**12. Conclusion**

SA in experienced hands has allowed the survival of the preterm or high-risk newborn in a surprising way. The anesthetic technique of choice in children with concomitant diseases is SA, due to the many advantages. Allows for a quick recovery with minimal side effects. LA such as ropivacaine produce fewer motor changes after spinal block. Pencil point needles and ultrasound have greatly improved the side effects of EC.
