Medicina clinica
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Observational Study
Hyperparathyroidism in patients with low bone mineral density treated with zoledronic acid or denosumab.
To analyze the prevalence of hyperparathyroidism in patients treated with zoledronic acid (ZA) or denosumab, its relationship with other parameters and how it affects on bone mineral density (BMD) evolution. ⋯ A high incidence of hyperparathyroidism was observed in patients treated with AZ and especially denosumab. Hyperparathyroidism correlated inversely with glomerular filtration rate and albumin-corrected calcium. Elevated PTH does not appear to affect short-term bone mineral density evolution.
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Hyponatraemia has negative effects on cognitive function and gait stability and is a risk factor for osteoporosis, falls, fractures and hospital mortality. Acute hyponatraemia can lead to neurological dysfunction due to cerebral oedema. Its rapid correction can also be fatal, leading to osmotic demyelination syndrome. For some antiepileptics, thiazides, benzodiazepines or antidepressants this reaction is widely described. Knowing which drugs are most likely to cause hyponatraemia will allow early detection and prevention of its complications, as well as individualising the prescription of these drugs according to the patient's characteristics. ⋯ There are increasing reports of drug-induced hyponatraemia. It can be serious and seems to most often affect women over 65 years of age who take more than 1 medication. The time to onset varies and can be very long, so patient monitoring should be continuous throughout treatment. Hydrochlorothiazide is the drug with the highest number of reported cases in our setting. In terms of disproportionate reporting, diuretics leads the list, followed by antiepileptics as oxcarbazepine and eslicarbazepine. Safety signals were found for several drugs, more plausibly for pregabalin and paliperidone, thus a possible association between these drugs and hyponatraemia/SIAD is identified. This signal must be further studied. Meanwhile healthcare professionals should pay attention to this possibility. The reporting of suspected ADRs is essential to understand the risks associated with medicines once they are on the market.