Results
58 patients (mean age 45.9 13.50 years, 52.2% female) and 53 control
participants (mean age 41.8 10.3 years, 62.3% male) enrolled in the
study. Table 1 presents the clinical characteristics of the study group.
Comparable baseline characteristics existed amongst the study groups.
Table 2 displays the 2D transthoracic echocardiographic characteristics
of the research group. In the patient group, the left atrial
anterior-posterior dimension was substantially greater (p0.001). The
left ventricular end-systolic diameter (LVESD) and the left ventricular
end-systolic were greater in the patient group (p=0.002, p=0.033,
respectively ), as were the mitral inflow late diastolic velocity (A)
and the E/Em ratio (E; mitral inflow early diastolic tissue velocity;
Em; mitral inflow early diastolic tissue velocity). In the control
group, the mitral inflow early diastolic tissue velocity (Em) was
greater. (p=0.040) Other echocardiographic parameters did not different
significantly between the patient and control groups. Table 3 provides
the longitudinal and circumferential strain values of the study group
for LA. The maximum LA volume (LAVmax), the minimal LA volume (LAVmin),
and the LA maximum volume index were substantially greater in the
patient group (p0.001, p0.001, and p=0.001, respectively). In the
patient group, the longitudinal and circumferential strain values of LA
were considerably lower. (all p values <0,001) LASr, LAScd,
LASct, LASr-c, LASct-c, LASr-c, LAScd-c, LASct-c were shown to be
considerably lower (p=0.004, p=0.002, p=0.007, p< 0.001,
p=0.001, p0.001, p=0.001, p< 0.001, respectively) in
individuals with PVC coming from the right ventricle. The longitudinal
and circumferential strain values of LA were shown to be considerably
lower in individuals with epicardial PVC. (all p values
<0.001) (Table 4)
In the correlation study, negative relationships between QRS duration
and the circumferential and longitudinal strain values of LA were shown
to be statistically significant (all p values< 0.001). (Table
5)
Conversely, substantial positive relationships were found between
coupling interval and the circumferential and longitudinal strain values
of LA (all p values < 0.001). (Table 6)