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Query: UMLS:C0085584 (encephalopathy)
 18,178 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

We report a case of a young woman presenting with profound depression of consciousness and intra-uterine death in the late stages of an unbooked pregnancy. She proceeded to develop features of cardiovascular, renal, hepatic and haematological failures. The patient was challenging to manage in view of uncertainty regarding the underlying cause, and required multidisciplinary consultation. A diagnosis was subsequently made of posterior reversible encephalopathy syndrome in the context of pre-eclampsia. We review the typical presentation and wide-ranging associations of this recently described clinico-neuroradiological syndrome, and look at how appropriate management may lead to rapid resolution of its often life-threatening features. We highlight the importance to anaesthetists and critical care physicians of recognising even atypical cases such as this one in view of key differences in management from similarly presenting conditions.
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PMID:Posterior reversible encephalopathy syndrome: a report of a case with atypical features. 1871 59

Abnormal liver function tests occur in 3 - 5% of pregnancies for different reasons. Apart from pre-existing liver diseases liver diseases occurring during pregnancy, such as gall stones or viral hepatitis, most liver dysfunctions in pregnancy are caused by one of the five pregnancy-related liver diseases. The five known pregnancy-related liver diseases can be classified in two main categories depending on their association with or without preeclampsia. The preeclampsia-associated liver diseases are the preeclampsia itself, the HELLP-syndrome ("Hemolysis" (H), "Elevated Liver Tests" (EL), "Low Platelet Count" (LP)) and the acute fatty liver of pregnancy. Hyperemesis gravidarum and intrahepatic cholestasis of pregnancy are not associated with preeclampsia. Hyperemesis gravidarum is characterised by intractable vomiting in the first trimester of pregnancy. 50% of patients with this condition have liver dysfunction. Intrahepatic cholestasis of pregnancy presents with pruritus and elevated bile acids in the second half of pregnancy. Patients have often mild jaundice and highly elevated liver enzymes. Treatment of choice is ursodeoxycholic acid to relieve the mother's symptoms. With this condition mainly the fetus is at risk. Severe preeclampsia is the most common cause of liver dysfunction in pregnancy, and is in some cases further complicated by HELLP syndrome. The prompt delivery of the baby is the only definitive therapy. However, many life-threatening maternal complications like liver hematoma or rupture and abruptio placentae can occur. Acute fatty liver of pregnancy is also a severe illness occuring mostly in the third trimester; microvesicular fat deposition in the liver can cause liver failure with coagulopathy and encephalopathy. Only the immediate delivery of the fetus can save mother and child.
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PMID:[Liver diseases in pregnancy]. 1894 56

We report the case of an eighteen year-old pregnant female with preeclampsia and florid signs and symptoms of posterior reversible encephalopathy syndrome (PRES) in whom intracerebral hemorrhage was evidenced following delivery. Management included blood pressure control, external ventricular drainage and lumboperitoneal shunt. To our knowledge this is the first report of intracranial hemorrhage occurring concurrently with peripartum acute PRES. This case was successfully treated with good outcome upon conclusion of management, thus making awareness of this potentially fatal complication and its suggested management for successful outcome necessary for neurosurgeons, neurologists and intensivists alike.
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PMID:Hemorrhagic stroke with intraventricular extension in the setting of acute posterior reversible encephalopathy syndrome (PRES): case report. 1926 34

This article reviews 4 categories of hypertensive disorders of pregnancy: chronic hypertension, gestational hypertension, preeclampsia, and preeclampsia superimposed on chronic hypertension. It focuses on the diagnosis and management of preeclampsia with emphasis on the pharmacologic management of blood pressure during pregnancy. Preeclampsia is one of the most common medical disorders affecting pregnancy, with significant maternal and fetal morbidity and mortality. The most serious maternal complications of preeclampsia include intracerebral hemorrhage, eclampsia, and renal failure, as well as hemolysis, elevated liver enzymes, and low platelets (HELLP) syndrome and posterior reversible encephalopathy syndrome (PRES).
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PMID:Hypertensive disorders of pregnancy. 1933 64

Neurological findings in preeclampsia fulfill diagnostic criteria of posterior reversible encephalopathy syndrome (PRES), which is related to cerebral autoregulation impairment associated with high blood pressure. In preeclampsia, PRES may occur without a significant increase in blood pressure. Our aim was to investigate the association between ophthalmic artery resistive index (OARI) and clinical evidence of PRES, defined as the presence of headache and blurred vision, in patients with severe preeclampsia. OARI and main clinical and laboratory parameters were obtained in 112 patients with severe preeclampsia. Differences in these parameters were analyzed in the function of clinical evidence of PRES with a 2-sample t test. The area under receiver operating characteristic curve for each of these parameters in the function of clinical evidence of PRES was obtained. Logistic regression models were established with parameters categorized by cutoff points obtained in receiver operating characteristic curves. Among 112 patients with severe preeclampsia, 46 (41%) presented clinical evidence of PRES. These patients presented lower OARI (P<0.0001), higher mean blood pressure at admission (P<0.0001), higher mean blood pressure elevation after the first trimester (P<0.0001), and higher lactate dehydrogenase (P<0.0001) than those without clinical evidence of PRES. OARI presented an area under receiver operating characteristic curve of 0.810+/-0.039 (95% CI: 0.742 to 0.895; P<0.0001). OARI <0.56 was associated with clinical evidence of PRES, with an odds ratio of 12.67 (95% CI: 4.08 to 39.39; P<0.0001). Data suggest that OARI is a relevant biomarker of PRES in severe preeclampsia.
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PMID:Ophthalmic artery-resistive index and evidence of overperfusion-related encephalopathy in severe preeclampsia. 1994 84

