Document Detail


Blunted TSH response to TRH and seizure duration in ECT.
MedLine Citation:
PMID:  10066009     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The relationship between the thyrotropin (TSH) response to thyrotropin-releasing hormone (TRH) and the duration of seizures induced by electroconvulsive therapy (ECT) in depressed patients was investigated. In a balanced-order cross-over design, 16 depressed women were given 0.4 mg TRH or placebo intravenously, 20 min before ECT in the first two sessions. In the third ECT session TRH was given just prior to ECT. Thyrotropin (TSH) levels at various sampling times, as well as the duration of seizures, were measured. There was a significant inverse correlation between plasma TSH concentrations 20 min after TRH administration (deltaTSH) and seizure duration. Furthermore, when patients were categorized according to their TSH response to TRH, the group with blunted responses (deltaTSH <6 microIU/ mL, n = 7) had a longer seizure time during ECT than the group with non-blunted responses (deltaTSH > 6 microIU/mL, n = 9). Finally, the seizure duration in the group with blunted TSH responses was reduced significantly when TRH was co-administered, while it remained unchanged in the group with non-blunted TSH responses. It is concluded that a blunted TSH response to TRH might indicate a seizure susceptibility as measured by the duration of seizures induced by ECT. The fact that TRH pre-administration had a reducing effect suggests that this substance might be involved in the pathophysiology of ECT-induced seizures.
Authors:
Y G Papakostas; M Markianos; A Pehlivanidis; I M Zervas; G N Papadimitriou; C Stefanis
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Publication Detail:
Type:  Clinical Trial; Journal Article    
Journal Detail:
Title:  Acta psychiatrica Scandinavica     Volume:  99     ISSN:  0001-690X     ISO Abbreviation:  Acta Psychiatr Scand     Publication Date:  1999 Jan 
Date Detail:
Created Date:  1999-06-02     Completed Date:  1999-06-02     Revised Date:  2005-11-17    
Medline Journal Info:
Nlm Unique ID:  0370364     Medline TA:  Acta Psychiatr Scand     Country:  DENMARK    
Other Details:
Languages:  eng     Pagination:  68-72     Citation Subset:  IM    
Affiliation:
Psychiatry Department and University Mental Health, Research Institute, Athens University, Medical School, Greece.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Bipolar Disorder / diagnosis
Cross-Over Studies
Electroconvulsive Therapy / adverse effects*
Female
Humans
Middle Aged
Psychiatric Status Rating Scales
Seizures / etiology*
Thyrotropin / blood,  metabolism*
Thyrotropin-Releasing Hormone / pharmacology*
Chemical
Reg. No./Substance:
24305-27-9/Thyrotropin-Releasing Hormone; 9002-71-5/Thyrotropin

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