Evidence map›Paper›PMID 33658734›Full record

Observational studyBulletin of the World Health Organization2021

Survival after out-of-hospital cardiac arrest, Viet Nam: multicentre prospective cohort study.

Son N Do, Chinh Q Luong, Dung T Pham, Chi V Nguyen, Tra T Ton, Thao Tn Pham, Quoc Ta Hoang, Hanh T Hoang, Dat T Nguyen, Dai Q Khuong and 7 more

Abstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Bulletin of the World Health Organization, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
–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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Observational
  5. Review
  6. Article
  7. Observational
  8. Article
  9. Clinical Outcomes of Out-of-Hospital Cardiac Arrest with ROSC: Insights from a Specialized Referral Center in Vietnam.Acta informatica medica : AIM : journal of the Society for Medical Informatics of Bosnia & Herzegovina : casopis Drustva za medicinsku informatiku BiH · 2025
    Article
  10. Article
  11. Observational
  12. Oxygen targets following cardiac arrest: A meta-analysis of randomized controlled trials.International journal of cardiology. Heart & vasculature · 2023
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Observational
  19. Article
  20. Observational
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

17 authors.

Son N DoEmergency Department, Bach Mai Hospital, 78 Giai Phong Road, Dong Da District, Hanoi, 100000, Viet Nam.
Chinh Q LuongEmergency Department, Bach Mai Hospital, 78 Giai Phong Road, Dong Da District, Hanoi, 100000, Viet Nam.
Dung T PhamDepartment of Nutrition and Food Safety, Thai Binh University of Medicine and Pharmacy, Thai Binh, Viet Nam.
Chi V NguyenEmergency Department, Bach Mai Hospital, 78 Giai Phong Road, Dong Da District, Hanoi, 100000, Viet Nam.
Tra T TonEmergency Department, Cho Ray Hospital, Ho Chi Minh City, Viet Nam.
Thao Tn PhamIntensive Care Unit, Cho Ray Hospital, Ho Chi Minh City, Viet Nam.
Quoc Ta HoangEmergency Department, Hue Central General Hospital, Hue, Viet Nam.
Hanh T HoangIntensive Care Unit, Hue Central General Hospital, Hue, Viet Nam.
Dat T NguyenEmergency Department, Bach Mai Hospital, 78 Giai Phong Road, Dong Da District, Hanoi, 100000, Viet Nam.
Dai Q KhuongEmergency Department, Bach Mai Hospital, 78 Giai Phong Road, Dong Da District, Hanoi, 100000, Viet Nam.
Quan H NguyenEmergency Department, Bach Mai Hospital, 78 Giai Phong Road, Dong Da District, Hanoi, 100000, Viet Nam.
Tuan A NguyenDepartment of Emergency and Critical Care Medicine, Hanoi Medical University, Hanoi, Viet Nam.
Hanh Tm PhamDepartment of Epidemiology, Thai Binh University of Medicine and Pharmacy, Thai Binh, Viet Nam.
My H NguyenFaculty of Public Health, Thai Binh University of Medicine and Pharmacy, Thai Binh, Viet Nam.
Bryan F McNallyDepartment of Emergency Medicine, Emory University School of Medicine, Atlanta, United States of America.
Marcus Eh OngDepartment of Emergency Medicine, Singapore General Hospital, Singapore, Singapore.
Anh D NguyenDepartment of Emergency and Critical Care Medicine, Hanoi Medical University, Hanoi, Viet Nam.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo investigate factors associated with survival after out-of-hospital cardiac arrest in Viet Nam.

methodsWe did a multicentre prospective observational study of people (> 18 years) presenting with out-of-hospital cardiac arrest (not caused by trauma) to three tertiary hospitals in Viet Nam from February 2014 to December 2018. We collected data on characteristics, management and outcomes of patients with out-of-hospital cardiac arrest and compared these data by type of transportation to hospital and survival to hospital admission. We assessed factors associated with survival to admission to and discharge from hospital using logistic regression analysis.

findingsOf 590 eligible people with out-of-hospital cardiac arrest, 440 (74.6%) were male and the mean age was 56.1 years (standard deviation: 17.2). Only 24.2% (143/590) of these people survived to hospital admission and 14.1% (83/590) survived to hospital discharge. Most cardiac arrests (67.8%; 400/590) occurred at home, 79.4% (444/559) were witnessed by bystanders and 22.3% (124/555) were given cardiopulmonary resuscitation by a bystander. Only 8.6% (51/590) of the people were taken to hospital by the emergency medical services and 32.2% (49/152) received pre-hospital defibrillation. Pre-hospital defibrillation (odds ratio, OR: 3.90; 95% confidence interval, CI: 1.54-9.90) and return of spontaneous circulation in the emergency department (OR: 2.89; 95% CI: 1.03-8.12) were associated with survival to hospital admission. Hypothermia therapy during post-resuscitation care was associated with survival to discharge (OR: 5.44; 95% CI: 2.33-12.74).

conclusionImprovements are needed in the emergency medical services in Viet Nam such as increasing bystander cardiopulmonary resuscitation and public access defibrillation, and improving ambulance and post-resuscitation care.

Indexed as

Emergency Medical ServicesFemaleHumansMaleMiddle AgedOut-of-Hospital Cardiac ArrestProspective StudiesRisk FactorsSurvival AnalysisTransportation of PatientsVietnam

Identifiers

PMID33658734
PMCPMC7924896

What OpenQuestion holds

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Registered trials

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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.