J Korean Soc Clin Toxicol.  2010 Dec;8(2):97-105.

Cardiac Toxicity in Patients with Antidepressant Intoxication

Affiliations
  • 1Department of Emergency Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea. ckyoungho@yahoo.co.kr

Abstract

PURPOSE
Although cardiac toxicity is a key parameter of significant toxicity, in antidepressant intoxication, there are few studies on the cardiac toxicity of serotonin reuptake inhibitor and the intoxication with the new generation of antidepressants. The aim of this study is to investigate the relative cardiac toxicity of serotonin reuptake inhibitor and intoxication with the new generation of antidepressants as compared with that of tricyclic antidepressant intoxication.
METHODS
We retrospectively reviewed the medical records of 109 antidepressant intoxicated patients who visited the Emergency Department from January, 2005 to December, 2009 to collect and analyze the demographic and clinical data. Sixteen patients were excluded. The enrolled seventy eight patients were classified into three groups: the tricyclic antidepressant group (TCA) (n=32), the selective serotonin reuptake inhibitor subgroup (SSRI) (n=28) and the new generation antidepressant subgroup (NGA) (n=18).
RESULTS
The demographic and clinical data of the SSRI and NGA groups were not significantly different from that of the TCA group. The QRS duration of the SSRI subgroup (86.4+/-12.0 msec) and the NGA subgroup (91.8+/-11.9 msec) was not significantly different from that of the TCA group (90.0+/-13.5msec) (p=0.598).
CONCLUSION
Intoxication with SSRI and the new generation antidepressants seemed to show significant cardiac toxicity, like what is seen in tricyclic antidepressant intoxication. Clinicians must pay attention to SSRI and new generation antidepressant intoxication.

Keyword

Antidepressant; Intoxication; Cardiac toxicity

MeSH Terms

Antidepressive Agents
Emergencies
Humans
Medical Records
Retrospective Studies
Serotonin
Antidepressive Agents
Serotonin
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