Stepwise evaluation of left to right shunts by echocardiography
نویسندگان
چکیده
منابع مشابه
Left-to-Right Shunts
Contrary to the opinion of French pediatrician HenriLouis that isolated ventricular septal defects (VSDs) are universally well tolerated, the subsequent discoveries of Eisenmenger, Abbott, Wood, and others have taught us that the prognosis of left-to-right shunt lesions is not always benign. After more than a century of research, as pediatric cardiologists and congenital heart surgeons, we clai...
متن کاملIntracardiac right-to-left shunts demonstrated by two-dimensional echocardiography after peripheral vein injection.
venous injections ofdextrose 5 per cent in water, for the detection and localisation of atrial and ventricular right-to-left shunts was evaluated in 70 adult patients. Based on their catheterisation data, 20 patients had a shunt at atrial level (group 1) and 14 patients a ventricular septal defect (group 2). Thirty-six patients without a shunt by oximetry served as controls. Echo contrast could...
متن کاملThe Identification of Right-to-Left Shunts
SEVERAL METHODS are now used in conjunction with cardiac catheterization for localizing and quantitating right-to-left shunts. These include the recording of indicator-dye concentration curves after selective intracardiac dye injection,14 the external recording of radioactivity following injection of radioactive materials,5 6 and the use of cardioangiograms or cineangiograms to picture the cour...
متن کاملLocalization of Left-to-right Shunts by Radioactive Krypton.
In 1958 Weitzman and McAlister reported on the use of a radioactive tracer (32p) for accurate localization of the site of a left-to-right shunt in congenital cardiac lesions. The advantage of such a technique is that it can demonstrate premature arrival of the tracer in the chamber or vessel that receives the shunt. There is a clear-cut time difference due to the short circuit through the defec...
متن کاملNegative contrast echocardiography: a new method for detecting left-to-right shunts.
Cross-sectional echocardiographic visualization of the interatrial septum in both normal persons and patients with atrial septal defects has been reported. Although septal defects can generally be visualized, false positives are frequently encountered. This study evaluated whether visualizing the patterns of contrast flow in the region of an apparent atrial septal defect by cross-sectional echo...
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ژورنال
عنوان ژورنال: Indian Heart Journal
سال: 2013
ISSN: 0019-4832
DOI: 10.1016/j.ihj.2013.03.003