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1.
Am J Physiol Heart Circ Physiol ; 326(5): H1193-H1203, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38334973

RESUMO

Pressure overload-induced hypertrophy compromises cardiac stretch-induced compliance (SIC) after acute volume overload (AVO). We hypothesized that SIC could be enhanced by physiological hypertrophy induced by pregnancy's chronic volume overload. This study evaluated SIC-cardiac adaptation in pregnant women with or without cardiovascular risk (CVR) factors. Thirty-seven women (1st trimester, 1stT) and a separate group of 31 (3rd trimester, 3rdT) women [healthy or with CVR factors (obesity and/or hypertension and/or with gestational diabetes)] underwent echocardiography determination of left ventricular end-diastolic volume (LVEDV) and E/e' before (T0), immediately after (T1), and 15 min after (T2; SIC) AVO induced by passive leg elevation. Blood samples for NT-proBNP quantification were collected before and after the AVO. Acute leg elevation significantly increased inferior vena cava diameter and stroke volume from T0 to T1 in both 1stT and 3rdT, confirming AVO. LVEDV and E/e' also increased immediately after AVO (T1) in both 1stT and 3rdT. SIC adaptation (T2, 15 min after AVO) significantly decreased E/e' in both trimesters, with additional expansion of LVEDV only in the 1stT. NT-pro-BNP increased slightly after AVO but only in the 1stT. CVR factors, but not parity or age, significantly impacted SIC cardiac adaptation. A distinct functional response to SIC was observed between 1stT and 3rdT, which was influenced by CVR factors. The LV of 3rdT pregnant women was hypertrophied, showing a structural limitation to dilate with AVO, whereas the lower LV filling pressure values suggest increased diastolic compliance.NEW & NOTEWORTHY The sudden increase of volume overload triggers an acute myocardial stretch characterized by an immediate rise in contractility by the Frank-Starling mechanism, followed by a progressive increase known as the slow force response. The present study is the first to characterize echocardiographically the stretch-induced compliance (SIC) mechanism in the context of physiological hypertrophy induced by pregnancy. A distinct functional adaptation to SIC was observed between first and third trimesters, which was influenced by cardiovascular risk factors.


Assuntos
Adaptação Fisiológica , Fatores de Risco de Doenças Cardíacas , Humanos , Feminino , Gravidez , Adulto , Função Ventricular Esquerda , Cardiomegalia/fisiopatologia , Cardiomegalia/diagnóstico por imagem , Cardiomegalia/etiologia , Peptídeo Natriurético Encefálico/sangue , Fragmentos de Peptídeos/sangue , Complicações Cardiovasculares na Gravidez/fisiopatologia , Complicações Cardiovasculares na Gravidez/diagnóstico por imagem , Complicações Cardiovasculares na Gravidez/sangue , Volume Sistólico , Terceiro Trimestre da Gravidez , Diabetes Gestacional/fisiopatologia , Complacência (Medida de Distensibilidade) , Primeiro Trimestre da Gravidez , Obesidade/fisiopatologia , Obesidade/complicações , Fatores de Risco
2.
Sleep Health ; 9(4): 460-466, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37088599

RESUMO

OBJECTIVES: This study aimed to examine the association between sleep behaviors and cardiovascular health (CVH) during pregnancy and test whether high-sensitivity C-reactive protein (hs-CRP) mediates this association. METHODS: The study included 4204 pregnant women from the Maternal and Infant Health cohort study in Hefei (MIH-Hefei). Information on sleep (chronotype, sleep duration, snoring, daytime sleepiness, and insomnia) was collected through a touch-screen structured questionnaire at 16-23 weeks' gestation. CVH (body mass index, blood pressure, total cholesterol, glucose, and smoking) and hs-CRP were measured at 24-28 weeks' gestation. The role of hs-CRP in the association between sleep and CVH was explored in a mediation analysis, while adjusting for multiple confounding factors. RESULTS: Poor sleep score was significantly associated with poor gestational CVH metrics, including an RR of 0.872 (95% CI, 0.810, 0.938) for having all ideal (vs. any nonideal) CVH metrics; hs-CRP level was significantly associated with poor gestational CVH metrics, including an RR of 0.531 (95% CI, 0.432, 0.609) for having all ideal (vs. any nonideal) CVH metrics. Sleep scores were positively correlated with hs-CRP level (ß, 0.020, 95% CI, 0.006, 0.034). Mediation analysis revealed that the association between sleep and CVH mediated by hs-CRP was 12.31% (indirect effect, -0.0095, 95% CI, -0.0167, -0.0042). CONCLUSIONS: Poor sleep during pregnancy, particularly late chronotype and snoring, may worsen CVH by increasing systemic chronic inflammation.


