Bővebb ismertető
PREFACE
Volume 7 of Progress in Cardiology consists of eight chapters of authoritative and timely reviews written by an international group of eminent investigators and teachers in their chosen fields, from Australia, Japan, the United Kingdom, and the United States.
In the opening chapter. Dr. Anderson presents a critical essay on cardiac embryology which serves as a platform for classification and description of cardiac malformations through understanding of both normal and abnormal development of the heart chambers and great vessels.
In the next chapter, Dr. Korner discusses the role of the autonomic nervous system in reflex cardiovascular control with special emphasis on properties of various types of receptors and their reflex effects. The circulatory responses to stress, such as hypoxia and hemorrhage, depend upon the complex interactions between direct local (myocardial and peripheral vascular) and autonomic effects.
The interrelationships of emotion, catecholamine, and electrocardiographic changes are described in Chapter 3 by Drs. Taggart, Carruthers, and Somerville. Their data are obtained from a group of normal subjects involved in a series of emotional situations such as driving racing cars, parachute jumping, and rock climbing. Increases in heart rate and catecholamine excretion are associated with abnormal S-T and T wave changes in the electrocardiogram. The electrocardiographic changes can be normalized if the subjects take cardioselective beta blocking agents prior to the study.
In Chapter 4, Drs. Heath and Kay give an informative account of the relationship between diet, drugs, and pulmonary hypertension. Ingestion of pyrrolizidine alkaloids causes hypertensive pulmonary vascular disease and pulmonary hypertension in animals, whereas the same alkaloids ingested by human subjects induce veno-occlusive disease of the liver without pulmonary vascular