PMC10365907_01
Preoperative CT and CTA showed the stenosis of the superior vena cava and left atrial appendage aneurysm. Intraoperative and postoperative CT showed the reconstruction of the superior vena cava with artificial blood vessels. (A,B) Showed severe stenosis at the junction of superior vena cava and right atrium (arrowhead). (C,D) Showed that the enhancement of the left atrial appendage was consistent with that of the ascending aortic cavity, and the arrowhead referred to the enlarged left atrial appendage (arrowhead). (E) Showed the details of the operation; the left arrow showed the site of anastomosis between the artificial vessel and the right atrium; the first arrow on the right showed the site of ligation and suture at the root of the left atrial appendage; and the second arrow on the right showed the site of the temporary pacemaker. (F) Showed that the blood flow between the artificial vessel and the right atrium was unobstructed, which relieved the stenosis of the superior vena cava.
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F1
Upon admission to our hospital, computed tomography (CT) angiography (CTA) revealed SVC stenosis (Figures 1A,B). Contrast-enhanced CT revealed an enlarged left atrial appendage (Figures 1C,D). SVC regained vascular patency (Figure 1F), and the electrocardiogram showed a recovered sinus rhythm (Figure 3). Subsequently, the patient was discharged and prescribed aspirin for 3 months.
Electrocardiography showed paroxysmal supraventricular tachycardia.
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F2
Electrocardiogram findings indicated paroxysmal supraventricular tachycardia (Figure 2).
Preoperative ECG shows that the heart rhythm was paroxysmal supraventricular tachycardia.
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F3
SVC regained vascular patency (Figure 1F), and the electrocardiogram showed a recovered sinus rhythm (Figure 3). Subsequently, the patient was discharged and prescribed aspirin for 3 months.