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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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1. RG Ohye , LA Sleeper , L Mahony , et al. Comparison of shunt types in the Norwood procedure for single-ventricle lesions. N Engl J Med 2010; 362: 19801992.

3. PC Frommelt , DC Sheridan , KA Mussatto , et al. Effect of shunt type on echocardiographic indices after initial palliations for hypoplastic left heart syndrome: Blalock–Taussig shunt versus right ventricle-pulmonary artery conduit. J Am Soc Echocardiogr 2007; 20: 13641373.

5. H Takaoka , M Takeuchi , M Odake , M Yokoyama . Assessment of myocardial oxygen consumption (Vo2) and systolic pressure–volume area (PVA) in human hearts. Eur Heart J 1992; 13 (Suppl E): 8590.

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Cardiology in the Young
  • ISSN: 1047-9511
  • EISSN: 1467-1107
  • URL: /core/journals/cardiology-in-the-young
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