martes, 25 de octubre de 2016

Hígado y embarazo / Liver and pregnancy

Octubre 13, 2016. No. 2477






Actualización en el diagnóstico y manejo del daño hepático agudo grave en el embarazo
Causes and management of severe acute liver damage during pregnancy.
Rev Med Chil. 2015 May;143(5):627-36. doi: 10.4067/S0034-98872015000500011.
Abstract
Abnormalities in liver function tests appear in 3% of pregnancies. Severe acute liver damage can be an exclusive condition of pregnancy(dependent or independent of pre-eclampsia) or a concomitant disease. HELLP syndrome and acute fatty liver of pregnancy are the most severeliver diseases associated with pregnancy. Both appear during the third trimester and have a similar clinical presentation. Acute fatty liver may be associated with hypoglycemia and HELLP syndrome is closely linked with pre-eclampsia. Among concomitant conditions, fulminant acutehepatitis caused by medications or virus is the most severe disease. Its clinical presentation may be hyper-acute with neurological involvement and severe coagulation disorders. It has a high mortality and patients should be transplanted. Fulminant hepatic failure caused by acetaminophen overdose can be managed with n-acetyl cysteine. Because of the high fetal mortality rate, the gestational age at diagnosis is crucial.
Avances en la comprensión y manejo de las enfermedades hepáticas durante el embarazo. Revisión
Advances in understanding and treating liver diseases during pregnancy: A review.
World J Gastroenterol. 2015 May 7;21(17):5183-90. doi: 10.3748/wjg.v21.i17.5183.
Abstract
Liver disease in pregnancy is rare but pregnancy-related liver diseases may cause threat to fetal and maternal survival. It includes pre-eclampsia; eclampsia; haemolysis, elevated liver enzymes, and low platelets syndrome; acute fatty liver of pregnancy; hyperemesis gravidarum; and intrahepatic cholestasis of pregnancy. Recent basic researches have shown the various etiologies involved in this disease entity. With these advances, rapid diagnosis is essential for severe cases since the decision of immediate delivery is important for maternal and fetal survival. The other therapeutic options have also been shown in recent reports based on the clinical trials and cooperation and information sharing between hepatologist and gynecologist is important for timely therapeutic intervention. Therefore, correct understandings of diseases and differential diagnosis from the pre-existing and co-incidental liver diseases during the pregnancy will help to achieve better prognosis. Therefore, here wereview and summarized recent advances in understanding the etiologies, clinical courses and management of liver disease in pregnancy. This information will contribute to physicians for diagnosis of disease and optimum management of patients.
KEYWORDS: Acute fatty liver of pregnancy; Haemolysis elevated liver enzymes; Hyperemesis gravidarum; Intrahepatic cholestasis of pregnancy; Liverinjury; Low platelets; Pregnancy
Enfermedades hepáticas relacionadas al embarazo
Pregnancy-related liver disorders.
J Clin Exp Hepatol. 2014 Jun;4(2):151-62. doi: 10.1016/j.jceh.2013.03.220. Epub 2013 Mar 16.
Abstract
Pregnancy-related liver disorders accounted for 8% of all maternal deaths at our center from 1999 to 2011. Of the three pregnancy-related liverdisorders (acute fatty liver of pregnancy (AFLP), HELLP (Hemolysis, elevated liver enzymes, low platelets) syndrome and pre-eclamptic liverdysfunction, which can lead to adverse maternal and fetal outcome, AFLP is most typically under - diagnosed. Risk of maternal death can be minimised by timely recognition and early/aggressive multi-specialty management of these conditions. Urgent termination of pregnancy remains the cornerstone of therapy for some of these life threatening disorders, but recent advancements in our understanding help us in better overall management of these patients. This review focuses on various aspects of pregnancy-related liver disorders.

XIII Congreso Virtual Mexicano de Anestesiología
Octubre a Diciembre 2016

Información / Information
L Congreso Mexicano de Anestesiología
Noviembre 2-6, 2016
17h World Congress of Anaesthesiologists, WFSA
Sep 6-11, 2020
Prague, Czech Republic
Like us on Facebook   Follow us on Twitter   Find us on Google+   View our videos on YouTube 
Anestesiología y Medicina del Dolor

