Validation of Quintero stage III sub‐classification for twin–twin transfusion syndrome based on visibility of donor bladder: characteristic differences in pathophysiology and prognosis

Abstract

Quintero stage III atypical was characterized by a high incidence of AA anastomoses and UA-AREDV of the donor, resulting in IUFD. Subclassification of Stage III based on visibility of the bladder of the donor twin was adequate for and compatible with differentiating prognosis and pathophysiology.