CARE Fertility

Growth trajectory and miscarriage diagnosis threshold in early IVF pregnancy: multicenter study

ABSTRACT Objectives To characterize early‐pregnancy ultrasound findings in pregnancies conceived via in‐vitro fertilization (IVF) for which gestational age is known precisely based on the date of embryo transfer (ET), and to examine their association with first‐trimester pregnanc...

Endometrial Preparation for Frozen Embryo Transfer: Protocols and Pregnancy Outcomes.

Frozen embryo transfer (FET) has become widely used over the past decade, largely because of advances in vitrification techniques. To optimize pregnancy rates in FET cycles, accurate synchronization between embryo development and endometrial receptivity is essential. However, the...

A Decade of Semen Quality Trends in Libya: Nonlinear Temporal Patterns, Age Effects, and WHO 2010–2021 Reclassification

Abstract Reports of declining sperm concentration, count, and motility remain contested amid methodological heterogeneity, geographic bias, and reference-limit changes, and data from the Middle East and North Africa are scarce. We conducted a retrospective single-center cohort st...

Epididymal Versus Testicular Sperm for ICSI in Obstructive Azoospermia: Embryological, Clinical, and Neonatal Outcomes in a Retrospective Cohort

BACKGROUND: Whether sperm source influences intracytoplasmic sperm injection (ICSI) outcomes in men with obstructive azoospermia (OA) remains uncertain. OBJECTIVE: To compare embryological, clinical, and neonatal outcomes of ICSI using percutaneous epididymal sperm aspiration (PE...

Comparison of Birth Weight Outcomes Between Donor Sperm and Partner Sperm in Fresh Embryo Transfer Cycles: A Single‐Center Clinical Cohort Study

ABSTRACT Background Previous studies have found no significant difference in birth weight between donor sperm and partner sperm, and some studies have found that donor sperm is more likely to lead to small for gestational age (SGA). Objective Does the use of donor sperm affect th...