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1.
Rev Esp Anestesiol Reanim (Engl Ed) ; 69(2): 114-118, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-35177366

RESUMO

Exudative retinal detachment (ERD) is a rare complication that occurring in 1% of patients with preeclampsia, its incidence is increased when it is associated with HELLP syndrome. Preeclampsia is defined by the development of arterial hypertension and proteinuira occurs after 20 weeks of gestation until postpartum. HELLP syndrome (low platelets, hemolysis and elevated liver enzymes) is a severe form of preeclampsia. ERD in preeclampsia is related to choroidal ischaemia, in the vast majority of the cases associated with hypertensive retinopathy. However, it has been proposed that the combination of hypertension with a microangiopathic hemolysis, hipercoagulability and hypoalbuminemia are the main factors contributing to the development of ERD. Its treatment includes a rapid resolution of labor to reverse ocular manifestations and prevent visual sequels. We describe the case of a pregnant woman with atypical preeclampsia who, in the postpartum of a cesarean, presented an ERD concomitantly with a HELLP syndrome.


Assuntos
Síndrome HELLP , Hipertensão , Pré-Eclâmpsia , Descolamento Retiniano , Feminino , Síndrome HELLP/diagnóstico , Síndrome HELLP/fisiopatologia , Hemólise , Humanos , Hipertensão/complicações , Gravidez , Descolamento Retiniano/etiologia
2.
Microvasc Res ; 138: 104226, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34252400

RESUMO

Pregnancy is a high-risk time for the development of different kinds of thrombotic microangiopathy (TMA). Three major syndromes including TTP (thrombotic thrombocytopenic purpura), PE/HELLP (preeclampsia/hemolysis, elevated liver function tests, low platelets), and aHUS (atypical hemolytic- uremic syndrome) should be sought in pregnancy-TMA. These severe disorders share multiple clinical features and overlaps and even the coexistence of more than one pathologic mechanism. Each of these disorders finally ends in endothelial damage and fibrin thrombi formation within the microcirculation that fragments RBCs (schystocytes), aggregates platelets, and creates ischemic injury in the targeted organs i.e.; kidney and brain. Although the mechanisms of these severe disorders have been revealed, pregnancy-related TMA still interfaces with diagnostic and therapeutic challenges. Here, we highlight the current knowledge of diagnosis and management of these complications during pregnancy.


Assuntos
Síndrome Hemolítico-Urêmica Atípica/fisiopatologia , Síndrome HELLP/fisiopatologia , Pré-Eclâmpsia/fisiopatologia , Púrpura Trombocitopênica Trombótica/fisiopatologia , Animais , Síndrome Hemolítico-Urêmica Atípica/sangue , Síndrome Hemolítico-Urêmica Atípica/diagnóstico , Síndrome Hemolítico-Urêmica Atípica/terapia , Diagnóstico Diferencial , Feminino , Síndrome HELLP/sangue , Síndrome HELLP/diagnóstico , Síndrome HELLP/terapia , Humanos , Pré-Eclâmpsia/sangue , Pré-Eclâmpsia/diagnóstico , Pré-Eclâmpsia/terapia , Valor Preditivo dos Testes , Gravidez , Prognóstico , Púrpura Trombocitopênica Trombótica/sangue , Púrpura Trombocitopênica Trombótica/diagnóstico , Púrpura Trombocitopênica Trombótica/terapia
3.
Am J Obstet Gynecol ; 225(2): 185.e1-185.e9, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-33744176

RESUMO

BACKGROUND: Dynamic cerebral autoregulation and cerebral perfusion pressure are altered in pregnancies complicated by preeclampsia compared with normotensive pregnancies, but the connections of dynamic cerebral autoregulation, cerebral perfusion pressure, and cerebral complications in preeclampsia remain unclear. OBJECTIVE: This study aimed to assess dynamic cerebral autoregulation and cerebral perfusion pressure after delivery in women with eclampsia, in women with preeclampsia both with and without severe features, and in normotensive women. STUDY DESIGN: This was a prospective case control study at a large referral hospital in Cape Town, South Africa. The recruitment of participants was done at diagnosis (cases) or at admission for delivery (controls). Transcranial Doppler examinations with continuous noninvasive blood pressure measurements and end-tidal CO2 monitoring were conducted for cases and controls after delivery. Cerebral perfusion pressure and dynamic cerebral autoregulation index were calculated, and values were compared among groups. RESULTS: We included 16 women with eclampsia, 18 women with preeclampsia with severe features, 32 women with preeclampsia without severe features, and 21 normotensive women with uncomplicated pregnancies. Dynamic cerebral autoregulation was depressed in pregnant women with eclampsia; (autoregulation index, 3.9; interquartile range, 3.1-5.2) compared with all other groups (those with preeclampsia with severe features, autoregulation index, 5.6 [interquartile range, 4.4-6.8]; those with preeclampsia without severe features, autoregulation index, 6.8 [interquartile range, 5.1-7.4]; and normotensive controls, autoregulation index, 7.1 [interquartile range, 6.1-7.9]). Pregnant women with eclampsia had increased cerebral perfusion pressure (109.5 mm Hg; interquartile range, 91.2-130.9) compared with those with preeclampsia without severe features and those with normal blood pressure (84 mm Hg [interquartile range, 73.0-122.0] and 80.0 mm Hg [interquartile range, 67.5-92.0], respectively); furthermore, there was no difference in cerebral perfusion pressure between pregnant women with eclampsia and pregnant women with preeclampsia with severe features (109.5 mm Hg [interquartile range, 91.2-130.9] vs 96.5 mm Hg [interquartile range, 75.8-110.5]). CONCLUSION: Cerebral perfusion pressure and dynamic cerebral autoregulation are altered in eclampsia and may be important in the pathophysiological pathway and constitute a therapeutic target in the prevention of cerebral complications in preeclampsia.