Assuntos
Proteína C-Reativa , Inflamação , Complicações Cardiovasculares na Gravidez , Distúrbios do Início e da Manutenção do Sono , Adulto , Feminino , Humanos , Gravidez , Proteína C-Reativa/análise , China , Doença Crônica , Cronotipo , Estudos de Coortes , Fatores de Confusão Epidemiológicos , Distúrbios do Sono por Sonolência Excessiva/sangue , Distúrbios do Sono por Sonolência Excessiva/complicações , Idade Gestacional , Inflamação/sangue , Inflamação/complicações , Análise de Mediação , Complicações Cardiovasculares na Gravidez/sangue , Complicações Cardiovasculares na Gravidez/etiologia , Segundo Trimestre da Gravidez/sangue , Duração do Sono , Distúrbios do Início e da Manutenção do Sono/sangue , Distúrbios do Início e da Manutenção do Sono/complicações , Ronco/sangue , Ronco/complicações
3.
Eur J Obstet Gynecol Reprod Biol ; 272: 198-205, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35366615

RESUMO

OBJECTIVE: Gestational diabetes mellitus (GDM) and hypertensive disorder complicating pregnancy (HDCP) are common complications during pregnancy. This study estimated the correlation of serum miR-518 and inflammatory factors in GDM complicated with HDCP patients (GDM&HDCP). METHODS: Total 240 pregnant women were enrolled, including 118 cases with GDM alone, 57 cases with GDM&HDCP, and 65 healthy pregnant women. The expressions of serum miR-518 and PPARα were detected by RT-qPCR. The clinical diagnostic efficacy of miR-518 for GDM and GDM&HDCP was analyzed via ROC curve. Pearson coefficient was used to analyze the correlation between miR-518 and serum inflammatory factors (hs-CRP, IL-6, and TNF-α), and the relevance between peroxisome proliferator-activated receptor α (PPARα) and serum inflammatory factors. The targeted binding of miR-518 and PPARα was verified using dual-luciferase assay. RESULTS: Serum miR-518 was highly-expressed in GDM and GDM&HDCP patients, but far higher in GDM&HDCP patients. Serum miR-518 level > 1.815 could assist the diagnosis of GDM (81.53% sensitivity and 100% specificity). Serum miR-518 expression was positively-correlated with serum inflammatory factors. miR-518 targeted PPARα and PPARα was lowly-expressed in the serum of GDM and GDM&HDCP patients. PPARα was negatively-linked with serum inflammatory factors. CONCLUSION: High expression of miR-518 assists the diagnosis of GDM and GDM&HDCP, and miR-518 regulates the serum inflammatory factors by inhibiting PPARα.


Assuntos
Diabetes Gestacional , Hipertensão , MicroRNAs , Complicações Cardiovasculares na Gravidez , Diabetes Gestacional/sangue , Diabetes Gestacional/diagnóstico , Feminino , Humanos , Hipertensão/sangue , Hipertensão/diagnóstico , Inflamação/complicações , MicroRNAs/sangue , PPAR alfa/metabolismo , Gravidez , Complicações Cardiovasculares na Gravidez/sangue , Complicações Cardiovasculares na Gravidez/diagnóstico , Curva ROC
4.
Circ Res ; 130(4): 512-528, 2022 02 18.
Artigo em Inglês | MEDLINE | ID: mdl-35175851

RESUMO

Women face a disproportionate burden of stroke mortality and disability. Biologic sex and sociocultural gender both contribute to differences in stroke risk factors, assessment, treatment, and outcomes. There are substantial differences in the strength of association of stroke risk factors, as well as female-specific risk factors. Moreover, there are differences in presentation, response to treatment, and stroke outcomes in women. This review outlines current knowledge of impact of sex and gender on stroke, as well as delineates research gaps and areas for future inquiry.


Assuntos
Caracteres Sexuais , Acidente Vascular Cerebral/epidemiologia , Acidente Vascular Cerebral/fisiopatologia , Diabetes Mellitus/sangue , Diabetes Mellitus/epidemiologia , Diabetes Mellitus/fisiopatologia , Estrogênios/sangue , Feminino , Humanos , Hipertensão/sangue , Hipertensão/epidemiologia , Hipertensão/fisiopatologia , Gravidez , Complicações Cardiovasculares na Gravidez/sangue , Complicações Cardiovasculares na Gravidez/epidemiologia , Complicações Cardiovasculares na Gravidez/fisiopatologia , Fatores de Risco , Fatores Sexuais , Acidente Vascular Cerebral/sangue
5.
Pregnancy Hypertens ; 25: 196-203, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-34237632

