Analysis Of Risk Factors For Post-operative Bleeding After Intra-cranial Meningiomas Removal

Objective: To evaluate the risk factors of the occurrence of post-operative bleedingafter the intracranial meningiomas removal.Methods:The clinical materials of one hundred and nine patients with intracranialmeningiomas treated by microsurgical surgery between October 2009 and October 2010in wuhan tongji hospital neurosurgery were analyzed retrospectively.Variablesanalyzed included patients' age, sex, tumor site, tumor size, resection extent oftumor,arteriovenous injury, operation time, hypertension, histology of the tumor. Univariateanalysis was performed by the chi-square test, and the theory frequency less than 5 withFisher exact probability method.Logistic regression model analysis was performed forthe screened statistically significant single factors,eliciting risk factors for post-operativebleeding after the intracranial meningiomas removal,and the analysis of the results.Results: The patient's age, arteriovenous injury and hypertension were risk factors forpost-operative bleeding after the intracranial meningiomas removal in Univariateanalysis;Two factors including hypertension and arteriovenous injury were risk factors forpost-operative bleeding after the intracranial meningiomas removal in Logistic regressionanalysis.Conclusion: The study indicated that arteriovenous injury in intraoperative and hypertension were risk factors influencing post-operative bleeding for intracranialmeningiomas; The patient's age for a possible risk factor.