In IVF surgery, night acupuncture is one of the most critical steps. In the IVF process, when the follicle grows to a certain stage, the doctor needs to give the expectant mother a special drug to promote the final maturation of the oocyte. This is We often talk about night needles.
What is night injection?: Because the egg retrieval is usually done in the morning, the egg usually matures about 35-36 hours after the injection of the drug, so the night injection is usually arranged at night two days before the egg retrieval, so it is called " Night needle".
Usually doctors need to consider the size of the mother's follicle, the level of estrogen, the risk of excessive ovarian syndrome and other factors to determine the time of night needle. The time of night needle injection is very important, often accurate to a few minutes. The best time to give night shots is when the follicles have grown to 18-19mm.
If the injection time is too early, the morphology and function of the follicles are not fully mature, there are not enough LH receptors on the granulosa cells of the follicle, and they cannot respond appropriately to HCG, and the cumulus complex is not loose enough and tightly wrapped in the oocyte. Negative pressure suction of the eggs cannot fall off during egg retrieval, resulting in low egg retrieval rate, and may affect the maturation rate of oocytes, and adversely affect both the fertilization rate and the cleavage rate. If the injection time is too late, the oocytes may be over-matured, their quality deteriorated, or even discharged early. Even if the eggs are obtained, they will miss the most appropriate time for fertilization. Therefore, medication must be taken on time in strict accordance with the doctor's advice.
Precautions for night injection
1. Timing: Patients should strictly follow the doctor's instructions to inject the night injection. Those who do not inject on time or who have not injected should contact their attending doctor in time and follow the doctor's advice for remedial treatment.
2. Rest: After the night injection, you should pay attention to rest, eat a reasonable diet, and exercise lightly to avoid ovarian torsion or early ovulation due to strenuous exercise.
3. Medication: Do not arbitrarily administer or discontinue the medication after the night needle. If you need medication for other physical diseases, you should inform your attending doctor in time.
4. Preservation: If you bring the medicine home for injection, keep it in accordance with the nurse's instructions or the instructions of the drug after you receive the medicine (pay special attention to the temperature).
5. Egg retrieval: usually 35-36 hours for egg retrieval by night injection. On the day of egg retrieval, you should go to the hospital on time, prepare for surgery as required, and prepare documents.
In the IVF treatment, after the night injection, it is indicated that the egg is about to be retrieved. Do not do some strenuous exercise at this time, especially the pressure exercise on the abdomen, to avoid premature birth, early ovulation or other accidents.
