Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology · 2022
Renal sympathetic denervation in resistant hypertension: The association between vitamin D and positive early response in systolic blood pressure.
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Costa Gonçalo, Delgado-Silva Joana, Monteiro Eric, Campos Diana, Gonçalves Lino
Аннотация
AIMS AND OBJECTIVES: Vitamin D deficiency is a common finding and there is a suggested association with hypertension. Resistant hypertension is a clinical problem observed in 5-30% of hypertensive patients. Renal denervation (RDN) has been used for patients with resistant hypertension and has proven to lower blood pressure. Our primary goal was to assess the vitamin D serum concentration as a predictor of blood pressure response to RDN in highly selected patients.
METHODS: This prospective, nonrandomized, single-center study included 24 patients treated with RDN. Based on their one-year response after RDN, patients were classified as responders or non-responders at six months or at 12 months.
RESULTS: The median follow-up was 52 months (range, 14-91 months). After RDN, 17 patients (70.8%) had a reduction >5 mmHg in the mean systolic blood pressure, at the first six months of follow-up. At 12 months, 20 patients (83.3%) were responders. Vitamin D levels at baseline (15.1±4.8 vs. 24.2±8.8 ng/ml) and at six months (16.6±7.2 vs. 25±9.2 ng/ml) were lower in early non-responders compared to early responders (p=0.008), without significant variation during follow-up. Even though Vitamin D levels were lower in the total responder's group, no statistically significant differences were found (p=ns).
CONCLUSION: In patients with resistant hypertension, low vitamin D concentrations were associated with an absence of early response to RDN.
METHODS: This prospective, nonrandomized, single-center study included 24 patients treated with RDN. Based on their one-year response after RDN, patients were classified as responders or non-responders at six months or at 12 months.
RESULTS: The median follow-up was 52 months (range, 14-91 months). After RDN, 17 patients (70.8%) had a reduction >5 mmHg in the mean systolic blood pressure, at the first six months of follow-up. At 12 months, 20 patients (83.3%) were responders. Vitamin D levels at baseline (15.1±4.8 vs. 24.2±8.8 ng/ml) and at six months (16.6±7.2 vs. 25±9.2 ng/ml) were lower in early non-responders compared to early responders (p=0.008), without significant variation during follow-up. Even though Vitamin D levels were lower in the total responder's group, no statistically significant differences were found (p=ns).
CONCLUSION: In patients with resistant hypertension, low vitamin D concentrations were associated with an absence of early response to RDN.