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Tilt-induced pseudosyncope.
F Luzza1, P Pugliatti, S di Rosa
1Department of Medicine and Pharmacology, Division of Cardiology, University of Messina, Italy.
International Journal of Clinical Practice
|July 9, 2003
Summary
The head-up tilt test (HUTT) diagnosed neurally mediated syncope in many patients. In rare cases, HUTT identified pseudosyncope, suggesting a psychiatric link in unexplained fainting.
Area of Science:
- Cardiology
- Neurology
- Psychiatry
Background:
- Unexplained syncope presents a diagnostic challenge.
- The head-up tilt test (HUTT) is a key diagnostic tool for syncope.
Observation:
- HUTT identified neurally mediated syncope in 266 of 986 patients.
- A small subset of patients experienced prolonged loss of consciousness during HUTT without hemodynamic changes.
Findings:
- This phenomenon, termed 'pseudosyncope,' was observed in 3 patients (0.3% of total).
- Pseudosyncope during HUTT was linked to psychiatric disorders.
- The test outcome for pseudosyncope was considered a true positive, mirroring clinical events.
Implications:
- HUTT can aid in identifying psychiatric conditions in patients with unexplained syncope.
- Recognizing pseudosyncope is crucial for appropriate patient management.
- This highlights the interplay between neurological and psychiatric factors in fainting disorders.