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Correlation between indicators of deformation properties of the right auricle and the right ventricle at patients with arterial hypertension

Session Poster session 5

Speaker Sergey Ivanov

Event : EuroEcho 2017

  • Topic : imaging
  • Sub-topic : Imaging
  • Session type : Poster Session

Authors : S Ivanov (Moscow,RU), V Matveev (Moscow,RU), L Kuznetsova (Moscow,RU), I Dmitrieva (Moscow,RU)

S Ivanov1 , V Matveev1 , L Kuznetsova1 , I Dmitrieva1 , 1I.M. Sechenov First Moscow State Medical University - Moscow - Russian Federation ,

European Heart Journal Supplements ( 2017 ) 18 ( Supplement 3 ), iii352

Purpose: evaluation of correlation between indicators of deformation properties of the right auricle (RA) and the right ventricle (RV) using speckle tracking echocardiography (STE) in patients with arterial hypertension (AH) stage I. 

Methods. The study included 48 patients with AH stage I – 26 men (57%) and 22 women (43%) (middle age – 46±13 years; systolic blood pressure – 147±18 mm Hg, diastolic blood pressure – 92±10 mm Hg. Inclusion criteria were the diagnosis of essential arterial hypertension stage I and the lack of medical treatment. The study was performed with the expert class ultrasound system. Right ventricle function analysis was conducted using Vector Velocity Imaging (VVI) application. Transthoracic echocardiography was performed in the apical 4-chamber position. Strain rate (SR) and velocity (V) were measured in three different cardiac cycle phases (S – RV systole, E – early diastolic filling, A – late diastolic filling), regional RV longitudinal strain (S) and displacement (D) – in the moment of maximal myocardial deformation. In this study, the mean values of parameters were used for the basal and middle segments only (each value was an average between all segments' values). The results are expressed as the arithmetic means ± standard deviations (S±s). The non-parametric Spearman's rank correlation coefficient (r) was utilized, and values for p<0,05 were considered statistically significant.

Results. During the analysis of deformation properties the following results were obtained: SRA=51,39±16,52 %; VSRA=-5,04±1,67 cm/s; VERA=3,57±1,45 cm/s; VARA=3,79±1,66 cm/s; SRSRA=2,06±0,58 s-1; SRERA=-1,42±0,58 s-1; SRARA=-1,56±0,65 s-1; DRA=-10,08±2,48 mm; SRV=-19,23±6,23 %; VSRV=4,21±1,50 cm/s; VERV=-3,42±1,46 cm/s; VARV=-3,26±1,53 cm/s; SRSRV=-1,37±0,53 s-1; SRERV=1,25±0,65 s-1; SRARV=0,93±0,44 s-1; DRV=7,63±3,18 mm. a direct correlation between the following RA and RV parameters was found in the research inverse values were used due to the opposite direction of the tissue movement during the same cardiac cycle phases. (p<0,05): -SRA and SRV (r=0,55); -VSRA and VSRV (r=0,75); -DRA and DRV (r=0,73). Evaluation of several parameters revealed no significant correlations (p>0,05): VE (r=0,46); VARA (r=0,30); SRS (r=0,40); SRE(r=0,38); SRA (r=0,36).

Conclusion. The findings showed a strong statistically significant positive correlation between velocity measured during RV systole (VS) and displacement (D) parameters and a moderate correlation between right auricle's and right ventricle's longitudinal strain parameters. These results indicate the clinical importance of functional coupling between the heart chambers during this cardiac cycle phase in patients with arterial hypertension and allow RV functional parameters to be used to evaluate the function of right heart, especially in cases of poor visualization of RV free wall.

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