Intraoperative Changes of Brainstem Auditory Evoked Potentials during the Trigeminocardiac Reflex in Cerebellopontine Angle Surgery

Skull Base ◽  
2007 ◽  
Vol 17 (S 1) ◽  
Author(s):  
Alireza Gharabaghi ◽  
Marcus Andre Acioly ◽  
Carlos Henrique Carvalho ◽  
Andrei Koerbel ◽  
Hubert Löwenheim ◽  
...  
Neurosurgery ◽  
2001 ◽  
Vol 48 (5) ◽  
pp. 1157-1161 ◽  
Author(s):  
Christian Strauss ◽  
Mandana Neu ◽  
Barbara Bischoff ◽  
Johann Romstöck

Abstract IMPORTANCE Preservation of venous drainage during surgery of the cerebellopontine angle has received little attention. CLINICAL PRESENTATION We describe changes in brainstem auditory evoked potentials after temporary obstruction of the superior petrosal vein during surgical resection of a small meningioma at the petrous apex via a standard suboccipital-lateral approach. Temporary clipping of the petrosal vein resulted in deterioration of the brainstem auditory evoked potentials. The tumor was removed with preservation of the superior petrosal vein. CONCLUSION A transient postoperative cochlear nerve deficit emphasizes the importance of venous drainage and its preservation during surgery for small lesions of the cerebellopontine angle that do not distort normal anatomic structures.


1983 ◽  
Vol 92 (6) ◽  
pp. 645-650 ◽  
Author(s):  
Margareta B. Møller ◽  
Aage R. Møller

Changes in the brainstem auditory evoked potentials of 27 patients with cerebellopontine angle tumors were analyzed. It was found that the most characteristic change was an increase in the latency of wave III on the affected side. In patients with tumors large enough to cause displacement of the brainstem, there was in addition an increase in the latency of wave III on the unaffected side. These results are consistent with recent observations regarding the neural generators of the brainstem auditory evoked potentials in humans.


1981 ◽  
Vol 233 (2) ◽  
pp. 189-199 ◽  
Author(s):  
J. -M. Guerit ◽  
P. Mahieu ◽  
S. Houben-Giurgea ◽  
S. Herbay

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