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Schaltz-Buchholzer F, Nielsen S, Sørensen MK, Stjernholm EB, Fabricius RA, Umbasse P, Monteiro I, Cá EJC, Aaby P, Benn CS. Effects of Neonatal BCG-Japan Versus BCG-Russia Vaccination on Overall Mortality and Morbidity: Randomized Controlled Trial From Guinea-Bissau (BCGSTRAIN II). Open Forum Infect Dis 2024; 11:ofae057. [PMID: 38500576 PMCID: PMC10946234 DOI: 10.1093/ofid/ofae057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 01/29/2024] [Indexed: 03/20/2024] Open
Abstract
Background Vaccination with the Danish strain of bacille Calmette-Guérin (BCG) has been associated with pronounced reductions in all-cause neonatal mortality and morbidity. Developing a skin reaction postvaccination is associated with markedly reduced mortality risk. It is unknown whether the beneficial nonspecific effects are maintained across different BCG strains. Methods This was an open-label randomized controlled trial in Guinea-Bissau, comparing BCG-Japan (n = 8754) versus BCG-Russia (n = 8752) for all-cause hospital admission risk by 6 weeks of age (primary outcome) and 6 months of age. Additional secondary outcomes were in-hospital case-fatality risk (CFR), all-cause mortality, and BCG skin reaction prevalence. Participants were followed through telephone calls at 6 weeks and 6 months, with a subgroup also visited at home. We assessed admission and mortality risk in Cox models providing incidence rate ratios (IRRs) and mortality rate ratios. CFR and skin reactions were assessed by binomial regression providing risk ratios. Analyses were done overall and stratified by sex. Results BCG strain was not associated with admission risk, the BCG-Japan/BCG-Russia IRR being 0.92 (95% confidence interval [CI], .81-1.05) by 6 weeks and 0.92 (95% CI, .82-1.02) by 6 months. By 6 months of age, there were significantly fewer BCG-Japan infants with no skin reaction (1%) than for BCG-Russia (2%), the risk ratio being 0.36 (95% CI, .16-.81). BCG-Japan skin reactions were also larger. Conclusions Both vaccines induced a skin reaction in almost all participants. The BCG strains had comparable effects on morbidity and mortality, but BCG-Japan was associated with more and larger skin reactions that are indicators of lower mortality risk. Clinical Trials Registration NCT03400878.
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Affiliation(s)
- Frederik Schaltz-Buchholzer
- Bandim Health Project, INDEPTH Network, Bissau, Guinea-Bissau
- Bandim Health Project, Odense Patient Data Explorative Network (OPEN), Department of Clinical Research, University of Southern Denmark and Odense University Hospital, Odense, Denmark
| | - Sebastian Nielsen
- Bandim Health Project, INDEPTH Network, Bissau, Guinea-Bissau
- Bandim Health Project, Odense Patient Data Explorative Network (OPEN), Department of Clinical Research, University of Southern Denmark and Odense University Hospital, Odense, Denmark
| | | | | | | | - Paulo Umbasse
- Bandim Health Project, INDEPTH Network, Bissau, Guinea-Bissau
| | - Ivan Monteiro
- Bandim Health Project, INDEPTH Network, Bissau, Guinea-Bissau
| | | | - Peter Aaby
- Bandim Health Project, INDEPTH Network, Bissau, Guinea-Bissau
| | - Christine Stabell Benn
- Bandim Health Project, INDEPTH Network, Bissau, Guinea-Bissau
- Bandim Health Project, Odense Patient Data Explorative Network (OPEN), Department of Clinical Research, University of Southern Denmark and Odense University Hospital, Odense, Denmark
- Danish Institute of Advanced Study, University of Southern Denmark, Odense, Denmark
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Schaltz-Buchholzer F, Aaby P, Silva I, Monteiro I, Kollmann TR, Amenyogbe N, Bjerregaard-Andersen M, Benn CS. Mortality risk among frail neonates might be associated with maternal BCG scar status: Observational study from Guinea-Bissau. J Infect Dis 2022; 227:1237-1244. [PMID: 35417538 DOI: 10.1093/infdis/jiac140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 03/24/2022] [Accepted: 04/08/2022] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Maternal priming with Bacille Calmette-Guérin (BCG) has been associated with reduced offspring mortality. We investigated this association in a cohort of frail neonates. METHODS We performed an observational study within a randomized BCG trial conducted at the Neonatal Intensive Care Unit (NICU) in Guinea-Bissau from 2015-2017. At NICU admission and following informed consent, the maternal scar status was evaluated by visual inspection before neonates were randomized 1:1 to receive BCG + Oral Polio Vaccine (OPV) immediately versus BCG + OPV at hospital discharge. Stratified by maternal scar status, we assessed overall in-hospital and post-discharge mortality up to 42 days of age in Cox Proportional Hazards models providing adjusted Mortality Rate Ratios (aMRRs). RESULTS 62% (903/1451) of mothers had a BCG scar. During NICU admission, the mortality risk was 1.7% (15/903) for neonates born to mothers with a scar vs 3.3% (18/548) for those born to mothers with no scar, the maternal scar/no scar aMRR = 0.53 (0.26-1.05); the aMRR was 0.39 (0.13-1.05) for unvaccinated neonates and 0.70 (0.26-1.87) for vaccinated neonates. CONCLUSION This small study indicates that maternal BCG might be associated with reduced all-cause NICU mortality. If confirmed elsewhere, this finding would have substantial ramifications for global health.
