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Mortality according to the classification of Spitz
| Classification | Number | Operative death | Non-operative death | Survival |
|---|---|---|---|---|
| Spitz A (BW >1500 g, without major CD) | 29 | 15 | 05 | 09 |
| Spitz B (BW <1500 g or major CD) | 15 | 10 | 03 | 02 |
| Spitz C (BW <1500 g and major CD) | 5 | 3 | 2 | 0 |
BW: Birth weight; CD: Cardiac disease
