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  • Title: Effects of growth hormone replacement within the KIMS survey on estimated cardiovascular risk and predictors of risk reduction in patients with growth hormone deficiency.
    Author: Schneider HJ, Klotsche J, Wittchen HU, Stalla GK, Schopohl J, Kann PH, Kreitschmann-Andermahr I, Wallaschofski H, German KIMS board and of the DETECT study.
    Journal: Clin Endocrinol (Oxf); 2011 Dec; 75(6):825-30. PubMed ID: 21658091.
    Abstract:
    OBJECTIVE: There is growing evidence for an increased cardiovascular (CV) risk in untreated growth hormone deficiency of adults (GHD). We aimed at estimating CV risk with established algorithms before and during GH replacement in GHD and in healthy controls and at identifying predictors of risk reduction. DESIGN: A prospective, nested case-control study. PATIENTS: We included 344 patients (44·7 ± 14·9 years) from the German Pfizer (formerly Kabi) International Metabolic Database (KIMS) cohort and included a healthy sex- and age-matched control group from a primary care cohort. MEASUREMENTS: We calculated Framingham, Prospective Cardiovascular Münster Heart Study (PROCAM) and European Society of Cardiology (ESC) Score algorithms at all time points. In multivariate analyses, we analysed potential predictors of 2-year reduction in CV risk, defined as a higher than median reduction in risk. RESULTS: In KIMS, the estimated 10-year risks of CV events or CV mortality calculated with Framingham, PROCAM and ESC Score algorithms at baseline were 4·6%, 6·0% and 2·3%, respectively. These dropped to 2·4%, 4·8% and 0·8%, respectively, after 2 years of GH replacement (all P < 0·001 vs baseline) and returned to baseline levels after four years of GH replacement. In controls, the Framingham risk estimates were lower than in KIMS at baseline. All risk estimates increased during follow-up and were significantly higher than in KIMS after four years (all P < 0·01). In backward-selection models, high total cholesterol, low high-density lipoprotein (HDL) cholesterol and male sex were significant predictors of response in most scores. CONCLUSION: Two years of GH replacement decreased CV risk estimates approximately by half. Male sex, high total and low HDL cholesterol levels are potential predictors of good response.
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