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1.
N Engl J Med ; 384(21): 2028-2038, 2021 05 27.
Artigo em Inglês | MEDLINE | ID: mdl-34038632

RESUMO

BACKGROUND: "Kangaroo mother care," a type of newborn care involving skin-to-skin contact with the mother or other caregiver, reduces mortality in infants with low birth weight (<2.0 kg) when initiated after stabilization, but the majority of deaths occur before stabilization. The safety and efficacy of kangaroo mother care initiated soon after birth among infants with low birth weight are uncertain. METHODS: We conducted a randomized, controlled trial in five hospitals in Ghana, India, Malawi, Nigeria, and Tanzania involving infants with a birth weight between 1.0 and 1.799 kg who were assigned to receive immediate kangaroo mother care (intervention) or conventional care in an incubator or a radiant warmer until their condition stabilized and kangaroo mother care thereafter (control). The primary outcomes were death in the neonatal period (the first 28 days of life) and in the first 72 hours of life. RESULTS: A total of 3211 infants and their mothers were randomly assigned to the intervention group (1609 infants with their mothers) or the control group (1602 infants with their mothers). The median daily duration of skin-to-skin contact in the neonatal intensive care unit was 16.9 hours (interquartile range, 13.0 to 19.7) in the intervention group and 1.5 hours (interquartile range, 0.3 to 3.3) in the control group. Neonatal death occurred in the first 28 days in 191 infants in the intervention group (12.0%) and in 249 infants in the control group (15.7%) (relative risk of death, 0.75; 95% confidence interval [CI], 0.64 to 0.89; P = 0.001); neonatal death in the first 72 hours of life occurred in 74 infants in the intervention group (4.6%) and in 92 infants in the control group (5.8%) (relative risk of death, 0.77; 95% CI, 0.58 to 1.04; P = 0.09). The trial was stopped early on the recommendation of the data and safety monitoring board owing to the finding of reduced mortality among infants receiving immediate kangaroo mother care. CONCLUSIONS: Among infants with a birth weight between 1.0 and 1.799 kg, those who received immediate kangaroo mother care had lower mortality at 28 days than those who received conventional care with kangaroo mother care initiated after stabilization; the between-group difference favoring immediate kangaroo mother care at 72 hours was not significant. (Funded by the Bill and Melinda Gates Foundation; Australian New Zealand Clinical Trials Registry number, ACTRN12618001880235; Clinical Trials Registry-India number, CTRI/2018/08/015369.).


Assuntos
Incubadoras para Lactentes , Recém-Nascido de Baixo Peso , Método Canguru , África Subsaariana , Aleitamento Materno , Países em Desenvolvimento , Feminino , Humanos , Índia , Lactente , Mortalidade Infantil , Recém-Nascido , Unidades de Terapia Intensiva Neonatal , Masculino , Fatores de Tempo
2.
Am J Blood Res ; 12(1): 11-16, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35291251

RESUMO

INTRODUCTION: Hodgkin lymphoma is a malignant proliferation of lymphatic system which when advanced can involve the bone marrow. It is usually indolent and responds to chemotherapy. However the prediction of rapidly progressive disease is often dependent on lot of clinicopathological parameters. Serum ferritin may act as a marker for disease activity in these patients. But the prior studies have failed to establish its role or group the patients into prognostic categories. AIMS: To study the status of serum ferritin at time of admission and after completion of chemotherapy and also iron overload induced organ involvement in the form of hepatic, cardiovascular and thyroid dysfunction in nine patients admitted in our ward with Hodgkin lymphoma and receiving treatment in the form of chemotherapy. METHODOLOGY: A spectrum of clinicopathological variables were tested at baseline and after treatment liver function test, thyroid function test, 2D echocardiography, Ultrasound abdomen, PET scan and serum ferritin level. CONCLUSION: Serum ferritin at baseline statistically correlated with disease activity however the final ferritin values reduced to significant values in patient that underwent remission, and hence grouping of patients based on serum ferritin values can serve as better outcome predictors. Although transfusion requirement was very rare in the patients the levels of serum ferritin correlated with disease activity. Serum ferritin level may act as a predictor of disease activity and remission.

