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Query: UMLS:C0020538 (hypertension)
 170,190 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The HELLP-syndrome is the most severe form of pre-eclampsia. Fetal and maternal life is threatened because of missing prodromi and sudden onset of complications. This case report describes the development of HELLP-syndrome in a 26 y/o G1P0 in the 26th week of gestation. Clinical signs and changes in laboratory parameters lead to the diagnosis. No hypertension was stated. The pregnancy was terminated by cesarean section resulting in a viable 900 g female newborn, who was transferred to the neonatal intensive care unit. The patient's condition stabilized quickly after the delivery, symptoms decreased within 4 days.
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PMID:[HELLP syndrome in the 26th week of pregnancy]. 845 96

A pregnant patient with a chief complaint of chest pain was found to have many characteristic findings of the HELLP syndrome. A number of pregnancy-related conditions have in common various degrees of hypertension, proteinuria, edema, hemolysis, elevated liver enzymes, and low platelets. Emergency physicians should search for clinical and laboratory signs of these conditions when evaluating ill pregnant patients.
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PMID:The HELLP syndrome: case report and review of the literature. 850 22

Two extreme cases of pregnancy-induced hypertension with puerperal HELLP syndrome are presented and the literature is review. HELLP is an English acronym, for describing the preeclamptic or eclamptic patient, who also has hemolysis, elevated hepatic enzymes and low platelets. Its etiology has not been elucidated, but it has been accepted the theory of dysequilibrium in prostanoid metabolism. It has an incidence of 5 to 15% among patients with pregnancy-induced hypertension. Maternal mortality is about 10 to 28% and neonatal of 40%. Owing to fatal complications, treatment consist of interrupting pregnancy. Point out the importance of early detection of this clinic entity, which improves maternal-fetal prognosis.
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PMID:[HELLP syndrome as manifestation of pre-eclampsia decompensation during puerperium. 2 case reports]. 907 2

This review on hypertension in pregnancy focuses mainly on the pathophysiology and prevention of pregnancy induced hypertension which, when associated with proteinuria, is usually called preeclampsia. Rather than a genuine hypertensive disease, preeclampsia is mainly a systemic endothelial disease causing activation of platelets and diffuse ischemic disorders whose most obvious clinical manifestations involve the kidney (hence the proteinuria, edema and hyperuricemia), the liver (hence the hemolytic elevated liver enzymes and low platelets, or HELLP syndrome), and the brain (hence eclamptic convulsions). Hypertension is explained by increased vascular reactivity rather than by an imbalance between vasoconstrictive and vasodilating circulating hormones. This increased reactivity is due to endothelial dysfunction with imbalance between prostacyclin and thromboxane A2 and possibly dysfunction of NO and endothelin synthesis. The aggressive substances for endothelium are thought to be of placentar origin and the cause of their release is explained by placentar ischemia related to a defect of trophoblastic invasion of the spiral arteries. The etiology of this latter defect is unknown but involves immunologic mechanisms with genetic predisposition. The only effective treatment for PIH is extraction of the baby with the whole placenta. The decision for extraction is often a very delicate obstetric problem. Antihypertensive drugs are mainly indicated in severe hypertension (> 160-100 mm Hg), with the aim of preventing cerebral hemorrhage in the mother, but have not been shown to improve fetal morbidity or mortality. Eclamptic seizures can be prevented and treated more effectively with magnesium sulfate than with diazepam or phenytoin. Prevention of preeclampsia remains the main challenge. Whereas antihypertensive drugs are ineffective, calcium supplementation and low dose aspirin have proven effective but mainly in selected populations with a relatively high incidence of preeclampsia (> 8-10%). In multiparas the selection of such a high risk population is relatively easy when at least 2 (or 1?) previous pregnancies were complicated with early preeclampsia and/or intrauterine growth retardation. In nulliparas the selection of the high-risk population is still a subject of research. The 2 most promising criteria are abnormal Doppler velocimetry of the uterine arteries at around 20 weeks of amenorrhea, and abnormally high plasma levels of beta HCG at 17 weeks of amenorrhea.
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PMID:[Hypertension and pregnancy. Diagnosis, physiopathology and treatment]. 853 76

We report a subgroup of patients with fulminant hemolysis, elevated liver enzymes, low platelet count (HELLP) syndrome, manifesting extreme elevation of aspartate aminotransferase (AST; SGOT) and lactate dehydrogenase (LDH) levels and abnormal mental status. These gravidas are at high risk for mortality. Only four patients treated by the authors over a 10-year period have had AST more than 2000 IU/L and LDH more than 3000 IU/L in the HELLP syndrome. This report is based on retrospective chart review. All patients manifested disordered mental status, jaundice, intense hemolysis, and extreme hypertension. One patient had developed multiple organ system failure, was moribund at initial perinatal consultation, and died. The three others were treated with aggressive afterload reduction and plasma infusion or plasmapheresis; two survived. Fulminant HELLP syndrome occurs rarely, but marks a group of patients at high risk for mortality. Optimal therapy is unclear; early intervention, including afterload reduction, volume expansion, and consideration of plasma infusions or plasmapheresis, is recommended.
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PMID:Severe preeclampsia with fulminant and extreme elevation of aspartate aminotransferase and lactate dehydrogenase levels: high risk for maternal death. 854 Sep 29