RESUMO

BACKGROUND: The gold standard for assessment and diagnosis of significant proteinuria in pregnancy has been by 24-hour urine collection and analysis. Determining fast, accurate methods to identify clinically significant proteinuria would aid diagnosis of pre-eclampsia. The objective of this study was to determine the accuracy of spot protein-creatinine ratio (PCR) and albumin-creatinine ratio (ACR) measurements compared with 24-hour urine collection for the identification of clinically significant proteinuria in women with hypertensive disorders of pregnancy. METHODS: Search strategies were developed for electronic databases from inception to 1st October 2020. Data were assessed for methodological quality using the QUADAS-II checklist for risk of bias and quality of the evidence using GRADE. Meta-analysis was performed where there were at least four studies presenting data for the same comparison (test and threshold). This is an update of the review for NICE guideline NG133 (published June 2019) and includes additional data. RESULTS: Twenty-nine studies were included. PCR measurements (28 studies) showed high sensitivity (91%) and specificity (89%) at a threshold of 30 mg/mmol (n = 3577). Higher thresholds (>60 mg/mmol) increased specificity, but reduced sensitivity. At a threshold of PCR 30 mg/mmol, diagnostic accuracy improved for sensitivity and specificity (93% for both) in studies where the first morning void was excluded (n = 1868). Data available (4 studies) for ACR supports ruling out of significant proteinuria at less than 2 mg/mmol, though evidence was limited by paucity of data and wide confidence intervals around the result. CONCLUSIONS: PCR and ACR have high accuracy compared to the gold standard 24-hour urine collection.


Assuntos
Albuminas/metabolismo , Creatinina/sangue , Hipertensão/diagnóstico , Complicações Cardiovasculares na Gravidez/diagnóstico , Diagnóstico Pré-Natal , Proteinúria , Biomarcadores/sangue , Testes Diagnósticos de Rotina , Feminino , Humanos , Hipertensão/sangue , Hipertensão/urina , Gravidez , Complicações Cardiovasculares na Gravidez/sangue , Complicações Cardiovasculares na Gravidez/urina
7.
J Am Heart Assoc ; 10(5): e017216, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33619977

RESUMO

Background Cardiovascular risk in young adulthood is an important determinant of lifetime cardiovascular disease risk. Women with adverse pregnancy outcomes (APOs) have increased cardiovascular risk, but the relationship of other factors is unknown. Methods and Results Among 4471 primiparous women, we related first-trimester atherogenic markers to risk of APO (hypertensive disorders of pregnancy, preterm birth, small for gestational age), gestational diabetes mellitus (GDM) and hypertension (130/80 mm Hg or antihypertensive use) 2 to 7 years after delivery. Women with an APO/GDM (n=1102) had more atherogenic characteristics (obesity [34.2 versus 19.5%], higher blood pressure [systolic blood pressure 112.2 versus 108.4, diastolic blood pressure 69.2 versus 66.6 mm Hg], glucose [5.0 versus 4.8 mmol/L], insulin [77.6 versus 60.1 pmol/L], triglycerides [1.4 versus 1.3 mmol/L], and high-sensitivity C-reactive protein [5.6 versus 4.0 nmol/L], and lower high-density lipoprotein cholesterol [1.8 versus 1.9 mmol/L]; P<0.05) than women without an APO/GDM. They were also more likely to develop hypertension after delivery (32.8% versus 18.1%, P<0.05). Accounting for confounders and factors routinely assessed antepartum, higher glucose (relative risk [RR] 1.03 [95% CI, 1.00-1.06] per 0.6 mmol/L), high-sensitivity C-reactive protein (RR, 1.06 [95% CI, 1.02-1.11] per 2-fold higher), and triglycerides (RR, 1.27 [95% CI, 1.14-1.41] per 2-fold higher) were associated with later hypertension. Higher physical activity was protective (RR, 0.93 [95% CI, 0.87-0.99] per 3 h/week). When evaluated as latent profiles, the nonobese group with higher lipids, high-sensitivity C-reactive protein, and insulin values (6.9% of the cohort) had increased risk of an APO/GDM and later hypertension. Among these factors, 7% to 15% of excess RR was related to APO/GDM. Conclusions Individual and combined first-trimester atherogenic characteristics are associated with APO/GDM occurrence and hypertension 2 to 7 years later. Registration URL: https://www.clinicaltrials.gov; Unique identifier: NCT02231398.


