Internal Medicine and Medical Investigation Journal

ISSN: 2474-7750

Right Ventricular Systolic Function by 3D Echocardiography in Patients with Inferior Myocardial Infarction vs. without Right Ventricular Infarction; Compared with Normal Subjects

Abstract

Author(s): Hakimeh Sadeghian1*, Fereshteh Soltani2, Masoumeh LotfiTokaldani2, Arash Jalali2, Afsaneh Sadeghian

We aimed to assess the e

ff

ect of right ventricular myocardial segmental

and global function by using conventional two-dimensional echocardiography (2D)

and new available echocardiographic techniques including real-time three-dimen

-

sional echocardiography (3DE).

Materials/Methods

: Fifty patients with

fi

r

st

inferior

wall myocardial infarction (Inf MI) were divided into two groups, including 25 with

RVMI and 25 without RVMI. Twenty

fi

ve age matched individuals were included

as control. Right ventricular ejection fraction (RVEF) with 3DE, Tricuspid Annular

Plane sy

st

olic excursion (TAPSE), RV fractional shortening area (FSA),

st

rain (S),

st

rain rate (SR) and sy

st

olic tissue velocity (S’) of basal and mid segments of RV

free wall were measured.

Results

: By 3DE, RVEF was signi

fi

cantly lower in patients

with RVMI than those without RVMI and controls (47±6 % vs. 55±5 % and 58±6 %,

respectively, P<0.001). There was also remarkably larger RV end sy

st

olic volume

(RVESV) (44±8 ml vs. 31±6 ml, and 30±7 ml, respectively, P<0.001) and end dia

-

st

olic volume (RVEDV) (87±8 ml vs. 69±9 ml, and 69±8 ml, respectively, P<0.001)

for RVMI group. In the entire population RVEDV and RVESV by 3DE were cor

-

related positively and signi

fi

cantly with the measurements by 2D (r= 0.80, p<0.001;

r=0.84, p<0.001, respectively). There was positive signi

fi

cant correlation between

3DE RVEF and FSA (r=0.78, p<0.001), TAPSE (r=0.81, p<0.001), S, SR and S’ of

basal (r=0.70, p<0.001; r=0.75, p<0.001; r=0.68, p<0.001, respectively) segment of

RV free wall.

Conclusion

: RVEF by 3DE was signi

fi

cantly lower in patients with

RVMI than those without RVMI and well-correlated with RV FSA, TAPSE, S, SR

and S’ of basal segment of RV free wall

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