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Can Low Dose Sertraline Cause Serotonin Syndrome in Pediatric Patients? 2 Case Reports

Published online by Cambridge University Press:  10 May 2021

Sultana Jahan*
Affiliation:
University of Missouri, Department of Psychiatry, Columbia, MO, USA
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Abstract

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Background

Serotonin syndrome is a potentially life-threatening condition associated with increased serotonergic activity in the central nervous system. Serotonin syndrome is underreported complication of pharmacotherapy. The Hunter Criteria for serotonin syndrome (SS) are fulfilled if the patient has taken a serotonergic agent and has one of the following symptoms: 1) spontaneous clonus, 2) inducible clonus and agitation or diaphoresis, 3) ocular clonus and agitation or diaphoresis, 4) tremor and hyperreflexia, 5) hypertonia, or 6) temperature above 38 C and ocular clonus or inducible clonus.

Method

Patient A was a 16-year-old Caucasian male with history of major depressive disorder, social anxiety and OCD who presented to the emergency room with multiple complaints: twitching of bilateral cheeks, intermittent tremor of his hands and feet, mental fogginess/confusion, stuttering when attempting to speak, agitation, profuse sweating and headache. 3 weeks prior, his sertraline dose was increased from 25mg daily to 50 mg daily. His physical exam was remarkable for elevated blood pressure and heart rate as well as hyperreflexia noted on patellar reflex testing. No significant abnormalities were noted on routine labs. He was told his symptoms were likely due to medication side effects. The patient was discharged with instructions to decrease his sertraline dose from 50 mg to 25 mg daily and follow up with his outpatient psychiatrist. 2 days later the patient was seen at the outpatient child psychiatry clinic and he was advised to taper off sertraline completely by taking 12.5mg daily for 3 days before cessation. After stopping the medication, the patient’s symptoms resolved.

Patient B was a 16-year-old female with generalized anxiety disorder and major depressive disorder who presented to the general pediatric clinic with progressively worsening hand tremors and body shaking since her Zoloft dose was increased from 25mg to 50mg daily. She also felt it was more difficult to hold objects. At the physical exam she had an elevated heart rate to 93 and elevated blood pressure to 182/75. Her deep tendon reflexes were 4+ bilaterally. Upon consultation with child psychiatry, the patient was recommended to taper off sertraline. After the discontinuation of sertraline, her symptoms resolved.

Result

These 2 patients developed mild to moderate symptoms of serotonin syndrome with low doses of sertraline. Symptoms resolved after the discontinuation of the SSRI.

Discussion

In the pediatric patient population, serotonin syndrome can develop even with lower doses of an SSRI. To avoid a missed diagnosis, clinicians should familiarize themselves with the Hunter Criteria for serotonin syndrome. It is also vital to educate parents and caregivers about the toxicities of SSRIs, including serotonin syndrome, so they may monitor treatment and take appropriate action if needed.

Type
Abstracts
Copyright
© The Author(s), 2021. Published by Cambridge University Press

Footnotes

Presenting Author: Sultana Jahan