Filipa Rafael: What Is More Convenient for a Clinic Is Not Necessarily Better for a Patient
Filipa Rafael, Founder and Scientific Director at Fertilidade em Foco, shared a post on LinkedIn about a paper she co-authored with colleagues published in Human Reproduction:
“Convenience is not a clinical outcome. But… it quietly shapes many fertility treatments.
Artificial cycles are easier to schedule. Natural cycles are less predictable.
Yet what is more convenient for a clinic is not necessarily better for a patient.
Earlier this year, we published a multicentre retrospective study in Human Reproduction including 67,048 single-blastocyst transfers after oocyte donation.
Compared with artificial cycles, natural cycles were associated with:
- a higher live birth rate
- a lower miscarriage rate
- lower risks of hypertensive disorders of pregnancy, Caesarean delivery and large-for-gestational-age birth
Importantly, recipient age did not appear to modify these associations.
This was an observational study. It cannot prove causality, and a natural cycle is not appropriate or possible for every patient.
But the results challenge the automatic use of artificial endometrial preparation for logistical reasons alone.
Sometimes a treatment becomes standard because it is easier to organise-not because it is the option best supported by the available evidence.
How much should clinic convenience influence our choice of endometrial preparation?”
Title: Live birth rates after natural cycle versus artificial cycle in women receiving donated oocytes and the impact of female age
Authors: Filipa Rafael, Beatriz Nunes David, Juan Manuel Mascarós, Ana Neves, Elena Labarta, Nicolas Garrido, Sofia Nunes, Juan A Garcia-Velasco, Sérgio Reis-Soares, Samuel Santos-Ribeiro
You can read the Full Article in Human Reproduction.

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