Related Experiment Video
Updated: Oct 22, 2025

Minimally Invasive Murine Laryngoscopy for Close-Up Imaging of Laryngeal Motion During Breathing and Swallowing
Published on: December 1, 2023
Postacute COVID-19 Laryngeal Injury and Dysfunction
Andrew J Neevel1, Joshua D Smith2, Robert J Morrison2
1University of Michigan Medical School, Ann Arbor, Michigan, USA.
COVID-19 survivors may experience voice, airway, and swallowing problems. These laryngeal complications can occur even without intubation or tracheostomy, requiring specialized care.
Area of Science:
- Otolaryngology
- Pulmonology
- Infectious Diseases
Background:
- COVID-19 can lead to laryngeal injury and dysfunction.
- Respiratory failure and prolonged intubation are risk factors for these complications.
Purpose of the Study:
- To report clinical features and treatment of voice, airway, and swallowing issues post-COVID-19.
- To analyze laryngeal sequelae in patients recovering from COVID-19.
Main Methods:
- Retrospective case series of 24 patients evaluated by a laryngology team.
- Data collected from March 2020 to April 2021, including COVID-19 course and laryngeal assessment.
- Analysis of presenting symptoms and diagnosed laryngeal conditions.
Main Results:
- 19 patients (79%) presented with dysphonia, 17 (71%) with dyspnea, and 6 (25%) with dysphagia.
- Vocal fold motion impairment, glottic injury, and stenosis were common in intubated patients.
- Muscle tension dysphonia was frequent in non-intubated patients.
Conclusions:
- Significant voice, airway, and swallowing issues can arise post-COVID-19.
- Complications are not limited to intubated or tracheostomized patients.
- Multidisciplinary clinics are crucial for managing COVID-19-related laryngeal sequelae.
Related Concept Videos
Larynx
Anatomy of the Larynx
The larynx consists of various components, including cartilage, muscles, and vocal cords. Its structure includes three large unpaired cartilages—the thyroid, cricoid, and epiglottis—and three smaller paired cartilages—the arytenoids,...
Cardiopulmonary Resuscitation V: Advanced Airway Management Techniques
Acute Respiratory Failure-V
Ensure that patients are monitored continuously for their response to therapy, including changes in...
Tracheostomy Decannulation
Description of the Procedure
Decannulation refers to the permanent removal of the tracheostomy tube, signaling the resolution of the condition that initially necessitated the tracheostomy. The process requires a well-coordinated interplay between...
Pneumonia III: Complications and Assessment
Endotracheal Intubation II: Nursing Management
1. Nursing Care of Patients Before Intubation
Before the endotracheal intubation procedure, nurses play an essential role in ensuring the process goes smoothly. The nurses must be familiar with intubation...