We investigated antepartum and intrapartum risk factors for neonatal encephalopathy (NE) in term infants. We performed a case-controlled study in which characteristics of singleton term infants who developed NE from 1993 to 2003 were compared with those of randomly selected controls. Antenatal risk factors (including obesity, diabetes, thyroid dysfunction, previous cesarean delivery, preeclampsia, fetal growth restriction, abnormal amniotic fluid volume, and abnormal fetal heart rate [FHR] tracing before labor) and intrapartum risk factors (acute intrapartum sentinel events and other risk factors like suspicious or ominous FHR tracing and clinical chorioamnionitis) were related to occurrence of NE. From the study cohort of 30,580 infants, 27 (0.09%) developed NE and were compared with 100 controls. Neonates with encephalopathy had more frequent antepartum (74% versus 18%, P < 0.001) and intrapartum (67% versus 19%, P < 0.001) risk factors, including acute intrapartum events (33% versus 2%, P < 0.001), than controls. On the whole, 26% of cases of NE had only antepartum risk factors, 22% had only intrapartum risk factors, and 44% had a combination of the two. In 2/27 (7%) cases, no risk factors were recognizable. In conclusion, 44% of cases of NE following term deliveries can be attributed to a combination of antepartum and intrapartum variables.
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PMID:Antepartum and intrapartum risk factors for neonatal encephalopathy at term. 2022 71

Preeclampsia (PE) is associated with 3 main risks for the fetus: perinatal death, intrauterine growth restriction (IUGR), preterm birth. Perinatal mortality is increased in infants with IUGR or asphyxia. Conversely, mortality and morbidity associated with preterm birth are not altered by PE without IUGR or asphyxia. Very preterm infant with IUGR are exposed to high risk of prolonged respiratory insufficiency. Neurological complications of prematurity are not more frequent in infants born to mothers with PE. Nevertheless birth asphyxia, (i.e. placental abruption) is associated with impaired neurological out-come especially in infants with neonatal encephalopathy. Long term outcome of infants born to mothers with PE is strongly correlated to gestational age. IUGR increases the risk of hypertension and metabolic syndrome in adulthood. Acute fatty liver of pregnancy can by caused by a fetal fatty-acid oxidation disorder.
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PMID:[Prognosis in newborns after mother's preeclampsia]. 2047 88

Posterior reversible encephalopathy syndrome (PRES) is a rare-and not always reversible-neurological complication associated with pre-eclampsia. We report a highly unusual case of puerperal PRES occurring in the context of pre-eclampsia arising from a previously undiagnosed triploid pregnancy at 16 weeks gestation.
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PMID:Posterior reversible encephalopathy syndrome in a patient with HELLP syndrome complicating a triploid pregnancy. 2063 10

This review considers the 250+ papers concerning the association of the angiotensin converting enzyme (ACE) gene insertion/deletion polymorphism (rs1799752) and various disease conditions published in 2009. The deletion allele occurs in approximately 55% of the population and is associated with increased activity of the ACE enzyme. It might be predicted that the D allele, therefore, might be associated with pathologies involving increased activity of the renin-angiotensin system. The D allele was seen to be associated with an increased risk of hypertension, pre-eclampsia, heart failure, cerebral infarct, diabetic nephropathy, encephalopathy, asthma, severe hypoglycaemia in diabetes, gastric cancer (in Caucasians) and poor prognosis following kidney transplant. On the positive side, the D allele appears to offer protection against schizophrenia and chronic periodontitis and confers greater up-per-body strength in old age. The I allele, meanwhile, offers improved endurance/athletic performance and aerobic capacity as determined by lung function tests, although it does increase the risk of oral squamous cell carcinoma and obstructive sleep apnoea in hypertensives.
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PMID:Implications of the angiotensin converting enzyme gene insertion/deletion polymorphism in health and disease: a snapshot review. 2153 87

Pre-eclampsia and eclampsia are well-known causative factors of posterior reversible encephalopathy syndrome (PRES). There are only a few reported cases of antepartum PRES. We report a 25-year-old primigravid woman who presented with eight months of amenorrhoea and an abrupt onset of eclampsia associated with a history of a fall. A computed tomography scan ruled out intracranial haemorrhage and PRES was diagnosed. She responded well to supportive care, labour was induced and maternal and neonatal outcomes were good. Antepartum PRES poses different challenges to those of PRES in non-obstetric or postpartum patients, because of the additional management aspects required to ensure foetal wellbeing. We were posed with a difficult decision about the disadvantages of caesarean section versus those of vaginal delivery in our patient.
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PMID:A rare case of antepartum posterior reversible encephalopathy syndrome. 2167 75


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