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Diagnostic Performance of Cardiovascular Autonomic NeuropathyNCT02459522

Bayesian Estimation of Diagnostic Performance for Cardiovascular Autonomic Neuropathy

An observational study of Diagnostic Performance of Cardiovascular Autonomic Neuropathy, run by Shanghai Tongji Hospital, Tongji University School of Medicine at 1 site in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study aimed to evaluate the reference values for the short-term heart rate variable (HRV), estimate the performance of cardiovascular autonomic neuropathy (CAN) diagnostic tests in the absence of a gold standard, and assess CAN prevalence in our cross-sectional dataset. Read more about this study

Who is it for?
Ages 30 to 80 yearsHealthy volunteers can take part
What is being tested?
not intervention
How many people
88 participants
Where
1 siteChina
Study dates
Jan 2011to Jun 2016
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 30 to 80 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Individuals with inclusion and exclusion criteria were recruited from healthy examination centres to assess cardiovascular autonomic function using both the short-term heart rate variability and Ewing's tests.

Who may be able to join

  • Survey participants with undiagnosed CAN, aged 30-80 years, were included in this study.

Who cannot join

  • Some subjects were excluded from the study to eliminate potential confounding factors that may have influenced their CA function 11. Briefly, the exclusion criteria were as follows:
  • history or findings of arrhythmia, and hyperthyroidism or hypothyroidism;
  • pregnancy or lactation; and/or
  • serious hepatic or renal dysfunctions.

Trial locations and contacts

1 site in 1 country.

China1 site
  • Shanghai Tongji Hospital

    Shanghai, Shanghai Municipality, 200065

Other trials in China

About this study

Official title: Bayesian Estimation of Diagnostic Performance of Short-term Heart Rate Variability for Cardiovascular Autonomic Neuropathy Without a Gold Standard

This study aimed to evaluate the reference values for the short-term heart rate variable (HRV), estimate the performance of cardiovascular autonomic neuropathy (CAN) diagnostic tests in the absence of a gold standard, and assess CAN prevalence in our cross-sectional dataset.

Read the detailed description

The CAN prevalence is rapidly growing in all populations worldwide. No document has been reported about normal reference values for CAN using this test in the Chinese population. This study aimed to evaluate the reference values for the short-term HRV in a large cross-sectional dataset, and to estimate sensitivities and specificities of CAN diagnostic tests using the Bayesian approach, in the absence of a gold standard in another independence dataset. Finally, CAN prevalence was estimated in the investigators' cross-sectional dataset. Firstly, the reference the values for the short-term HRV were calculated in the investigators' previous study (including 371 healthy subjects). This study dataset contained 88 subjects who completed both the short-term HRV test and Ewing's test. Simultaneous inferences about the population prevalence and the performance of each diagnostic test were possible using the Bayesian approach without a gold standard.

Being tested
not intervention
Keywords
Bayesian estimation, short-term heart rate variability, cardiovascular autonomic neuropathy, diagnostic performance

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • not interventionOther

    This is a cross-sectional study for estimation of diagnostic performance.

Study groups in NCT02459522
Study groupRoleWhat they receive
Dr.Tang's research groupThis group included participants with completed both the short-term HRV test and Ewing's test.
Receives: Other: not intervention

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Cardiovascular autonomic function evaluate by short-term heart rate variability test

    Both short-term heart rate variability and Ewing's test measure cardiovascular autonomic function

    Measured: participants will be measured for the duration of outpatient stay, an expected average of two days

  2. Cardiovascular autonomic function evaluate by Ewing's test

    Both short-term heart rate variability and Ewing's test measure cardiovascular autonomic function

    Measured: participants will be measured for the duration of outpatient stay, an expected average of two days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted2 Jun 2015 (estimated)
  2. Study startJan 2011
  3. Primary completionMay 2016
  4. Study completionJun 2016

Resources

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
Ecologic or community
Time perspective
Cross-sectional
Enrolment
88 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02459522
Sponsor's protocol ID
CANHRVB_Dr.Tang
Status last verified
Sep 2016
First submitted
27 May 2015
Last updated
22 Sep 2016
Results posted
No
Data monitoring committee
Yes

Publications

  • Zeng F, Tang ZH, Li Z, Yu X, Zhou L. Normative reference of short-term heart rate variability and estimation of cardiovascular autonomic neuropathy prevalence in Chinese people. J Endocrinol Invest. 2014 Apr;37(4):385-91. doi: 10.1007/s40618-013-0047-4. Epub 2014 Jan 9.

    PubMed 24633734
  • Tang ZH, Zeng F, Yu X, Zhou L. Bayesian estimation of cardiovascular autonomic neuropathy diagnostic test based on baroreflex sensitivity in the absence of a gold standard. Int J Cardiol. 2014 Feb 15;171(3):e78-80. doi: 10.1016/j.ijcard.2013.11.100. Epub 2013 Dec 6. No abstract available.

    PubMed 24360155
  • Tang ZH, Wang L, Zeng F, Li Z, Yu X, Zhang K, Zhou L. Bayesian estimation of cardiovascular autonomic neuropathy diagnostic test based on short-term heart rate variability without a gold standard. BMJ Open. 2014 Oct 6;4(9):e005096. doi: 10.1136/bmjopen-2014-005096.

    PubMed 25287103
  • Tang ZH, Zeng F, Ye K, Yu X, Zhou L. The analysis of a reference value for baroreflex sensitivity and cardiovascular autonomic neuropathy prevalence in a Chinese population. Eur J Med Res. 2014 Feb 12;19(1):8. doi: 10.1186/2047-783X-19-8.

    PubMed 24521230

Questions about this trial

What is this clinical trial studying?

An observational study of Diagnostic Performance of Cardiovascular Autonomic Neuropathy, run by Shanghai Tongji Hospital, Tongji University School of Medicine at 1 site in China.

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 4 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 22 Sep 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

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?

Cardiovascular autonomic function evaluate by short-term heart rate variability test (time frame: participants will be measured for the duration of outpatient stay, an expected average of two days). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02459522, which also lists 4 linked publications.

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 22 Sep 2016.

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