician, the practice, and, ultimately, the patient. Our aScope™ 4 RhinoLaryngo Evidence Dossier explores the many health outcomes such as contamination and infection, health economics, product performance, and more. Open one of the sections below to review full-text publications and abstracts with links to their initial publication and research. If you need clinical evidence for an Ambu product, visit our Clinical Evidence page.

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The Single-use Rhinolaryngoscope: An Evaluation and Cost Comparison
Mistry et al.  

A single-arm prospective trial where investigators tracked and followed the use of single-use and reusable scopes through procedures and subsequent processes. The investigation found that the aScope 4 RhinoLaryngo saved $5.66 and $103.32 per procedure when compared to reusable fiberoptic and video rhinolaryngoscopes, respectively. 


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Reusable vs disposable nasopharyngoscopes: Cost analysis and resident survey 
Walczak et al.

This single-center cost analysis in the United States uncovered a total cost per procedure for reusable nasopharyngoscopes of $197.88, compared to a total cost per procedure for the aScope 4 RhinoLaryngo of $170.36.


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A Manufacturer and User Facility Device Experience Analysis of Upper Aerodigestive Endoscopy Contamination: Is Flexible Laynogscopy Different? 
Jiang et al.

FDA Manufacturer and User Facility Device Experience (MAUDE) database houses thousands of medical device reports related to malfunction, patient injury, infection, and even patient death. This investigation reviewed MAUDE reports submitted between 2013 and 2019 regarding reusable nasopharyngoscope microbial contamination. 34% of device reports for reusable nasopharynogscopes were related to contamination, comparable to the frequency of contamination-related reports for reusable bronchoscopes, duodenoscopes, and gastroscopes. 


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Microbiological Sampling of Common Otolaryngological Office Equipment: What Lessons Can We Learn? 
Bhatt et al.

Random microbial sampling was performed on integral components of standard reusable visualization equipment in otolaryngology offices. Prior to microbial sampling, all equipment was decontaminated by following the standard protocol for Cidex soaking.  35% of the 20 samples were contaminated by bacteria, with human contamination found in 20% of the sample sites, including light cables, a laryngoscope eyepiece, and an otoscope handle. 


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Comparative Study on Environmental Impacts of Reusable and Single-Use Bronchoscopes 
Sorenson et al.

Reusable flexible bronchoscopes may have comparable or higher CO2 emissions and material and energy consumption than single-use bronchoscopes.


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Reusable vs disposable nasopharyngoscopes: Cost analysis and resident survey
Walczak et al.

An online survey was distributed to residents across the United States who's institutions have implemented the use of aScope 4 RhinoLaryngo. Analysis of survey results found that aScope 4 RhinoLaryngo received higher ratings than reusable nasopharyngoscopes in ergonomics, setup, convenience, and overall score. 


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First Experiences with a new flexible single-use rhinolaryngoscope with working channel - a preliminary study 
Becker et al.

To assess user feedback on the aScope 4 RhinoLaryngo single-use endoscope, ten consecutive patients with an indication for rhinolaryngoscopy were examined with the single-use interventional scope by six different providers in 18 procedures. After the procedure, the providers completed a questionnaire concerning the image quality, maneuverability, ergonomics, and overall impression of the system on a 5-point scale. The results of the questionnaire indicate that the flexible single-use rhino-laryngoscope with a working channel can be a good alternative to conventional systems.


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Single-use Endoscopy for the Evaluation of Swallowing (FEES)
Cool et al.

The Ambu aScope 4 RhinoLaryngo was utilized by 23 speech language pathologists (SLP) performing FEES with a 100% procedural success rate. Additionally, SLPs highly rated the single-use scope across metrics such as ease of use, ease of insertion, bending capability, no cross-contamination risk, convenience and speed, and overall quality and functionality.  


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Download Evidence Dossier

View published studies on rhinolaryngoscope performance, sterility, cost-effectiveness, and COVID-19 implications. The studies support claims related to Ambu aScope 4 RhinoLaryngo single-use endoscopes.

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