Related Experiment Video
Updated: Oct 19, 2025
Lung CT Segmentation to Identify Consolidations and Ground Glass Areas for Quantitative Assesment of SARS-CoV Pneumonia
Published on: December 19, 2020
[Long COVID: long-term symptoms and morphological/radiological correlates]
Majda M Thurnher1, Wolfgang Reith2, Alexander P Thurnher3
1Universitätsklinik für Radiologie und Nuklearmedizin, Allgemeines Krankenhaus Wien, Währinger Gürtel 18-20, 1090, Wien, Österreich. Majda.thurnher@meduniwien.ac.at.
Long COVID, or post-acute sequelae of SARS-CoV-2 infection, can cause persistent symptoms in survivors of any COVID-19 severity. Long-term monitoring is essential for understanding and managing these debilitating effects.
Area of Science:
- Medical research
- Infectious diseases
- Neurology
Background:
- Persistent symptoms post-COVID-19, known as long COVID or post-acute sequelae of SARS-CoV-2 infection (PASC), affect individuals regardless of initial illness severity.
- Some patients, termed COVID-19 long haulers, experience debilitating symptoms even after mild infections, sometimes without laboratory confirmation.
Purpose of the Study:
- To present the symptoms, signs, and biomarkers associated with long COVID.
- To discuss potential underlying mechanisms and consequences of these persistent post-COVID-19 conditions.
Main Methods:
- Analysis of existing literature on long COVID.
- Review of reported cases and expert opinions regarding post-acute sequelae of SARS-CoV-2 infection.
Main Results:
- Long COVID impacts survivors across all disease severities, including mild and moderate cases, and younger adults without severe initial symptoms.
- Lack of laboratory confirmation in some long COVID patients presents diagnostic challenges, while some symptoms may stem from critical illness or treatment side effects.
Conclusions:
- The long-term duration of long COVID effects remains unknown due to the novelty of COVID-19.
- Ongoing monitoring of post-acute COVID-19 symptoms and screening for comorbidities are crucial for patient management.
Related Concept Videos
01:25Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.
Symptoms of COPD can be classified as primary or systemic. Primary symptoms relate to reduced airflow, while systemic or extrapulmonary symptoms relate to COPD's broader impact on the body.
Primary Symptoms of COPD:
01:20COPD: Pathogenesis and Clinical Features
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
01:27Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies
Medical History
01:22Aortic Regurgitation II: Clinical Features and Diagnostic Tests
01:20Imaging Studies for Cardiovascular System III: X-Ray
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
01:13Radiological Investigation III: Pulmonary Angiogram and PET Scan
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...