Evidence map›Paper›PMID 33892403›Full record

ReviewDiabetes & metabolic syndrome

Long COVID: An overview.

A V Raveendran, Rajeev Jayadevan, S Sashidharan

Erratum issued 4 registry-linked trialsAbstract readReview
PubMed Full text at PMC Publisher
In one paragraph

Review in Diabetes & metabolic syndrome. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to 4 registered trials, which are not on this map. Cited by 399 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
399citing papers in PubMed, 8 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT05386485 unknown statusnot on this map

FUNCTION Study: Follow- Up Study iN SARS-CoV-2 infecTION. Long-term Impact on Cardiopulmonary Function and Quality of Life in Patients Recovered From SARS-CoV-2 Infection in Lima, Peru

TypeobservationalSponsorUniversidad Peruana Cayetano HerediaRan2021 to 2022Enrolled162ConditionsCOVID-19ArmsNone intervation
NCT05531019 nacompletednot on this map

COVID-19 Sequelae: Treatment and Monitoring of Persistent Symptoms, a Decentralized Approach Focus on the Patient. Use of Dietary Supplement Based on Sea Urchin Eggs With Echinochroma A.

TypeinterventionalSponsorFernando SaldariniRan2021 to 2022Enrolled54ConditionsLong COVIDArmsEchinochrome A, Control
NCT05638620 phase1completednot on this map

Evaluating the Effectiveness of Dual Sympathetic Blocks for Patients Experiencing Sympathetically-Mediated Symptoms From Post-Acute Sequelae of SARS-CoV-2 (PASC)

TypeinterventionalSponsorJonathann Kuo, MDRan2023 to 2023Enrolled20ConditionsPost Acute COVID-19 Syndrome, Long COVID, Long Covid19, COVID-19 RecurrentArmsstellate ganglion block with 0.5% bupivacaine
NCT05918965 naunknown statusnot on this map

Effects of Transcutaneous Electrical Neurostimulation on Female Patients With Long COVID - a Pilot Study

TypeinterventionalSponsorMedical University of ViennaRan2023 to 2025Enrolled45ConditionsVagus Nerve Diseases, Long COVID, Long Covid19, Post-COVID-19 SyndromeArmstranscutaneous electrical vagal neurostimulation
3 · Its place in the literature

Who cites it

399 citing papers in PubMed, 8 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Prevalence and symptoms of Long Covid-19 in the workplace.Occupational medicine (Oxford, England) · 2025
    Pooled it
  5. Pooled it
  6. Pooled it
  7. Blood Biomarkers of Long COVID: A Systematic Review.Molecular diagnosis & therapy · 2024
    Pooled it
  8. Pooled it
  9. Trial
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  15. Trial
  16. An open trial of biofeedback for long COVID.Journal of psychosomatic research · 2024
    Trial
  17. Experiences of people with long COVID: Symptoms, support strategies and the Long COVID Optimal Health Programme (LC-OHP).Health expectations : an international journal of public participation in health care and health policy · 2024
    Trial
  18. Trial
  19. Trial
  20. Article

339 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors.

A V RaveendranGovt. Medical College, Manjeri,Kottayam, Kozhikode, Kerala, India; Specialist in Internal Medicine, Badr Al Samaa, Barka, Oman. Electronic address: raveendranav@yahoo.co.in.
Rajeev JayadevanSunrise Hospital, Kakkanad, Kerala, India.
S SashidharanKoyas Hospital, Kozhikode, Kerala, India.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

aimsLong COVID is the collective term to denote persistence of symptoms in those who have recovered from SARS-CoV-2 infection.

methodsWE searched the pubmed and scopus databases for original articles and reviews. Based on the search result, in this review article we are analyzing various aspects of Long COVID.

resultsFatigue, cough, chest tightness, breathlessness, palpitations, myalgia and difficulty to focus are symptoms reported in long COVID. It could be related to organ damage, post viral syndrome, post-critical care syndrome and others. Clinical evaluation should focus on identifying the pathophysiology, followed by appropriate remedial measures. In people with symptoms suggestive of long COVID but without known history of previous SARS-CoV-2 infection, serology may help confirm the diagnosis.

conclusionsThis review will helps the clinicians to manage various aspects of Long COVID.

Indexed as

CoughCOVID-19FatigueHumansPost-Acute COVID-19 SyndromeSARS-CoV-2Long COVID”“Long haulers”“Post COVID syndrome”

Identifiers

PMID33892403
PMCPMC8056514

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.