The mucopolysaccharidoses (MPSs) are inherited lysosomal storage disorders caused by the absence of functional enzymes that contribute to the degradation of glycosaminoglycans (GAGs). The progressive systemic deposition of GAGs results in multi-organ system dysfunction that varies with the particular GAG deposited and the specific enzyme mutation(s) present. Cardiac involvement has been reported in all MPS syndromes and is a common and early feature, particularly for those with MPS I, II, and VI. Cardiac valve thickening, dysfunction (more severe for left-sided than for right-sided valves), and hypertrophy are commonly present; conduction abnormalities, coronary artery and other vascular involvement may also occur. Cardiac disease emerges silently and contributes significantly to early mortality.The clinical examination of individuals with MPS is often difficult due to physical and, sometimes, intellectual patient limitations. The absence of precordial murmurs does not exclude the presence of cardiac disease. Echocardiography and electrocardiography are key diagnostic techniques for evaluation of valves, ventricular dimensions and function, which are recommended on a regular basis. The optimal technique for evaluation of coronary artery involvement remains unsettled.Standard medical and surgical techniques can be modified for MPS patients, and systemic therapies such as hematopoietic stem cell transplantation and enzyme replacement therapy (ERT) may alter overall disease progression with regression of ventricular hypertrophy and maintenance of ventricular function. Cardiac valve disease is usually unresponsive or, at best, stabilized, although ERT within the first few months of life may prevent valve involvement, a fact that emphasizes the importance of early diagnosis and treatment in MPS.
In this series of patients, the mixed TAPVC could be corrected only with preoperative two-dimensional Doppler echocardiography with good immediate results, and we believe that the use of computed angiotomography combined with three-dimensional reconstruction may improve the surgical outcome mainly in the mixed and infracardiac group of TAPVC.
A partir das contribuições da geografia cultural e humanista, este texto investiga o folguedo do bumba-meu-boi maranhense como uma manifestação popular capaz de revelar valores e atitudes construídos socialmente: um território de encontros, onde o sagrado é emoldurado pelo profano, uma oração que canta e dança a alegria da vida, uma promessa traduzida em beleza.
Background: The bedside two-dimensional echocardiography (2-D ECHO) has been successfully used to guide the balloon atrial septostomy, speeding up the procedure and preventing the risks of transportation to the hemodynamics laboratory.
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