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1.
BMC Pregnancy Childbirth ; 21(1): 525, 2021 Jul 23.
Artigo em Inglês | MEDLINE | ID: mdl-34301179

RESUMO

BACKGROUND: Globally 90 % of transmission of Hepatitis B virus (HBV) is from mother-to child and occurs predominantly in resource limited countries where the prevalence of HBV is high. Transmission could be interrupted by timely vaccinations but coverage remains problematic in these areas. Low knowledge or awareness of HBV may play a part in low vaccination coverage. This study examines the provision of antenatal care counselling with a focus on HBV in two different regions of northern Thailand, Sarapee Hospital (SH), Chiang Mai, and Shoklo Malaria Research Unit (SMRU), Tak Province. METHODS: A mixed-methods sequential explanatory study design was used to evaluate antenatal services for migrants. Cross-sectional knowledge, attitude and practice (KAP) surveys were conducted immediately after counselling at first ANC contact, at 3-6 months after first ANC contact and at delivery. Surveys provided quantitative data, and qualitative methods included observations, focus group discussions (FGD) and in-depth interviews (IDI); analysed thematically to explore concepts of knowledge and understanding, attitude and practice of pregnant women and providers. RESULTS: Between September-2019 and May-2020, 757 women participated to KAP surveys, and 31 observations of counselling, 16 FGD and 9 IDI were conducted. KAP surveys showed in spite of low knowledge about HBV transmission, infection, or vaccination (correct response: SH 5.7 %, 9/157; SMRU 34.0 %, 204/600), most women (≥ 93 %, either site) understood they were screened for HBV and were willing to vaccinate infants for HBV. In explaining KAP survey results, qualitative analysis suggests counselling should: use the appropriate language; be tailored to the local health literacy level, provide only pertinent information, be repeated over the antenatal period; and attempt to ensure patient privacy (where possible). Programme effectiveness benefits from positive attitudes to screening and vaccinations and a high level of trust in the providers nevertheless participants provided good suggestions for improvements of the service. CONCLUSIONS: Limited knowledge of HBV among migrant women can be improved by counselling that emphasizes actionable knowledge such as vaccination schedule. Key improvements to the counselling process include training counsellors to conduct interactive counselling sessions in the woman's language, using appropriate visual aids and timely repetition over the course of the antenatal period.


Assuntos
Conhecimentos, Atitudes e Prática em Saúde , Hepatite B/prevenção & controle , Cuidado Pré-Natal/estatística & dados numéricos , Migrantes/psicologia , Adolescente , Adulto , Estudos Transversais , Feminino , Grupos Focais , Vírus da Hepatite B , Humanos , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Pessoa de Meia-Idade , Gravidez , Complicações Infecciosas na Gravidez/prevenção & controle , Inquéritos e Questionários , Tailândia , Vacinação/psicologia , Adulto Jovem
2.
Int J Equity Health ; 19(1): 156, 2020 09 10.
Artigo em Inglês | MEDLINE | ID: mdl-32912268

RESUMO

BACKGROUND: The aim of this manuscript is to highlight challenges in the implementation of maternal tenofovir disoproxil fumarate (tenofovir) for prevention of mother to child transmission (PMTCT) of hepatitis B virus (HBV) in resource limited setting. Current preventive strategies in resource-limited settings fail mainly due to prohibitive costs of hepatitis B immunoglobulin (HBIG) and a high proportion of homebirths, meaning both HBIG and hepatitis B birth dose vaccine are not given. A new strategy for PMTCT without the necessity of HBIG, could be daily tenofovir commenced early in gestation. Implementation challenges to early tenofovir for PMTCT can provide insight to elimination strategies of HBV as the burden of disease is high in resource-limited settings. METHODS: Challenges encountered during implementation of a study of tenofovir for PMTCT before 20 weeks gestation in rural and resource-limited areas on the Thailand-Myanmar border were identified informally from trial study logbooks and formally from comments from patients and staff at monthly visits. ClinicalTrials.gov Identifier: NCT02995005. MAIN BODY: During implementation 171 pregnant women were hepatitis B surface antigen (HBsAg) positive by point of-care test over 19 months (May-2018 until Dec-2019). In this resource-limited setting where historically no clinic has provided tenofovir for PMTCT of HBV, information provided by staff resulted in a high uptake of study screening (95.5% (84/88) when offered to pregnant women. False positive point-of-care rapid tests hinder a test and treat policy for HBV and development of improved rapid tests that include HBeAg and/or HBV DNA would increase efficiency. Integrated care of HBV to antenatal care, transport assistance and local agreements to facilitate access, could increase healthcare at this critical stage of the life course. As safe storage of medication in households in resource-limited setting may not be ideal, interactive counseling about this must be a routine part of care. CONCLUSION: Despite challenges, results from the study to date suggest tenofovir can be offered to HBV-infected women in resource-limited settings before 20 weeks gestation with a high uptake of screening, high drug accountability and follow-up, with provision of transportation support. This commentary has highlighted practical implementation issues with suggestions for strategies that support the objective of PMTCT and the World Health Organization goal of HBV elimination by 2030.