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Affiliation(s)
- Frederik Schaltz-Buchholzer
- Bandim Health Project, INDEPTH Network, postal code 8611004, Bissau, Guinea-Bissau.,Bandim Health Project, OPEN, Department of Clinical Research, Uni. Southern Denmark and Odense University Hospital, postal code 5230 Odense, Denmark
| | - Peter Aaby
- Bandim Health Project, INDEPTH Network, postal code 8611004, Bissau, Guinea-Bissau
| | - Isaquel Silva
- Bandim Health Project, INDEPTH Network, postal code 8611004, Bissau, Guinea-Bissau.,Bandim Health Project, OPEN, Department of Clinical Research, Uni. Southern Denmark and Odense University Hospital, postal code 5230 Odense, Denmark
| | - Ivan Monteiro
- Bandim Health Project, INDEPTH Network, postal code 8611004, Bissau, Guinea-Bissau
| | - Tobias R Kollmann
- Telethon Kids Institute, 15 Hospital Avenue, Nedlands, postal code 6009, Australia
| | - Nelly Amenyogbe
- Telethon Kids Institute, 15 Hospital Avenue, Nedlands, postal code 6009, Australia
| | - Morten Bjerregaard-Andersen
- Bandim Health Project, INDEPTH Network, postal code 8611004, Bissau, Guinea-Bissau.,Department of Endocrinology, Hospital of Southwest Denmark, postal code 6700, Esbjerg, Denmark.,Steno Diabetes Center, Odense University Hospital, postal code 5000, Odense, Denmark
| | - Christine Stabell Benn
- Bandim Health Project, INDEPTH Network, postal code 8611004, Bissau, Guinea-Bissau.,Bandim Health Project, OPEN, Department of Clinical Research, Uni. Southern Denmark and Odense University Hospital, postal code 5230 Odense, Denmark.,Danish Institute of Advanced Science, Uni. Southern Denmark, postal code 5230, Odense, Denmark
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Christensen J, Antonsen S, Sun Y, Dreier JW. Maternal Epilepsy and Long-term Offspring Mortality - a Nationwide Cohort Study. Ann Neurol 2022; 91:455-465. [PMID: 35148430 PMCID: PMC9315000 DOI: 10.1002/ana.26315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 01/27/2022] [Accepted: 01/29/2022] [Indexed: 11/13/2022]
Abstract
Objective We examined how maternal epilepsy and use of antiseizure medications in pregnancy was associated with offspring mortality. Methods This population‐based cohort study included all live‐ and stillborn singletons in Denmark between 1981 and 2016. We used nation‐wide registers to retrieve information on pregnancy characteristics, epilepsy diagnoses, use of antiseizure medications, and mortality. Adjusted mortality rate ratios (MRR) were estimated using log‐linear Poisson regression. Results The cohort consisted of 1,862,474 children. In total, 12,026 live‐born children died during follow‐up, of whom 170 (1.4%) were offspring of mothers with epilepsy. Overall mortality was increased in offspring of mothers with epilepsy compared to offspring of mothers without epilepsy (MRR = 1.46, 95% CI: 1.23–1.71), driven by an excess mortality only in the first year of life. Mortality was increased for natural deaths (MRR = 1.50, 95% CI: 1.25–1.78) but not from unnatural deaths (MRR = 1.38, 95% CI: 0.84–2.14), and only in offspring of women with epilepsy who used antiseizure medications during pregnancy (MRR = 1.51, 95% CI: 1.00–2.17), but not in offspring of women with epilepsy who did not use antiseizure medications while pregnant (MRR = 0.97, 95% CI: 0.69–1.31). When analyses were restricted to children born from 2000 and onwards, the excess mortality that was observed in the first year of life among children of mothers with epilepsy, was no longer evident. Interpretation During the 1981 to 1999 epoch, offspring of women with epilepsy were at increased risk of dying in the first year of life. However, this risk did not extend to children born after 2000. Future retrospective studies of the effects of maternal epilepsy on the health of the offspring should take this difference into account. ANN NEUROL 2022;91:455–465
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Affiliation(s)
- Jakob Christensen
- Department of Neurology, Aarhus University Hospital, Aarhus, Denmark.,National Center for Register-Based Research, Aarhus University, Denmark
| | - Sussie Antonsen
- National Center for Register-Based Research, Aarhus University, Denmark
| | - Yuelian Sun
- Department of Neurology, Aarhus University Hospital, Aarhus, Denmark.,National Center for Register-Based Research, Aarhus University, Denmark
