Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Oculocephalic sympathetic dysfunction in posttraumatic headaches

R K Khurana1

  • 1Division of Neurology, Union Memorial Hospital, Baltimore, MD 21218, USA.

Headache
|November 1, 1995
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Caregiver burden in Shy-Drager syndrome.

The Journal of nervous and mental disease·2000
Same author

Occurrence of depressive symptoms in Shy-Drager syndrome.

Clinical autonomic research : official journal of the Clinical Autonomic Research Society·1999
Same author

Autonomic dysfunction in chronic intestinal pseudo-obstruction.

Clinical autonomic research : official journal of the Clinical Autonomic Research Society·1998
Same author

Painful trigeminal neuropathy: clinical and pharmacological observations.

Headache·1997
Same author

A novel psychophysiological treatment for vasovagal syncope.

Clinical autonomic research : official journal of the Clinical Autonomic Research Society·1997
Same author

Head-up tilt table test: how far and how long?

Clinical autonomic research : official journal of the Clinical Autonomic Research Society·1996

Posttraumatic headaches can stem from cervical sympathetic nerve injury, particularly after whiplash. The thermoregulatory sweat test reliably identifies long-term oculocephalic sympathetic dysfunction.

Area of Science:

  • Neurology
  • Ophthalmology
  • Pain Medicine

Background:

  • Posttraumatic headaches are common after head and neck injuries.
  • Oculocephalic sympathetic functions are crucial for regulating cranial autonomic responses.
  • Assessing sympathetic dysfunction is key to understanding headache mechanisms.

Observation:

  • Five patients with posttraumatic headaches underwent assessment of oculocephalic sympathetic functions.
  • Tests included the thermoregulatory sweat test and biochemical pupillary responses.
  • Four patients showed bilateral sympathetic dysfunction after whiplash; one had unilateral dysfunction after forehead injury.

Findings:

  • Biochemical pupillary responses were diagnostic early post-injury.
  • The thermoregulatory sweat test remained abnormal up to 56 months post-injury.

Related Experiment Videos

  • The study documented cervical sympathetic nerve injury and identified long-term oculocephalic sympathetic dysfunction.

    • Implications:

    • The thermoregulatory sweat test is reliable for detecting long-term sympathetic dysfunction.
    • Dissociated postganglionic cranial sympathetic dysfunction was observed.
    • While not a direct cause, sympathetic dysfunction may influence cephalic pain via the trigeminovascular system.