Assuntos
Encéfalo/irrigação sanguínea , Circulação Cerebrovascular , Eclampsia/fisiopatologia , Homeostase , Artéria Cerebral Média/diagnóstico por imagem , Pré-Eclâmpsia/fisiopatologia , Adolescente , Adulto , Pressão Arterial , Dióxido de Carbono , Estudos de Casos e Controles , Feminino , Análise de Fourier , Síndrome HELLP/etiologia , Síndrome HELLP/fisiopatologia , Hemodinâmica , Humanos , Gravidez , Estudos Prospectivos , Edema Pulmonar/etiologia , Edema Pulmonar/fisiopatologia , Insuficiência Renal/etiologia , Insuficiência Renal/fisiopatologia , Índice de Gravidade de Doença , Ultrassonografia Doppler Transcraniana , Adulto Jovem
4.
In. Fernández, Anabela. Manejo de la embarazada crítica y potencialmente grave. Montevideo, Cuadrado, 2021. p.103-113, tab.
Monografia em Espanhol | LILACS, UY-BNMED, BNUY | ID: biblio-1377606
5.
Pan Afr Med J ; 36: 78, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32774637

RESUMO

Hepatic infarction is a rare and fatal complication associated with hemolysis, elevated liver enzymes and low platelets syndrome. It can develop into fulminant liver failure and lead to death in 16% of cases. A 25-year-old woman, with unremarkable prenatal history, was sent to gynecological emergency unit for management of severe preeclampsia at 30 weeks and 4 days of pregnancy. Initial laboratory studies revealed aspartate aminotransferase at 290 U/L, alanine aminotransferase at 193 U/L and a normal value of hemoglobin, platelets and the prothrombin time. Behind the persistence of high blood pressure despite dual therapy, an emergent cesarean section was performed. However, two days after surgery, the patient accused an epigastric pain and was subsequently noted to have developed HELLP syndrome: thrombocytopenia (77000 /ul), anemia (hemoglobin 9.1 g/dL) and worsened liver injury (aspartate aminotransferase 2809 U/L; alanine aminotransferase 2502 U/L). A thoraco-abdominopelvic computed tomography (CT) was performed, which revealed massive hepatic infarction more marked on the right lobe, by showing the existence of diffuse hypodense plaques, poorly limited, not enhanced after injection, interesting all hepatic segments. The vascular permeability of the portal and subhepatic was preserved. During the surveillance, the laboratory tests worsened (hemoglobin = 4,6 g/dl; platelets count = 20000 /ul; WBC = 26000 /ul; CRP = 340 mg/l; albumin = 16 g/l, prothrombin time (PT) = 50%). The patient received antibiotics, she was transfused by red blood cells and platelets concentrates, she also received albumin with the pleural effusion drainage. The damaged hepatic areas stayed stable in control CT and the patient gradually improved here biological test, to become normal at 11 days after delivery. Hepatic infarction is an extraordinarily rare complication of preeclampsia. The diagnosis should be suspected by noting elevated liver enzymes, thrombocytopenia and typical images of hepatic infarction on abdominal CT. Early recognition and multidisciplinary management is necessary to prevent hepatic failure and death.


Assuntos
Síndrome HELLP/fisiopatologia , Infarto Hepático/diagnóstico por imagem , Pré-Eclâmpsia/fisiopatologia , Dor Abdominal , Adulto , Cesárea , Feminino , Síndrome HELLP/terapia , Infarto Hepático/etiologia , Humanos , Pré-Eclâmpsia/terapia , Gravidez , Tomografia Computadorizada por Raios X
6.
Am J Physiol Regul Integr Comp Physiol ; 319(2): R195-R202, 2020 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-32640833

