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Related Experiment Videos

Night terrors and sudden unexplained nocturnal death.

R B Melles1, B Katz

  • 1Department of Ophthalmology, University of California, San Diego School of Medicine, La Jolla 92093.

Medical Hypotheses
|June 1, 1988
PubMed
Summary

Sudden unexplained nocturnal deaths in young Asian males may be linked to night terrors and cardiac anomalies. This research proposes a pathophysiologic mechanism for these tragic events.

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Area of Science:

  • Cardiology
  • Sleep Medicine
  • Forensic Pathology

Background:

  • Sudden unexplained nocturnal deaths (SUND) affect young Asian males, known locally as Pokkuri and Bangungut.
  • Post-mortem findings often reveal cardiac conduction defects in SUND victims.
  • Terminal event reviews suggest a link to night terrors, a sleep disorder.

Purpose of the Study:

  • To investigate the potential pathophysiologic mechanism linking night terrors and cardiac anomalies in sudden unexplained nocturnal deaths.
  • To propose a unified explanation for SUND in young Asian males.

Main Methods:

  • Review of terminal events surrounding reported cases of sudden unexplained nocturnal deaths.
  • Analysis of post-mortem findings, specifically cardiac conduction defects.
  • Correlation of clinical features of night terrors with observed events in SUND victims.

Main Results:

  • Cardiac conduction defects are frequently observed in victims of sudden unexplained nocturnal deaths.
  • Symptoms preceding death are consistent with severe episodes of night terrors.
  • Night terrors involve vocalization, motor activity, non-arousable states, and autonomic discharge.

Conclusions:

  • Sudden unexplained nocturnal deaths may result from a combination of underlying cardiac anomalies and severe night terror episodes.
  • Recognition of both night terrors and cardiac issues provides a plausible mechanism for SUND.
  • Further research is warranted to confirm this pathophysiologic link.

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