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What is a trigger shot?

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3 fertility expert(s) answered this question

Answer from: Guillermo Quea Campos

Gynaecologist, Specialist in Reproductive Medicine Pronatal Fertility Clinics
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We use a trigger shot but in some cases not always.  We have policies about vitrifying embryos to avoid the ovarian hyperstimulation syndrome in any cases or we are going to freeze them all to improve our outcomes in the treatments. Right now to use the double trigger it’s a very good procedure nevertheless we have another procedure to improve our outcomes. That’s the reason why normally we don’t use this trigger

Answer from: Evangelos Sakkas, MD, MsC

Gynaecologist, Head of Gyncare IVF Clinic Gyncare IVF Clinic
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Trigger shot I don’t know what they really mean by double trigger but there are many things to explain that.
Trigger shot is that you use what one of the three choices we have today or Ovitrell is one of the typical products we have, then Pregni or Gonasi they call it in italy on only case HCG of five or ten thousand (in IVF 10 000 is the second most used triggering) and then what we have after 2012- 2014 under the “Humaidan protocol” we have the Decapeptyl 0.2 so a way in order to avoid OSHH syndrome so Ovitrell, Pregni 10 000 and Decapeptyl 0.2.
In some cases what we say double triggering it’s when we see that we have a very low grade, low percentage of major eggs someone could try to give or the Decapeptyl 0.3 that exists or the Decapeptyl 0.2 and hCG so Gonasi, Pregno 10 000 – that’s a double shot and it achieves it tries to get the maximum of mature eggs possible.

Answer from: Jessica Subira, M.D. Consultant in Gynecology, Sub-specialist in Reproductive Medicine

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The trigger shot is what we give to achieve final maturation of the oocyte. The oocyte is growing inside of the follicle but it’s not mature and it does mature around the time of ovulation. In order to get that maturation, we have to give a second injection of a different hormone and then with that we can achieve the maturation needed to get a mature egg because in the end, we can only work with mature eggs. We cannot really work with immature eggs and we can only freeze mature eggs. It’s very important to get them mature because otherwise they are not viable.

About this question:

What is a trigger shot for fertility?

HCG also known as human chorionic gonadotropin is used in the stimulation process to give a final call for eggs to mature. The simple and more common name for medication that is used in fertility therapy as injectable is a “trigger shot”. Trigger injection can be given in a couple of variations depending on the response and other factors.

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