RESUMO

Neutralization of FasL is linked to suppression of hypertension, placental inflammation, and endothelin system activation in an animal model of hemolysis, elevated liver enzymes, low platelets (HELLP) syndrome. During HELLP syndrome the placenta has been reported to serve as the primary source of Fas ligand (FasL), which has an impact on inflammation and hypertension during pregnancy and is dysregulated in women with severe preeclampsia and HELLP syndrome. We hypothesize that neutralization of FasL during pregnancy in an animal model of HELLP syndrome decreases inflammation and placental apoptosis, improves endothelial damage, and improves hypertension. On gestational day (GD) 12, rats were chronically infused with placental antiangiogenic factors sFlt-1 and sEng to induce HELLP syndrome. To neutralize FasL, MFL4 or FasL antibody was infused into a subset of HELLP or normal pregnant rats on GD13. IgG infusion into another group of NP and HELLP rats on GD13 was used as a control for FasL antibody, and all rats were euthanized on GD19 after blood pressure measurement. Plasma and placentas were collected to assess inflammation, apoptosis, and the degree of placental debris activation of endothelial cells. Administration of MFL4 to HELLP rats significantly decreased blood pressure compared with untreated HELLP rats and HELLP rats infused with IgG and improved the biochemistry of HELLP syndrome. Both circulating and placental FasL were significantly attenuated in response to MFL4 infusion, as were levels of placental and circulating TNFα when compared with untreated HELLP rats and HELLP rats infused with IgG. Endothelial cells exposed to placental debris and media from HP + MFL4 rats secreted significantly less endothelin-1 compared with stimulated endothelial cells from HELLP placentas. Neutralization of FasL is associated with decreased MAP and improvement in placental inflammation and endothelial damage in an animal model of HELLP syndrome.


Assuntos
Anticorpos Neutralizantes/uso terapêutico , Endotelina-1/sangue , Proteína Ligante Fas/imunologia , Síndrome HELLP/tratamento farmacológico , Placenta/fisiopatologia , Animais , Modelos Animais de Doenças , Proteína Ligante Fas/sangue , Feminino , Síndrome HELLP/sangue , Síndrome HELLP/imunologia , Síndrome HELLP/fisiopatologia , Imunoglobulina G , Placenta/imunologia , Gravidez , Ratos , Ratos Sprague-Dawley , Resultado do Tratamento , Fator de Necrose Tumoral alfa/sangue , Receptor 1 de Fatores de Crescimento do Endotélio Vascular/sangue
7.
Hipertens Riesgo Vasc ; 37(4): 152-161, 2020.
Artigo em Espanhol | MEDLINE | ID: mdl-32532671

RESUMO

INTRODUCTION: HELLP syndrome (H: hemolysis, EL: elevated liver enzymes and LP: low platelets) is a form of severe preeclampsia (PE). The syndrome can be: complete or incomplete (with three analytical criteria, or only one or two); Class i, ii or iii (according platelets < 50,000; 50,000-100,000 or > 100,000/mm3); postpartum or antepartum; with early or late installation (before or after the 34nd week of gestation). We describe and analyze characteristics and evolution observed in hypertensive pregnant patients who developed HELLP. MATERIAL AND METHODS: Retrospective cohort with observation period of two years. It included pregnant hypertensive women who developed HELLP, during the course of their hospitalization in the maternity hospital of our tertiary care hospital. RESULTS: It included 318 hypertensive pregnant women. We observed 28 HELLP. Maternal age was 25.8 ±7.2 years and gestational age at diagnosis 31 ± 1 week. Hypertension was chronic in 4 and gestational in 24; eight had presented PE in the previous pregnancy. There were 10 complete and 18 incomplete syndromes; according to platelet disease there were 3 Class i, 16 Class ii and 9 Class iii. HELLP was postpartum in 3 and antepartum in 25: 18 early and 7 late. There were 17 patients who required intensive care and 10 developed complications linked to HELLP. No maternal deaths were recorded. CONCLUSION: Presentation was variable, exhibiting mostly in gestational hypertension, antepartum and early. Incomplete form and class II thrombocytopenia were more frequent. Maternal complications were frequent but no deaths were observed.


Assuntos
Cuidados Críticos/estatística & dados numéricos , Síndrome HELLP/fisiopatologia , Hipertensão Induzida pela Gravidez/fisiopatologia , Adolescente , Adulto , Estudos de Coortes , Feminino , Humanos , Gravidez , Estudos Retrospectivos , Centros de Atenção Terciária , Trombocitopenia/epidemiologia , Trombocitopenia/etiologia , Adulto Jovem
8.
BJOG ; 127(11): 1374-1380, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32479682

RESUMO

OBJECTIVES: To investigate the incidence of clinical, ultrasonographic and biochemical findings related to pre-eclampsia (PE) in pregnancies with COVID-19, and to assess their accuracy to differentiate between PE and the PE-like features associated with COVID-19. DESIGN: A prospective, observational study. SETTING: Tertiary referral hospital. PARTICIPANTS: Singleton pregnancies with COVID-19 at >20+0  weeks. METHODS: Forty-two consecutive pregnancies were recruited and classified into two groups: severe and non-severe COVID-19, according to the occurrence of severe pneumonia. Uterine artery pulsatility index (UtAPI) and angiogenic factors (soluble fms-like tyrosine kinase-1/placental growth factor [sFlt-1/PlGF]) were assessed in women with suspected PE. MAIN OUTCOME MEASURES: Incidence of signs and symptoms related to PE, such as hypertension, proteinuria, thrombocytopenia, elevated liver enzymes, abnormal UtAPI and increased sFlt-1/PlGF. RESULTS: Thirty-four cases were classified as non-severe and 8 as severe COVID-19. Five (11.9%) women presented signs and symptoms of PE, all five being among the severe COVID-19 cases (62.5%). However, abnormal sFlt-1/PlGF and UtAPI could only be demonstrated in one case. One case remained pregnant after recovery from severe pneumonia and had a spontaneous resolution of the PE-like syndrome. CONCLUSIONS: Pregnant women with severe COVID-19 can develop a PE-like syndrome that might be distinguished from actual PE by sFlt-1/PlGF, LDH and UtAPI assessment. Healthcare providers should be aware of its existence and monitor pregnancies with suspected pre-eclampsia with caution. TWEETABLE ABSTRACT: This study shows that a pre-eclampsia-like syndrome could be present in some pregnancies with severe COVID-19.


