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Time Course of Diastolic and Systolic Function Improvement After Pulmonary Valve Replacement in Adult Patients With Tetralogy of Fallot

Alexander van Straten, MD^_*,_*, Hubert W. Vliegen, MD, PhD, Hildo J. Lamb, MD, PhD^_*, Stijntje D. Roes, MD^_*,, Ernst E. van der Wall, MD, PhD, Mark G. Hazekamp, MD, PhD and Albert de Roos, MD, PhD^_*

^_* Radiology
Cardiology
Cardiothoracic Surgery, Leiden University Medical Center, Leiden, the Netherlands

View larger version (18K): [in a new window]   Figure 1 Examples of flow curves of blood flow through pulmonary (A) and tricuspid (B) valve. The pulmonary flow curve shows severe pulmonary regurgitation and a small amount of end-diastolic forward flow in the main pulmonary artery (EDFF), the latter being a marker of restriction of the right ventricle. The tricuspid flow curve shows a normal flow pattern with the early filling, peak flow rate (Epfr), slightly higher than the atrial contraction, peak flow rate (Apfr), and no tricuspid regurgitation. Avol = atrial contraction, volume; Evol = early filling, volume.