Richard W. Beard – författare
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3 produkter
3 produkter
E-bok
PDF, Engelska, 2012708 kr
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The first few months of any pregnancy are of supreme importance to the success of that pregnancy. This statement is so obvious as to be almost a platitude, yet it must be said that no aspect of pregnancy has been more neglected in the human than the first three months. Little is known of the morphological changes that occur at that time and our knowledge of the mechanisms that control this vital stage of pregnancy is almost non-existent. The explanation for this neglect of what is an obvious area for study is the difficulty of obtaining normal material. It is rare to have material to study from a healthy first trimester pregnancy and the study by Hertig and Rock!l) of early conception found by chance in hysterectomy speci mens must be unique. The information that we do have about early pregnancy is mostly gained from animal studies or single miscarriages in humans. Chromosomal defects are common but are not an explanation for the majority of recurrent miscarriages. Obstetricians have hypothesised many causes for this condition and have deve loped numerous metQods for treating it, but the studies have been poorly con trolled so that our understanding of the cause(s) has not advanced. Treatment of women with a history of recurrent miscarriage by paternal leuco cyte infusion (immunotherapy) may be yet another form of treatment that is hailed as a new advance only to be rejected when subject to rigorous testing.
Häftad, Engelska, 2011
565 kr
Skickas inom 10-15 vardagar
The first few months of any pregnancy are of supreme importance to the success of that pregnancy. This statement is so obvious as to be almost a platitude, yet it must be said that no aspect of pregnancy has been more neglected in the human than the first three months. Little is known of the morphological changes that occur at that time and our knowledge of the mechanisms that control this vital stage of pregnancy is almost non-existent. The explanation for this neglect of what is an obvious area for study is the difficulty of obtaining normal material. It is rare to have material to study from a healthy first trimester pregnancy and the study by Hertig and Rock!l) of early conception found by chance in hysterectomy speci mens must be unique. The information that we do have about early pregnancy is mostly gained from animal studies or single miscarriages in humans. Chromosomal defects are common but are not an explanation for the majority of recurrent miscarriages. Obstetricians have hypothesised many causes for this condition and have deve loped numerous metQods for treating it, but the studies have been poorly con trolled so that our understanding of the cause(s) has not advanced. Treatment of women with a history of recurrent miscarriage by paternal leuco cyte infusion (immunotherapy) may be yet another form of treatment that is hailed as a new advance only to be rejected when subject to rigorous testing.
E-bok
Engelska, 20131 008 kr
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Fetal Physiology and Medicine: The Basis of Perinatology, Second, Revised Edition documents many of the major advances in fetal medicine, including developmental physiology, pathology, and therapy. This book covers the most important areas of maternofetal medicine and presents different views of the critical problems of development. The various components of fetal metabolism are highlighted to demonstrate how animal experimentation has given a clear view of the interrelationship of the mother, placenta, and fetus. This text is comprised of 24 chapters; the first of which describes the use of ultrasound in antenatal diagnosis of congenital structural anomalies. This topic is followed by a discussion on sexual differentiation, acquired immunity, and endocrine changes, as well as the physiology of breathing, the control of the fetal cardiovascular system, lung maturation, fetal infections, and the effects of hypoxia on the fetal brain. This book also provides comprehensive reviews of fetal regulatory mechanisms, such as the reninangiotensin system, water metabolism, and fetal and placental hormone production. Other chapters focus on clinical applications, such as antenatal fetal heart rate monitoring, the technical aspects of fetal and uterine pressure measurements, fetal acid-base balance, and the prevention of preterm delivery. A section that explores the transition from intrauterine to extrauterine life concludes this book. This source is of great potential value to all students and practitioners of reproductive medicine.