ABSTRACT
125 placentas of women with many (5-17) deliveries and 100 control placentas (with 1-2 deliveries) were studied morphologically. It is shown that placentas of women with 1-2 deliveries retain their structure, compensatory reactions are most active in the central part of the placenta. After 5-9 deliveries hemodynamic disturbances are observed, disorganization processes are less pronounced, the level of compensatory-adaptive processes increases. Hemodynamic disturbances and structural disorganization are observed after 10-17 deliveries with pronounced compensatory processes in the peripheral parts of the placenta. Dissociated disturbance of the villi maturation are revealed after numerous deliveries.
Subject(s)
Adaptation, Physiological/physiology , Parity/physiology , Placenta/pathology , Pregnancy/physiology , Female , Hemodynamics/physiology , Homeostasis/physiology , Humans , Reference ValuesABSTRACT
Experimentally on 116 dogs it has been found that intravascular shunts of a big diameter or those controlled by means of extracorporal shunts ensure stable hemodynamic indices, approximately the initial ones. The isolated hypothermal perfusion protects, in its turn, the liver from an ischemic trauma and prolongs the safety period of the liver blood flow break to 40 minutes and more.