3.
Am J Blood Res ; 11(4): 384-390, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34540346

RESUMO

BACKGROUND: Pediatric patients with hematological malignancy and bone marrow failure syndrome receive multiple transfusions before diagnosis and treatment. Iron overload leads to damage to vital organs like the heart, liver, thyroid, Gonads, Pancreas. MATERIALS AND METHODS: A prospective study was done from June 2017-December 2019 in a tertiary care pediatric hematology oncology unit in northern India on children diagnosed with hematological malignancy and bone marrow failure syndromes receiving packed cell transfusion. After due ethical considerations and patient consent, the details were documented in predesigned proforma. All cases were planned to be investigated with Liver function test, Thyroid function test, Serum ferritin level, 2 D Echocardiography, Ultrasonography of abdomen, and MRI of the abdomen at admission and six months of enrollment. RESULTS: Out of 58 cases enrolled, ferritin levels were high in 65% of subjects at the start of treatment and 76% at the endpoint. Mean ferritin level was 725 ng/ml at baseline and 1268 ng/ml end of 6 month follow up period. Fifty-seven percent had a ferritin level above 1000 ng/ml, which correlated to basal ferritin level (P-value 0.005). The final ferritin level correlated strongly with the final number of packed cell transfusions (P-value 0.0002). Functional derangement of the liver was evident biochemically in 13.7% before starting treatment and 31.8% at six months follow-up period. Echocardiography detected diastolic dysfunction in 2% of patients at baseline before starting treatment and increased to 22% in 6 months follow-up period. The percentage of subclinical hypothyroidism increased from 22.8% to 48.8% during treatment. CONCLUSION: Like transfusion-dependent anemias, children with hematological malignancy and bone marrow failure syndrome on chronic transfusion are at risk of transfusion-related iron overload and organ damage.

4.
PLoS One ; 13(11): e0207297, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30444901

RESUMO

To compare immune phenotypes across two geographic and ethnic communities, we examined umbilical cord blood by flow cytometry and Luminex in parallel cohorts of 53 newborns from New Delhi, India, and 46 newborns from Stanford, California. We found that frequencies of a B cell subset suggested to be B-1-like, and serum IgM concentration were both significantly higher in the Stanford cohort, independent of differences in maternal age. While serum IgA levels were also significantly higher in the Stanford cohort, IgG1, IgG2, and IgG4 were significantly higher in the New Delhi samples. We found that neutrophils, plasmacytoid dendritic cells, CD8+ T cells, and total T cells were higher in the U.S. cohort, while dendritic cells, patrolling monocytes (CD14dimCD16+), natural killer cells, CD4+ T cells, and naïve B cells were higher in the India cohort. Within the India cohort, we also identified cell types whose frequency was positively or negatively predictive of occurrence of infection(s) in the first six months of life. Monocytes, total T cells, and memory CD4+ T cells were most prominent in having an inverse relationship with infection. We suggest that these data provide impetus for follow-up studies linking phenotypic differences to environmental versus genetic factors, and to infection outcomes.


Assuntos
Subpopulações de Linfócitos B/imunologia , Linfócitos T CD4-Positivos/imunologia , Linfócitos T CD8-Positivos/imunologia , Imunoglobulina A/imunologia , Imunoglobulina G/imunologia , Monócitos/imunologia , Subpopulações de Linfócitos B/citologia , Linfócitos T CD4-Positivos/citologia , Linfócitos T CD8-Positivos/citologia , California , Feminino , Humanos , Memória Imunológica , Índia , Recém-Nascido , Masculino , Monócitos/citologia
5.
PLoS One ; 13(6): e0180705, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29953451

