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[Physiopathology of portal hypertension (author's transl)]
Insights
This study explores the causes and effects of portal hypertension, a condition affecting blood flow through the liver. It details complications like enlarged spleen and fluid buildup, impacting systemic circulation and brain function.
Area of Science:
- Pediatric Gastroenterology
- Hepatology
- Vascular Physiology
Context:
- Portal hypertension is a complex condition with diverse etiologies.
- Understanding its physiopathology is crucial for effective management in children.
- This review synthesizes current knowledge on the causes, manifestations, and consequences of portal hypertension.
Purpose:
- To discuss the physiopathology of portal hypertension.
- To outline the pathogenesis and etiological factors, including congenital, infectious, and iatrogenic causes.
- To describe morphological forms and circulatory modifications in pediatric portal hypertension.
Summary:
- Portal hypertension pathogenesis involves congenital, acquired infectious, or iatrogenic factors, with presented frequency data.
- Morphological forms in children are outlined, emphasizing pre-hepatic blood obstruction.
- Collateral circulation, splenomegaly, ascites, and hepatic tissue alterations are key features, affecting liver oxygen perfusion.
Impact:
- Highlights the significance of the collateral network in managing portal hypertension.
- Discusses the systemic and neurological effects of portal hypertension, including brain function alterations.
- Provides a comprehensive overview for clinicians and researchers in pediatric hepatology and gastroenterology.
Abstract:
The physiopathology of portal hypertension is discussed. The pathogenesis of this affection may be of a congenital, or acquired infectious or iatrogenic nature, and the percentage frequency of each of these causes is presented. The different morphological forms of portal hypertension in children are outlined, emphasis being placed on the fact that the blood obstruction is usually pre-hepatic in location. A study of the modifications in blood circulation due to the obstruction demonstrates the importance of the collateral network, both interior and exterior to the liver. Complications of portal vein thrombi include splenomegaly, ascites, and alterations in hepatic parenchymatous tissue, producing alteration in liver oxygen perfusion. The effect on the systemic circulation and brain function are discussed.