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  • Title: The natural history of conservatively managed symptomatic intramedullary spinal cord cavernomas.
    Author: Kharkar S, Shuck J, Conway J, Rigamonti D.
    Journal: Neurosurgery; 2007 May; 60(5):865-72; discussion 865-72. PubMed ID: 17460522.
    Abstract:
    OBJECTIVE: The presentation and natural history of untreated, symptomatic intramedullary spinal cavernomas at our institution were analyzed. The objective is to provide additional information regarding the natural history of conservatively managed, symptomatic, intramedullary spinal cord cavernous malformations. METHODS: The medical records of patients treated in our institution between 1989 and 2002 were reviewed to identify those with intramedullary cavernomas. The medical, radiological, surgical, and pathological records from these patients were retrospectively reviewed and analyzed. RESULTS: Fourteen patients were included in the study. The mean age at presentation was 42 years. Four lesions (29%) were located in the cervical region and 10 lesions (71%) were present in the thoracolumbar spinal cord. All patients were symptomatic at the time of presentation. In this cohort of 14 patients, 10 patients (71%) were conservatively managed. For these patients, the mean duration of symptoms before presentation was 10 months. The mean duration of follow-up from the time of presentation was 80 months. The median McCormick grade for conservatively treated patients at presentation was II. During this period, none of the conservatively managed patients had an acute intramedullary bleed. In nine patients, the McCormick grade at the last follow-up evaluation was the same as or better than their score at presentation. Four patients (29%) were treated surgically. The mean duration of symptoms before presentation was 33 months. The mean duration of follow-up from the time of presentation was 42 months. In two surgical patients, the McCormick grade at the last follow-up evaluation remained unchanged compared with their score at presentation, whereas the McCormick grade improved in one patient and deteriorated in another patient. CONCLUSION: This cohort of conservatively managed patients with symptomatic, intramedullary spinal cord cavernomas was clinically stable throughout the follow-up period. In this series, patients harboring symptomatic spinal cord cavernous malformation did not have significant, permanent neurological decline during the follow-up period when treated with the conservative approach of observation. This data provides additional information for determining the appropriate treatment strategy for patients with intramedullary spinal cavernomas.
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