Transcranial doppler in patients with ruptured brain aneurysms in cerebral hemodynamics evaluation and outcomes predicting

The purpose: to develop Doppler criteria in the evaluation of cerebral hemodynamics in predicting the outcome of the disease in patients with cerebral aneurysm rupture. Materials and methods . 172 patients (76 male, 96 female) with cerebral aneurism rupture were participated in the research. All patients were continuously monitored by Doppler studies (a total of 803 studies) in the period from 1 to 20 days after the rupture of the arterial aneurysm. TCD was performed on the apparatus DWL MULTI-DOP T (Germany) with sensors 2 and 4 MHz. All patients were divided into 5 groups depending on the Glasgow outcome Scale (GOS) assessment. Group 1 (n = 87; 50.6%): with an excellent outcome of the disease (GOS 1); group 2 (n = 27; 15.7%): with an good outcome of the disease (GOS 2); group 3 (n = 8; 4.65%): with an acceptable outcome of the disease (GOS 3); group 4 (n = 6; 3.48%): with an acceptable outcome of the disease (GOS 4); group 5 (n = 8; 4.65%): with a lethal outcome of the disease (GOS 5) Systolic blood flow velocity (BFV), Lindegaard index and pulsatility index were estimated Results. Doppler prognostic criterion of disease outcome were developed: early and progressive increase in blood flow velocity (development of spasm on the 1 day delay after hemorrhage); the development of critical spasm (blood flow velocity over 300 cm/s) by 7–8 days after subarachnoid hemorrhage, the rise of the blood flow velocity per day more than 36 cm/s; the duration of the spasm more than 16 days; increase in pulsatility index (more than 1.0) and Lindegaard index (more than 4.8), the presence of diffuse spasm. Conclusion. The transcranial Doppler can be an additional screening non-invasive diagnostic method for cerebral hemodynamic evaluation and for determination complications in ruptured cerebral aneurysm.