Assuntos
Aterosclerose/etiologia , Biomarcadores/sangue , Pressão Sanguínea/fisiologia , Diabetes Gestacional/epidemiologia , Hipertensão/complicações , Complicações Cardiovasculares na Gravidez/epidemiologia , Adulto , Aterosclerose/sangue , Aterosclerose/epidemiologia , Diabetes Gestacional/sangue , Diabetes Gestacional/fisiopatologia , Feminino , Seguimentos , Humanos , Hipertensão/epidemiologia , Hipertensão/fisiopatologia , Incidência , Recém-Nascido , Masculino , Gravidez , Complicações Cardiovasculares na Gravidez/sangue , Complicações Cardiovasculares na Gravidez/fisiopatologia , Resultado da Gravidez , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo , Estados Unidos/epidemiologia
8.
Int J Lab Hematol ; 43(5): 1225-1228, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33586909

RESUMO

INTRODUCTION: The antiphospholipid syndrome (APS) is characterized by thrombosis or pregnancy morbidity, and the detection in the blood of at least one of three antiphospholipid antibodies (lupus anticoagulant, or anticardiolipin or anti-ß2 -glycoprotein I antibodies). Diagnosing APS is important so that secondary prophylaxis may be administered to reduce risk of recurrent thrombosis and/or pregnancy morbidity. In addition to APS-defining antibodies, there may be additional autoantibodies that have a role in thrombosis and/or pregnancy morbidity. Furthermore, some patients have clinical manifestations highly suggestive of APS but are persistently negative for the APS-defining antibodies ("seronegative APS") and instead, have other autoantibodies. Antiannexin A5 (aANXA5) autoantibodies have been associated with increased risk of thrombosis and pregnancy morbidity; levels are also reportedly higher in patients with venous thrombosis compared with healthy controls. The prevalence of aANXA5 among patients with unprovoked venous thrombosis is not well-documented and determination of the frequency of aANXA5 is the objective of this study. METHODS: We analysed sera from 148 patients with unprovoked venous thrombosis who had undergone routine laboratory testing for the present APS-defining antibodies. RESULTS: aANXA5 IgG and IgM were present in 6% and 1%, respectively. CONCLUSION: Prevalence of these antibodies in unprovoked venous thrombosis is comparable with frequencies reported in healthy individuals and is far lower than the prevalence in women with pregnancy morbidity. This may indicate lack of association with venous thrombosis, however, adequately powered case-control studies will be required to resolve this and prevalence data from this study will assist in the design of such studies.


Assuntos
Anexina A5/imunologia , Síndrome Antifosfolipídica/imunologia , Autoanticorpos/imunologia , Trombose Venosa/imunologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Anexina A5/sangue , Anticorpos Antifosfolipídeos/sangue , Anticorpos Antifosfolipídeos/imunologia , Síndrome Antifosfolipídica/sangue , Autoanticorpos/sangue , Feminino , Humanos , Imunoglobulina G/sangue , Imunoglobulina G/imunologia , Imunoglobulina M/sangue , Imunoglobulina M/imunologia , Masculino , Pessoa de Meia-Idade , Gravidez , Complicações Cardiovasculares na Gravidez/sangue , Complicações Cardiovasculares na Gravidez/imunologia , Trombose Venosa/sangue , Adulto Jovem
9.
Mol Cell Biochem ; 476(1): 401-416, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-32964393

RESUMO

An increase in cholesterol levels is perceived during pregnancy and is considered as a normal adaptive response to the development of the fetus. In some pregnancies, excessive increase in total cholesterol with high levels of Low-Density Lipoprotein leads to maladaptation by the fetus to cholesterol demands, resulting in a pathological condition termed as maternal hypercholesterolemia (MH). MH is considered clinically irrelevant and therefore cholesterol levels are not routinely checked during pregnancy, as a consequence of which there is scarce information on its global prevalence in pregnant women. Studies have reported that MH during pregnancy can cause atherogenesis in adults emphasizing the concept of in utero programming of fetus. Moreover, Gestational Diabetes Mellitus, obesity and Polycystic Ovary Syndrome are potential risk factors which strengthen combined pathologies in placenta and fetuses of mothers with MH. However, lack of conclusive evidence on cholesterol transport and underlying programming demand substantial research to develop population-based life style strategies for women in their childbearing years. The current review focuses on the mechanisms and outcomes of MH from existing epidemiological as well as experimental data and presents a detailed insight on this novel risk factor of cardiovascular diseases.


Assuntos
Colesterol/sangue , Hipercolesterolemia/sangue , Complicações Cardiovasculares na Gravidez/sangue , Gravidez/sangue , Aterosclerose/sangue , Aterosclerose/complicações , Diabetes Gestacional/sangue , Epigênese Genética , Feminino , Humanos , Hipercolesterolemia/complicações , Estilo de Vida , Metabolismo dos Lipídeos , Lipídeos/química , Masculino , Troca Materno-Fetal , Mães , Placenta , Síndrome do Ovário Policístico/sangue , Síndrome do Ovário Policístico/complicações , Espécies Reativas de Oxigênio , Fatores de Risco
10.
Heart ; 107(17): 1390-1397, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-33234672

