Cardiac Cath Lab Anatomy & Hemodynamicsdrstultz.com/Presentations/2005 09 15 Cath anatomy.pdf©...
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© 2003-2006, David Stultz, MD Cardiac Cath Lab Anatomy & Hemodynamics David Stultz, MD Cardiology Fellow, PGY 6
Transcript of Cardiac Cath Lab Anatomy & Hemodynamicsdrstultz.com/Presentations/2005 09 15 Cath anatomy.pdf©...
© 2003-2006, David Stultz, MD
Cardiac Cath Lab Anatomy& Hemodynamics
David Stultz, MDCardiology Fellow, PGY 6
© 2003-2006, David Stultz, MD
© 2003-2006, David Stultz, MD
© 2003-2006, David Stultz, MD
© 2003-2006, David Stultz, MD
© 2003-2006, David Stultz, MD
© 2003-2006, David Stultz, MD
© 2003-2006, David Stultz, MD
© 2003-2006, David Stultz, MD
© 2003-2006, David Stultz, MD
© 2003-2006, David Stultz, MD
© 2003-2006, David Stultz, MD
© 2003-2006, David Stultz, MD
© 2003-2006, David Stultz, MD
© 2003-2006, David Stultz, MD
© 2003-2006, David Stultz, MD
Hemodynamic Calculations
• Cardiac Output• Aortic Valve Area• Mitral Valve Area
• Cardiac shunts
© 2003-2006, David Stultz, MD
© 2003-2006, David Stultz, MD
Calculation of Blood Flow
• Qp = O2 consumption / PV O2 content – PA O2 content
• Qs (Cardiac Output) = O2 consumption /SA O2 content – MV O2 content
© 2003-2006, David Stultz, MD
O2 consumption
• Douglas bag most accurate– Never used
• Estimated common (10% error)– 125 mL/m2 (110 mL/m2 for elderly)– BSA (m2) = Sq Root (wt in kg * height in cm/3600)
• AV difference (Fick) (5% error)– Photodetector technique of expired air
• Cardiac ouput = O2 consumption/A-V O2oxygen content difference
• Cardiac Output = O2 Consumption/Hgb x 1.36 [x 10] x (Arterial O2 – Mixed Venous O2)
© 2003-2006, David Stultz, MD
Valve Area
• AVA = Cardiac Output (mL/min)HR x SEP (s) x 44.3 x sqrt (Mean Aortic grad)
Hakke equationAVA = Cardiac Output (L/min) / sqrt (Mean or peak-peak
aortic gradient)
• MVA = Cardiac Output (mL/min)HR x DFP (s) x 38.5 x sqrt (Mean Mitral grad)
© 2003-2006, David Stultz, MD
© 2003-2006, David Stultz, MD
