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VItamin D Metabolism in SEnescent Cardiac Surgery Patients (VISE)

H

Heart and Diabetes Center North-Rhine Westfalia

Status

Completed

Conditions

Heart Valve Surgery
Coronary Artery Bypass Grafting

Study type

Observational

Funder types

Other

Identifiers

Details and patient eligibility

About

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.

Enrollment

75 patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

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

Exclusion criteria

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

Trial design

75 participants in 2 patient groups

Group 1
Description:
cardiac surgery patients age 65 years and less
Group 2
Description:
cardiac surgery patients aged 75 years and over

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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