Assuntos
Infecções por Coronavirus/fisiopatologia , Síndrome HELLP/fisiopatologia , Fator de Crescimento Placentário/metabolismo , Pneumonia Viral/fisiopatologia , Pré-Eclâmpsia/fisiopatologia , Complicações Infecciosas na Gravidez/fisiopatologia , Artéria Uterina/diagnóstico por imagem , Receptor 1 de Fatores de Crescimento do Endotélio Vascular/metabolismo , Adulto , Alanina Transaminase/metabolismo , Aspartato Aminotransferases/metabolismo , Betacoronavirus , Pressão Sanguínea , COVID-19 , Infecções por Coronavirus/complicações , Infecções por Coronavirus/metabolismo , Feminino , Síndrome HELLP/etiologia , Síndrome HELLP/metabolismo , Humanos , L-Lactato Desidrogenase/metabolismo , Pandemias , Pneumonia Viral/complicações , Pneumonia Viral/metabolismo , Pré-Eclâmpsia/etiologia , Pré-Eclâmpsia/metabolismo , Gravidez , Complicações Infecciosas na Gravidez/metabolismo , Proteinúria/etiologia , Proteinúria/fisiopatologia , Fluxo Pulsátil , SARS-CoV-2 , Índice de Gravidade de Doença , Centros de Atenção Terciária , Trombocitopenia/etiologia , Trombocitopenia/fisiopatologia
9.
BMC Womens Health ; 20(1): 41, 2020 03 04.
Artigo em Inglês | MEDLINE | ID: mdl-32131802

RESUMO

BACKGROUND: Hypertensive disorders of pregnancy (HDP), such as preeclampsia (PE) or the Hemolysis Elevated Liver enzymes and Low Platelets (HELLP) syndrome are associated with elevated cardiovascular disease (CVD) risks, but standardized prevention guidelines after such pregnancies are lacking. Hypertension is the first emerging risk factor after PE/HELLP pregnancies and is a major risk factor for CVD. Hypertension before the age of 55 years may lead to various manifestations of end-organ damage at relatively young age. Therefore, timely treatment of elevated blood pressure is mandatory, but many of these high-risk women have long-term undetected and untreated hypertension before adequate treatment is initiated. AIM: The aim of our study is to assess whether home blood pressure monitoring (HBPM) in women with a previous PE/HELLP pregnancy is a valuable tool for the early detection of hypertension. METHODS: Women with a history of both early and late PE/HELLP syndrome aged 40-60 years are invited to participate. Patients with a history of CVD, known hypertension and/or use of antihypertensive medication are excluded. Women are randomized between HPBM or 'usual care'. The primary outcome is feasibility and usability of HBPM after 1 year of follow-up. Secondary outcomes will be the effectiveness of HPBM to detect hypertension, the efficacy of BP treatment, quality of life, health-related symptoms, work ability, and life-style behaviour. The results of this study will provide better strategies for timely detection and prevention of hypertension in women after PE/HELLP. TRIAL REGISTRATION: ClinicalTrials.gov, NCT03228082. Registered June 15, 2017.


Assuntos
Monitorização Ambulatorial da Pressão Arterial , Pressão Sanguínea/fisiologia , Síndrome HELLP/fisiopatologia , Hipertensão/prevenção & controle , Pré-Eclâmpsia/diagnóstico , Qualidade de Vida/psicologia , Adulto , Fatores Etários , Estudos de Viabilidade , Feminino , Seguimentos , Humanos , Hipertensão/complicações , Pessoa de Meia-Idade , Gravidez , Complicações na Gravidez , Resultado da Gravidez
10.
Pregnancy Hypertens ; 19: 94-99, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31927326

RESUMO

OBJECTIVE: To determine the prevalence of acute kidney injury (AKI), placental abruption and postpartum hemorrhage in patients with preeclampsia or HELLP syndrome. STUDY DESIGN: A retrospective study of patients with preeclampsia or HELLP syndrome treated at the University of Mississippi Medical Center from January 2000 through December 2010. MAIN OUTCOME MEASURES: Relationships among the obstetric complications of placental abruption, postpartum hemorrhage, and AKI (serum creatinine >107 µmol/L) of women with preeclampsia or HELLP syndrome. Additional analysis was undertaken to explore if there was a correlation between postpartum hemorrhage/placental abruption and the severity of HELLP syndrome according to the Mississippi classification system. RESULTS: Data from 1276 women over 11 years were included in the analysis. 67 of 466 patients (14.4%) with HELLP syndrome and 38 of 810 preeclampsia patients (4.7%) met criteria for AKI. Women with either placental abruption or postpartum hemorrhage had statistically significant increased odds of also having AKI (p < 0.01). Women with HELLP and AKI were also more likely to experience either placental abruption or postpartum hemorrhage. Women with Class 1 HELLP with placental abruption or postpartum hemorrhage were also more likely to have AKI than women with preeclampsia. CONCLUSION: HELLP syndrome, AKI and placental abruption or postpartum hemorrhage appear to be interrelated. AKI occurs more frequently in women with HELLP syndrome with or without associated postpartum hemorrhage and placental abruption.


