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  • Title: Long-term outcomes of Ross and Ross-Konno operations in patients under 15 years of age.
    Author: Matsuzaki Y, Hiramatsu T, Agematsu K, Sakamoto T, Nagashima M, Matsumura G, Niinami H.
    Journal: Gen Thorac Cardiovasc Surg; 2019 May; 67(5):420-426. PubMed ID: 30421385.
    Abstract:
    OBJECTIVE: The Ross operation is an excellent surgical option for young children, regardless of aortic pathology type. However, failure rates are concerning during the second postoperative decade. We sought to determine the predictors of long-term outcomes after Ross and Ross-Konno operation performed in childhood. METHODS: We performed 34 Ross and 9 Ross-Konno operations in pediatric patients (age < 15 years) from 1996 to 2016, and retrospectively evaluated the long-term results. RESULTS: The postoperative follow-up period was 13.5 ± 3.9 years. In the Ross group, there were one inpatient death and one death after discharge. There were no inpatient deaths in the Ross-Konno group. There were 6 reoperations in the Ross group and 1 in the Ross-Konno group for left ventricular outflow tract (LVOT). Cumulative survival rates were 96.8% and 100% in the Ross and Ross-Konno groups, respectively. The reoperation free rate for LVOT /RVOT (right ventricular outflow tract) were 98.6/85.5% and 91.9/63.4% in the 5th and 10th years of follow-up, respectively. Patients who underwent the operations at age > 8.6 years had higher risks of reoperation for LVOT. Aortic annulus measurements > 24 mm or aorta/pulmonary artery diameter (Ao/PA) ratios > 1.2 conferred higher risks of reoperation for LVOT. CONCLUSIONS: Long-term outcomes after Ross and Ross-Konno operations in children were satisfactory. However, new-onset aortic regurgitation was progressive and reoperation was needed in some children. Age, aortic annulus diameter, and Ao/PA ratio may be able to predict of long-term outcomes after Ross and Ross-Konno operations.
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