Easier ECV?

A US research study, by Carvalho et al, determined that using neuraxial anesthesia during External Cephalic Version (ECV) increases the rate of success from 38% to approximately 60%. By making the uterus more lax and flexible the doctor is able to manipulate the baby's position with more ease. 
Some gentle and skilled doctors I know self-report a 50% success rate without anesthesia. 
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