IRCT2013010411996N1 IRCT 2013-01-26 Medical Univercity of Isfahan Analysis Injection of Papaverine in the Brain Vessels for to prevent some camplication of Brain bleeding Analysis and Comparison of the Variations of Blood Flow velocity in Doppler Ultrasound of Brain Vessels before and after the Intra arterial Injection of Papaverine during the Operation of Patients Suffering from Brain Aneurysm in Al-Zahra Hospital, Isfahan, Iran during 2011-2012 2011-04-09 anticipated 20 Complete https://irct.ir/trial/12162 interventional Randomization: N/A, Blinding: Not blinded, Placebo: Not used, Assignment: Single, Purpose: Prevention. 1 Vasospasm of cerebral vessels. The procedure was as follows: the qualified patients were examined under the Microvascular Doppler Ultrasound (MDS) during the operation and before the Papaverine injection; and the blood flow velocity in cerebral arteries of these patients were measured, then 200mg Papaverine, by Insulin Syringe through the main arterials of brain proximal to Aneurysm, is injected intra arterially. Thirty minutes after the injection of medicine, the patients were examined by Doppler Ultrasound (MDS) again and of the arterial blood flowvelocity was measured. Information of the patients were recorded in a checklist that included personal and case features of the patient, age, sex and the blood flowvelocity, before and after Papaverine injection. At the end, the data were analyzed by SPSS software version 20 using chi-square, two independent sample T test and paired sample T test..