Journal of clinical pharmacy and therapeutics · 2012
Junctional bradycardia with verapamil in renal failure--care required even with mild hyperkalaemia.
Клинический случайСтатьяНазвание и аннотация: Перевод в очереди
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Hegazi M O, Aldabie G, Al-Mutairi S, El Sayed A
Аннотация
WHAT IS KNOWN AND OBJECTIVE: Treatment for hypertension with verapamil has a favourable renoprotective effect and is generally considered safe in patients with mild to moderate renal failure. In this report, we highlight the vulnerability of patients with mild to moderate renal failure to verapamil side effects especially in the presence of hyperkalaemia.
CASE SUMMARY AND WHAT IS NEW: We report two cases of junctional bradycardia with slow release (SR) verapamil therapy in the presence of mild hyperkalaemia in patients with mild to moderate chronic renal failure. Verapamil and hyperkalaemia may synergistically increase the vulnerability to atrioventricular conduction delay.
CONCLUSION: Renal failure patients with baseline mild hyperkalaemia are particularly liable to bradyarrhythmias with SR verapamil. In such cases, we would recommend verapamil dose reduction and avoidance of SR formulation. In cases of verapamil toxicity, actively treating any level of hyperkalaemia is recommended.
CASE SUMMARY AND WHAT IS NEW: We report two cases of junctional bradycardia with slow release (SR) verapamil therapy in the presence of mild hyperkalaemia in patients with mild to moderate chronic renal failure. Verapamil and hyperkalaemia may synergistically increase the vulnerability to atrioventricular conduction delay.
CONCLUSION: Renal failure patients with baseline mild hyperkalaemia are particularly liable to bradyarrhythmias with SR verapamil. In such cases, we would recommend verapamil dose reduction and avoidance of SR formulation. In cases of verapamil toxicity, actively treating any level of hyperkalaemia is recommended.