RESUMO

BACKGROUND: There is a paucity of data on the epidemiology of sepsis in outborn neonates being referred to level-3 units in low- and middle-income countries (LMIC). The objective of the present study was to evaluate the prevalence of sepsis and outcomes of outborn neonates with sepsis, and to characterize the pathogen profile and antimicrobial resistance (AMR) patterns of common isolates in them. METHODS: In this prospective observational cohort study (2011-2015), a dedicated research team enrolled all neonates admitted to an outborn level-3 neonatal unit and followed them until discharge/death. Sepsis work-up including blood culture(s) was performed upon suspicion of sepsis. All the isolates were identified and tested for antimicrobial susceptibility. Gram-negative pathogens resistant to any three of the five antibiotic classes (extended-spectrum cephalosporins, carbapenems, aminoglycosides, fluoroquinolones, and piperacillin-tazobactam) were labeled multi-drug resistant. RESULTS: Of the total of 2588 neonates enrolled, culture positive sepsis and total sepsis-i.e. culture positive and/or culture negative sepsis-was diagnosed in 13.1% (95% CI 11.8% to 14.5%) and 54.7% (95% CI 52.8% to 56.6%), respectively. The case fatality rates were 23.4% and 11.0% in culture-positive and total sepsis, respectively. Sepsis accounted for two-thirds of total neonatal deaths (153/235, 63.0%). Bacterial isolates caused about three-fourths (296/401; 73.8%) of the infections. The two common pathogens-Klebsiella pneumoniae (n = 50, 12.5%) and Acinetobacter baumannii (n = 46, 11.5%)-showed high degree of multi-drug resistance (78.0% and 91.3%, respectively) and carbapenem resistance (84.0% and 91.3%, respectively). About a quarter of infections were caused by Candida spp. (n = 91; 22.7%); almost three-fourths (73.7%) of these infections occurred in neonates born at or after 32 weeks' gestation and about two-thirds (62.1%) in those weighing 1500 g or more at birth. CONCLUSIONS: In this large outborn cohort, we report high burden of sepsis, high prevalence of systemic fungal infections, and alarming rates of antimicrobial resistance among bacterial pathogens.


Assuntos
Infecções por Acinetobacter/epidemiologia , Acinetobacter baumannii , Antibacterianos/administração & dosagem , Infecções por Klebsiella/epidemiologia , Klebsiella pneumoniae , Sepse/epidemiologia , Infecções por Acinetobacter/tratamento farmacológico , Farmacorresistência Bacteriana , Feminino , Humanos , Índia/epidemiologia , Recém-Nascido , Infecções por Klebsiella/tratamento farmacológico , Masculino , Prevalência , Sepse/tratamento farmacológico , Sepse/microbiologia
6.
BMJ Glob Health ; 3(5): e000907, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30364301

RESUMO

BACKGROUND: Low/middle-income countries need a large-scale improvement in the quality of care (QoC) around the time of childbirth in order to reduce high maternal, fetal and neonatal mortality. However, there is a paucity of scalable models. METHODS: We conducted a stepped-wedge cluster-randomised trial in 15 primary health centres (PHC) of the state of Haryana in India to test the effectiveness of a multipronged quality management strategy comprising capacity building of providers, periodic assessments of the PHCs to identify quality gaps and undertaking improvement activities for closure of the gaps. The 21-month duration of the study was divided into seven periods (steps) of 3 months each. Starting from the second period, a set of randomly selected three PHCs (cluster) crossed over to the intervention arm for rest of the period of the study. The primary outcomes included the number of women approaching the PHCs for childbirth and 12 directly observed essential practices related to the childbirth. Outcomes were adjusted with random effect for cluster (PHC) and fixed effect for 'months of intervention'. RESULTS: The intervention strategy led to increase in the number of women approaching PHCs for childbirth (26 vs 21 women per PHC-month, adjusted incidence rate ratio: 1.22; 95% CI 1.17 to 1.28). Of the 12 practices, 6 improved modestly, 2 remained near universal during both intervention and control periods, 3 did not change and 1 worsened. There was no evidence of change in mortality with a majority of deaths occurring either during referral transport or at the referral facilities. CONCLUSION: A multipronged quality management strategy enhanced utilisation of services and modestly improved key practices around the time of childbirth in PHCs in India. TRIAL REGISTRATION NUMBER: CTRI/2016/05/006963.