Assuntos
Injúria Renal Aguda/fisiopatologia , Síndrome HELLP/fisiopatologia , Hemólise/fisiologia , Pré-Eclâmpsia/fisiopatologia , Descolamento Prematuro da Placenta/fisiopatologia , Adulto , Alanina Transaminase/sangue , Aspartato Aminotransferases/sangue , Creatinina/sangue , Feminino , Síndrome HELLP/classificação , Humanos , Hemorragia Pós-Parto/fisiopatologia , Gravidez , Nascimento Prematuro , Estudos Retrospectivos , Adulto Jovem
11.
Clin Obstet Gynecol ; 63(1): 165-174, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31770122

RESUMO

In cases of preeclampsia with severe features and hemolysis, elevated liver enzymes, and low platelet (HELLP) syndrome, hepatic complications portend significant short-term and long-term maternal health implications. In this section, we will discuss the physiology of normal hepatic function in pregnancy, the pathophysiology of the abnormalities noted in hepatic function during the process of preeclampsia development, the diagnosis and management of preeclampsia, imitators of HELLP syndrome, the utility of various biomarkers in the diagnosis and prognosis of the preeclampsia disease spectrum, possible underlying genetic factors predisposing women to developing hepatic abnormalities with preeclampsia, and finally prognosis and management of a subcapsular hematoma.


Assuntos
Síndrome HELLP/fisiopatologia , Hepatopatias/etiologia , Pré-Eclâmpsia/fisiopatologia , Biomarcadores/sangue , Diagnóstico Diferencial , Feminino , Síndrome HELLP/diagnóstico , Síndrome HELLP/terapia , Humanos , Hepatopatias/diagnóstico , Hepatopatias/fisiopatologia , Hepatopatias/terapia , Pré-Eclâmpsia/diagnóstico , Pré-Eclâmpsia/terapia , Gravidez
12.
Pregnancy Hypertens ; 19: 37-43, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31877439

RESUMO

AIM: This study aims to determine, based on existing data, whether the mechanism resulting in liver dysfunction in HELLP syndrome resembles that in Sinusoidal Obstruction Syndrome (SOS). BACKGROUND: HELLP syndrome is a serious pregnancy disorder with high maternal and perinatal morbidity and mortality rates. Because of poor insight in its pathophysiology, particularly that of the liver involvement, clinical management is limited to symptomatic treatment, often followed by termination of pregnancy. SOS is a rare, potentially life-threatening complication of radio and/ or chemotherapy in the preparation of hematopoietic cell transplantation. The etiology of liver dysfunction in SOS is - unlike that in HELLP syndrome - better-understood and seems to be initiated by direct toxic damage and demise of endothelial cells, causing hepatic sinusoidal obstruction and ischemia. METHODS: We searched Pubmed, Embase and Cochrane for reports on the etiology of HELLP and SOS. This yielded 73 articles, with 14 additional reports from the references listed in these articles. RESULTS: The dysfunctional placenta in women developing HELLP initiates a cascade of events that eventually results in liver dysfunction. The placenta releases, besides anti-angiogenetic factors, also necrotic debris and cell-free DNA, a mixture that not only induces systemic endothelial dysfunction as in preeclampsia, but also a systemic inflammatory response. The latter aggravates the endothelio-toxic effects in the systemic cardiovascular bed, amplifying the already increased pro-thrombotic conditions. Particularly in microcirculations with extremely low shear forces, such as in the hepatic sinusoids, this will facilitate microthrombi formation and fibrin deposition eventually resulting in obstruction of the sinusoids similar as in SOS. The latter causes ischemic damage and progressive demise of hepatocytes. CONCLUSION: The available information supports the concept that the liver damage in HELLP and SOS results from sinusoidal ischemia, presumably resulting from partially overlapping pathophysiological mechanisms.