RESUMO

BACKGROUND/OBJECTIVES: Pregnancy may potentiate the inherent hypercoagulability of the Fontan circulation, thereby amplifying adverse events. This study sought to evaluate thrombosis and bleeding risk in pregnant women with a Fontan. METHODS: We performed a retrospective observational cohort study across 13 international centres and recorded data on thrombotic and bleeding events, antithrombotic therapies and pre-pregnancy thrombotic risk factors. RESULTS: We analysed 84 women with Fontan physiology undergoing 108 pregnancies, average gestation 33±5 weeks. The most common antithrombotic therapy in pregnancy was aspirin (ASA, 47 pregnancies (43.5%)). Heparin (unfractionated (UFH) or low molecular weight (LMWH)) was prescribed in 32 pregnancies (30%) and vitamin K antagonist (VKA) in 10 pregnancies (9%). Three pregnancies were complicated by thrombotic events (2.8%). Thirty-eight pregnancies (35%) were complicated by bleeding, of which 5 (13%) were severe. Most bleeds were obstetric, occurring antepartum (45%) and postpartum (42%). The use of therapeutic heparin (OR 15.6, 95% CI 1.88 to 129, p=0.006), VKA (OR 11.7, 95% CI 1.06 to 130, p=0.032) or any combination of anticoagulation medication (OR 13.0, 95% CI 1.13 to 150, p=0.032) were significantly associated with bleeding events, while ASA (OR 5.41, 95% CI 0.73 to 40.4, p=0.067) and prophylactic heparin were not (OR 4.68, 95% CI 0.488 to 44.9, p=0.096). CONCLUSIONS: Current antithrombotic strategies appear effective at attenuating thrombotic risk in pregnant women with a Fontan. However, this comes with high (>30%) bleeding risk, of which 13% are life threatening. Achieving haemostatic balance is challenging in pregnant women with a Fontan, necessitating individualised risk-adjusted counselling and therapeutic approaches that are monitored during the course of pregnancy.


Assuntos
Fibrinolíticos , Técnica de Fontan/efeitos adversos , Hemorragia , Complicações Cardiovasculares na Gravidez , Complicações Hematológicas na Gravidez , Risco Ajustado/métodos , Trombofilia , Trombose , Adulto , Quimioprevenção/métodos , Quimioprevenção/estatística & dados numéricos , Monitoramento de Medicamentos/métodos , Feminino , Fibrinolíticos/administração & dosagem , Fibrinolíticos/efeitos adversos , Fibrinolíticos/classificação , Hemorragia/induzido quimicamente , Hemorragia/epidemiologia , Hemorragia/prevenção & controle , Hemorragia/terapia , Humanos , Cooperação Internacional , Gravidez , Complicações Cardiovasculares na Gravidez/sangue , Complicações Cardiovasculares na Gravidez/epidemiologia , Complicações Cardiovasculares na Gravidez/etiologia , Complicações Cardiovasculares na Gravidez/terapia , Complicações Hematológicas na Gravidez/epidemiologia , Complicações Hematológicas na Gravidez/etiologia , Complicações Hematológicas na Gravidez/fisiopatologia , Complicações Hematológicas na Gravidez/terapia , Trombofilia/tratamento farmacológico , Trombofilia/etiologia , Trombose/epidemiologia , Trombose/etiologia , Trombose/terapia
12.
Hematology Am Soc Hematol Educ Program ; 2020(1): 184-189, 2020 12 04.
Artigo em Inglês | MEDLINE | ID: mdl-33275675

RESUMO

The low prevalence of pulmonary embolism (PE) among pregnant patients presenting with suspected PE implies that most of these patients will be found not have the disease. Given this low prevalence, excluding PE in this population has necessitated the use of sensitive and specific diagnostic imaging, such as computed tomography pulmonary angiography or ventilation-perfusion scanning. Recent studies suggest that a clinical prediction rule with D-dimer testing can also be used to exclude a subset of pregnant patients with suspected PE without the need for diagnostic imaging. The YEARS criteria, which consist of clinical signs and symptoms of deep venous thrombosis, hemoptysis, and PE as the most likely diagnosis (a subjective variable), combined with selective D-dimer levels, seem to safely exclude up to one-third of these patients without imaging. The revised Geneva rule using objective variables, combined with nonpregnancy cutoffs for D-dimer levels, offers some promise, although fewer patients avoided imaging (14%). These recent studies provide evidence in support of radiation avoidance for some patients; however, for most, imaging remains the only option. Future studies should focus on improving the safety and techniques of imaging modalities, in addition to improving the specificity of D-dimer testing and objective prediction rules. Studies assessing patients' and physicians' values, preferences, and risk perceptions are also required to assist clinicians in shared decision making when counseling pregnant patients with suspected PE.


