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Updated: Aug 4, 2026
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Network Analysis of Foramen Ovale Electrode Recordings in Drug-resistant Temporal Lobe Epilepsy Patients
Published on: December 18, 2016
Somatosensory auras in refractory temporal lobe epilepsy
Jay C Erickson1, Lawrence E Clapp, Gwendolyn Ford
1Department of Neurology, Walter Reed Army Medical Center, Washington, D.C., USA. Jay.Erickson@amedd.army.mil
Epilepsia
|January 19, 2006
Summary
Somatosensory auras (SSAs) are more common in temporal lobe epilepsy (TLE) than previously thought, often presenting as tingling. Patients with SSAs experience favorable surgical outcomes, indicating SSAs do not preclude successful temporal lobe resection.
Area of Science:
- Neurology
- Epileptology
- Clinical Neuroscience
Background:
- Refractory temporal lobe epilepsy (TLE) poses significant management challenges.
- Understanding aura characteristics is crucial for localizing seizure origins and predicting treatment response.
Purpose of the Study:
- To investigate the prevalence, clinical features, lateralizing value, and surgical prognostic significance of somatosensory auras (SSAs) in patients with refractory TLE.
Main Methods:
- Screening of 81 consecutive patients undergoing temporal lobectomy for refractory complex-partial seizures for SSAs.
- Detailed assessment of SSA characteristics, co-occurring aura types, seizure semiology, EEG, neuroimaging, neuropathology, and surgical outcomes.
Main Results:
- SSAs were reported by 11% of patients, most commonly as tingling (89%).
- Unilateral SSAs, particularly those involving a limb, correlated with seizure origin in the contralateral temporal lobe (80% of cases).
- All patients with SSAs achieved complete seizure remission 1 year post-surgery, with 78% remaining seizure-free at 2 years.
Conclusions:
- SSAs are more prevalent in refractory TLE than previously recognized and typically manifest as tingling.
- Unilateral SSAs can aid in lateralizing the seizure focus in the temporal lobe.
- Favorable surgical outcomes in TLE patients with SSAs support temporal lobe resection as a viable treatment option.
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