A 44-year-old fit and active female was referred by her general practitioner with palpitations, mostly occurring at rest. Electrocardiography performed in the community demonstrated sudden onset of an atrial tachycardia of 115 beats per min. When assessed in hospital, she was asymptomatic with a blood pressure of 110/62 and a regular pulse rate of 50 beats per min. Resting electrocardiography revealed sinus rhythm with poor R wave progression with no evidence of left ventricular hypertrophy or ischemia. A 24-h electrocardiography demonstrated four beats of atrial tachycardia.\nA transthoracic echocardiogram demonstrated a prominent coronary sinus, moderate mitral regurgitation, and a bicuspid aortic valve []. Transesophageal echocardiography showed normal biventricular systolic function, left atrial dilatation, mild to moderate mitral regurgitation, and tricuspid regurgitation. The aortic valve was bicuspid with trivial aortic regurgitation but no significant stenosis. The ascending aorta was dilated for her age and body surface area, with a maximum diameter of 4.0 cm. There was no evidence of aortic coarctation or dissection.\nSaline contrast echocardiography was performed via the left and right arms [], [], [] and []. This confirmed PLSVC with no obvious shunt. Cardiac magnetic resonance imaging (MRI) demonstrated bicuspid aortic valve with dilated aortic root. A PLSVC was seen draining into the coronary sinus and then the right atrium. A separate right-sided non-hypoplastic superior vena cava also emptied into the right atrium. It was noted that a left-sided IVC drained into the coronary sinus and right atrium. Three hepatic veins were seen emptying into a short right-sided IVC, again draining into the right atrium.
A 52-year-old male patient underwent surgical correction of interrupted CoA at the age of 20 years using EABG from the LSCA to the descending aorta. He presented with transient sudden central chest pain with sweating. He is a known smoker for more than 30 years and hypertensive for almost 10 years, on losartan 100 mg once daily. The blood pressure (BP) was 140/90 mmHg, equal in four limbs with no brachiofemoral delay. There was no ischemic electrocardiography (ECG) changes or rise in cardiac biomarkers. His transthoracic echocardiography (TTE) revealed normal left ventricular (LV) function, mild bicuspid aortic valve (BAV) regurgitation, and dilated aortic root. The patient was taken to the cardiac catheterization laboratory and underwent coronary and aortic angiography, which revealed normal coronaries, dilated ascending aorta (3.8 cm), post-ductal aortic interruption, and patent EABG with complex pseudoaneurysm at the distal anastomosis site measuring 2x2.5 cm (Figure ).\nAfter the heart team discussion, endovascular treatment was deemed more feasible and safer than redo-surgery. We implanted two overlapped Valiant Thoracic Stent Graft (Medtronic Vascular, Santa Rosa, CA) proximally 22 mm X 100 mm and distally 28 mm X 100 mm. The aortic angiography revealed complete exclusion of the pseudoaneurysm and patent stent graft with no gradient (Figure ).\nThe patient did very well and was discharged home after two days. A follow-up computed tomographic (CT) angiography revealed a widely patent stent graft with no endoleaks (Figure ).