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 48-year-old male patient underwent surgical correction of interrupted CoA at the age of 22 years using EABG from the LSCA to the descending aorta. He presented with shortness of breath. The patient was found to be hypertensive with a BP of 170/90 mmHg on both arms. The BP in the lower limbs was 125/85 mmHg with obvious brachiofemoral delay. The patient was taking amlodipine 10 mg and valsartan 160 mg, both once a day. The ECG revealed LV hypertrophy. His TTE revealed normal LV systolic function, with LV hypertrophy and impaired relaxation. A CT angiography revealed stenosis at the proximal anastomosis site of the EABG (Figure ).\nThe plan was to proceed with cardiac catheterization and stenting the proximal stenosis after measuring the gradient but the patient refused any kind of intervention. The patient was sent home after adding a third antihypertensive medication, which wass bisoprolol 5 mg once a day. After six months, the patient's symptoms improved and his BP was 145/80 mmHg. His repeated TTE revealed no major changes.