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Open in new tab Download slide Open in new tab Download slide OBJECTIVES To review the long-term surgical outcomes of ventricular septation for double-inlet left ventricle and reconsider the possibility of ventricular septation as an option of surgical treatments. METHODS Between 1978 and 1994, 22 patients with double-inlet left ventricle underwent ventricular septation. The mean age at operation was 5.3 years (range 0–22 years). Follow-up was carried out in 20 of 22 patients (91%) and the mean follow-up period was 14.7 years (range 0–39 years). RESULTS Actuarial survival and reoperation-free survival rates at 30 years were 49% and 21%, respectively. To date, 8 patients have been followed up. Among them, atrioventricular valve replacement and permanent pacemaker were required in 4 and 7 patients, respectively. Late cardiac catheter examination at 25.5 years after surgery showed that the median cardiac index was 2.6 l/min/m2 (range 2.1–3.4 l/min/m2), left ventricular end-diastolic pressure was 7 mmHg (range 4–11 mmHg), left ventricular ejection fraction was 50% (range 27–63%), right ventricular ejection fraction was 53% (range 31–66%) and central venous pressure was 6 mmHg (range 4–11 mmHg). At the latest follow-up, the New York Heart Association Functional Classification was I for 5 patients, II for 2 patients and III for 1 patient. The median peak oxygen uptake was 52.9% (range 44.1–93.5%). CONCLUSIONS Some patients with double-inlet left ventricle were able to maintain low central venous pressure and a sufficient cardiac index long after ventricular septation. Although the single ventricle strategy remains a first-line treatment, ventricular septation can be a surgical treatment option. [ABSTRACT FROM AUTHOR]