| | - Julie W Dreier
- National Center for Register-Based Research, Aarhus University, Denmark.,Centre for Integrated Register-based Research, CIRRAU, Aarhus University, Aarhus, Denmark
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Silveira RRPD, Serafim CTR, Castro MCNE, Rodrigues GM, Corrente JE, Lima SAM. Nursing workload associated with neonatal mortality risk: a cross-sectional study. Rev Bras Enferm 2022; 75:e20200965. [DOI: 10.1590/0034-7167-2020-0965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 06/24/2022] [Indexed: 11/05/2022] Open
Abstract
ABSTRACT Objectives: to analyze the association between nursing workload and neonatal mortality risk in newborns admitted to the Neonatal Intensive Care Unit. Methods: this is an observational, cross-sectional study conducted from January 2019 to January 2020. Results: the sample consisted of 399 newborns, 55.4% male, Nursing Activities Score mean of 67.5%, and Score for Neonatal Acute Physiology Perinatal Extension mean of 17.7, revealed itself as a predictor of the risk of death, while gestational age, length of hospitalization, and the first-minute Apgar established a protective relationship. The correlation between workload and neonatal mortality was low (r= 0.23, p=0.0009). Conclusions: the workload of the nursing team is not associated with the risk of mortality in the Neonatal Intensive Care Unit, as measured by the Nursing Activities Score.
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Merscher Alves MB, Conté N, Diallo B, Mamadou M, Delamou A, John O, von Felten S, Diallo IS, Roth-Kleiner M. "Assessing Today for a Better Tomorrow": An observational cohort study about quality of care, mortality and morbidity among newborn infants admitted to neonatal intensive care in Guinea. PLoS One 2021; 16:e0254938. [PMID: 34460846 PMCID: PMC8405010 DOI: 10.1371/journal.pone.0254938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 07/06/2021] [Indexed: 12/05/2022] Open
Abstract
Background Neonatal mortality in Guinea accounts for about 30% of all fatalities in children younger than five years. Countrywide, specialized neonatal intensive care is provided in one single clinic with markedly limited resources. To implement targeted measures, prospective data on patient characteristics and factors of neonatal death are needed. Objective To determine the rates of morbidity and mortality, to describe clinical characteristics of admitted newborns requiring intensive care, to assess the quality of disease management, and to identify factors contributing to neonatal mortality. Methods Prospective observational cohort study of newborns admitted to the hospital between mid-February and mid-March 2019 after birth in other institutions. Data were collected on maternal/prenatal history, delivery, and in-hospital care via convenience sampling. Associations of patient characteristics with in-hospital death were assessed using cause-specific Cox proportional-hazards models. Results Half of the 168 admitted newborns underwent postnatal cardiopulmonary resuscitation. Reasons for admission included respiratory distress (49.4%), poor postnatal adaptation (45.8%), prematurity (46.2%), and infections (37.1%). 101 newborns (61.2%) arrived in serious/critical general condition; 90 children (53.9%) showed clinical signs of neurological damage. Quality of care was poor: Only 59.4% of the 64 newborns admitted with hypothermia were externally heated; likewise, 57.1% of 45 jaundiced infants did not receive phototherapy. Death occurred in 56 children (33.3%) due to birth asphyxia (42.9%), prematurity (33.9%), and sepsis (12.5%). Newborns in serious/critical general condition at admission had about a fivefold higher hazard to die than those admitted in good condition (HR 5.21 95%-CI 2.42–11.25, p = <0.0001). Hypothermia at admission was also associated with a higher hazard of death (HR 2.00, 95%-CI 1.10–3.65, p = 0.023). Conclusion Neonatal mortality was strikingly high. Birth asphyxia, prematurity, and infection accounted for 89.3% of death, aggravated by poor quality of in-hospital care. Children with serious general condition at admission had poor chances of survival. The whole concept of perinatal care in Guinea requires reconsideration.
