Systems and methods of pH tissue monitoring
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United States of America Patent
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N/A
Issued Date -
Feb 27, 2003
app pub date -
May 2, 2002
filing date -
May 28, 1999
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to the use of pH measurements of tissue as a system for controlling diagnostic and/or surgical procedures. The invention also relates to an apparatus used to perform tissue pH measurements. Real time tissue pH measurements can be used as a method to determine ischemic segments of the tissue and provide the user with courses of conduct during and after a surgical procedure. When ischemia is found to be present in a tissue, a user can effect an optimal delivery of preservation fluids to the site of interest and/or effect a change in the conduct of the procedure to raise the pH of the site. A preferred embodiment includes a method of detecting acidosis in tissue comprising the steps of contacting the tissue of a patient with a first pH electrode disposed in an anterior wall of the left ventricle, and further contacting the tissue of the patient with a second pH electrode disposed in a posterior wall of the left ventricle.
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