Nucl Med Mol Imaging.  2014 Jun;48(2):157-160.

A Case of Habitual Neck Compression Induced Electroencephalogram Abnormalities: Differentiating from Epileptic Seizures Using a Tc-99m HMPAO SPECT

• Choi H
• Seo MS
• Lee HY
• Kim YS
• Yun CH
• Kim SE
• Park SH

Abstract

Self-induced hypoxia has been reported particularly in adolescents, and it can result in neurological injury. Here, we present a case of electroencephalogram (EEG) abnormalities induced by habitual neck compression differentiated from epileptic seizures by Tc-99m HMPAO SPECT. A 19-year-old male was admitted for evaluation of recurrent generalized tonic-clonic seizures. No interictal EEG abnormality was detected; however, abnormal slow delta waves were found immediately after habitual right neck compression. To differentiate EEG abnormalities due to a hemodynamic deficit induced by habitual neck compression from an epileptic seizure, Tc-99m HMPAO SPECT was performed immediately after right carotid artery compression. Abnormal delta waves were triggered, and cerebral hypoperfusion in the right internal carotid artery territory was detected on Tc-99m HMPAO SPECT. The slow delta wave detected on the EEG resulted from the cerebral hypoperfusion because of the habitual neck compression.

Keyword

Habitual neck compression; Tc-99mHMPAO SPECT; Electroencephalogrm; Seizure

MeSH Terms

Adolescent
Anoxia
Carotid Arteries
Carotid Artery, Internal
Electroencephalography*
Epilepsy*
Hemodynamics
Humans
Male
Neck*
Seizures
Technetium Tc 99m Exametazime*
Tomography, Emission-Computed, Single-Photon*
Young Adult
Technetium Tc 99m Exametazime