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Affiliation(s)
- Maria Bea Merscher Alves
- Pediatric and Neonatal Intensive Care Unit, Children’s Research Center, University Children’s Hospital Zurich, University of Zurich, Zurich, Switzerland
- * E-mail:
| | - N’Fanly Conté
- Clinic of Neonatology, Institute of Nutrition and Child Health, Conakry, Guinea
| | - Boubacar Diallo
- Clinic of Neonatology, Institute of Nutrition and Child Health, Conakry, Guinea
| | - Moustapha Mamadou
- Clinic of Neonatology, Institute of Nutrition and Child Health, Conakry, Guinea
| | - Albert Delamou
- Clinic of Neonatology, Institute of Nutrition and Child Health, Conakry, Guinea
| | - Oliver John
- Master Program in Biostatistics, University of Zurich, Zurich, Switzerland
| | - Stefanie von Felten
- Department of Biostatistics, Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | | | - Matthias Roth-Kleiner
- Department Woman-Mother-Child, Clinic of Neonatology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
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Schaltz-Buchholzer F, Aaby P, Monteiro I, Camala L, Faurholt Simonsen S, Nørtoft Frankel H, Lindberg Larsen K, Golding CN, Kollmann TR, Amenyogbe N, Stabell Benn C, Bjerregaard-Andersen M. Immediate Bacille Calmette-Guérin vaccination to neonates requiring perinatal treatment at the maternity ward in Guinea-Bissau: A randomized controlled trial. J Infect Dis 2021; 224:1935-1944. [PMID: 33893799 DOI: 10.1093/infdis/jiab220] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 04/19/2021] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Randomized controlled trials (RCTs) indicate that Bacille Calmette-Guérin (BCG) vaccination provides broad beneficial non-specific protection against infections. We investigated the effect on in-hospital mortality of providing BCG immediately upon admission to a neonatal intensive care unit (NICU), rather than BCG-at-discharge. The pre-trial NICU mortality was 13% and we hypothesized that BCG would reduce mortality by 40%. METHODS Parallel-group, open-label RCT initiated in 2013 in Guinea-Bissau. NICU-admitted neonates were randomized 1:1 to BCG+Oral Polio Vaccine (OPV) immediately (intervention) versus BCG+OPV at hospital discharge (control; usual practice). The trial was discontinued due to decreasing in-hospital mortality and major NICU restructuring. We assessed overall and disease-specific mortality by randomization allocation in Cox Proportional Hazards models providing Mortality Rate Ratios (MRRs). RESULTS We recruited 3,353 neonates and the overall mortality was 3.1% (52/1676) for BCG-vaccinated neonates versus 3.3% (55/1677) for controls, MRR=0.94 (0.64-1.36). For non-infectious causes of death the MRR was 1.20 (0.70-2.07) and there tended to be fewer deaths from infections in the BCG group (N=14) than among controls (N=21), MRR=0.65 (0.33-1.28). CONCLUSIONS Providing BCG+OPV to frail neonates was safe and might protect against fatal infection in the immediate newborn period. Deaths due to prematurity and perinatal complications were unaffected by BCG.