Assuntos
Antivirais/uso terapêutico , Acessibilidade aos Serviços de Saúde , Hepatite B/prevenção & controle , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Complicações Infecciosas na Gravidez/tratamento farmacológico , Tenofovir/uso terapêutico , Migrantes , Adulto , Criança , Feminino , Recursos em Saúde , Hepatite B/sangue , Hepatite B/virologia , Antígenos de Superfície da Hepatite B/sangue , Vacinas contra Hepatite B/administração & dosagem , Antígenos E da Hepatite B/sangue , Vírus da Hepatite B/genética , Vírus da Hepatite B/imunologia , Humanos , Imunoglobulinas/uso terapêutico , Masculino , Mianmar , Gravidez , Complicações Infecciosas na Gravidez/sangue , Complicações Infecciosas na Gravidez/virologia , Cuidado Pré-Natal , População Rural , Tailândia , Vacinação
3.
Open Forum Infect Dis ; 6(12): ofz518, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31890723

RESUMO

BACKGROUND: Vaccination remains the mainstay of prevention of hepatitis B virus (HBV) including birth dose and hepatitis B immunoglobulins (HBIGs). National estimates of vaccination coverage exclude migrants. The objective of this study is to investigate documentation practices of HBV-related infant vaccinations in Northern Thailand including migrants. METHODS: This is a retrospective review of hospital records of women who birthed infants in 2015 at Maharaj Nakorn Hospital, Chiang Mai (CM) or on the Thailand-Myanmar border, Tak. RESULTS: Of 2522 women, 987 were from CM (861 Thai nationals, 126 migrants) and 1535 were from Tak (651 Thai residence and 884 Myanmar residence). In CM, documentation for the birth dose vaccine (999 of 999, 100%) and HBIG was complete. In Tak, documentation was 1441 of 1549 (93%) for birth dose and 26 of 34 (76.5%) for HBIG, with missed opportunities including home delivery, delay in obtaining hepatitis B e-antigen status, and limitations of the records. Expanded Program of Immunization (EPI) documentation of 3 follow-up vaccinations dwindled with subsequent doses and distance, and complete documentation of 3 HBV EPI vaccines at the hospital of birth was low, 41.5% (1056 of 2547), but equitable for Thai or migrant status. CONCLUSIONS: This review provides strong support for excellent documentation of HBIG and birth dose vaccination in urban and rural settings, and in migrants, consistent with Thailand's vaccination policy and practice. Documentation of the 3 HBV EPI at the hospital of birth decreases with sequential doses, especially in families further away. Innovative data linkage is required to prove coverage and identify gaps.

4.
Neth J Med ; 69(10): 461-4, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-22058269

RESUMO

Two cases are reported of patients on continuous ambulatory peritoneal dialysis who presented with peritonitis caused by Listeria monocytogenes. They were successfully treated with intraperitoneal and intravenous administration of amoxicillin. In patients on peritoneal dialysis, Listeria monocytogenes is a very rare cause of peritonitis, with only 11 cases reported to date, and mainly occurring in immunocompromised patients. In contrast to the majority of the reported cases, neither of our patients had received immunosuppressive drugs. To our knowledge, these are the first two cases of Listeria peritonitis reported in the Netherlands.


Assuntos
Listeriose/microbiologia , Diálise Peritoneal Ambulatorial Contínua/efeitos adversos , Peritonite/microbiologia , Idoso , Amoxicilina/uso terapêutico , Antibacterianos/uso terapêutico , Humanos , Listeriose/tratamento farmacológico , Masculino , Pessoa de Meia-Idade , Peritonite/tratamento farmacológico
5.
Gastroenterology ; 95(1): 63-8, 1988 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-3131181

RESUMO

Studies were carried out to determine the role of luminal amino acids and metabolic balance in in vivo amino acid absorption. Previous in vitro studies have shown that adaptation of amino acid transport is a complex phenomenon. In the first series of experiments, parenterally nourished rats received a 7-day jejunal infusion of either 3% aspartic acid, glutamine, lysine, valine, or mixed amino acids. A single-pass perfusion was performed to determine the effects of infusates on 5 mM valine, aspartic acid, and lysine absorption. Compared with controls receiving luminal saline, prior glutamine infusion increased valine absorption; prior valine, glutamine, and aspartic acid infusion significantly increased aspartic acid absorption; and prior valine and lysine infusion significantly increased lysine absorption. The mixed amino acid solution had no effect. The effects of metabolic balance were examined by comparing fasted rats with parenterally fed and orally fed rats. Within 24 h fasting significantly increased valine and aspartic acid absorption, despite a significant decrease in intestinal mass.


Assuntos
Aminoácidos/metabolismo , Absorção Intestinal , Jejuno/metabolismo , Administração Oral , Aminoácidos/administração & dosagem , Aminoácidos/farmacologia , Animais , Ácido Aspártico/administração & dosagem , Ácido Aspártico/metabolismo , Ácido Aspártico/farmacologia , Peso Corporal , Jejum , Glutamina/administração & dosagem , Glutamina/farmacologia , Mucosa Intestinal/citologia , Lisina/administração & dosagem , Lisina/metabolismo , Lisina/farmacologia , Masculino , Nutrição Parenteral Total , Ratos , Ratos Endogâmicos , Valina/administração & dosagem , Valina/metabolismo , Valina/farmacologia
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