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1.
Pregnancy Hypertens ; 32: 43-49, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37088032

RESUMO

OBJECTIVES: Pre-eclampsia (PE) is a leading cause of obstetric morbidity, with no definitive therapy other than delivery. We aimed to compare complement markers in maternal and fetal circulation, and placental tissue, between women with PE and healthy pregnant controls. STUDY DESIGN: Maternal and umbilical cord blood was tested for iC3b, C3, C4, properdin, Ba and C5b-9, and placental tissue for C3d, C4d, C9 and C1q, from women with PE (n = 34) and healthy pregnant controls (n = 33). Maternal properdin and Ba tests were repeated in a separate validation cohort (PE n = 35; healthy pregnant controls n = 35). MAIN OUTCOME MEASURES: Complement concentrations in maternal and umbilical cord blood, and placental immunohistochemical complement deposition. RESULTS: Women with PE had significantly lower concentrations of properdin (mean: 4828 vs 6877 ng/ml, p < 0.001) and C4 (mean: 0.20 vs 0.31 g/l, p < 0.001), and higher Ba (median: 150 vs 113 ng/ml, p = 0.012), compared to controls. After controlling for gestational age at blood draw, average properdin concentration was 1945 ng/ml lower in PE vs controls (95 % CI: 1487-2402, p < 0.001). Of the cord blood markers assessed, only Ba differed significantly between PE and controls (median: 337 vs 233 ng/ml, p = 0.004). C4d staining of the syncytiotrophoblast membrane was increased in PE vs controls (median immunoreactivity score 3 vs 0, p < 0.001). Maternal properdin and C4 were significantly negatively correlated with placental C4d staining. CONCLUSIONS: Our data confirm excessive placental complement deposition associated with significant concurrent changes in maternal and fetal circulating complement biomarkers in PE. Inhibition of complement activation is a potential therapeutic target.


Assuntos
Placenta , Pré-Eclâmpsia , Gravidez , Feminino , Humanos , Placenta/metabolismo , Properdina/metabolismo , Ativação do Complemento , Trofoblastos/metabolismo
2.
J Inherit Metab Dis ; 45(5): 963-968, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35713960

RESUMO

Cystinosis is a rare autosomal recessive disease leading to end-stage renal disease within the second or third decade of life. Since the era of specific treatment with cysteamine, prognosis has substantially improved and pregnancy becomes an increasing concern. Pregnancy data in patients with cystinosis were collected through an anonymized survey. We collected data for 19 pregnancies in 12 women. Seventeen patients were transplanted, 1 was on hemodialysis and 1 had chronic kidney disease (CKD) stage 4. These 19 pregnancies resulted in 13 live births (68.4%): 3 spontaneous early miscarriages, 1 ectopic pregnancy, 1 early pre-eclampsia (at 21 weeks), and 1 preterm birth with neonatal death at 24 weeks were reported. After exclusion of early miscarriage or termination, pregnancy success rate was 86.7%. In successful pregnancies, median gestational age at delivery was 34 weeks (24-37). Preeclampsia occurred in seven pregnancies (7/15, 46.7%). A cesarean section was performed in all pregnancies. Median baby weight at delivery was 2175 g (620-3374 g). After pregnancy, one patient reached end-stage renal disease, but she already had advanced CKD before pregnancy (creatinine 239 µmol/L, eGFR 23 ml/min/1.73 m2 ). In three other patients, there was a decrease of eGFR of 8, 20, and 53 ml/min/1.73 m2 , respectively. The majority of pregnancies were successful, but severe antenatal and post-natal complications may occur, in particular preeclampsia that was noticed in nearly half of patients and fetal loss in one-third of them. These results may help pre-pregnancy counseling and pregnancy management.


Assuntos
Cistinose , Falência Renal Crônica , Pré-Eclâmpsia , Complicações na Gravidez , Nascimento Prematuro , Cesárea , Cistinose/complicações , Feminino , Humanos , Recém-Nascido , Falência Renal Crônica/etiologia , Falência Renal Crônica/terapia , Pré-Eclâmpsia/epidemiologia , Gravidez , Resultado da Gravidez
3.
J Nephrol ; 35(6): 1689-1698, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35347647

RESUMO

BACKGROUND: Evidence surrounding vascular access options for commencing dialysis in pregnancy complicated by chronic kidney disease (CKD) is limited. Creation of new arteriovenous fistulas (AVFs) in pregnant women is rare. METHODS: Retrospective cohort study of approaches to vascular access in pregnancy in centres in Australia, the United Kingdom (UK) and Canada (2002-2018). RESULTS: Twenty-three women with advanced CKD commenced dialysis in pregnancy (n = 20) or planned to commence (n = 3). Access at dialysis start was a tunnelled catheter (n = 13), temporary catheter (n = 1), AVF created pre-conception but used in pregnancy (n = 3) and AVF created during pregnancy (n = 3). No women commencing dialysis with an AVF required a catheter. No differences in perinatal outcomes were observed comparing AVFs and catheters at dialysis commencement. No AVFs were created in pregnancy in Canadian women. From Australia and the UK, 10 women had a new AVF created in pregnancy, at median gestation 14.5 weeks (IQR 12.5, 20.75). Four women still needed a catheter for dialysis initiation and 3 eventually used the new AVF. Six AVFs were successfully used in pregnancy at median gestation 24 weeks (IQR 22.5, 28.5), 2 were successfully created but not used and 2 had primary failure. No catheter-associated complications were identified except one episode of catheter-related sepsis. CONCLUSIONS: Catheter-related complications were minimal. In selected women, with sufficient pre-planning, an AVF can be created and successfully used during pregnancy to minimise catheter use if preferred. Pre-conception counselling in advanced CKD should include discussing vascular access options reflecting local expertise and patient preferences.