7.
PLoS One ; 11(9): e0162242, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27610624

RESUMO

The human peripheral leukocyte subset composition depends on genotype variation and pre-natal and post-natal environmental influence diversity. We quantified this composition in adults and neonates, and compared the median values and dispersal ranges of various subsets in them. We confirmed higher frequencies of monocytes and regulatory T cells (Tregs), similar frequencies of neutrophils, and lower frequencies of CD8 T cells, NKT cells, B1 B cells and gamma-delta T cells in neonatal umbilical cord blood. Unlike previous reports, we found higher frequencies of eosinophils and B cells, higher CD4:CD8 ratios, lower frequencies of T cells and iNKT cells, and similar frequencies of CD4 T cells and NK cells in neonates. We characterized monocyte subsets and dendritic cell (DC) subsets in far greater detail than previously reported, using recently described surface markers and gating strategies and observed that neonates had lower frequencies of patrolling monocytes and lower myeloid dendritic cell (mDC):plasmacytoid DC (pDC) ratios. Our data contribute to South Asian reference values for these parameters. We found that dispersal ranges differ between different leukocyte subsets, suggesting differential determination of variation. Further, some subsets were more dispersed in adults than in neonates suggesting influences of postnatal sources of variation, while some show the opposite pattern suggesting influences of developmental process variation. Together, these data and analyses provide interesting biological possibilities for future exploration.


Assuntos
Envelhecimento/imunologia , Subpopulações de Linfócitos T , Adolescente , Adulto , Estudos de Casos e Controles , Estudos Transversais , Feminino , Citometria de Fluxo , Humanos , Recém-Nascido , Contagem de Linfócitos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
8.
PLoS One ; 10(4): e0123589, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25898362

RESUMO

BACKGROUND: While infections are a major cause of neonatal mortality in India even in full-term neonates, this is an especial problem in the large proportion (~20%) of neonates born underweight (or small-for-gestational-age; SGA). One potential contributory factor for this susceptibility is the possibility that immune system maturation may be affected along with intrauterine growth retardation. METHODS: In order to examine the possibility that differences in immune status may underlie the susceptibility of SGA neonates to infections, we enumerated the frequencies and concentrations of 22 leukocyte subset populations as well as IgM and IgA levels in umbilical cord blood from full-term SGA neonates and compared them with values from normal-weight (or appropriate-for-gestational-age; AGA) full-term neonates. We eliminated most SGA-associated risk factors in the exclusion criteria so as to ensure that AGA-SGA differences, if any, would be more likely to be associated with the underweight status itself. RESULTS: An analysis of 502 such samples, including 50 from SGA neonates, showed that SGA neonates have significantly fewer plasmacytoid dendritic cells (pDCs), a higher myeloid DC (mDC) to pDC ratio, more natural killer (NK) cells, and higher IgM levels in cord blood in comparison with AGA neonates. Other differences were also observed such as tendencies to lower CD4:CD8 ratios and greater prominence of inflammatory monocytes, mDCs and neutrophils, but while some of them had substantial differences, they did not quite reach the standard level of statistical significance. CONCLUSIONS: These differences in cellular lineages of the immune system possibly reflect stress responses in utero associated with growth restriction. Increased susceptibility to infections may thus be linked to complex immune system dysregulation rather than simply retarded immune system maturation.


Assuntos
Retardo do Crescimento Fetal/sangue , Recém-Nascido Pequeno para a Idade Gestacional/sangue , Linfócitos/fisiologia , Neutrófilos/fisiologia , Adulto , Estudos Transversais , Feminino , Sangue Fetal/citologia , Idade Gestacional , Humanos , Imunoglobulina M/sangue , Índia , Recém-Nascido , Masculino , Idade Materna , Fenótipo , Adulto Jovem
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