52 664 6848905

Copyright © 2015

Más de hígado y embarazo / More on liver and pregnancy

Octubre 14, 2016. No. 2478






Enfermedades hepáticas y embarazo. Patologías exclusivas de la embarazada
Liver diseases in pregnancy: diseases unique to pregnancy.
Abstract
Pregnancy is a special clinical state with several normal physiological changes that influence body organs including the liver. Liver disease can cause significant morbidity and mortality in both pregnant women and their infants. This review summarizes liver diseases that are unique topregnancy. We discuss clinical conditions that are seen only in pregnant women and involve the liver; from Hyperemesis Gravidarum that happens in 1 out of 200 pregnancies and Intrahepatic Cholestasis of Pregnancy (0.5%-1.5% prevalence), to the more frequent condition of preeclampsia (10% prevalence) and its severe form; hemolysis, elevated liver enzymes, and a low platelet count syndrome (12% of pregnancies with preeclampsia), to the rare entity of Acute Fatty Liver of Pregnancy (incidence of 1 per 7270 to 13000 deliveries). Although pathogeneses behind the development of these aliments are not fully understood, theories have been proposed. Some propose the special physiological changes that accompany pregnancy as a precipitant. Others suggest a constellation of factors including both the mother and her fetus that come together to trigger those unique conditions. Reaching a timely and accurate diagnosis of such conditions can be challenging. The timing of the condition in relation toward which trimester it starts at is a key. Accurate diagnosis can be made using specific clinical findings and blood tests. Some entities have well-defined criteria that help not only in making the diagnosis, but also in classifying the disease according to its severity. Management of these conditions range from simple medical remedies to measures such as immediate termination of the pregnancy. In specific conditions, it is prudent to have expert obstetric and medical specialists teaming up to help improve the outcomes.
KEYWORDS: Acute fatty liver; Eclampsia; Hemolysis, elevated liver enzymes, and a low platelet count; Hyperemesis gravidarum; Intrahepatic cholestasis;Liver; Preeclampsia; Pregnancy
Revisión clínica: Enfermedades graves y embarazo
Clinical review: Special populations--critical illness and pregnancy.
Crit Care. 2011 Aug 12;15(4):227. doi: 10.1186/cc10256.
Abstract
Critical illness is an uncommon but potentially devastating complication of pregnancy. The majority of pregnancy-related critical care admissions occur postpartum. Antenatally, the pregnant patient is more likely to be admitted with diseases non-specific to pregnancy, such as pneumonia.Pregnancy-specific diseases resulting in ICU admission include obstetric hemorrhage, pre-eclampsia/eclampsia, HELLP (hemolysis, elevatedliver enzymes, and low platelet count) syndrome, amniotic fluid embolus syndrome, acute fatty liver of pregnancy, and peripartum cardiomyopathy. Alternatively, critical illness may result from pregnancy-induced worsening of pre-existing diseases (for example, valvular heart disease, myasthenia gravis, and kidney disease). Pregnancy can also predispose women to diseases seen in the non-pregnant population, such as acute respiratory distress syndrome (for example, pneumonia and aspiration), sepsis (for example, chorioamnionitis and pyelonephritis) or pulmonary embolism. The pregnant patient may also develop conditions co-incidental to pregnancy such as trauma or appendicitis. Hemorrhage, particularly postpartum, and hypertensive disorders of pregnancy remain the most frequent indications for ICU admission. This review focuses onpregnancy-specific causes of critical illness. Management of the critically ill mother poses special challenges. The physiologic changes inpregnancy and the presence of a second, dependent, patient may necessitate adjustments to therapeutic and supportive strategies. The fetus is generally robust despite maternal illness, and therapeutically what is good for the mother is generally good for the fetus. For pregnancy-induced critical illnesses, delivery of the fetus helps resolve the disease process. Prognosis following pregnancy-related critical illness is generally better than for age-matched non-pregnant critically ill patients.
Hígado graso agudo del embarazo. Actualización de los mecanismos
Acute fatty liver of pregnancy: an update on mechanisms.
Obstet Med. 2011 Sep;4(3):99-103. doi: 10.1258/om.2011.100071. Epub 2011 Jul 4.
Abstract
Acute fatty liver of pregnancy (AFLP), characterized by hepatic microvesicular steatosis, is a sudden catastrophic illness occurring almost exclusively in the third trimester of pregnancy. Defective fatty acid oxidation in the fetus has been shown to be associated with this disease. Since the placenta has the same genetic makeup as the fetus and as AFLP patients generally recover following delivery, we hypothesized that the placenta might be involved in pathogenesis of this disease. In an animal model of hepatic microvesicular steatosis (using sodium valproate), we found that microvesicular steatosis results in mitochondrial structural alterations and oxidative stress in subcellular organelles of the liver. In placentas from patients with AFLP, we observed placental mitochondrial dysfunction and oxidative stress in subcellular organelles. In addition, defective placental fatty acid oxidation results in accumulation of toxic mediators such as arachidonic acid. Escape of these mediators into the maternal circulation might affect the maternal liver resulting in microvesicular steatosis.
KEYWORDS: complications; hepatology; maternal mortality; maternal-fetal medicine; metabolism

XIII Congreso Virtual Mexicano de Anestesiología
Octubre a Diciembre 2016

Información / Information
L Congreso Mexicano de Anestesiología
Noviembre 2-6, 2016
Like us on Facebook   Follow us on Twitter   Find us on Google+   View our videos on YouTube 
Anestesiología y Medicina del Dolor

52 664 6848905

Copyright © 2015