LOCALIZATION OF LEFT-TO-RIGHT SHUNTS BY RADIOACTIVE KRYPTON
نویسندگان
چکیده
منابع مشابه
Localization 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 کاملLeft-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 کاملKrypton-85 in the Detection of Intracardiac Left-to-right Shunts.
ANUMBER of methods have been developed for detecting left-to-right shunts during cardiac catheterization of which the most frequently employed is determining the difference in oxygen saturations. This method has limited application in the presence of small shunts, however, since the minimal changes are often within the error of this method.' Therefore, other more sensitive technics have been em...
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 کاملOximetric detection of intracardiac left-to-right shunts.
To assess prevailing guidelines for the oximetric detection of intracardiac left-to-right shunts, we examined the variability of right heart oxygen saturation step-ups in 1121 catheterisations in children with aortic and pulmonary stenosis, who were studied as part of the joint study of the natural history of congenital heart defects. It is estimated that in the absence of intracardiac shunting...
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ژورنال
عنوان ژورنال: Heart
سال: 1964
ISSN: 1355-6037
DOI: 10.1136/hrt.26.5.577