OBJECTIVE To observe the effect of ethanol vapours on chick embryos regarding developmental defects and hatchability characteristics. METHODS An experimental study was performed in the Department of Anatomy at the Regional Center of College of Physicians and Surgeons, Islamabad, from February, 2006 to February, 2007. Chicken eggs after having been exposed to ethanol vapours produced in a spec...

Implantation failure after IVF is one of the factors associated with a reduced chance of pregnancy for some patients. Assisted hatching methodologies are designed to facilitate the embryo's escape from the zona pellucida, and this strategy has been suggested as a means of improving pregnancy rates in patients with previous implantation failure. The aim of this prospective and randomized study w...

BACKGROUND Routine use of assisted hatching (AH) following ICSI is a controversial issue in the literature. There are rare studies regarding the effect of laser assisted hatching (LAH) on live birth rate. OBJECTIVE Our main goal was to evaluate the effect of LAH on delivery rate as well as congenital anomaly in patients undergoing their first ICSI cycle. MATERIALS AND METHODS A total of 182...

Abstract Study question Is there any effect of laser-assisted zona drilling in improving pregnancy outcomes women undergoing vitrified-warmed embryo transfers? Summary answer Our data suggests that is evidence possible improvement rates with hatching embryos among >40 years age. What known already Mammalian surrounded by a glycoprotein shell called pellucida. The must hatch out this for ...