In recent years, we have witnessed significant advances in obstetric anesthesia, providing greater safety for the mother and the fetus, as well as an improvement in pain management procedures during labor. This volume presents updates in obstetrics and gynecology that are reflective of the changes in the demographics and associated clinical presentations of gynecological pathologies. It compiles state of the art information on the subject in 20 chapters contributed by more than 50 experts in obstetric anesthesia. The main objective of this volume is to inform and update readers about the different aspects essential to the practice of anesthesia and analgesia during pregnancy, labor, cesarean section and puerperium. The contents also include information about the management of pregnant women with different pathologies and high-risk pregnancies. The authors believe that it is essential for all anesthesiologists to be aware of the latest advances and well-contrasted scientific evidence that will allow them to carry out their usual clinical activity. The volume approaches the subject in a clear and didactic way for the benefit of all professionals involved in this field, including anesthesiologists, gynecologists, obstetricians, surgeons, clinicians and allied healthcare service providers.