A Prospective Study On The Application Of Continuous CT Scan On The Patients Whom Conservative Tre Atment Was Performed For The Management Of Acute Traumatic Subdural Hematoma

Objectives:Patients who have conservative treatment for the acute traumatic subdural hematoma should be under strict monitoring, moreover the continuous CT scan plays an important role on the guardianship. This study is planned to analyze the risk factor and dangerous time window of the aggravation of the patient's condition (augment of the hematoma/augment of cerebral contusion and laceration) through a prospective clincal study.Methods:This study analyzed the patients who had conservative treatment for the acute traumatic subdural hematoma. Among these patients, during the first three days, the CT scan was performed every 8 to 12 hours; during the forth day and fifth day, the CT scan was performed every 12 to 24 hours; and if the patients condition aggravated, the CT scan would be performed as soon as possible. The patients'epidemical data, clinical condition, the results of CT scan as well as the outcome were record for the analysis.Results:At last, totally eighty patients were involved in this study. Forty paitents experienced aggravation of the clinical condition, and there were fifty patients who had surgical management for the disease at last. The patients'age, gender, and the location of hematoma have no effect on the aggravation, but in this series the cranial fracture and cerebral contusion and laceration are the risk factors for the aggravation. In addition, the dangerous time window for the aggravation is the time within 24 hours after trauma.Conclusion:According to the results, it is suggested that the CT scan should be repeated within at least 24 hours after trauma. For the patients who has cranial fracture and cerebral contusion and laceration simultaneously, the increased frequency of CT scan may discover the clincal changes ahead of time.