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  • Title: Surgical management of symptomatic brain stem cavernoma in a developing country: technical difficulties and outcome.
    Author: Farhoud A, Aboul-Enein H.
    Journal: Neurosurg Rev; 2016 Jul; 39(3):467-73. PubMed ID: 27053221.
    Abstract:
    Brain stem cavernomas (BSCs) are angiographically occult vascular malformations in an intricate location. Surgical excision of symptomatic BSCs represents a neurosurgical challenge especially in developing countries. We reviewed the clinical data and surgical outcome of 24 consecutive cases surgically treated for brain stem cavernoma at the Neurosurgery Department, Alexandria University, between 2006 and 2014. All patients were followed up for at least 12 months after surgery and the mean follow-up period was 45 months. All patients suffered from at least two clinically significant hemorrhagic episodes before surgery. There were 10 males and 14 females. The mean age was 34 years (range 12 to 58 years). Fourteen cases had pontine cavernomas, 7 cases had midbrain cavernomas, and in 3 cases, the lesion was found in the medulla oblongata. The most commonly used approach in this series was the midline suboccipital approach with or without telovelar exposure (9 cases). There was a single postoperative mortality in this series due to pneumonia. Fourteen cases (58.3 %) showed initial worsening of their preoperative neurological status, most of which was transient and only three patients had permanent new deficits and one case had a permanent worsening of her preoperatively existing hemiparesis. There was neither immediate nor long-term rebleeding in any of our cases. In spite of the significant associated risks, surgery for BSCs in properly selected patients can have favorable outcomes in most cases. Surgery markedly improves the risk of rebleeding and should be considered in patients with accessible lesions.
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