Scanning the journals

Maternal history of vasa previa across gestation using a screening protocol Rebarber A, Dolin C, Fox N, Klauser C.K, Sultzman DH, Roman AS Journal of Ultrasound in Medicine 2014; 33: 141 –47 From a total of 27,573 patients, vasa previa, defined as a fetal vessel within 2 cm of the internal cervical os on transvaginal sonography, was seen in 31 cases. This gives an incidence of 1.1 per 1000. Twenty-nine cases were available for analysis of which 5 had migration and resolution. When the diagnosis was made during the second trimester (<26 weeks) 5 of 21 resolved by term. None resolved when the diagnosis was made in the third trimester. Using their standardised screening for vasa previa diagnosis, a 100% survival rate was achieved. Before reading this article I was not aware that when we diagnose vasa previa in the second trimester almost 25% will resolve.