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August 28, 2018; 91 (9) Article

Early outcomes in youth with psychogenic nonsyncopal collapse

Geoffrey L. Heyer, Lisa M. Pabst, Brady N. Kaucic, Tionna A. Coley
First published July 25, 2018, DOI: https://doi.org/10.1212/WNL.0000000000006098
Geoffrey L. Heyer
From the Division of Pediatric Neurology (G.L.H., L.M.P.), Nationwide Children's Hospital; and Departments of Pediatrics (G.L.H., L.M.P., T.A.C.) and Neuroscience (B.N.K.), The Ohio State University, Columbus.
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Lisa M. Pabst
From the Division of Pediatric Neurology (G.L.H., L.M.P.), Nationwide Children's Hospital; and Departments of Pediatrics (G.L.H., L.M.P., T.A.C.) and Neuroscience (B.N.K.), The Ohio State University, Columbus.
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Brady N. Kaucic
From the Division of Pediatric Neurology (G.L.H., L.M.P.), Nationwide Children's Hospital; and Departments of Pediatrics (G.L.H., L.M.P., T.A.C.) and Neuroscience (B.N.K.), The Ohio State University, Columbus.
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Tionna A. Coley
From the Division of Pediatric Neurology (G.L.H., L.M.P.), Nationwide Children's Hospital; and Departments of Pediatrics (G.L.H., L.M.P., T.A.C.) and Neuroscience (B.N.K.), The Ohio State University, Columbus.
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Early outcomes in youth with psychogenic nonsyncopal collapse
Geoffrey L. Heyer, Lisa M. Pabst, Brady N. Kaucic, Tionna A. Coley
Neurology Aug 2018, 91 (9) e850-e858; DOI: 10.1212/WNL.0000000000006098

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Abstract

Objective To evaluate several early outcome measures following diagnosis of psychogenic nonsyncopal collapse (PNSC).

Methods Over a 34-month period, a prospective cohort study was conducted of patients referred for tilt-table evaluation of fainting and orthostatic intolerance. Clinical histories were obtained and anxiety and depressive symptom questionnaires were completed prior to testing. Among 539 patients referred, 100 (18.6%) were diagnosed with PNSC. Outcome data were collected by telephone or during routine follow-up a median of 572 days postdiagnosis.

Results Eighty-four patients (84%) provided outcome data. Following communication of the diagnosis, 32 patients (38%) had immediate PNSC resolution. Attack resolution occurred in 44% by 1 month, 51% by 6 months, 52% by 12 months, 69% after 12 months, and 31% continued to have PNSC at the time of follow-up. Patients with continued PNSC had higher anxiety scores than patients with immediate resolution (p = 0.047). Following diagnosis, emergency department visits for fainting decreased from 78.6% to 20.2% (p = 0.017), and management by psychology or psychiatry increased from 26.2% to 76.2% (p < 0.001). During the follow-up period, 8 patients (9.5%) were hospitalized for suicidal ideation, a median of 253 (range 33–470) days postdiagnosis; 12 patients (14.3%) developed new (non-PNSC) conversion disorders, a median of 86 (range 9–504) days postdiagnosis. Suicidal ideation was associated with higher anxiety (p = 0.007) but not higher depression scores.

Conclusions The diagnostic rate of PNSC parallels that of PNES among patients referred for tertiary care evaluations. The improvements in attack frequency following PNSC diagnosis must be tempered by the potential risks of self-harm and the development of new conversion disorders.

Glossary

DSM-5=
Diagnostic and Statistical Manual of Mental Disorders, 5th edition;
ED=
emergency department;
PNES=
psychogenic nonepileptic seizures;
PNSC=
psychogenic nonsyncopal collapse

Footnotes

  • Go to Neurology.org/N for full disclosures. Funding information and disclosures deemed relevant by the authors, if any, are provided at the end of the article.

  • Received January 23, 2018.
  • Accepted in final form May 25, 2018.
  • © 2018 American Academy of Neurology
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