Empty Follicle Syndrome ( EFS) - a guide for IVF doctors

A vaginal egg collection is a very routine procedure in an IVF clinic. The procedure is over in about 20 minutes , and good doctors will usually get one egg from each mature follicle.

However, one of the dreaded complications which can mar a vaginal egg collection is called the empty follicle syndrome. The doctor starts puncturing the follicles , and is dismayed when the embryologist does not getting any eggs whatsoever in the follicles. The procedure  in the OR seems to be technically straightforward. The follicles collapse well when aspirated and thee is free flow of follicular fluid into the test tubes. However, when the embryologist scans the follicular fluid under his microscope, he does not find any eggs as all !

Read more at http://www.drmalpani.com/efs-a-guide-for-ivf-doctors.htm