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Discussion Phaeochromocytoma appears to be more prevalent in patients who are in a chronic hypoxic state. This hypoxic state has been postulated to cause the proliferation of adrenal tissue and therefore the formation of phaeochromocytomas. The hypoxia-inducing factor, which is increased in patients with phaeochromocytoma, has been identified as one of the key factors driving this process as it modulates genes that regulate angiogenesis and proliferation. Congenital heart defects seen in HOS can progress to cyanotic heart disease if left uncorrected and may have been the driver for the development of phaeochromocytoma in our patient. © The Author(s) 2019. Published by Oxford University Press on behalf of the European Society of Cardiology.Background Cardiogenic shock (CS) due to takotsubo cardiomyopathy (TTC) is a life-threatening condition. Therapy is challenging because of the ambivalent effects of catecholamines. Catecholamines are required to stabilize blood pressure but might aggravate TTC. Cardiac assist devices could be a suitable solution for conserving catecholamines and the prevention of TTC perpetuation. Case summary We report the case of a male patient with refractory CS and severe respiratory insufficiency as a result of a reverse TTC, which involved both ventricles. Simultaneous circulatory support with an Impella CP® and veno-arterial extracorporeal membrane oxygenation was initiated for cardiopulmonary stabilization and catecholamine weaning. https://www.selleckchem.com/products/mk-4827.html A giant, incidental pheochromocytoma was diagnosed as the cause of TTC. After drug treatment and resection of the tumour, biventricular function completely recovered within 7 weeks. Discussion A rare and challenging situation is the coincidence of a nor/epinephrine-secreting tumour, such as a pheochromocytoma, and severe CS complicating TTC. Although percutaneous left ventricular assist devices (pLVAD) are highly complicated and have shown conflicting results in terms of clinical efficacy for CS, its use may prevent the perpetuation of TTC due to reduced catecholamines requirement. © The Author(s) 2019. Published by Oxford University Press on behalf of the European Society of Cardiology.Background Myocardial bridging (MB), though typically a benign finding, may occasionally lead to syncope, myocardial infarction, arrhythmia, or sudden death. Surgical denervation of transplanted hearts complicates the management of such incidentally detected post-transplant coronary anomalies due to the lack of classic ischaemic symptoms. Case summary A middle-aged female underwent an uncomplicated cardiac transplantation from a healthy male donor in his early 20s who had suffered a cardiac arrest while using cocaine. Given the young donor age, a pre-transplant coronary angiogram (CAG) was deferred. However, 6-week post-transplant, routine CAG, and intravascular ultrasound revealed an extensive MB spanning a significant portion of the left anterior descending coronary artery with substantial myocardium at risk. A stress test with myocardial perfusion imaging performed to evaluate the functional significance of the bridge did not reveal any perfusion abnormalities in the myocardium at risk. Discussion In current practice, younger donors often do not undergo pre-transplantation CAG routinely performed in older donors given the lower prevalence of significant coronary disease. However, post-operatively this young donor was found to have passed on a potentially life-threatening MB to a denervated recipient, who cannot manifest typical anginal symptoms during ischaemia, thereby challenging providers to choose among strategies of watchful waiting, risk stratification, or pre-emptive intervention. In retrospect, the donor's mode of death may have signalled an underlying structural abnormality that warranted further pre-transplant characterization. In order to ensure optimal quality of transplanted hearts, young donors may warrant pre-transplant CAG despite their age, particularly those with a history of drug use or suspicious mode of death. © The Author(s) 2019. Published by Oxford University Press on behalf of the European Society of Cardiology.Background The development of an aortic pseudoaneurysm is a rather rare but potentially fatal complication after cardiac surgery for aortic valve and aorta disease. If a pseudoaneurysm is left untreated, it carries a substantial risk of rupture, thrombosis with subsequently systemic embolization, and compression of the surrounding structures. Case summary We describe a case of a transcatheter repair of a more complex and uncommon pseudoaneurysm following aortic valve replacement in a patient with a history of arterial switch repair for transposition of the great arteries. The pseudoaneurysm originated from the aortic wall and connected to the left ventricular outflow tract (LVOT). The connection to LVOT was closed with a duct occluder, the neck to the aortic wall with an atrial septal defect occluder. After 1 month, the complete pseudoaneurysm was successfully thrombosed. Discussion Percutaneous closure of a complex pseudoaneurysm after arterial switch repair is feasible and safe. However, lifelong follow-up is needed to determine the late results after transcatheter interventions. © The Author(s) 2019. Published by Oxford University Press on behalf of the European Society of Cardiology.Background Adults with complex congenital heart disease palliated with systemic-to-pulmonary artery shunts have become rare and represent a particularly challenging patient group for the cardiologist. One of the complications and causes of severe clinical deterioration during long-term follow-up are progressive obstruction or total occlusion of the shunt. The risk for surgical intervention is frequently high and catheter intervention may be complicated by complex anatomy and shunt calcification. Case summary We report the case of a 47-year-old man with uncorrected (palliated) pulmonary atresia and ventricular septal defect who presented with progressive cyanosis (oxygen saturation 69%) and decreasing exercise capacity. Computed tomography revealed a totally occluded modified left Blalock-Taussig (BT) shunt and a severely stenosed central shunt (Waterston-Cooley) in a patient with confluent but hypoplastic pulmonary arteries and multiple major aortic pulmonary collaterals. Due to a high operative risk, an interventional, percutaneous approach was preferred to re-do surgery.
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