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  • Title: Trigeminal complications arising after surgery of cranial base meningiomas.
    Author: Westerlund U, Linderoth B, Mathiesen T.
    Journal: Neurosurg Rev; 2012 Apr; 35(2):203-9; discussion 209-10. PubMed ID: 22006092.
    Abstract:
    Chronic severe facial pain is a feared sequel of cranial base surgery. This study explores the symptomatology, incidence and impact on the individual of postoperative de novo trigeminal nerve affection as well as the recovery potential. Out of 231 patients operated for cranial base meningiomas at the Karolinska University Hospital during 7 years, 25 complained of de novo trigeminal symptoms at clinical follow-up 3 months after surgery. Six were later lost to follow-up leaving 19 participants in the study, which was conducted using a questionnaire and a structured telephone interview. All patients complained of facial numbness, affecting the V1 branch in 10/19 patients (53%), the V2 branch in 18/19 (95%) and the V3 branch in 9/19 (47%). Surprisingly, only three (16%) suffered from trigeminal pain, which could be adequately managed by pharmacotherapy. However, five patients (26%) demonstrated ocular dysaesthetic problems. Twelve (63%) described their handicap to be mild, while seven (37%) had daily or severe symptoms. Five patients (26%) reported no improvement over time, while nine (47%) showed improvement and four (21%) stated good recovery. Only one patient (5%) claimed complete symptom remission. In the present study, 11% of the patients presented with a de novo postoperative affection of the trigeminal nerve after removal of a cranial base meningioma; 37% of these reported daily/severe symptoms. Only 26% showed good recovery, observed in patients without tumour infiltration of the nerve or intraoperative nerve damage. In spite of frequent complaints of numbness, pain was uncommon (16%) and often manageable by pharmacotherapy, while ocular symptoms turned out to be more frequent and more disabling than expected.
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