Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Longitudinal Studies01:26

Longitudinal Studies

316
Longitudinal studies are also widely used in other medical and social science fields. For instance, in cardiovascular research, they can monitor patients' health over decades to identify risk factors for heart disease, such as high cholesterol or smoking, and evaluate the long-term effectiveness of preventive measures. Similarly, in mental health studies, researchers might follow individuals from adolescence into adulthood to understand the development and progression of conditions like...
316
Longitudinal Research02:20

Longitudinal Research

12.8K
Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
12.8K
Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies01:27

Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies

2.7K
Assessing and diagnosing Chronic Obstructive Pulmonary Disease (COPD) involves a detailed approach that includes a comprehensive review of medical history, physical examination, and a variety of diagnostic tests. This thorough evaluation is essential to ensure an accurate diagnosis and guide effective management strategies.
Medical History
2.7K
Observational Studies01:11

Observational Studies

10.3K
Observational studies are a type of analytical study where researchers observe events without any interventions. In other words, the researcher does not influence the response variable or the experiment's outcome.
There are three types of observational studies – Prospective, retrospective, and cross-sectional.
Prospective Study
Prospective studies, also known as longitudinal or cohort studies, are carried out by collecting future data from groups sharing similar characteristics. One...
10.3K
Long-term Depression01:03

Long-term Depression

2.7K
Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
Calcium Ion Concentration Mechanism
If over...
2.7K
Long-term Depression01:05

Long-term Depression

32.2K
Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
32.2K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Evaluation of left intraventricular flow dynamics using the novel non-contrast HyperDoppler technique.

European heart journal. Imaging methods and practice·2026
Same author

The Influence of Disease Prevalence on Diagnostic Performance of Lung Ultrasound in Rheumatoid Arthritis-Associated Interstitial Lung Disease.

Chest·2025
Same author

Refining RA-ILD screening: Diagnostic limitations and the emerging role of lung ultrasound.

Seminars in arthritis and rheumatism·2025
Same author

Association between hypogonadism and severity of chronic obstructive pulmonary disease: A cross-sectional study.

Medicina clinica·2024
Same author

Prevalence of hypogonadism in men with and without chronic obstructive pulmonary disease: A cross-sectional study.

Endocrinologia, diabetes y nutricion·2024
Same author

Subcostal right ventricular free wall strain in patients with pulmonary hypertension.

Medicina·2023
Same journal

A double threat: CNS toxoplasmosis and CMV encephalitis in a heart transplant recipient

Revista de la Facultad de Ciencias Medicas (Cordoba, Argentina)·2026
Same journal

Revista de la Facultad de Ciencias Medicas (Cordoba, Argentina)·2026
Same journal

Effectiveness of strategies to prevent burnout syndrome in hospital-based healthcare personnel: an overview of systematic reviews

Revista de la Facultad de Ciencias Medicas (Cordoba, Argentina)·2026
Same journal

Generalized gingival hyperplasia as a late manifestation of multiple myeloma: a case report

Revista de la Facultad de Ciencias Medicas (Cordoba, Argentina)·2026
Same journal

Management of postoperative hypoxemia in pediatric patients with hepatopulmonary syndrome through ventilatory support strategies: a report of three cases

Revista de la Facultad de Ciencias Medicas (Cordoba, Argentina)·2026
Same journal

Steroid-Refractory Cutaneous Graft-versus-Host Disease: a Case Report

Revista de la Facultad de Ciencias Medicas (Cordoba, Argentina)·2026
See all related articles

Related Experiment Video

Updated: Nov 11, 2025

A Method of Trigonometric Modelling of Seasonal Variation Demonstrated with Multiple Sclerosis Relapse Data
10:46

A Method of Trigonometric Modelling of Seasonal Variation Demonstrated with Multiple Sclerosis Relapse Data

Published on: December 9, 2015

10.8K

Long covid: cross sectional study

Manuel Antonio Prieto1, Omar Prieto2, Horacio Matias Castro3

  • 1Central de Emergencias de Adultos. Hospital Italiano de San Justo Agustín Rocca, Buenos Aires, Argentina.. manuel.prieto@hospitalitaliano.org.ar.

Revista De La Facultad De Ciencias Medicas (Cordoba, Argentina)
|March 31, 2021
PubMed
Summary
This summary is machine-generated.

More than half of patients experience persistent symptoms after Coronavirus disease 2019 (COVID-19). Female sex, obesity, middle age, and hospitalization are linked to ongoing COVID-19 symptoms, necessitating medical follow-up.

Keywords:
COVID-19SARS-CoV-2symptoms, fatiguefollow up studies

More Related Videos

Author Spotlight: Advancements in Multiplex Detection of Respiratory Viruses
03:53

Author Spotlight: Advancements in Multiplex Detection of Respiratory Viruses

Published on: November 10, 2023

1.5K
Polar Histogram Visualization of Acute Stress Disorder Scale Scores for Comprehensive Clinical Assessment
08:25

Polar Histogram Visualization of Acute Stress Disorder Scale Scores for Comprehensive Clinical Assessment

Published on: December 6, 2024

646

Related Experiment Videos

Last Updated: Nov 11, 2025

A Method of Trigonometric Modelling of Seasonal Variation Demonstrated with Multiple Sclerosis Relapse Data
10:46

A Method of Trigonometric Modelling of Seasonal Variation Demonstrated with Multiple Sclerosis Relapse Data

Published on: December 9, 2015

10.8K
Author Spotlight: Advancements in Multiplex Detection of Respiratory Viruses
03:53

Author Spotlight: Advancements in Multiplex Detection of Respiratory Viruses

Published on: November 10, 2023

1.5K
Polar Histogram Visualization of Acute Stress Disorder Scale Scores for Comprehensive Clinical Assessment
08:25

Polar Histogram Visualization of Acute Stress Disorder Scale Scores for Comprehensive Clinical Assessment

Published on: December 6, 2024

646

Area of Science:

  • Medical research
  • Public health

Background:

  • Coronavirus disease 2019 (COVID-19) remains a significant global health concern.
  • A substantial percentage of patients continue to experience symptoms weeks after the initial diagnosis.
  • Understanding long-term symptom persistence is crucial for patient management and healthcare planning.

Purpose of the Study:

  • To investigate the prevalence of persistent symptoms following COVID-19.
  • To identify factors associated with the continuation of symptoms post-acute infection.
  • To explore patients' perceptions regarding their recovery and disease experience.

Main Methods:

  • A cross-sectional study was conducted with 85 COVID-19 patients.
  • Participants attended outpatient consultations more than three weeks after disease onset.
  • Data collected included demographics, symptom status, and patient perceptions.

Main Results:

  • Over half (52%) of patients reported persistent symptoms beyond three weeks post-COVID-19.
  • Fatigue (49%) and cough (33%) were the most common lingering symptoms.
  • Factors associated with symptom persistence included female sex, obesity, age (35-55 years), and initial hospitalization.

Conclusions:

  • Persistent symptoms are common after COVID-19, highlighting the need for ongoing medical attention.
  • Specific demographic and clinical factors are associated with prolonged symptom duration.
  • While symptoms typically resolve over time, monitoring is essential for affected individuals.