Assuntos
Fístula Arteriovenosa , Derivação Arteriovenosa Cirúrgica , Falência Renal Crônica , Insuficiência Renal Crônica , Derivação Arteriovenosa Cirúrgica/efeitos adversos , Canadá , Feminino , Humanos , Gravidez , Gestantes , Diálise Renal/efeitos adversos , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/diagnóstico , Insuficiência Renal Crônica/terapia , Estudos Retrospectivos
4.
Kidney Int Rep ; 5(8): 1342-1349, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32775838

RESUMO

Chronic kidney disease (CKD) is associated with adverse maternal and fetal outcomes and is reported to affect up to 3% of women of reproductive age in high-income countries, but estimated prevalence may be as much as 50% higher in low and middle-income countries (LMICs). All pregnancy complications occur much more frequently in women in LMICs compared with those in high-income countries. Given the anticipated high prevalence of CKD in women of reproductive age and high rates of maternal and fetal adverse events in Africa, we sought to explore the association between CKD and pregnancy outcomes in this setting through a narrative review of the literature. This review demonstrates the paucity of data in this area and highlights the systemic barriers that exist in many African countries that prevent robust management of noncommunicable diseases such as CKD during a woman's reproductive life. This evidence gap highlights the need for further research, starting by sampling normal ranges of serum creatinine concentrations in pregnant and nonpregnant women of reproductive age in the diverse populations of Africa, estimating prevalence of CKD, and understanding associated pregnancy outcomes. Research should then focus on pragmatic interventions that may improve outcomes for women and their infants.

5.
Clin Kidney J ; 12(6): 855-858, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31807299

RESUMO

Cystinosis is a rare autosomal recessive disease causing cystine deposition in all tissues, primarily affecting the kidneys. There are few published reports of pregnancy in women with cystinosis, and little evidence is available regarding optimal management. Kidney transplantation and cystine-depleting therapy have transformed the prognosis of cystinosis, and pregnancy is increasingly considered. The evidence base for cystinosis management in pregnancy, therefore, requires expansion. We report three successful pregnancy outcomes and five early pregnancy losses in two women with cystinosis. The challenges of pregnancy in patients with cystinosis are discussed. Pre-pregnancy planning and antenatal management in a specialist renal obstetric clinic are paramount.

6.
Br J Gen Pract ; 65(632): e141-51, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25733435

RESUMO

BACKGROUND: Online access to medical records by patients can potentially enhance provision of patient-centred care and improve satisfaction. However, online access and services may also prove to be an additional burden for the healthcare provider. AIM: To assess the impact of providing patients with access to their general practice electronic health records (EHR) and other EHR-linked online services on the provision, quality, and safety of health care. DESIGN AND SETTING: A systematic review was conducted that focused on all studies about online record access and transactional services in primary care. METHOD: Data sources included MEDLINE, Embase, CINAHL, Cochrane Library, EPOC, DARE, King's Fund, Nuffield Health, PsycINFO, OpenGrey (1999-2012). The literature was independently screened against detailed inclusion and exclusion criteria; independent dual data extraction was conducted, the risk of bias (RoB) assessed, and a narrative synthesis of the evidence conducted. RESULTS: A total of 176 studies were identified, 17 of which were randomised controlled trials, cohort, or cluster studies. Patients reported improved satisfaction with online access and services compared with standard provision, improved self-care, and better communication and engagement with clinicians. Safety improvements were patient-led through identifying medication errors and facilitating more use of preventive services. Provision of online record access and services resulted in a moderate increase of e-mail, no change on telephone contact, but there were variable effects on face-to-face contact. However, other tasks were necessary to sustain these services, which impacted on clinician time. There were no reports of harm or breaches in privacy. CONCLUSION: While the RoB scores suggest many of the studies were of low quality, patients using online services reported increased convenience and satisfaction. These services positively impacted on patient safety, although there were variations of record access and use by specific ethnic and socioeconomic groups. Professional concerns about privacy were unrealised and those about workload were only partly so.


