Middle cerebral artery flow after angioplasty and stenting of symptomatic internal carotid artery stenosis.

Background And Purpose: Improved haemodynamics in the middle cerebral arteries (MCAs) after carotid artery endaterectomy (CEA) has been demonstrated in a number of studies, whereas similar analyses on carotid angioplasty and stenting (CAS) remain insignificant. The purpose of the study was to test whether CAS affects haemodynamic parameters of MCA ipsilaterally and contralaterally to the side of the procedure in patients with symptomatic internal carotid artery (ICA) stenosis, assessed by transcranial Doppler (TCD) examination.

Material And Methods: Carotid angioplasty and stenting was performed in 51 patients (39 men and 12 women) aged 45-86 (mean age: men 65.

[Effect of low dobutamine doses dobutamine on left ventricular diastolic flow parameters in subjects with a low ejection fraction].

Unlabelled: A low dobutamine dose (DOB) improves the systolic function of impaired myocardium. There are some data suggesting the improvement of left ventricular (LV) diastolic function as well. The aim of this work was to assess the influence of DOB on some left ventricular diastolic flow parameters: inflow curve profile and early inflow wave propagation velocity (Prop).