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Coronary Artery Bypass GraftingVISENCT01378221

VItamin D Metabolism in SEnescent Cardiac Surgery Patients

An observational study of Coronary Artery Bypass Grafting and Heart Valve Surgery, run by Heart and Diabetes Center North-Rhine Westfalia at 1 site in Germany.

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

Advanced age is associated with an increase in postoperative morbidity and mortality in cardiac surgery patients. In detail, compared with younger patients those aged 75 years and older have significantly higher rates of in-hospital mortality, cerebrovascular events, pneumonia, and dialysis. Read more about this study

Who is it for?
Ages 18 years and older
How many people
75 participants
Where
1 siteGermany
Study dates
Sep 2009to May 2011
Phase
Observational
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: elective cardiac surgery patients receiving isolated coronary artery bypass grafting or combined coronary artery bypass grafting and heart valve surgery

Who may be able to join

  • age: <= 65 years and >= 75 years
  • first elective cardiac surgery (bypass or combined bypass and heart valve surgery)
  • written informed consent

Who cannot join

  • emergency cardiac intervention
  • primary hyperparathyreoidism
  • primary and secondary hypoparathyreoidism
  • daily vitamin D supplementation > 10 micrograms

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • Heart Center North Rhine-Westphalia

    Bad Oeynhausen, North Rhine-Westphalia, 32545

Other trials in Germany

About this study

Official title: Vitamin D Metabolism in Senescent Cardiac Surgery Patients

Advanced age is associated with an increase in postoperative morbidity and mortality in cardiac surgery patients. In detail, compared with younger patients those aged 75 years and older have significantly higher rates of in-hospital mortality, cerebrovascular events, pneumonia, and dialysis. In addition, older cardiac surgery patients have longer mechanical ventilation times. Vitamin D exerts several beneficial effects on the cardiovascular system. Moreover, it has immuno-modulatory and anti-inflammatory properties. The hormonal form of vitamin D, 1,25-dihydroxyvitamin D, is an independent predictor of mid-term mortality in cardiac transplant recipients. 1,25-dihydroxyvitamin D also predicts mid-term and long-term mortality in patients with a high risk for cardiovascular disease. Mild renal impairment, insufficient vitamin D levels, and secondary hyperparathyroidism are common in frail elderly individuals. The present study aimed to investigate whether cardiac surgery exerts age-dependent effects on calciotropic hormones, components of the immune system, and inflammatory processes.It is hypothesized that (i) baseline 1,25-dihydroxyvitamin D levels are lower in patients <= 75 years of age compared to younger patients, (ii) cardiac surgery results in a transient decrease in circulating 1,25-dihydroxyvitamin D, and (iii) that the decrease in 1,25-dihydroxyvitamin D is probably more pronounced in older than in younger cardiac surgery patients.

Keywords
vitamin D, cardiac surgery, inflammation, immune system, age
Medical subject headings
Inflammation

What participants receive

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

Study groups in NCT01378221
Study groupRoleWhat they receive
Group 1cardiac surgery patients age 65 years and less
Group 2cardiac surgery patients aged 75 years and over

What is being measured

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

  1. Peri- and Postoperative Time Course of Circulating 1,25-dihydroxyvitamin D in the First Postoperative Month in Cardiac Surgery Patients

    Measured: change from baseline within 1 month after cardiac surgery

Timeline

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

  1. First posted22 Jun 2011 (estimated)
  2. Study startSep 2009
  3. Primary completionFeb 2011
  4. Study completionMay 2011

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
Cohort
Time perspective
Prospective
Enrolment
75 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01378221
Sponsor's protocol ID
005
Acronym
VISE
Status last verified
Dec 2013
First submitted
20 Jun 2011
Last updated
30 Jan 2014
Data monitoring committee
No

Publications

  • Borgermann J, Lazouski K, Kuhn J, Dreier J, Schmidt M, Gilis-Januszewski T, Knabbe C, Gummert JF, Zittermann A. 1,25-Dihydroxyvitamin D fluctuations in cardiac surgery are related to age and clinical outcome*. Crit Care Med. 2012 Jul;40(7):2073-81. doi: 10.1097/CCM.0b013e31824e8c42.

    PubMed 22584760

Questions about this trial

What is this clinical trial studying?

An observational study of Coronary Artery Bypass Grafting and Heart Valve Surgery, run by Heart and Diabetes Center North-Rhine Westfalia at 1 site in Germany.

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 3 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 30 Jan 2014. 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 Germany. 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?

Yes. Results are posted in the registry (first posted 30 Jan 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Peri- and Postoperative Time Course of Circulating 1,25-dihydroxyvitamin D in the First Postoperative Month in Cardiac Surgery Patients (time frame: change from baseline within 1 month after cardiac surgery). 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 NCT01378221, which also lists 1 linked publication.

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 30 Jan 2014.

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