September 11, 2026 · American heart journal · DOI: 10.1016/j.ahj.2026.107608

Accuracy of Indirect Fick Method for Systemic Flow Calculation In Adults With A Fontan Circulation

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The authors aimed to evaluate the accuracy of empirical resting oxygen consumption (VO2) equations in adults with a Fontan circulation by comparing estimated VO2 with directly measured values. They sought to determine the reliability of these formulas for individualized hemodynamic assessment in this patient population, particularly regarding their impact on indirect Fick-derived systemic blood flow calculations.

Jef Van den Eynde, Alexander C Egbe, Alexander Van De Bruaene, Pieter De Meester, Yogesh N V Reddy, Alexander R Opotowsky, William R Miranda

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