Introduction: Pregnancy produces multiple changes in the mother's body, most of which have been studied. However, changes in hepatosplenic circulation are not well-known. The routine use of ultrasonography and of echo-Doppler has created new possibilities for the knowledge of splenic circulation during pregnancy.
Material And Method: We studied 30 healthy pregnant women who had given their informed consent. To evaluate the morphological and hemodynamic changes that might occur in the splenic vessels during pregnancy and immediate puerperium, laboratory investigations, obstetric and hepatic ultrasonography, and hepatosplenic echo-Doppler were performed between weeks 8-12, 20-24, and 32-36, as well as in the immediate puerperium.
Results: The caliber of the vena porta and its tributaries, as well as that of its intrahepatic branches, increased while the caliber of the suprahepatic vessels slightly decreased during pregnancy. The hemodynamic changes detected by Doppler ultrasonography were: progressive flattening of the pulsed Doppler trace of the suprahepatic vessels during the course of pregnancy; a progressive reduction in mean portal velocity, which was more marked in the third trimester, and a decrease in the markers of resistance in the hepatic artery and superior mesenteric artery.
Conclusions: Hemodynamic changes in hepatosplenic circulation are produced during pregnancy that can be safely and effectively evaluated in real time by ultrasonography and echo-Doppler. Knowledge of these changes is required to evaluate these vessels in pathological conditions.
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