{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,10]],"date-time":"2026-03-10T22:36:56Z","timestamp":1773182216773,"version":"3.50.1"},"reference-count":34,"publisher":"Cambridge University Press (CUP)","issue":"4","license":[{"start":{"date-parts":[[2023,11,6]],"date-time":"2023-11-06T00:00:00Z","timestamp":1699228800000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":["cambridge.org"],"crossmark-restriction":true},"short-container-title":["Cardiol Young"],"published-print":{"date-parts":[[2024,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec id=\"S1047951123003736_as1\"><jats:title>Background:<\/jats:title><jats:p>This study aimed to assess the impact of caloric intake and weight-for-age-Z-score after the Norwood procedure on the outcome of bidirectional cavopulmonary shunt.<\/jats:p><\/jats:sec><jats:sec id=\"S1047951123003736_as2\"><jats:title>Methods:<\/jats:title><jats:p>A total of 153 neonates who underwent the Norwood procedure between 2012 and 2020 were surveyed. Postoperative daily caloric intake and weight-for-age-Z-score up to five months were calculated, and their impact on outcome after bidirectional cavopulmonary shunt was analysed.<\/jats:p><\/jats:sec><jats:sec id=\"S1047951123003736_as3\"><jats:title>Results:<\/jats:title><jats:p>Median age and weight at the Norwood procedure were 9 days and 3.2 kg, respectively. Modified Blalock-Taussig shunt was used in 95 patients and right ventricle to pulmonary artery conduit in 58. Postoperatively, total caloric intake gradually increased, whereas weight-for-age-Z-score constantly decreased. Early and inter-stage mortality before stage II correlated with low caloric intake. Older age (p = 0.023) at Norwood, lower weight (p &lt; 0.001) at Norwood, and longer intubation (p = 0.004) were correlated with low weight-for-age-Z-score (&lt; \u20133.0) at 2 months of age. Patients with weight-for-age-Z-score &lt; \u20133.0 at 2 months of age had lower survival after stage II compared to those with weight-for-age-Z-score of \u20133.0 or more (85.3 versus 92.9% at 3 years after stage II, p = 0.017). There was no difference between inter-stage weight gain and survival after bidirectional cavopulmonary shunt between the shunt types.<\/jats:p><\/jats:sec><jats:sec id=\"S1047951123003736_as4\"><jats:title>Conclusion:<\/jats:title><jats:p>Weight-for-age-Z-score decreased continuously throughout the first 5 months after the Norwood procedure. Age and weight at Norwood and intubation time were associated with weight gain. Inter-stage low weight gain (Z-score &lt; \u20133) was a risk for survival after stage II.<\/jats:p><\/jats:sec>","DOI":"10.1017\/s1047951123003736","type":"journal-article","created":{"date-parts":[[2023,11,7]],"date-time":"2023-11-07T10:22:15Z","timestamp":1699352535000},"page":"876-883","update-policy":"https:\/\/doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":1,"title":["Impact of calorie intake and weight gain after Norwood procedure on the outcome of stage II 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