Assuntos
Algoritmos , Produtos de Degradação da Fibrina e do Fibrinogênio/metabolismo , Complicações Cardiovasculares na Gravidez , Embolia Pulmonar , Adulto , Angiografia por Tomografia Computadorizada , Feminino , Humanos , Gravidez , Complicações Cardiovasculares na Gravidez/sangue , Complicações Cardiovasculares na Gravidez/diagnóstico , Embolia Pulmonar/sangue , Embolia Pulmonar/diagnóstico
13.
Open Heart ; 7(2)2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-33077550

RESUMO

OBJECTIVE: To describe the intraindividual changes of heart biomarker levels during and after pregnancy and to evaluate existing cut-off levels for heart failure or myocardial ischaemia in pregnant women. METHOD: A total of 196 healthy pregnant women were recruited from maternal outpatient clinics and included in the study. Blood samples were obtained on four occasions: at 10-12 gestational weeks (gw), 20-25 gw, after delivery and 6 months postpartum and analysed for N-terminal pro-brain natriuretic peptide (NTproBNP) and high sensitive cardiac troponin T (hs-cTNT). Echocardiography ruled out existing cardiac disease. Estimated glomerular filtration rate (eGFR) was calculated. RESULTS: There were significant changes in NTproBNP between the measurements with the highest NTproBNP at 10-12 gw and the lowest value being at 20-25 gw, (with eGFR being the highest). Hs-cTNT was significantly higher at the peripartum measurement compared with the other measurements (p<0.05). Regardless, the 95th percentile for both biomarkers was below cut-off levels of 300 ng/L for NTproBNP and 14 ng/L for hs-cTNT. There was an association between NTproBNP above the upper limit of normal of 125 ng/L and eGFR (p=0.04) and between hs-cTNT >5.0 ng/L and time from delivery to blood sample (p=0.001) at the peripartum measurement. Both were associated with the use of oxytocin. CONCLUSION: Existing cut-off values for ruling out heart failure (NTproBNP <300 ng/L) and myocardial ischaemia (hs-cTNT <14 ng/L) are applicable during pregnancy and after delivery. Elevated levels mandate further attention on cardiac symptoms and renal function.


Assuntos
Peptídeo Natriurético Encefálico/sangue , Fragmentos de Peptídeos/sangue , Troponina T/sangue , Adulto , Biomarcadores/sangue , Feminino , Idade Gestacional , Voluntários Saudáveis , Insuficiência Cardíaca/sangue , Insuficiência Cardíaca/diagnóstico , Humanos , Isquemia Miocárdica/sangue , Isquemia Miocárdica/diagnóstico , Período Pós-Parto/sangue , Valor Preditivo dos Testes , Gravidez , Complicações Cardiovasculares na Gravidez/sangue , Complicações Cardiovasculares na Gravidez/diagnóstico , Estudos Prospectivos , Fatores de Tempo
14.
Open Heart ; 7(2)2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-33060142

RESUMO

OBJECTIVES: We conducted a systematic review and meta-analysis of studies that compared levels of molecular biomarkers in women with peripartum cardiomyopathy (PPCM) to those in healthy pregnant and postpartum women to: (1) assess the evidence for prolactin (PRL) metabolism in PPCM, (2) ascertain the evidence for biomarkers of iron deficiency in PPCM, (3) identify other biomarkers associated with PPCM. METHODS: We searched Medline, Embase, Cumulated Index to Nursing and Allied Health Literature (CINAHL) and the Global Health Library from inception without language restriction for studies that compared biomarkers levels in PPCM cases to healthy controls. Pooled standardised mean difference (SMD) was generated using a random effects model for the difference in levels of biomarkers. RESULTS: Two studies assessed the association of PRL with PPCM, and reported that PPCM cases have higher levels of total PRL. No studies investigated iron metabolism in PPCM. Other biomarkers associated with PPCM included serum levels of natriuretic peptides (SMD=3.77, 95% CI 0.71 to 6.82), albumin (SMD=-0.67, 95% CI -1.01 to -0.32), C-reactive protein (SMD=1.67, 95% CI 0.22 to 3.12), selenium (SMD=-0.73, 95% CI -1.58 to 0.12), cardiac troponins (SMD=1.06, 95% CI 0.33 to 1.80), creatinine (SMD=0.51, 95% CI 0.33 to 0.69), white bloodcells (SMD=0.44, 95 % CI 0.07 to 0.82), haemoglobin (SMD=-0.45, 95% CI -0.64 to-0.26). CONCLUSIONS: More robust molecular studies are needed to explore the association between prolactin and PPCM in human subjects and to determine the extent to which iron deficiency (with or without anaemia) contributes to the risk of PPCM.