Assuntos
Síndrome HELLP/fisiopatologia , Hepatopatia Veno-Oclusiva/fisiopatologia , Fígado/fisiopatologia , Proteínas do Sistema Complemento/metabolismo , Endotélio Vascular/fisiopatologia , Feminino , Fibrina/metabolismo , Humanos , Isquemia/fisiopatologia , Fígado/irrigação sanguínea , Fígado/patologia , Placenta/patologia , Placenta/fisiopatologia , Gravidez , Fluxo Sanguíneo Regional/fisiologia , Microangiopatias Trombóticas/fisiopatologia
13.
Eur J Obstet Gynecol Reprod Biol ; 243: 93-96, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31678761

RESUMO

OBJECTIVES: Angiogenic profiling with the use of sFlt-1/PlGF ratio (soluble fms-like tyrosine kinase-1/placental growth factor) can be helpful to characterize women with signs of impending preeclampsia (PE). However, little is known about the angiogenic profile of pregnancies complicated by HELLP syndrome. The aim of this study was to examine the relationship of angiogenic profiles in cases of HELLP syndrome with and without classical signs of preeclampsia. STUDY DESIGN: The angiogenic profile of pregnant women with singleton gestation and isolated PE (group 1), PE associated with HELLP syndrome (group 2), and isolated HELLP syndrome (group 3) from 01/2011 to 03/2018, were compared. To overcome gestational age dependent angiogenic behavior, cases (group 3) were matched 1:2 with cases from group 1 and 2. Matching criteria was gestational age (±1 week). PE and HELLP syndrome were defined according to the international Society for the Study of Hypertension in Pregnancy (ISSHP) statement 2014. RESULTS: During the observational period, 244 women could be included in the study. Of those, 237 (97.1%) were diagnosed with PE. In 42 cases (17.2%) PE was associated with HELLP syndrome while 7 (2.9%) patients were diagnosed with isolated HELLP syndrome. Angiogenic profiles in terms of sFlt-1/PlGF ratios differed significantly between the three groups, showing highest levels in group 2 (PE/HELLP) while cases with isolated HELLP demonstrated the lowest ratios and sFlt-1 values (p = 0.01). CONCLUSION: We conclude that isolated HELLP syndrome is rare and seems to be a particular entity expressing a different angiogenic behaviour compared to classical PE or PE associated with HELLP syndrome.


Assuntos
Síndrome HELLP/metabolismo , Hipertensão Induzida pela Gravidez/metabolismo , Fator de Crescimento Placentário/metabolismo , Pré-Eclâmpsia/metabolismo , Proteinúria/metabolismo , Receptor 1 de Fatores de Crescimento do Endotélio Vascular/metabolismo , Adolescente , Adulto , Biomarcadores/metabolismo , Pressão Sanguínea , Feminino , Síndrome HELLP/fisiopatologia , Humanos , Hipertensão Induzida pela Gravidez/fisiopatologia , Pessoa de Meia-Idade , Pré-Eclâmpsia/fisiopatologia , Gravidez , Adulto Jovem
15.
Pregnancy Hypertens ; 18: 42-48, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31494464

RESUMO

AIM: With this review we try to unravel if placenta-derived factors are able to initiate liver sinusoidal endothelial cells (LSEC) decay in HELLP syndrome and eventually cause the development of sinusoidal obstruction syndrome (SOS). BACKGROUND: Haemolysis, Elevated Liver enzymes and Low Platelets (HELLP) syndrome is a severe complication of pregnancy. It is characterized by elevated liver enzymes, low platelet count and haemolytic anaemia. The risk of developing HELLP syndrome within a pregnancy is 0.1-0.8%. The mortality rate among women with HELLP syndrome is 0-24% and the perinatal death goes up to 37%. The aetiology of HELLP syndrome is not fully understood but the pathogenesis of the liver pathology in the HELLP syndrome resembles that of a SOS with endothelial damage of the LSECs which ultimately leads to liver failure. OBJECTIVES: We hypothesize that placenta derived factors cause LSEC damage and thereby liver dysfunction. METHODS: We searched in the PubMed database for relevant articles about placenta derived factors involved in endothelial activation especially in the liver. We yielded eventually 55 relevant articles. RESULTS: Based on this literature search we associate that in HELLP syndrome there is an increase of soluble fms-like tyrosine kinase (sFlt1), vascular endothelial growth factor (VEGFR), soluble endoglin (sEng), galectin-1 (Gal-1), endothelin-1 (ET-1), Angiopoietin 2 (Angs-2), Asymmetric dimethylarginine (ADMA), activin B, inhibin A, Fas ligand (FasL) and heat shock protein 70 (Hsp70). CONCLUSION: We assume that these eleven increased placenta derived factors are responsible for LSEC damage which eventually leads to liver failure. This concept shows a possible design of the complicated pathophysiology in HELLP syndrome. However further research is required.


Assuntos
Síndrome HELLP/fisiopatologia , Falência Hepática/fisiopatologia , Placenta/metabolismo , Células Endoteliais/metabolismo , Feminino , Humanos , Falência Hepática/complicações , Gravidez
17.
J Hypertens ; 37(7): 1467-1474, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-31145714

