Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Today, cardiovascular diseases are characterized as one of the major causes of death worldwide, generated by various factors such as age, alcohol consumption, air pollution, congenital defects, obesity, smoking, high blood cholesterol and others. Thanks to the constant development of cardiovascular technologies, new successful surgery techniques are emerging, increasing chances of treating most of heart problems. Recently, a major U.S. study carried out on both, heart bypass and angioplasty surgeries, fuelled debates regarding the effectiveness of each of them. To find out more about these surgical procedures, their efficacy and potential risks – read this book.