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עמוד בית
Mon, 15.07.24

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April 2001
Ausim Azizi, MD, PhD, Perry Black, MD, Curtis Miyamoto, MD and Sidney E. Croul, MD

Background: The impact of repeated surgical resection on the survivorship of patients with malignant astrocytomas is an issue of some controversy in the medical literature.

Objectives: To clarify this issue through a retrospective analysis of treatment outcomes in a brain tumor clinic.

Methods: The patient records from the Brain Tumor Clinic at Hahnemann University Hospital for the period 1988 to 2000 were reviewed. From these, 112 cases of glioblastoma multiforme and 50 cases of anaplastic astrocytoma were chosen for analysis.

Results: The group of patients with glioblastomas showed a median survival of 415 days. When analyzed as subgroups based on the number of surgical resections, the median survival was 393 days in the group with biopsy only, 380 days in the group with one surgical resection, and 548 days in the group with two or three resections. Using the Kaplan-Meier method to generate survival plots and the log rank test to compare groups, repeat debulking was found to be a significant predictor of survival (P= 0.1 73). The group of patients with anaplastic astrocytomas showed a median survival of 1,311 days. When analyzed by subgroups, the patients with biopsy only had a median survival of 544 days, those with one debulking 1,589 days and those with two or three debulkings 1,421 days. There was a trend toward increased survival with debulking and the log rank test again showed statistical significance (P 0.1998).

Conclusions: This study indicates that repeated surgical resections offer increased survival for both glioblastomas and anaplastic astrocytomas.

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