The Significance of Transcranial Doppler in Aortic Arch Surgery

Abstract

Background: Despite advancements in surgical techniques, aortic arch surgery poses a significant risk of neurological complications. This study evaluates transcranial Doppler (TCD) for real-time monitoring of cerebral blood flow during surgery, aiming to optimize perfusion and mitigate these complications. Objectives: This study aims to evaluate the role of transcranial Doppler (TCD) in monitoring and optimizing cerebral perfusion during aortic arch surgery and to determine whether TCD contributes to improved postoperative neurological outcomes. Methods: This retrospective observational study included 40 patients undergoing aortic arch surgery, divided into a control group without TCD monitoring and a TCD monitoring group. Data collection involved TCD via the transtemporal approach to measuring cerebral blood flow velocity (CBFV) and the Lindegaard index. Statistical analysis compared outcomes between groups, using appropriate methods to evaluate differences in postoperative neurological outcomes, hospital stay duration, and mortality rates. Results: The study demonstrated several key findings: the TCD group had a lower incidence of postoperative neurological dysfunction (PND) and experienced no cases of intraoperative cerebral vasospasm. Patients in the TCD group also had reduced hospital and ICU stays. Cerebral blood flow velocity (CBFV) remained stable during critical surgical phases in the TCD group, highlighting the effectiveness of TCD in maintaining cerebral perfusion. These results establish a clear relationship between TCD monitoring, improved neurological outcomes, and accelerated recovery. Conclusions: The study presents compelling evidence supporting transcranial Doppler (TCD) as an effective tool for optimizing cerebral perfusion and mitigating complications during aortic arch surgery. It highlights how TCD enables real-time monitoring and management of cerebral blood flow, addressing the critical challenge of neurological complications inherent in this high-risk surgical procedure.