Out-Of-Hospital Cardiac ArrestNCT06896006
Epidemiological Study of Out-of-hospital Cardiac Arrest in Shenzhen
An observational study of Out-Of-Hospital Cardiac Arrest, run by Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University.
Trial summary
The epidemiology of out-of-hospital cardiac arrest (OHCA) is a significant public health issue, and large-sample studies on such events within China are relatively limited. This study utilizes the Utstein model to evaluate and analyze the epidemiological characteristics of OHCA in Shenzhen from 2011 to 2018. Read more about this study
- Who is it for?
- Ages 18 to 120 years
- Conditions the study is for
- Out-Of-Hospital Cardiac Arrest
- How many people
- 19,672 participants
- Where
- No sites listed yet
- Study dates
- 1 Jan 2011to 31 Dec 2018
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 120 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: The data source consists of ambulance dispatch records and prehospital medical records documented by the Shenzhen Emergency Medical Center from 2011 to 2018.
Who may be able to join
- Cases with secondary diagnoses containing only the diagnostic keywords "cardiac arrest" and "sudden death"
Who cannot join
- 1. Cases with suicide, drowning, advanced cancer, trauma, shock, poisoning, cerebrovascular accidents, etc. 2.Cases with duplicate records for gender, age, time of call, pick-up and drop-off address, and initial diagnosis.
About this study
The epidemiology of out-of-hospital cardiac arrest (OHCA) is a significant public health issue, and large-sample studies on such events within China are relatively limited. This study utilizes the Utstein model to evaluate and analyze the epidemiological characteristics of OHCA in Shenzhen from 2011 to 2018. By reviewing ambulance dispatch records and prehospital medical records from the Shenzhen Emergency Medical Center between 2011 and 2018, the study analyzed epidemiological characteristics and reported the results. The main indicators of the study include demographic characteristics such as the gender, age, location of occurrence, key time points, vital signs, chief complaints, and diagnoses of the cases. It also covers prehospital emergency treatment processes, including whether bystanders performed CPR, initial electrocardiogram results, intravenous access establishment, use of epinephrine, defibrillation, tracheal intubation, and other interventions, as well as the outcomes of resuscitation.
- Conditions
- Out-Of-Hospital Cardiac Arrest
- Medical subject headings
- Out-of-Hospital Cardiac Arrest
What is being measured
The primary outcome is the main question the study is designed to answer.
Crude incidence rate
The frequency of new cases of a disease in a given population over a given period of time.
Measured: 2011-01-01 to 2018-12-31
Age standardized incidence rate
Incidence rates after removing the influence of age, and incidence rates normalised by age.
Measured: 2011-01-01 to 2018-12-31
Annual percentage change
Indicates the change from one year to the next within a segment at a constant percentage on a log-linear model for evaluating trends within segments.
Measured: 2011-01-01 to 2018-12-31
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted26 Mar 2025
- Study start1 Jan 2011
- Primary completion31 Dec 2018
- Study completion31 Dec 2018
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Out-Of-Hospital Cardiac ArrestStudies of the same condition, open and under way.
- More trials run by Sun Yat-Sen Memorial Hospital of Sun Yat-Sen UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Retrospective
- Enrolment
- 19,672 participants (actual)
Sponsor and investigators
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06896006
- Sponsor's protocol ID
- SYSKY-2024-266-01
- Status last verified
- Jul 2024
- First submitted
- 20 Mar 2025
- Last updated
- 26 Mar 2025
- Results posted
- No
- Data monitoring committee
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 26 Mar 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Epidemiological Study of Out-of-hospital Cardiac Arrest in Shenzhen
- ClinicalTrials.gov ID
- NCT06896006
- Acronym / sponsor ID
- SYSKY-2024-266-01
- Conditions
- Out-Of-Hospital Cardiac Arrest
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 19,672 participants (actual)
- Lead sponsor
- Sun Yat-Sen Memorial Hospital of Sun Yat-Sen UniversityUniversity, hospital or other
- Study start
- 1 Jan 2011 (actual)
- Primary completion
- 31 Dec 2018 (actual)
- Study completion
- 31 Dec 2018 (actual)
- First posted
- 26 Mar 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The epidemiology of out-of-hospital cardiac arrest (OHCA) is a significant public health issue, and large-sample studies on such events within China are relatively limited. This study utilizes the Utstein model to evaluate and analyze the epidemiological characteristics of OHCA in Shenzhen from 2011 to 2018. By reviewing ambulance dispatch records and prehospital medical records from the Shenzhen Emergency Medical Center between 2011 and 2018, the study analyzed epidemiological characteristics and reported the results. The main indicators of the study include demographic characteristics such as the gender, age, location of occurrence, key time points, vital signs, chief complaints, and diagnoses of the cases. It also covers prehospital emergency treatment processes, including whether bystanders performed CPR, initial electrocardiogram results, intravenous access establishment, use of epinephrine, defibrillation, tracheal intubation, and other interventions, as well as the outcomes of resuscitation.
Study design
- Observational model
- Cohort
- Time perspective
- Retrospective
Who may qualify
- Ages
- 18 to 120 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- The data source consists of ambulance dispatch records and prehospital medical records documented by the Shenzhen Emergency Medical Center from 2011 to 2018.
Key inclusion criteria (1 listed)
- Cases with secondary diagnoses containing only the diagnostic keywords "cardiac arrest" and "sudden death"
Key exclusion criteria (1 listed)
- 1. Cases with suicide, drowning, advanced cancer, trauma, shock, poisoning, cerebrovascular accidents, etc. 2.Cases with duplicate records for gender, age, time of call, pick-up and drop-off address, and initial diagnosis.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Crude incidence rate
Time frame: 2011-01-01 to 2018-12-31
The frequency of new cases of a disease in a given population over a given period of time.
Age standardized incidence rate
Time frame: 2011-01-01 to 2018-12-31
Incidence rates after removing the influence of age, and incidence rates normalised by age.
Annual percentage change
Time frame: 2011-01-01 to 2018-12-31
Indicates the change from one year to the next within a segment at a constant percentage on a log-linear model for evaluating trends within segments.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 26 Mar 2025.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
Questions about this trial
What is this clinical trial studying?
An observational study of Out-Of-Hospital Cardiac Arrest, run by Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 26 Mar 2025. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Crude incidence rate (time frame: 2011-01-01 to 2018-12-31). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Mar 2025.