Related Experiment Video
Updated: Oct 11, 2025

Halogenated Agent Delivery in Porcine Model of Acute Respiratory Distress Syndrome via an Intensive Care Unit Type Device
Published on: September 24, 2020
Impact of SARS-CoV-2 Infection Among Non-Invasive Ventilated ALS Patients
Miguel Oliveira Santos1,2, Sara Domingues3, Marta Gromicho2
1Institute of Physiology, Instituto de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal.
Background:
The impact of SARS-CoV-2 infection among neuromuscular diseases with respiratory involvement, including amyotrophic lateral sclerosis (ALS), is still to be elucidated.
Objectives:
We aim to characterize the clinical outcome of ALS patients non-invasive ventilated (NIV), following SARS-CoV-2 infection.
Methods:
We analyzed retrospectively our patients followed regularly at our ALS clinic, from the beginning of the COVID-19 pandemic (middle March 2020) to March 2021. We included patients on NIV with a documented SARS-CoV-2 infection. We recorded demographic and clinical data, including from the acute infectious illness.
Results:
Three men with spinal-onset ALS are described, mean age of onset was 55±9.1 years (45-61), and mean disease duration was 17.5±15.9 months (6.1-41). All of them were wheelchair-bounded, with a mean ALSFRS-R of 15.3±0.6 (15-16). One patient used NIV 15 hours/day, 2 between 4 to 7 hours/day, and all used assisted coughing twice daily. None had coexistent comorbidities. They were managed for SARS-CoV-2 infection as outpatients with fluticasone, bronchodilators, azithromycin and increasing frequency of assisted coughing. Supplemental oxygen (mean of 2 liters per minute) was needed in two patients, and one required NIV also during the daytime. Total recovery from SARS-CoV-2 infection was observed in all, despite being in an advanced stage of their disease, with severe respiratory involvement.
Conclusions:
Prompt medical treatment is recommended for ALS patients with severe disease infected by SARS-CoV-2.
More Related Videos
Related Concept Videos
Acute Respiratory Failure-II
The underlying physiological abnormalities that contribute to hypoxemic respiratory failure include:
Mechanical Ventilation II: Invasive Ventilation
Negative-Pressure Ventilators
Negative-pressure ventilators create a vacuum around the chest or body to draw air into the lungs, simulating breathing. This method does not require an...
Acute Respiratory Failure-I
Definition: It is defined by specific criteria based on blood gas measurements. Hypoxemia happens when the partial pressure of oxygen (PaO2) falls below 60 mmHg. At the same time,...
Acute Respiratory Failure-V
Ensure that patients are monitored continuously for their response to therapy, including changes in...
Acute Respiratory Failure-III
Factors Affecting Pulmonary Ventilation
Alveolar Surface Tension
The alveolar fluid lines the luminal surface of the alveoli and exerts a force called surface tension. This force is caused by the polar water molecules in the liquid being more strongly attracted to each...