The epidemiologic aspects of 311 consecutive cases of hypertension associated with pregnancy seen in the Department of Obstetrics and Gynecology, Hospital de Santa Maria/University of Lisbon Medical School between January 1st 1988 and December 31st 1992, are reviewed. Seventeen cases were multifetal pregnancies. Using the criteria proposed by the American College of Obstetricians and Gynecologists the cases were classified as follows: Mild preeclampsia, 64 cases (7 in twins); severe preeclampsia 50 cases (5 in twins); chronic hypertensive disease, 81 (1 in twins); chronic hypertension with superimposed preeclampsia, 16 (all singleton pregnancies); transient hypertension of pregnancy, 84 (4 in twins); unclassified hypertension, 16 cases of singleton pregnancies. No maternal deaths occurred. The most frequent maternal complications (eclampsia, HELLP syndrome, abruptio placentae and acute renal failure) were seen in preeclampsia (mild and severe forms). Only 2 significant maternal complications were observed in the cases of superimposed preeclampsia on chronic hypertensive disease. In the other groups maternal complications were seldom seen. Excepting in transient hypertension, perinatal morbidity and mortality were frequent in all groups, specially in severe preeclampsia and superimposed preeclampsia, when the delivery occurred before 34 weeks; after that time of pregnancy there were no neonatal deaths in any of the groups and intrauterine growth retardation and fetal distress were the most common fetal complications in all groups. In the whole, uncomplicated chronic hypertension and transient hypertension of pregnancy were the clinical situations in which maternal and perinatal complications were milder and less frequent. No perinatal problems were found in the group of unclassified hypertension.
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PMID:[Hypertension associated with pregnancy. Epidemiologic study of 311 consecutive cases]. 863 80

Preeclampsia, eclampsia and the HELLP syndrome are serious pregnancy complications associated with increased maternal and perinatal mortality and morbidity. The question of subsequent pregnancy outcome in these patients is of great importance for the patient and the obstetrician. The risk of recurrence of hypertensive complications during subsequent pregnancy is related to the time of the onset and the clinical signs of hypertension during the first pregnancy. Patients having hypertensive pregnancies should be examined for chronic hypertension, kidney disease and other internal diseases. The recurrence risk is for preeclampsia between 19.5% and 25.9% and for eclampsia between 21.9% and 46.8%. Patients developing the disease early in pregnancy and with chronic hypertension are at higher risk. For the HELLP syndrome the risk of recurrence is between 3% and 5%. These patients should be considered to be at increased risk for obstetric complications in subsequent pregnancies and close perinatal care is indicated in subsequent pregnancies.
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PMID:-Obstetric prognosis after pre-eclampsia, eclampsia or HELLP syndrome-. 864 66

We report a case of preeclampsia presenting initially as a moderate hypertension, and complicated over a ten-day period by eclampsia, retinal hemorrhage, cerebral and hepatic subcapsular hematomas, HELLP syndrome, disseminated intravascular coagulation and renal failure. Fatal outcome was related to cerebral death and rupture of the liver hematoma. The case analysis points out inaccurate initial management: probable misdiagnosis of epigastric pain related to subcapsular hematoma, ineffective antihypertensive therapy, aspiration of the gastric content after benzodiazepine treatment of eclampsia, transfer of the patient without stabilisation of her clinical status.
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PMID:[Severe preeclampsia. Analysis of a case with fatal outcome]. 869 Aug 69

In 1982 Weinstein coined the term HELLP syndrome to describe a special group of pre-eclamptic women who had evidence of hemolysis, elevated liver enzymes and low platelets. The question of whether the HELLP syndrome exists as a distinct entity or is a part of a spectrum of pregnancy complications has long been a source of speculation and debate among obstetricians and internists. A review of the literature indicates that the syndrome occurs in post-partum from 20% to 30% of the cases; maternal mortality from 1% to 4% and perinatal mortality from 5% to 40%. Hypertension and proteinuria are frequently associated with HELLP syndrome, but may also be absent. The syndrome is a group of clinical and pathological manifestations resulting from an insult that leads to intravascular platelet activation (thrombocytopenia) and micro-angiopathic hemolytic anemia (elevated total bilirubin and LDH). Endothelial damage and vasospasm are responsible of hepatic hypoperfusion that results in liver damage, as indicated by a rise in circulating liver enzymes. Since natural evolution of HELLP syndrome is the disseminated intravascular coagulation (CID), the interruption of pregnancy is mandatory and irrespective of the gestational age. This is the reason of an high incidence of cesarean section. Visser and Wallemburg (1995) treated 128 pre-eclamptic patients with HELLP syndrome with volume expansion and pharmacologic vasodilatation under invasive haemodynamic monitoring; they tried to delay delivery with the aim of enhancing fetal maturity. A complete reversal of HELLP occurred in 43% of patients. Further investigations will be necessary to confirm this interesting experience.
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PMID:[The HELLP syndrome. Notes on its pathogenesis and treatment]. 876 57

The change in plasma concentration of human hepatocyte growth factor (hHGF) in pregnant women with HELLP (hemolysis, elevated liver enzyme and low platelets) syndrome was investigated, and the following results were obtained. (1) The plasma concentration of hHGF in pregnant women did not change with the gestational stage. (2) The plasma concentration of hHGF in pregnant women with EPH (edema, proteinuria and hypertension) gestosis was 0.19 +/- 0.07 ng/ml and did not differ greatly from that in control pregnant women. (3) The plasma concentration of hHGF in pregnant women with HELLP syndrome was 1.79 +/- 0.35 ng/ml; it was increased prominently compared to control pregnant women. (4) The plasma concentration of hHGF in pregnant women with HELLP syndrome changed parallel to the clinical symptoms of the syndrome.
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PMID:Clinical use of human hepatocyte growth factor in the early detection of HELLP syndrome. 883 69


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