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Echocardiographic predictors of aortopulmonary collaterals in infants with tetralogy of fallot and pulmonary atresia

Andrew S. Mackie, MD^*,, Kimberlee Gauvreau, ScD^*,, Stanton B. Perry, MD^*,, Pedro J. del Nido, MD, PhD^, and Tal Geva, MD, FACC^*,,*

^* Departments of Cardiology, Children’s Hospital, Boston, Massachusetts, USA
Cardiac Surgery, Children’s Hospital, Boston, Massachusetts, USA
Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA
Department of Surgery, Harvard Medical School, Boston, Massachusetts, USA

View larger version (80K): [in a new window]   Figure 1 Measurement of branch pulmonary artery diameters from the parasternal short-axis view. Ao = aorta; LPA = left pulmonary artery; RPA = right pulmonary artery.

View larger version (18K): [in a new window]   Figure 2 Comparison of branch pulmonary artery diameter Z score between patients with 1 aortopulmonary collaterals (APCs) and those without APCs. Circles represent individual data points. The median values and the corresponding 10th to 90th percentiles are shown for each group. LPA = left pulmonary artery; RPA = right pulmonary artery.

View larger version (11K): [in a new window]   Figure 3 Receiver-operator characteristic curve of branch pulmonary artery diameter Z score. Left or right pulmonary artery diameter Z score –2.5 had the maximum sensitivity and specificity for identifying patients having 1 aortopulmonary collaterals.