RESUMO

OBJECTIVE: Hypertensive disorders in pregnancy pose a major burden during pregnancy and are also associated with an increased risk for hypertension later in life. Plasma creatine kinase activity is identified in the general population as an independent risk factor for hypertension. We hypothesize that plasma creatine kinase activity is similarly associated with blood pressure during pregnancy. METHODS: Women who participated in the 'Amsterdam Born Children and their Development-study' were eligible for the current study. The associations between plasma creatine kinase activity and blood pressure measurements during pregnancy, and between plasma creatine kinase activity and hypertensive disorders in pregnancy (gestational hypertension, HELLP, preeclampsia and eclampsia) were evaluated using multiple linear regression and logistic regression models. RESULTS: In 3619 pregnant women, plasma creatine kinase activity was significantly associated with all blood pressure outcomes. This was most pronounced for the mean SBP throughout pregnancy, with a regression coefficient of 3.48 mmHg (CI 1.67-5.28, P < 0.001) per 1-unit logCK. With respect to the hypertensive disorders in pregnancy, we found a significant association between severe gestational hypertension diagnosed before 34 weeks of gestation (OR 9.16, CI 1.32-63.86, P = 0.025) per 1-unit logCK activity. HELLP and preeclampsia were not significantly associated. CONCLUSION: Our data show that plasma creatine kinase activity measured in early pregnancy is associated with blood pressure during pregnancy and associated with severe gestational hypertension diagnosed before 34 weeks of gestation, whereas no significant association was found between creatine kinase and other hypertensive disorders in pregnancy.


Assuntos
Pressão Sanguínea , Creatina Quinase/sangue , Hipertensão Induzida pela Gravidez/fisiopatologia , Pré-Eclâmpsia/fisiopatologia , Adulto , Índice de Massa Corporal , Eclampsia , Feminino , Síndrome HELLP/fisiopatologia , Humanos , Modelos Logísticos , Gravidez , Complicações Cardiovasculares na Gravidez/fisiopatologia , Resultado da Gravidez , Análise de Regressão , Fatores de Risco
18.
Ann Hepatol ; 18(4): 553-562, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31126882

RESUMO

Liver disease during pregnancy is more common than expected and may require specialized intervention. It is important to determine if changes in liver physiology may develop into liver disease, to assure early diagnosis. For adequate surveillance of mother-fetus health outcome, liver disease during pregnancy might require intervention from a hepatologist. Liver diseases have a prevalence of at least 3% of all pregnancies in developed countries, and they are classified into two main categories: related to pregnancy; and those non- related that are present de novo or are preexisting chronic liver diseases. In this review we describe and discuss the main characteristics of those liver diseases associated with pregnancy and only some frequent pre-existing and co-incidental in pregnancy are considered. In addition to the literature review, we compiled the data of liver disease occurring during pregnancies attended at the National Institute of Perinatology in Mexico City in a three-year period. In our tertiary referral women hospital, liver disease was present in 11.24 % of all pregnancies. Associated liver disease was found in 10.8% of all pregnancies, mainly those related to pre-eclampsia (9.9% of pregnancies). Only 0.56% was due to liver disease that was co-incidental or preexisting; the acute or chronic hepatitis C virus was the most frequent in this group (0.12%). When managing pregnancy in referral hospitals in Latin America, it is important to discard liver alterations early for adequate follow up of the disease and to prevent adverse consequences for the mother and child.


Assuntos
Hepatopatias/terapia , Complicações na Gravidez/terapia , Síndrome de Budd-Chiari/epidemiologia , Síndrome de Budd-Chiari/fisiopatologia , Síndrome de Budd-Chiari/terapia , Colestase Intra-Hepática/epidemiologia , Colestase Intra-Hepática/fisiopatologia , Colestase Intra-Hepática/terapia , Fígado Gorduroso/epidemiologia , Fígado Gorduroso/fisiopatologia , Fígado Gorduroso/terapia , Feminino , Síndrome HELLP/epidemiologia , Síndrome HELLP/fisiopatologia , Síndrome HELLP/terapia , Hepatite Viral Humana/epidemiologia , Hepatite Viral Humana/fisiopatologia , Hepatite Viral Humana/terapia , Degeneração Hepatolenticular/epidemiologia , Degeneração Hepatolenticular/fisiopatologia , Degeneração Hepatolenticular/terapia , Humanos , Hiperêmese Gravídica/epidemiologia , Hiperêmese Gravídica/fisiopatologia , Hiperêmese Gravídica/terapia , Hipertensão Portal/epidemiologia , Hipertensão Portal/fisiopatologia , Hipertensão Portal/terapia , Recém-Nascido , Cirrose Hepática/epidemiologia , Cirrose Hepática/fisiopatologia , Cirrose Hepática/terapia , Hepatopatias/epidemiologia , Hepatopatias/fisiopatologia , Transplante de Fígado , México/epidemiologia , Pré-Eclâmpsia/epidemiologia , Pré-Eclâmpsia/fisiopatologia , Pré-Eclâmpsia/terapia , Gravidez , Complicações na Gravidez/epidemiologia , Complicações na Gravidez/fisiopatologia , Complicações Infecciosas na Gravidez/epidemiologia , Complicações Infecciosas na Gravidez/fisiopatologia , Complicações Infecciosas na Gravidez/terapia , Centros de Atenção Terciária
19.
Int Urol Nephrol ; 51(7): 1199-1206, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-30989565

