Oral Phenytoin Toxicity Causing Sinus Arrest: A Case Report

We present a case of sinus node arrest leading to symptomatic junctional bradycardia from oral phenytoin toxicity, which is a rare presentation. Our patient had no prior cardiac history and was on phenytoin therapy for seizure disorder. Although bradycardia is more commonly associated with intraveno...

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Main Authors: Ravi K. Thimmisetty, Janardhana Rao Gorthi, Mahmoud Abu Hazeem
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Case Reports in Cardiology
Online Access:http://dx.doi.org/10.1155/2014/851767
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author Ravi K. Thimmisetty
Janardhana Rao Gorthi
Mahmoud Abu Hazeem
author_facet Ravi K. Thimmisetty
Janardhana Rao Gorthi
Mahmoud Abu Hazeem
author_sort Ravi K. Thimmisetty
collection DOAJ
description We present a case of sinus node arrest leading to symptomatic junctional bradycardia from oral phenytoin toxicity, which is a rare presentation. Our patient had no prior cardiac history and was on phenytoin therapy for seizure disorder. Although bradycardia is more commonly associated with intravenous phenytoin and there were few case reports of bradycardia with oral phenytoin reported, the literature is limited. In this case report, we also reviewed the pathophysiology of phenytoin-induced cardiac toxicity.
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institution Kabale University
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spelling doaj-art-e4619a0792264b83beb796bbce96eb492025-08-20T03:26:27ZengWileyCase Reports in Cardiology2090-64042090-64122014-01-01201410.1155/2014/851767851767Oral Phenytoin Toxicity Causing Sinus Arrest: A Case ReportRavi K. Thimmisetty0Janardhana Rao Gorthi1Mahmoud Abu Hazeem2Department of Internal Medicine, Creighton University Medical Center, 601 N 30th Street, Omaha, NE 68131-0216, USADivision of Cardiology, University of Minnesota, Mayo Mail Code 508, 420 Delaware Street SE, Minneapolis, MN 55455, USADepartment of Internal Medicine, Creighton University Medical Center, 601 N 30th Street, Omaha, NE 68131-0216, USAWe present a case of sinus node arrest leading to symptomatic junctional bradycardia from oral phenytoin toxicity, which is a rare presentation. Our patient had no prior cardiac history and was on phenytoin therapy for seizure disorder. Although bradycardia is more commonly associated with intravenous phenytoin and there were few case reports of bradycardia with oral phenytoin reported, the literature is limited. In this case report, we also reviewed the pathophysiology of phenytoin-induced cardiac toxicity.http://dx.doi.org/10.1155/2014/851767
spellingShingle Ravi K. Thimmisetty
Janardhana Rao Gorthi
Mahmoud Abu Hazeem
Oral Phenytoin Toxicity Causing Sinus Arrest: A Case Report
Case Reports in Cardiology
title Oral Phenytoin Toxicity Causing Sinus Arrest: A Case Report
title_full Oral Phenytoin Toxicity Causing Sinus Arrest: A Case Report
title_fullStr Oral Phenytoin Toxicity Causing Sinus Arrest: A Case Report
title_full_unstemmed Oral Phenytoin Toxicity Causing Sinus Arrest: A Case Report
title_short Oral Phenytoin Toxicity Causing Sinus Arrest: A Case Report
title_sort oral phenytoin toxicity causing sinus arrest a case report
url http://dx.doi.org/10.1155/2014/851767
work_keys_str_mv AT ravikthimmisetty oralphenytointoxicitycausingsinusarrestacasereport
AT janardhanaraogorthi oralphenytointoxicitycausingsinusarrestacasereport
AT mahmoudabuhazeem oralphenytointoxicitycausingsinusarrestacasereport