Neurology India
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Severe cardiac adverse effects are often related to intravenous phenytoin overdose. However, there is no reported cardiotoxicity resulting from oral overdose of phenytoin. ⋯ To our knowledge, our patient had the most serious cardiovascular toxicity ever reported with chronic oral phenytoin overdose. From emergency department (ED) physician's perspective, when a patient with dysrhythmias and cardiovascular collapse is presented to the ED, severe phenytoin overdose should be considered in patients on oral phenytoin with hyperbilirubinemia, hypoalbuminemia, and severe electrolyte imbalance.
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This report describes a rare case of acquired Ondine's curse. The patient developed central sleep apnea syndrome named Ondine's curse after a brainstem infarction. Lesions involving the descending medullocervical pathways that subserve automatic breathing can result in this syndrome.