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