What is the Stimulated Cycle?
The stimulated cycle is the first therapeutic step in reproductive treatments. The goal of the stimulated cycle is to achieve the development of more than one egg and to concentrate sexual intercourse on the most fertile days of the couple.
Start of stimulation
Traditionally, stimulation begins in early follicular phase on day 2-3 of the cycle, in order to achieve the greatest synchronization in follicular development and a greater use of each patient’s ovarian reserve; in accordance with the idea of the existence of a single wave of follicular recruitment in the cycle.
Recently, thanks to the new theory of multiple waves of follicular recruitment in the same cycle, a new stimulation protocol has been developed known as double stimulation, that is, a first stimulation in follicular phase and a second in luteal phase.
This second stimulation begins between 3-5 days after the egg retrieval from the follicular phase, and allows for the retrieval of a higher number of eggs in a single cycle. The entire stimulation process is monitored by serial ultrasounds, for which our specialists are available seven days a week.
In both cases, when the follicles reach the appropriate number and size, a hormone called GnRH analog is administered to complete the maturation of the eggs, with the egg retrieval scheduled around 36 hours after administration.
This protocol is considered especially indicated in patients in whom time is critical, such as cancer patients, women with low ovarian reserve, or advanced maternal age.