DD was breech most of pregnancy (frequent scans due to previous fertility probs).
Consult persuaded me to try ECV 2 weeks before EDD which (for me) was the most painful procedure I've ever experienced, and it didn't work.
Booked in for elective C-Sect 1 week before EDD but waters broke (HUGE gush like you see on TV!) & went into labour 2 days after ECV. Went into hosp & was being prepd for C-Sect with spinal block when cord prolapsed.
Luckily it was spotted immediately by my wonderful midwife as she was about to insert catheter & I was rushed to theatre for a crash section instead, with midwife's hand right up my vagina holding DD, cord & placenta in place until I was cut open.
Luckily DD was fine - AGPAR low initially but improved after oxygen. Gases in cord blood were tested & ok so no brain damage from oxygen starvation.
Based on my very frightening experience, in the event of another breech preg I would not have another ECV & would book elective C-Sect.
I know my experience is rare but felt I should share it as I had not heard of cord prolapse in ante-natal classes etc.
I recovered quickly from C-Sect - back on my feet taking a shower within 24 hrs & BF from the start.
HTH