Assuntos
Anemia Ferropriva/sangue , Cardiomiopatias/sangue , Deficiências de Ferro , Complicações Cardiovasculares na Gravidez/sangue , Prolactina/sangue , Anemia Ferropriva/diagnóstico , Anemia Ferropriva/epidemiologia , Biomarcadores/sangue , Cardiomiopatias/diagnóstico , Cardiomiopatias/epidemiologia , Feminino , Fatores de Risco de Doenças Cardíacas , Humanos , Ferro/sangue , Período Periparto/sangue , Gravidez , Complicações Cardiovasculares na Gravidez/diagnóstico , Complicações Cardiovasculares na Gravidez/epidemiologia , Prognóstico , Medição de Risco
15.
Biomarkers ; 25(6): 449-457, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32693619

RESUMO

Assessment of the plasma concentrations of natriuretic peptides (NPs) is widely used to diagnose and evaluate the progression of cardiac failure, and their potential as markers of preeclampsia (PE) has been examined in recent years. It has been established that plasma concentrations of NPs do not change in the course of normal pregnancy. However, elevated levels of these peptides may have a prognostic value in patients with PE. This study presents information about the relevance of NPs assessment in the evaluation of physiological pregnancy, as well as in pregnancy complicated with arterial hypertension. The most commonly examined NPs is the N-terminal fragment of the brain natriuretic peptide (NT-proBNP), and it may be prognostic marker of PE and other complications of pregnancy.


Assuntos
Biomarcadores/sangue , Hipertensão/sangue , Peptídeo Natriurético Encefálico/sangue , Complicações Cardiovasculares na Gravidez/sangue , Adulto , Feminino , Idade Gestacional , Humanos , Hipertensão/patologia , Gravidez , Complicações Cardiovasculares na Gravidez/patologia , Gestantes
16.
J Obstet Gynaecol Can ; 42(12): 1546-1549, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32723607

RESUMO

Pulmonary embolism (PE) complicates 5.4 per 10 000 pregnancies and remains a significant cause of maternal mortality. Prompt diagnosis and treatment of PE are key to ensuring optimal outcomes, but are not without risks associated with over-testing. Given the paucity of evidence informing PE diagnosis in pregnancy, marked heterogeneity exists among different societies in their recommendations. Here we provide an overview of existing recommendations and novel evidence informing the diagnosis of PE in pregnancy, including the use of d-dimers, the choice of diagnostic imaging modality, and the potential for breast cancer risk among women exposed to ionizing radiation from computed tomography pulmonary angiography (CTPA).


Assuntos
Guias como Assunto , Complicações Cardiovasculares na Gravidez , Embolia Pulmonar/diagnóstico por imagem , Adulto , Tomada de Decisão Clínica , Angiografia por Tomografia Computadorizada , Feminino , Produtos de Degradação da Fibrina e do Fibrinogênio/análise , Humanos , Gravidez , Complicações Cardiovasculares na Gravidez/sangue , Embolia Pulmonar/sangue , Fatores de Tempo
17.
Am J Med Sci ; 360(5): 447-466, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32540145

RESUMO

Pregnancy leads to adaptations for maternal and fetal energy needs. The cardiovascular system bears the brunt of the adaptations as the heart and vessels enable nutrient supply to maternal organs facilitated by the placenta to the fetus. The components of the cardiovascular system are critical in the balance between maternal homeostatic and fetus driven homeorhetic regulation. Since lipids intersect maternal cardiovascular function and fetal needs with growth and in stress, factors affecting lipid deposition and mobilization impact risk outcomes. Here, the cardiovascular components and functional derangements associated with cardiovascular pathology in pregnancy, vis-à-vis lipid deposition, mobilization and maternal and/or cardiac and fetal energy needs are detailed. Most reports on the components and associated pathology in pregnancy, are on derangements affecting the extracellular matrix and epicardial fat, followed by the endothelium, vascular smooth muscle, pericytes and myocytes. Targeted studies on all cardiovascular components and pathological outcomes in pregnancy will enhance targeted interventions.


Assuntos
Doenças Cardiovasculares/sangue , Doenças Cardiovasculares/patologia , Sistema Cardiovascular/patologia , Lipídeos/sangue , Complicações Cardiovasculares na Gravidez/sangue , Complicações Cardiovasculares na Gravidez/patologia , Animais , Sistema Cardiovascular/metabolismo , Feminino , Humanos , Miócitos Cardíacos/patologia , Miócitos Cardíacos/fisiologia , Placenta/metabolismo , Placenta/patologia , Gravidez
19.
Hypertension ; 75(3): 755-761, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31983309

