PMC9772928_01
(a) Emergency ECG shows sinus rhythm and complete atrioventricular block with a ventricular escape rhythm of 48 bpm. (b) ECG on the first day after the operation shows 1:1 atrioventricular conduction. p valves (black arrows).
10.1177_2050313X221140658-fig1.jpg
PMC9772928_01_10.1177_2050313X221140658-fig1.jpg
fig1-2050313X221140658
The emergency room electrocardiogram (ECG) showed sinus rhythm with ventricular escape rhythm, ventricular escape segment rate of 48 bpm, third-degree atrioventricular block, and complete right bundle branch block (Figure 1(a)). The patient's ECG showed 1:1 atrioventricular conduction on the first day after operation (Figure 1(b)).
Parasternal long-axis view of the left ventricle: (a) the right coronary sinus was dilated and the sinus wall expanded into the left ventricular outflow tract during diastole; (b) the right coronary sinus wall was sunken in systole; (c) the right coronary sinus was dilated and blood flow signals can be seen at the bottom of the ventricular septal base and the right coronary sinus region; (d) parasternal short axis: the diastolic tumor can be seen expanding into the left ventricular outflow tract and close to the anterior mitral leaflet.. RV: right ventricle; LV: left ventricle; RA: right atrium; LA: left atrium, AML: anterior mitral leaflet; MVO: mitral valve orifice; PML: posterior mitral leaflet; IVS: interventricular septum.
10.1177_2050313X221140658-fig2.jpg
PMC9772928_01_10.1177_2050313X221140658-fig2.jpg
fig2-2050313X221140658
The myocardium of the left ventricular apex became thinner and the motion amplitude of the middle left inferior ventricular wall and the apical segment decreased (Figure 2).
CTA view showing: (a) sagittal position of the aortic root reconstruction: bag-like structure bulge on the left side of the right coronary sinus wall, located above the bottom of the ventricular septum of approximately 10 x 9 mm in size (green arrow). (b) Section of the left ventricular outflow tract: the right coronary artery originates from the right coronary sinus (red arrow), expanding and protruding into the left ventricular outflow tract (black arrow).. PT: pulmonary trunk; RCC: the right coronary cusp; LCC: the left coronary cusp.
10.1177_2050313X221140658-fig3.jpg
PMC9772928_01_10.1177_2050313X221140658-fig3.jpg
fig3-2050313X221140658
We also detected the formation of an interventricular septal dissection above the bottom of the interventricular septum, with a range of about 10 x 9 mm (Figure 3).