PB1846 ANTHROPOMETRIC AND HORMONAL PARAMETERS IN COMPARISON WITH BONE MINERAL DENSITY IN MEN WITH HAEMOPHILIA FROM LOWER SILESIA ‐ PRELIMINARY REPORT

Background:In patients with haemophilia, recurrent episodes of bleeding lead to joint deterioration and bone resorption. To date, the effect of various risk factors on the bone mineral density (BMD) reduction have found conflicting results.Aims:The aim of the study was to analyze the impact of certain parameters, such as: viral status of patients, estradiol, testosteron, parathormone and vitamin D levels in relation to bone density.Methods:24 men with moderate and severe haemophilia, aged 18‐35 were enrolled. BMD at the lumbar spine, trabecular bone score (TBS) and total body densitometry were measured using dual X ray absorptiometry method (DXA) (densitometer Horizon, Hologic, 2017). Blood analyses were performed for morphology parameters, liver and kidney function parameters, HCV, HBV, HIV viral status, estradiol, testosteron, DHEA‐S, TSH, parathormone and Vitamin D levels.Results:The study population included 24 men with haemophilia A, who had been receiving prophylactic factor replacement therapy. HCV seropositivity was found in 6/24 patients (25%), whereas HBV seropositivity was detected in 4 patients (16,7%). There was no patient infected with HIV virus. No statistical correlation was found between BMD and viral serological status. It was found that in 15/24 patients BMD was normal with a Z‐score of > ‐1 (62,5%), whereas in 9/24 patients (37,55%), BMD was decreased. In hemophilic patients with normal BMD Z‐score, the increased BMI, androidal fat deposit (AFD), gynoidal fat deposit (GFD), fat mass index (FMI), free fat mass index (FFMI), Estimated visceral adipose tissue (Est VAT) mass were detected. Among all analyzed hormones, only serum estradiol concentration was statistically higher in patients with normal BMD. In 17/24 examined patients Vitamin D deficiency (<20 ng/ml) was detected (71%), although Vitamin D insufficiency (<30 ng/ml) was found in 4/24 patients (16,7%). Three patients (12,5%) had a normal Vitamin D concentration.Summary/Conclusion:The higher BMD in haemophilic patients is related with certain anthropometric parameters, such as body‐fat‐, free‐fat‐mass indexes and visceral fat tissue. BMD negatively correlated with % body fat, androidal fat mass and PTH, whereas TBS negatively related with androidal/visceral fat mass. We found that Vitamin D deficiency is very common in haemophilic patients, however there was no correlation between Vitamin D levels and BMD.