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Intrahepatic cholestasis of pregnancy (ICP), also known as obstetric cholestasis, cholestasis of pregnancy, jaundice of pregnancy, and prurigo gravidarum, [1] is a medical condition in which cholestasis occurs during pregnancy. [2] It typically presents with itching and can lead to complications for both mother and fetus. [2]
Intrahepatic cholestasis of pregnancy (ICP) is an acute cause of cholestasis that manifests most commonly in the third trimester of pregnancy. [15] It affects 0.5–1.5% of pregnancies in Europe and the US and up to 28% in women of Mapuche ethnicity in Chile. [60]
Acute fatty liver of pregnancy is a rare life-threatening complication of pregnancy that occurs in the third trimester or the immediate period after delivery. [1] It is thought to be caused by a disordered metabolism of fatty acids by mitochondria in the fetus, caused by long-chain 3-hydroxyacyl-coenzyme A dehydrogenase deficiency. [2]
Obstetrical bleeding is bleeding in pregnancy that occurs before, during, or after childbirth. [4] Bleeding before childbirth is that which occurs after 24 weeks of pregnancy. [4] Bleeding may be vaginal or less commonly into the abdominal cavity. Bleeding which occurs before 24 weeks is known as early pregnancy bleeding.
Cholestatic pruritus is the sensation of itch due to nearly any liver disease, but the most commonly associated entities are primary biliary cholangitis, primary sclerosing cholangitis, obstructive choledocholithiasis, carcinoma of the bile duct, cholestasis (also see drug-induced pruritus), and chronic hepatitis C viral infection and other forms of viral hepatitis.
Maternal factors such as chorioamnionitis, cocaine abuse, intrauterine growth restriction, intrahepatic cholestasis during pregnancy, increased body mass index, lack of prenatal steroids, mode of delivery, placental abruption, pre-eclampsia, and smoking have not been consistently implicated with the development of NEC.
How ATP8B1 mutation leads to cholestasis is not yet well understood. [citation needed] PFIC-2 is caused by a variety of mutations in ABCB11, the gene that codes for the bile salt export pump, or BSEP. Retention of bile salts within hepatocytes, which are the only cell type to express BSEP, causes hepatocellular damage and cholestasis. [citation ...
If neonatal cholestasis is suspected or an infant is presenting with jaundice after two weeks of life, total and conjugated bilirubin must be measured. [10] Neonatal cholestasis is present if conjugated bilirubin value is >20% of total serum bilirubin or if serum conjugated bilirubin concentration is greater than 1.0 mg/dL. [2]