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Related Experiment Videos

Symptom reporting during voluntary hyperventilation and mental load: implications for diagnosing hyperventilation

H Hornsveld1, B Garssen, M F Dop

  • 1Department of Medical Psychology, Academic Medical Centre, Amsterdam, The Netherlands.

Journal of Psychosomatic Research
|January 1, 1990
PubMed
Summary

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The hyperventilation provocation test (HVPT) may not reliably diagnose Hyperventilation Syndrome (HVS). Symptom reporting during HVPT is linked to psychological factors, not breathing changes, questioning the test

Area of Science:

  • Psychophysiology
  • Clinical Psychology
  • Respiratory Medicine

Background:

  • Hyperventilation Syndrome (HVS) is associated with various somatic symptoms.
  • The hyperventilation provocation test (HVPT) is a common diagnostic tool for HVS.
  • HVPT validity relies on symptom recognition during induced hyperventilation.

Purpose of the Study:

  • To evaluate the diagnostic validity of the hyperventilation provocation test (HVPT) for Hyperventilation Syndrome (HVS).
  • To compare symptom reporting during HVPT with symptom reporting during a mental stressor.
  • To investigate the relationship between symptom reporting, psychological measures, and physiological changes (hypocapnia).

Main Methods:

  • Twenty-three patients with suspected HVS underwent a 3-minute HVPT.

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  • Participants also completed the Stroop Color Word Test (CWT) as a mental load task.
  • Symptom recognition, hypocapnia levels, and psychological scores (SCL-90, STAI) were recorded.

    • Main Results:

    • Similar percentages of patients reported symptoms during HVPT (61%) and CWT (52%).
    • Symptom reporting was significantly correlated with psychological state and trait measures.
    • Symptom reporting showed no significant relationship with the degree of hypocapnia induced by HVPT.

    Conclusions:

    • The findings challenge the validity of the HVPT as a diagnostic criterion for HVS.
    • Symptom reporting during HVPT appears influenced more by psychological factors than physiological changes.
    • The conceptual basis of Hyperventilation Syndrome may require re-evaluation.