RESUMO

Angiogenic markers such as PlGF (placental growth factor) and sFlt-1 (soluble Fms-like tyrosine kinase-1) have been shown to be useful for predicting adverse outcome in women suspected of having preeclampsia. The aim of the current study was to evaluate the prognostic value of angiogenic markers and maternal risk factors in pregnant women with hypertension. This was a prospective study of pregnancies complicated by preeclampsia, gestational hypertension, or chronic hypertension presenting to 1 of 2 tertiary referral hospitals between May 2013 and May 2018. Maternal characteristics along with blood samples for angiogenic marker analysis were obtained from participants. The primary outcome was delivery related to preeclampsia within 1 and 2 weeks. In total, 302 women with hypertension were included in the study cohort. The baseline model included maternal body mass index, mean arterial pressure, and clinical diagnosis at the time of assessment. The use of sFlt-1/PIGF ratio combined with the baseline model significantly improved the area under the curve values for predicting delivery within a week (0.83 versus 0.88; P=0.025) or in 2 weeks (0.86 versus 0.93; P=0.001) due to preeclampsia-related events in gestational ages <35 weeks. The magnitude of increase in accuracy was 7.9% (-0.5% to 16.4%, posterior probability of increase: 96.7%) for sFlt-1/PlGF ratio. Our results emphasize the additive value of angiogenic biomarkers and the superior performance of a continuous scale of sFlt-1/PlGF ratio in the model. The added utility of angiogenic markers diminishes after 35 weeks' gestation.


Assuntos
Hipertensão Induzida pela Gravidez/sangue , Hipertensão/sangue , Fator de Crescimento Placentário/sangue , Complicações Cardiovasculares na Gravidez/sangue , Receptor 1 de Fatores de Crescimento do Endotélio Vascular/sangue , Adulto , Área Sob a Curva , Índice de Massa Corporal , Parto Obstétrico , Feminino , Humanos , Sobrepeso , Pré-Eclâmpsia/sangue , Gravidez , Complicações na Gravidez , Resultado da Gravidez , Prognóstico , Estudos Prospectivos , Curva ROC
20.
J Womens Health (Larchmt) ; 29(10): 1283-1291, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-31934809

RESUMO

Background: Having a pregnancy complicated by hypertensive disorders of pregnancy (HDP) and/or having a small or preterm baby put a woman at risk for later cardiovascular disease (CVD). It is uncertain if higher maternal CVD risk factors (reflected by increased peripartum CVD biomarker levels) account for this risk, or if experiencing a complicated pregnancy itself increases a woman's CVD risk (reflected by an increase in biomarker trajectories from early pregnancy to postpartum). Methods: We conducted a secondary analysis of an 8-week mindful eating and stress reduction intervention in 110 pregnant women. We used mixed linear regression analysis to compare CVD biomarker levels and trajectories, between women with and without a CVD-related pregnancy complication (including HDP [gestational hypertension or preeclampsia] or having a small for gestational age [<10th percentile] or preterm [<37 weeks] baby), at three times: (1) 12-20 weeks of gestation, (2) 3 months postpartum, and (3) 9 months postpartum. CVD biomarkers studied included serum glucose, insulin, homeostasis model assessment of insulin resistance (HOMA-IR), body mass index (BMI), blood pressure (BP), interleukin-6 (IL-6), tumor necrosis factor, and lipids. We adjusted for age, maternal smoking, prepregnancy BMI, BP, age × time, and BMI × time. Results: Women had a mean age of 28 years (standard deviation [SD] 6), mean prior pregnancies of 0.8 (SD 1.0), and 22 women had one or more CVD-related pregnancy complications. HOMA-IR, diastolic BP, triglyceride, high-density lipoprotein cholesterol, and IL-6 average levels, but not trajectories, differed among women with complicated versus normal pregnancy (all p values were ≤0.04). Peripartum glucose and systolic BP trajectories were statistically greater in complicated versus normal pregnancies (p values were 0.008 and 0.01, respectively). Conclusion: We conclude that the experience of a complicated pregnancy in addition to elevated CVD risk factor levels may both increase a woman's risk of future CVD. ClinicalTrials.gov Identifier: NCT01307683.


Assuntos
Biomarcadores/sangue , Glicemia/análise , Colesterol/sangue , Hipertensão Induzida pela Gravidez/diagnóstico , Insulina/sangue , Complicações Cardiovasculares na Gravidez/sangue , Triglicerídeos/sangue , Adulto , Pressão Sanguínea , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/etiologia , Feminino , Humanos , Hipertensão Induzida pela Gravidez/sangue , Hipertensão Induzida pela Gravidez/epidemiologia , Recém-Nascido , Interleucina-6/sangue , Pré-Eclâmpsia/sangue , Pré-Eclâmpsia/diagnóstico , Pré-Eclâmpsia/epidemiologia , Gravidez , Complicações Cardiovasculares na Gravidez/epidemiologia , Resultado da Gravidez , Fatores de Risco , Fator de Necrose Tumoral alfa/sangue
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