Slow programmable and ultra‐rapid freezing of human embryos

Abstract

Our in-house URF method gave comparable results to slow programmable freezing. Although the risk of potential contamination is a major drawback of the present ultra-rapid freezing technique, future refinement will minimize or entirely eliminate this concern.

Assisted reproductive technologies in Thailand: 2001–2007 results generated from the ART Registry, Royal Thai College of Obstetricians and Gynaecologists

“…Slow programmable freezing was the standard method for embryo cryopreservation in most centers in Thailand. Few employed rapid freezing and they also reported comparable results using slow freezing 12 …”

“…Few employed rapid freezing and they also reported comparable results using slow freezing. 12 Triplet or higher-order multiple pregnancies accounted for approximately 10% of multiple pregnancies or <3% of all deliveries. This was, however, underestimated as some multiple pregnancies might be lost through spontaneous miscarriage before 20 weeks' gestation.…”