[Detection of Determinants of Functional Aortic Regurgitation in Patients With Ascending Aorta Aneurism by Transesophagea1 Echocardioscopy].

We used transesophageal echocardioscopy for the study of effects of linear parameters of the aortic root and characteristics of its subvalvular space (area of subvalvular space of the aortic root during diastole and aortic cusps coaptation height) on severity of aortic regurgitation in patients with aneurism of ascending aorta and anatomically unchanged aortic valve (AV), i.e. so-called functional aortic regurgitation (FAR).

[Detection of Determinants of Functional Aortic Regurgitation in Patients With Ascending Aorta Aneurism by Transesophageal Echocardioscopy].

We used transesophageal echocardioscopy for the study of effects of linear parameters of the aortic root and characteristics of its subvalvular space (area of subvalvular space of the aortic root during diastole and aortic cusps coaptation height) on severity of aortic regurgitation in patients with aneurism of ascending aorta and anatomically unchanged aortic valve (AV), i.e. so-called functional aortic regurgitation (FAR).

[Evaluation of a patient cytochemical status using nonparametric statistical methods].

The paper shows limitations of the traditional indices used to evaluate a patient's chemical status and describes methods for assessment of its uniformity, by using nonparametric chi 2 test, identifying patient subgroups, and comparing a few groups. A new procedure is proposed to present cytochemical findings.

[Absolute and relative errors of individual determination of cytochemical indices in clinical practice].

The study assesses absolute and relative errors in the calculation of cytochemical indices in a precise patient. At present, the semiquantitative index (the mean cytochemical coefficient (MCC) after G. Astaldi and L.