Auditory Brain Stem Responses in the Prognosis of Late Postconcussional Symptoms and Neuropsychological Dysfunction after Minor Head Injury

Neurosurgery ◽  
1986 ◽  
Vol 19 (4) ◽  
pp. 532-534 ◽  
Author(s):  
Rudolf Schoenhuber ◽  
Massimo Gentilini
Keyword(s):  
Head Injury ◽  
Brain Stem ◽  
Neuropsychological Tests ◽  
Statistical Difference ◽  
Minor Head Injury ◽  
Mental Function ◽  
Postconcussion Syndrome ◽  
Neuropsychological Dysfunction ◽  
Auditory Brain Stem Responses ◽  
Auditory Brain Stem

Abstract Thirty patients suffering from minor head injury were examined with auditory brain stem responses (ABR), neuropsy-chological tests for assessment of higher nervous functions, and a questionnaire on postconcussional symptoms. Comparison of the 6 patients with altered ABR with the other 24 showed no statistical difference in either the number of long-lasting postconcussional symptoms or the scores on neuropsychological tests. Subclinical brain stem involvement as shown by ABR does not seem to correlate with impaired mental function or symptoms of the postconcussion syndrome. This greatly limits the use of ABR in forensic medicine.

Prognostic value of auditory brain-stem responses for late postconcussion symptoms following minor head injury

1988 ◽  
Vol 68 (5) ◽  
pp. 742-744 ◽  
Author(s):  
Rudolf Schoenhuber ◽  
Massimo Gentilini ◽  
Adelina Orlando
Keyword(s):  
Head Injury ◽  
Brain Stem ◽  
Prognostic Value ◽  
Memory Loss ◽  
Minor Head Injury ◽  
Postconcussion Syndrome ◽  
Content Type ◽  
Auditory Evoked Responses ◽  
Small Series ◽  
Fine Print

✓ Minor head injury is frequently followed by a subjective postconcussion syndrome. Brain-stem auditory evoked responses (BAER's) were found to be pathological in different small series of patients with a postconcussion syndrome who were examined months after sustaining a slight cranial or cervical trauma; abnormal BAER's have also been reported in larger groups of patients examined early after minor head injury. A relationship between these findings and late subjective symptoms has never been demonstrated. The results of a prospective study into the value of BAER's in the prognosis of a postconcussion syndrome after minor head injury are presented. In 103 patients with minor head injury, BAER's were recorded within 48 hours of the trauma. One year later, the patients were examined for headache, dizziness, depression, anxiety, subjective loss of memory and concentration, and irritability. Eighty percent claimed at least one symptom, most often irritability (54%), memory loss (47%), or depression (39%). Pathological BAER's were found with the same prevalence in patients with and without a postconcussion syndrome. This study confirms the disturbance of brain-stem function in some head-injured patients. However, the lack of correlation with a postconcussion syndrome limits the prognostic value of BAER recordings for postconcussion syndrome. The data suggest that BAER's not be used for medicolegal evaluation of patients with a postconcussion syndrome.

scholarly journals Auditory Brain-Stem Responses in Head Injury and Significance of the Vth Wave

1983 ◽  
Vol 23 (8) ◽  
pp. 638-643 ◽  
Author(s):  
Kazuyuki NISHIDE ◽  
Daikai SADAMITSU ◽  
Toshihisa SAKAMOTO ◽  
Yusuke SAWADA ◽  
Kentaro KOSHINO ◽  
...  
Keyword(s):  
Head Injury ◽  
Brain Stem ◽  
Auditory Brain Stem Responses ◽  
Auditory Brain Stem

Auditory brain-stem responses (ABRs) in sleep respiratory disorders

1994 ◽  
Vol 24 (3) ◽  
pp. 156-160 ◽  
Author(s):  
J. PAQUEREAU ◽  
J. C. MEURICE ◽  
J. P. NEAU ◽  
P. INGRAND ◽  
F. PATTE
Keyword(s):  
Brain Stem ◽  
Respiratory Disorders ◽  
Auditory Brain Stem Responses ◽  
Auditory Brain Stem

Auditory brain stem responses (ABR) in developmentally retarded infants and children

1986 ◽  
Vol 8 (3) ◽  
pp. 246-256 ◽  
Author(s):  
Yasuhiro Mochizuki ◽  
Hideo Ohkubo ◽  
Akira Yoshida ◽  
Takako Tatara
Keyword(s):  
Brain Stem ◽  
Infants And Children ◽  
Auditory Brain Stem Responses ◽  
Auditory Brain Stem

Somatosensory and Auditory Brain Stem Conduction after Head Injury: A Comparison with Clinical Features in Prediction of Outcome

Neurosurgery ◽  
1990 ◽  
Vol 26 (2) ◽  
pp. 278-285 ◽  
Author(s):  
Kenneth Lindsay ◽  
Aydin Pasaoglu ◽  
David Hirst ◽  
Gwen Allardyce ◽  
Ian Kennedy ◽  
...  
Keyword(s):  
Head Injury ◽  
Brain Stem ◽  
Evoked Potential ◽  
Predictive Accuracy ◽  
Normal Subjects ◽  
Prediction Of Outcome ◽  
Prognostic Information ◽  
Additional Information ◽  
Auditory Brain Stem ◽  
The Difference

Abstract Evoked potential conduction times in brain stem auditory (BCT) and central somatosensory pathways (CCT) were recorded from 23 normal subjects and 101 patients with severe head injury. Abnormalities in the CCT and the BCT findings correlated with the clinical indices of brain damage (coma score, motor response, pupil response, and spontaneous and reflex eye movements) in the head-injured patients and each correlated with outcome at 6 months from the injury. The CCT in the “best” hemisphere produced the strongest correlation with outcome (P<0.001). The correlation of the CCT with outcome was stronger in the 47 patients examined 2 to 3 days after the injury (P<0.001) compared to the 34 patients examined within 24 hours after the injury (P<0.02). No such difference was noted for the BCT. Serial studies within the first 2 weeks of injury did not show a consistent pattern and repetition of the investigation over this period did not provide any additional information. We used an INDEP-SELECT discriminant analysis program to determine whether information from the evoked potential data could improve prediction of outcome based on clinical data alone. With the addition of the CCT, the predictive accuracy (expressed as the correct classification probability) increased only slightly from 77 to 80%, and the difference was not significant. We conclude that central somatosensory and auditory brain stem conduction times provide useful prognostic information in paralyzed or sedated patients, but when neurological examination is feasible the benefits of evoked potential analysis do not justify the effort involved in data collection.

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