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Feasibility of conductance catheter-derived pressure–volume loops to investigate ventricular mechanics in shunted single ventricles

  • Ryan J. Butts (a1), Tain-Yen Hsia (a2) and G. Hamilton Baker (a1)


We present pressure–volume loops obtained from two patients with single-ventricle physiology, one with a modified Blalock–Taussig shunt and one with a right ventricle-to-pulmonary artery shunt. The dissimilarities in pressure–volume loop contour and related indices highlight potentially important differences in ventricular mechanics between the shunt types.


Corresponding author

Correspondence to: Dr G. Hamilton Baker, MD, Department of Pediatrics, Division of Cardiology, Medical University of South Carolina, 165 Ashley Avenue, Charleston, South Carolina 29425, United States of America. Tel: +1 843 792 3286; Fax: +1 843 792 3284; E-mail:


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