Correlation of carbon dioxide and systolic velocity of the middle cerebral artery in patients with spontaneous subarachnoid hemorrhage of aneurysmal origin

Aneurysmal Subarachnid Hemorhage (aSAH) secondary to an aneurysm is the most common presentation of nontraumatic SAH. Worldwide, the incidence varies, affecting more frequently women with an average age of 55 years. One of its main complications is cerebral vasospasm. The objective of this study was to evaluate the correlation between blood flow of the middle cerebral artery and arterial CO2 levels in patients with aSAH, comparing those who presented vasospasm in relation to those who did not. Observational, historical cohort study, including patients between 18 and 85 years old, diagnosed with Aneurysmal Subarachnoid Hemorrhage (aSAH) secondary to an aneurysm (aSAH) Spearman/Pearson correlation coefficient was used to determine the correlation between mean velocity flow (MVF) by transcranial doppler and levels CO2 serum according to the analysis group (with or without vasospasm). A value