RESUMO

PURPOSE: To evaluate the risk factors and renal prognosis of acute kidney injury (AKI) in patients with hemolysis, elevated liver enzymes, and low platelet count (HELLP) syndrome. METHODS: Women with HELLP syndrome over a 15-year period at Peking Union Medical College Hospital, China, were retrospectively studied. RESULTS: A total of 108 patients with HELLP syndrome were included. Fifty-two (48.1%) patients were diagnosed with AKI (median serum creatinine, 139.72 µmol/L; range, 89.00-866.00); 11 (21.2%) required hemodialysis. The AKI group had significantly more multiparity (p = 0.034), hemorrhage > 400 mL (p = 0.027), severe systolic hypertension ≥ 160 mmHg (p = 0.005), infection (p < 0.001), and low hemoglobin (p = 0.002) than non-AKI patients. Multivariate logistic regression showed that infection (OR 36.441, 95% CI 3.819-347.732, p = 0.002), severe systolic hypertension (OR 5.295, 95% CI 1.795-15.620, p = 0.003), and low hemoglobin (OR 0.960, 95% CI 0.932-0.988, p = 0.006) were independent risk factors for AKI. Six patients with AKI died (mortality rate: 11.5%); no death occurred among patients without AKI. In addition to infection (OR 16.268, CI 1.334-198.385, p = 0.029) and eclampsia (OR 69.895, CI 2.834-1723.910, p = 0.009), elevated serum creatinine (OR 1.006, CI 1.001-1.011, p = 0.031) was an independent predictor of maternal mortality. Renal function in 43 (82.7%) patients completely recovered. Two (3.8%) patients developed chronic renal dysfunction after 1 to 2 years of follow-up. CONCLUSIONS: Elevated creatinine was an independent predictor of maternal mortality in HELLP syndrome. AKI severely affects renal prognosis and mortality in pregnant women. The occurrence of AKI was related to infection, severe hypertension, and renal ischemia.


Assuntos
Injúria Renal Aguda , Creatinina/sangue , Eclampsia , Síndrome HELLP , Infecções , Rim , Injúria Renal Aguda/diagnóstico , Injúria Renal Aguda/epidemiologia , Injúria Renal Aguda/etiologia , Injúria Renal Aguda/terapia , Adulto , Testes de Coagulação Sanguínea/métodos , China , Eclampsia/diagnóstico , Eclampsia/epidemiologia , Eclampsia/prevenção & controle , Feminino , Síndrome HELLP/diagnóstico , Síndrome HELLP/mortalidade , Síndrome HELLP/fisiopatologia , Humanos , Infecções/diagnóstico , Infecções/epidemiologia , Rim/irrigação sanguínea , Rim/fisiopatologia , Masculino , Valor Preditivo dos Testes , Gravidez , Prognóstico , Diálise Renal/métodos , Diálise Renal/estatística & dados numéricos , Estudos Retrospectivos , Fatores de Risco
20.
J Med Case Rep ; 13(1): 16, 2019 Jan 19.
Artigo em Inglês | MEDLINE | ID: mdl-30658715

RESUMO

BACKGROUND: For the past decades the mean age of primiparae in Western societies is constantly increasing. At the same time, there is a growing demand for assisted reproductive technologies such as in vitro fertilization and intracytoplasmic sperm injection. Subsequently, a higher prevalence of pregnancy-associated diseases such as gestational hypertension and preeclampsia is observed. To improve pregnancy rates after in vitro fertilization/intracytoplasmic sperm injection and to reduce the risk of pregnancy-associated diseases with a cardiovascular pathophysiology, two anticoagulants are the focus of current research: low molecular weight heparin and acetylsalicylic acid (aspirin). CASE PRESENTATION: A 41-year-old white woman, gravida 3, para 0, received low molecular weight heparin to reduce the risk of abortion after five unsuccessful intracytoplasmic sperm injections and two miscarriages. She autonomously discontinued the medication with low molecular weight heparin at 12 weeks and 2 days of gestation and took aspirin instead until 24 weeks and 2 days of gestation as preeclampsia prophylaxis. However, the pregnancy ended with an urgent cesarean section at 27 weeks and 4 days of gestation due to a fast progressing hemolysis, elevated liver enzyme levels, and low blood platelet count syndrome, a potentially life-threatening variant of preeclampsia. CONCLUSION: Based on the current demographic trend toward late-in-life pregnancy it is mandatory to establish clear guidelines concerning preventive treatment options of preeclampsia for patients with risk factors. The establishment of a special first-trimester screening for these women should be discussed. Moreover, it is necessary to raise the awareness among physicians of these contemporary issues to guarantee the best possible medical care.


Assuntos
Anticoagulantes/uso terapêutico , Aspirina/uso terapêutico , Cesárea , Síndrome HELLP , Heparina de Baixo Peso Molecular/uso terapêutico , Injeções de Esperma Intracitoplásmicas , Adulto , Feminino , Síndrome HELLP/tratamento farmacológico , Síndrome HELLP/fisiopatologia , Síndrome HELLP/prevenção & controle , Humanos , Recém-Nascido de Baixo Peso , Recém-Nascido , Gravidez , Nascimento Prematuro , Resultado do Tratamento
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