Right ventricle-pulmonary artery shunt in first-stage palliation of hypoplastic left heart syndrome

Shunji Sano, Kozo Ishino, Masaaki Kawada, Sadahiko Arai, Shingo Kasahara, Tomohiro Asai, Zen Ichi Masuda, Mamoru Takeuchi, Shin Ichi Ohtsuki, S. Bert Litwin, Constantine Mavroudis, Marco Pozzi, Christian Pizarro, Francois Lacour-Gayet

Research output: Contribution to journalArticle

Abstract

Objective: Pulmonary overcirculation through a systemic-pulmonary shunt has been one of the major causes of early death after the Norwood procedure. To avoid this lethal complication, we constructed a right ventricle-pulmonary shunt in first-stage palliation of hypoplastic left heart syndrome. Methods: Between February 1998 and February 2002, 19 consecutive infants, aged 6 to 57 days (median, 9 days) and weighing 1.6 to 3.9 kg (median, 3.0 kg), underwent a modified Norwood operation with the right ventricle-pulmonary artery shunt. The procedure included aortic reconstruction by direct anastomosis of the proximal main pulmonary artery and a nonvalved polytetrafluoroethylene shunt between a small right ventriculotomy and a distal stump of the main pulmonary artery. The size of the shunt used was 4 mm in 5 patients and 5 mm in 14. Results: All patients were managed without any particular manipulation to control pulmonary vascular resistance. There were 17 survivors (89%), including 3 patients weighing less than 2 kg. Two late deaths occurred due to obstruction of the right ventricle-pulmonary artery shunt. Thirteen patients underwent a stage II Glenn procedure after a mean interval of 6 months, with 2 hospital deaths. To date, a stage III Fontan procedure has been completed in 4 patients. Overall survival was 62% (13/19). Right ventricular fractional shortening at the last follow-up (3-48 months after stage I) ranged from 26% to 43% (n = 13, mean, 33%). Conclusion: Without delicate postoperative management to control pulmonary vascular resistance, the modified Norwood procedure using the right ventricle-pulmonary shunt provides a stable systemic circulation as well as adequate pulmonary blood flow. This novel operation may be particularly beneficial to low-birth-weight infants with hypoplastic left heart syndrome.

Original languageEnglish (US)
Pages (from-to)504-509
Number of pages6
JournalJournal of Thoracic and Cardiovascular Surgery
Volume126
Issue number2
DOIs
StatePublished - Aug 1 2003

ASJC Scopus subject areas

  • Surgery
  • Pulmonary and Respiratory Medicine
  • Cardiology and Cardiovascular Medicine

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    Sano, S., Ishino, K., Kawada, M., Arai, S., Kasahara, S., Asai, T., Masuda, Z. I., Takeuchi, M., Ohtsuki, S. I., Litwin, S. B., Mavroudis, C., Pozzi, M., Pizarro, C., & Lacour-Gayet, F. (2003). Right ventricle-pulmonary artery shunt in first-stage palliation of hypoplastic left heart syndrome. Journal of Thoracic and Cardiovascular Surgery, 126(2), 504-509. https://doi.org/10.1016/S0022-5223(02)73575-7