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1.
Nefrologia (Engl Ed) ; 2024 Jun 12.
Article in English | MEDLINE | ID: mdl-38871560

ABSTRACT

Contrast-induced encephalopathy is a neurological complication related to contrast used in endovascular procedures or computed tomography (CT). The main risk factors are arterial hypertension, diabetes mellitus, chronic kidney disease (CKD), hyperosmolar contrasts, the amount of infused contrast and its direct infusion in the posterior cerebral territory, or pathologies with blood-brain barrier damage. Symptomatology is non-specific and may present as altered level of consciousness, neurological focality or seizures. Diagnosis is done by exclusion after ischemic or hemorrhagic stroke has been ruled out; CT or MRI are useful for differentiation. Generally, it appears shortly after exposure and the symptoms lasts 48-72h with complete recovery, although cases with persistence of symptoms or longer duration have been described. Treatment consists of monitoring, supportive measures and kidney replacement therapy (KRT) with hemodialysis (HD) in patients in chronic KRT program. It is important for the nephrologist to be aware of this entity given the susceptibility of the patient on HD as well as its potential therapeutic role in these patients.

2.
Am J Nephrol ; 54(7-8): 291-298, 2023.
Article in English | MEDLINE | ID: mdl-37311444

ABSTRACT

INTRODUCTION: Adherence to a low-sodium (Na) diet is crucial in patients under hemodialysis, as it improves cardiovascular outcomes and reduces thirst and interdialytic weight gain. Recommended salt intake is lower than 5 g/day. The new 6008 CAREsystem monitors incorporate a Na module that offers the advantage of estimating patients' salt intake. The objective of this study was to evaluate the effect of dietary Na restriction for 1 week, monitored with the Na biosensor. METHODS: A prospective study was conducted in 48 patients who maintained their usual dialysis parameters and were dialyzed with a 6008 CAREsystem monitor with activation of the Na module. Total Na balance, pre-/post-dialysis weight, serum Na (sNa), changes in pre- to post-dialysis sNa (ΔsNa), diffusive balance, and systolic and diastolic blood pressure were compared twice, once after 1 week of patients' usual Na diet and again after another week with more restricted Na intake. RESULTS: Restricted Na intake increased the percentage of patients on a low-Na diet (<85 Na mmol/day) from 8% to 44%. Average daily Na intake decreased from 149 ± 54 to 95 ± 49 mmol, and interdialytic weight gain was reduced by 460 ± 484 g per session. More restricted Na intake also decreased pre-dialysis sNa and increased both intradialytic diffusive balance and ΔsNa. In hypertensive patients, reducing daily Na by more than 3 g Na/day lowered their systolic blood pressure. CONCLUSIONS: The new Na module allowed objective monitoring of Na intake, which in turn could permit more precise personalized dietary recommendations in patients under hemodialysis.


Subject(s)
Sodium Chloride, Dietary , Sodium , Humans , Prospective Studies , Renal Dialysis/methods , Diet, Sodium-Restricted , Blood Pressure , Weight Gain
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