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Natural cycle and substituted cycle for deferred transfer
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Natural cycle and substituted cycle for deferred transfer

The transfer of frozen embryos or deferred transfer can be carried out in two ways, the main difference being the way in which endometrial growth is promoted:

Natural cycle
the timing of the menstrual cycle is controlled, as own estrogens and progesterone are used.
substituted cycle
inhibits the secretion of endogenous hormones and hormonal drugs are administered for greater control, in particular estrogen patches and progesterone eggs.
By BSc, MSc (senior clinical embryologist), MD, PhD (gynecologist), (gynecologist), MD, MSc, BSc (gynecologist), BSc, MSc (embryologist) and (invitra staff).
Last Update: 06/01/2020
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