The First Twelve Weeks of Gestation

Peri-implantation Events.- 1 Differentiation of the Trophoblast.- 2 The Endometrium and Implantation.- Anatomy and Physiology of Placental and Embryonic Development.- 3 Early Human Placental Morphology.- 4 Ultrasound Features of the Early Gestational Sac.- 5 Doppler Ultrasound Investigations of Pelvic Circulation During the Menstrual Cycle and Early Pregnancy.- 6 The Maternotrophoblastic Interface: Uteroplacental Blood Flow.- 7 Placental Biochemistry.- 8 Endocrinology of the Placenta and Embryo-placental Interaction.- 9 The Gestational Uterine Environment.- 10 Functional Aspects of Embryology.- 11 Morphology and Significance of the Human Yolk Sac.- Assisted Conception.- 12 Pregnancy Rate and First-Trimester Outcome Following Ovulation Induction.- 13 Implantation After Embryo Transfer.- 14 Artificial Endometrial Preparation for Implantation.- Failures of Placentation and Embryonic Development.- 15 Epidemiology and Etiology of Early Pregnancy Disorders.- 16 Morphology and Mechanisms of Abortion.- 17 Ectopic Sites of Placentation.- 18 Hydatidiform Mole and Related Disorders.- 19 Pathogenesis of Human Malformations.- Diagnostic Methods.- 20 Diagnosis of Abnormalities of Early Pregnancy by Measurement of Fetoplacental Products in Biological Fluids.- 21 Ultrasonography of Abnormal Early Pregnancy.- 22 Embryoscopy.- 23 Prenatal Diagnosis and Invasive Techniques in the First Trimester of Pregnancy.- Treatments.- 24 Medical Therapy.- 25 Surgical Therapy.- 26 Immunologic Therapy for Recurrent Spontaneous Abortion.- Future Guidelines.- 27 Human and Animal Models: Limitations and Comparisons.- 28 Classification of Abortion Material; Myth or Reality?.- 29 Should Early Pregnancy Dysfunction Be Treated or Adequately Diagnosed, Identified, and Prevented?.- 30 Theological Views on Assisted Reproductive Technologies.- 31 Extracorporeal Embryonic Development: Juridical Views.- 32 Medical Views on Assisted Procreation.- Epilogue.