A New Sensitive Technic for the Detection of Small Cardiac Shunts
نویسنده
چکیده
0NE of the difficult problems in cardiac catheterization is the identification and localization of small left-to-right shunts. This is particularly trying with small residual shunts following intracardiac surgery. It is recognized that standard oximetry, indicator-dilution curves with injection into the right heart, and right-sided angiocardiography are not sensitive enough to identify small left-to-right shunts. As a result, several very sensitive technics using radioactive gases such as methyl iodide, krypton, or xenon, have been developed. However, the handling of radioactive gases in an improperly ventilated catheterization laboratory is hazardous, and expensive and complex de-
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The freon test. A new sensitive technic for the detection of small cardiac shunts.
0NE of the difficult problems in cardiac catheterization is the identification and localization of small left-to-right shunts. This is particularly trying with small residual shunts following intracardiac surgery. It is recognized that standard oximetry, indicator-dilution curves with injection into the right heart, and right-sided angiocardiography are not sensitive enough to identify small le...
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