Indexes of End Volumes as Indicators of Severity of Heart Failure

Dinara S. Gazizova, Lidia V. Sazykina, Leonid A. Bockeria

Bakoulev National Medical Research Center for Cardiovascular Surgery, Moscow, Russia

Date, time and location: 2018.05.26 17:00, Exhibition area, 1st Floor. Zone – A

Abstract

The modern practice and last guidelines for the diagnosis and treatment of acute and chronic heart failure (HF) pay much attention to ejection fraction (EF) of the left ventricle. "The principal changes… relate to: … ii. clear recommendations on the diagnostic criteria for HF with reduced EF (HFrEF), HFmrEF and HF with preserved EF (HFpEF)" (“2016 ESC Guidelines …”). At the same time the difficulties of interpretation HFpEF are emphasized.

Objective. To find the estimation of heart failure severity. Material. The analysis of forty patients with ischemic cardiomyopathy is made. Results are correlated with last (2016 - 2017) publications. Methods. The relative logarithmic coefficients of sensitivity, indexes of specificity were calculated, imitation on mathematical model was carried out. Results. The patients with non-complicated HF had an EF on average of 48% before operation, and 50% - after operation. Average change is 4% in result of operation. End diastolic volume index (IEDV) and end systolic volume index (IESV) respectively were 69 and 36 before operation at the same patients. After operation they were 46 and 23. Changes are 33% and 36% in result of operation. The complicated patients had an EF on average 38% before operation, and 41% after.

Change of EF is 7%. IEDV and IESV of the complicated patients before operation had values respectively 95 and 59. After operation they were 58 and 34. Changes are respectively 38% and 41%. Let's compare the same indicators not before and after operation, but at uncomplicated and complicated patients. EF of the uncomplicated and complicated patients before operation differs respectively for 4% and 18%. IEDV and IESV of the uncomplicated and complicated patients before later operation differ by 37% and 61%. Conclusions. It is expedient to use logarithmic estimates of end volume indexes as a measure of HF.