Download e-book for kindle: Aortic Stenosis: Case-Based Diagnosis and Therapy by Amr E. Abbas

By Amr E. Abbas

ISBN-10: 1447152417

ISBN-13: 9781447152415

ISBN-10: 1447152425

ISBN-13: 9781447152422

​With the appearance of much less invasive remedies for aortic stenosis together with percutaneous and apical substitute, extra sufferers are being provided this expertise. As such, deciding upon the genuine severity of aortic stenosis is changing into paramount. Many scientific eventualities happen the place the world and gradient estimates of severity don't fit. This publication will current case through case examples of alternative sufferers with a wide selection of aortic stenosis. it's going to help cardiologists in deciding on sufferers with actual aortic stenosis who could benefit from valve substitute. it is going to additionally spotlight the function and introduction of recent expertise because the function of CTA, MRI, and 3D echo for analysis and TAVR and mini surgical procedure for treatment​. The viewers will diversity from scientific cardiologists, imaging cardiologists and interventionalists alike.

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2 cm). 9 cm) [17]. Similarly, in the presence an eccentric jet across the AV (as in cases of a bicuspid AV, non uniform calcification of cusps, and uneven restriction of AV leaflets), there is an increase in pressure loss as the eccentric jet collides with the ascending aortic wall with resultant energy 3 Physiological Basis for Area and Gradient Assessment: Hemodynamic Principles of Aortic Stenosis loss due to heat, flow separation, and vortex formation. In addition to increased pressure loss, there is a decrease in Prec, and the ∆P derived from either Doppler or catheterization, will be disproportionately higher relative to the GOA (Doppler-Catheter Concordance).

15. 16. 17. 18. 19. 20. 21. 22. 23. 24. D. Intensive lipid lowering with simvastatin and ezetimibe in aortic stenosis. N Engl J Med. 2008;359:1343–56. Roberts WC. The congenitally bicuspid aortic valve. A study of 85 autopsy cases. Am J Cardiol. 1970;26: 72–83. Steinberger J, Moller JH, Berry JM, Sinaiko AR. Echocardiographic diagnosis of heart disease in apparently healthy adolescents. Pediatrics. 2000;105:815–8. Emanuel R, Withers R, O’Brien K, Ross P, Feizi O. Congenitally bicuspid aortic valves.

1. Para Valvular Determinants The relationship between the AVA and the generated ∆P is highlighted in Fig. 2, with a steep increase in ∆P when the AVA <1 cm2. Similarly, as transvalvular flow increases, the ∆P is increased in an exponential manner and the delta change of ∆P for the amount of Q is higher with severely stenotic valves (<1 cm2) (Fig. 4). High flow may occur with fever, severe anemia, pregnancy, thyrotoxicosis, arterio-venous fistulas, and thiamine deficiency [12]. In addition, aortic regurgitation may also increase transaortic flow leading to an increase in the AVvel and thus the ∆P, particularly in the presence of combined valve stenosis and regurgitation.

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Aortic Stenosis: Case-Based Diagnosis and Therapy by Amr E. Abbas

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