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עמוד בית
Wed, 24.07.24

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October 2011
H. Gilat, Z. Rappaport and E. Yaniv

Background: Endoscopic techniques have gained popularity in the repair of anterior skull base defects.

Objective: To describe the 10 year experience with endoscopic surgical repair of cerebrospinal fluid (CSF) rhinorrhea in a tertiary medical center.

Methods: The files of all patients who underwent endoscopic transnasal CSF leak repair in our institution between 1996 and 2006 were reviewed.

Results: Twenty-four patients were identified: 16 women and 7 men with a mean age of 48 years and one child aged 9.5 years. The leak was trauma-induced in 17 patients and occurred spontaneously in the other 7. The defect was localized by preoperative computed tomography or CT/cysternography in 86% of cases. A fascia lata graft was the dominant choice for defect closure, and it was combined with a conchal or septal flap, fat, periosteum, or fibrin glue in 15 patients. The success rate was 83% after the first closure attempt, 91% after the second. Two patients required a craniotomy at the third attempt. Mean hospitalization time was 6.7 days. There were two minor complications. Two patients were lost to follow-up; none of the others had a recurrence during 2 years of follow-up.

Conclusions: The endoscopic transnasal technique for the repair of CSF rhinorrhea is associated with a high success rate and low morbidity, and it should be considered for the majority of cases. Repeated attempts may improve success.
 

March 2011
G. Rubin, Z. Herscovici, Y. Laviv, S. Jackson and Z.H. Rappaport

Background: Meningiomas are frequently detected incidentally. Their natural history has not yet been established because it is difficult to predict the growth pattern. Therefore, the management, after the radiological diagnosis, is still controversial.

Objectives: To evaluate the clinical outcome and growth rate of conservatively treated meningiomas at our tertiary center, identify prognostic factors of tumor growth, and suggest guidelines based on the available data and our experience.

Methods: We reviewed the clinical records of 56 patients with 63 untreated meningiomas. Most were diagnosed incidentally. Clinical features and imaging findings at diagnosis and during follow-up were compared between growing and non-growing tumors. Potential patient- and tumor-related predictive factors for growth were analyzed.

Results: The study group included 46 women (52 meningiomas) and 10 men (11 meningiomas) aged 39–83 years. Mean tumor size was 18 ± 11 mm (range 3–70 mm) at diagnosis and 22 ± 11 mm (range 8–70 mm) at last follow-up; mean follow-up time was 65 ± 34 months (range 15–152 months). During follow-up 24 tumors (38%) grew at a rate of 4 mm per year; none became symptomatic. Only two prognostic factors were statistically significantly associated with low growth rate: older age and tumor calcifications.

Conclusions: Given our finding of a low growth incidence of meningiomas in the elderly, we support conservative management in patients aged 70 years or older. Calcifications into the meningioma are also indicative of slow growth, suggesting a conservative strategy. Surgery is recommended in younger patients in whom tumor growth occurs more often and a longer follow-up is necessary.
 

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