Assuntos
Acesso à Informação , Sistemas de Informação em Atendimento Ambulatorial/organização & administração , Atenção à Saúde/organização & administração , Registros Eletrônicos de Saúde/organização & administração , Satisfação do Paciente/estatística & dados numéricos , Atenção Primária à Saúde , Comunicação , Humanos , Atenção Primária à Saúde/organização & administração
7.
BMJ Open ; 4(9): e006021, 2014 Sep 08.
Artigo em Inglês | MEDLINE | ID: mdl-25200561

RESUMO

OBJECTIVES: To investigate the effect of providing patients online access to their electronic health record (EHR) and linked transactional services on the provision, quality and safety of healthcare. The objectives are also to identify and understand: barriers and facilitators for providing online access to their records and services for primary care workers; and their association with organisational/IT system issues. SETTING: Primary care. PARTICIPANTS: A total of 143 studies were included. 17 were experimental in design and subject to risk of bias assessment, which is reported in a separate paper. Detailed inclusion and exclusion criteria have also been published elsewhere in the protocol. PRIMARY AND SECONDARY OUTCOME MEASURES: Our primary outcome measure was change in quality or safety as a result of implementation or utilisation of online records/transactional services. RESULTS: No studies reported changes in health outcomes; though eight detected medication errors and seven reported improved uptake of preventative care. Professional concerns over privacy were reported in 14 studies. 18 studies reported concern over potential increased workload; with some showing an increase workload in email or online messaging; telephone contact remaining unchanged, and face-to face contact staying the same or falling. Owing to heterogeneity in reporting overall workload change was hard to predict. 10 studies reported how online access offered convenience, primarily for more advantaged patients, who were largely highly satisfied with the process when clinician responses were prompt. CONCLUSIONS: Patient online access and services offer increased convenience and satisfaction. However, professionals were concerned about impact on workload and risk to privacy. Studies correcting medication errors may improve patient safety. There may need to be a redesign of the business process to engage health professionals in online access and of the EHR to make it friendlier and provide equity of access to a wider group of patients. A1 SYSTEMATIC REVIEW REGISTRATION NUMBER: PROSPERO CRD42012003091.


Assuntos
Acesso à Informação , Registros Eletrônicos de Saúde , Pacientes , Coleta de Dados , Atenção à Saúde , Registros Eletrônicos de Saúde/organização & administração , Humanos , Pacientes/psicologia , Qualidade da Assistência à Saúde
8.
Inform Prim Care ; 20(4): 271-82, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23890339

RESUMO

BACKGROUND: Innovators have piloted improvements in communication, changed patterns of practice and patient empowerment from online access to electronic health records (EHR). International studies of online services, such as prescription ordering, online appointment booking and secure communications with primary care, show good uptake of email consultations, accessing test results and booking appointments; when technologies and business process are in place. Online access and transactional services are due to be rolled out across England by 2015; this review seeks to explore the impact of online access to health records and other online services on the quality and safety of primary health care. OBJECTIVE: To assess the factors that may affect the provision of online patient access to their EHR and transactional services, and the impact of such access on the quality and safety of health care. METHOD: Two reviewers independently searched 11 international databases during the period 1999-2012. A range of papers including descriptive studies using qualitative or quantitative methods, hypothesis-testing studies and systematic reviews were included. A detailed eligibility criterion will be used to shape study inclusion. A team of experts will review these papers for eligibility, extract data using a customised extraction form and use the Grading of Recommendations Assessment, Development and Evaluation (GRADE) instrument to determine the quality of the evidence and the strengths of any recommendation. Data will then be descriptively summarised and thematically synthesised. Where feasible, we will perform a quantitative meta-analysis. Prospero (International Prospective Register of Systematic Reviews) registration number: crd42012003091.


Assuntos
Registros Eletrônicos de Saúde/organização & administração , Internet , Acesso dos Pacientes aos Registros , Segurança do Paciente , Qualidade da Assistência à Saúde/organização & administração , Assistência Ambulatorial/organização & administração , Humanos , Capacitação em Serviço , Avaliação de Resultados em Cuidados de Saúde , Cooperação do Paciente , Revisões Sistemáticas como Assunto
9.
Med Educ ; 42(11): 1088-91, 2008 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-18811614

RESUMO

CONTEXT: Medical students have long been perceived as socially segregated from other students. However, the evidence for this is mainly anecdotal. This study investigates this issue by comparing medical students with economics students. METHODS: Questionnaires measuring objective and subjective social life patterns were completed by 149 medical and 149 economics students at a campus-based university in the UK. RESULTS: Medical students drew significantly more of their close friends and housemates from among students on the same course than economics students. Significantly more medical than economics students had a partner on the same course, participated in departmental sports clubs and societies, and felt separated from the rest of university life. Commonly reported reasons for this separation among medical students were high workloads, that the medical school was located outside the main campus, and high numbers of contact hours, some of which took place at sites outside the university. DISCUSSION: Medical students are more socially exclusive than economics students, which may lead to 'in-group' attitudes and behaviours. This is educationally important and may affect their future professionalism. Universities should be aware of the issues involved when planning curricula, timetables, welfare initiatives and campus design. Prospective medical students should be informed of the social consequences of studying medicine.


Assuntos
Relações Interpessoais , Identificação Social , Estudantes/psicologia , Feminino , Humanos , Masculino , Estudantes/estatística & dados numéricos , Inquéritos e Questionários , Reino Unido , Universidades , Adulto Jovem
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