Randomised Controlled Trial of the Effect of Alendronate on Vascular Calcification and Arterial Stiffness in Chronic Kidney Disease: A Pilot Study
Abstract
Cardiovascular disease (CVD) is the commonest cause of mortality in patients with chronic kidney disease (CKD) and end-stage kidney disease (ESKD). Reasons for the greater incidence of CVD in this group include traditional CVD risk factors of hypertension, dyslipidemia and diabetes but more importantly also include non-traditional risk factors such as calcium and phosphate imbalance. The latter is thought most likely to contribute to vascular calcification, especially for those on dialysis, and this in turn leads to arterial stiffness and left ventricular hypertrophy, the two commonest cardiovascular complications. Arterial stiffness and calcification have been found to be independent predictors of all-cause and cardiovascular mortality in CKD. Few studies, though, have looked at both structural and functional changes associated with calcification and there have been very few interventional studies addressing this issue.
Control of calcium and phosphate levels in CKD can occur with the use of medications that reduce elevated serum phosphate (phosphate binders, mostly calcium-based) and those to treat hyperparathyroidism (vitamin D and more recently calcium sensing receptor agonists called calcimimetics). These pharmacological managements addressing calcium and phosphate imbalance reduce vascular calcification and CVD. Bisphosphonate therapy may also have a role in reduction of calcification.
Low bone mineral density (BMD) is common in CKD patients and predicts increased…
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design. Reported size: 50 participants or records.
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