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Affiliation(s)
- Frederik Schaltz-Buchholzer
- Bandim Health Project, INDEPTH Network, Bissau, Guinea-Bissau.,Bandim Health Project, OPEN, Department of Clinical Research, Uni. Southern Denmark and Odense University Hospital, Odense, Denmark
| | - Peter Aaby
- Bandim Health Project, INDEPTH Network, Bissau, Guinea-Bissau
| | - Ivan Monteiro
- Bandim Health Project, INDEPTH Network, Bissau, Guinea-Bissau
| | - Luis Camala
- Bandim Health Project, INDEPTH Network, Bissau, Guinea-Bissau
| | | | | | | | | | - Tobias R Kollmann
- Telethon Kids Institute, Subiaco, Australia.,Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Nelly Amenyogbe
- Telethon Kids Institute, Subiaco, Australia.,Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada.,Department of Experimental Medicine, University of British Columbia, Vancouver, Canada NA
| | - Christine Stabell Benn
- Bandim Health Project, INDEPTH Network, Bissau, Guinea-Bissau.,Bandim Health Project, OPEN, Department of Clinical Research, Uni. Southern Denmark and Odense University Hospital, Odense, Denmark.,Danish Institute of Advanced Science, Uni. Southern Denmark, Odense, Denmark
| | - Morten Bjerregaard-Andersen
- Bandim Health Project, INDEPTH Network, Bissau, Guinea-Bissau.,Department of Endocrinology, Hospital of Southwest Denmark, Esbjerg, Denmark.,Steno Diabetes Center, Odense University Hospital, Odense, Denmark
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Eyeberu A, Shore H, Getachew T, Atnafe G, Dheresa M. Neonatal mortality among neonates admitted to NICU of Hiwot Fana specialized university hospital, eastern Ethiopia, 2020: a cross-sectional study design. BMC Pediatr 2021; 21:125. [PMID: 33722200 PMCID: PMC7962329 DOI: 10.1186/s12887-021-02598-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 03/04/2021] [Indexed: 11/24/2022] Open
Abstract
Background In Ethiopia, neonatal mortality is unacceptably high. Despite many efforts made by the government and other partners to reduce neonatal mortality; it has been increasing since 2014. Factors associated with neonatal mortality were explained by different researchers indifferently. There is no clear evidence to identify the magnitude of neonatal mortality and associated factors in the study area. The study aimed to assess the magnitude and factors associated with neonatal mortality. Methods Facility-based cross-sectional study was conducted among 834 randomly selected neonates. The study was conducted from February 20 to March 21, 2020. Data were extracted from medical records using a checklist adapted from the World Health Organization, and neonatal registration book. The data were inserted into Epi-data version 3.1 and then exported into SPSS window version 20 for analysis. Bivariate and multivariate analyses were employed to identify the association between independent variables and the outcome variable. Results Magnitude of neonatal mortality was 14.4% (95% CI:11.9,16.7). Being neonates of mothers whose pregnancy was complicated with antepartum hemorrhage [AOR = 4.13, 95%CI: (1.92,8.85)], born from mothers with current pregnancy complicated with pregnancy-induced hypertension [AOR = 4.41, 95%CI: (1.97,9.86)], neonates of mothers with multiple pregnancy [AOR = 2.87, 95% CI (1.08,7.61)], neonates delivered at the health center [AOR = 5.05, 95%CI: (1.72,14.79)], low birth weight [AOR = 4.01, 95%CI (1.30,12.33)], having perinatal asphyxia [AOR =3.85, 95%CI: (1.83,8.10)], and having early-onset neonatal sepsis [AOR = 3.93, 95%CI: (1.84,8.41)] were factors significantly associated with neonatal mortality. Conclusion The proportion of neonatal mortality was relatively in line with other studies but still needs attention. Antepartum hemorrhage, Pregnancy-induced hypertension, place of delivery, low birth weight, having perinatal asphyxia, and having neonatal sepsis were independent factors. The hospital, and health care workers should give attention to neonates admitted to intensive care units by strengthening the quality of care given at neonatal intensive care unit like infection prevention and strengthening early detection and treatment of health problems during Antenatal care visit.
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Affiliation(s)
- Addis Eyeberu
- Department of Midwifery, School of Nursing and Midwifery, College of Health and Medical Sciences, Haramaya University, P.O. BOX 138, Dire Dawa, Harar, Ethiopia.
| | - Hirpo Shore
- Department of Epidemiology, School of Public Health, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia
| | - Tamirat Getachew
- Department of Midwifery, School of Nursing and Midwifery, College of Health and Medical Sciences, Haramaya University, P.O. BOX 138, Dire Dawa, Harar, Ethiopia
| | - Genanaw Atnafe
- Department of Pediatrics, School of Nursing and Midwifery, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia
| | - Merga Dheresa
- School of Nursing and Midwifery, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia
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Golding CN, Schaltz-Buchholzer F, Sanca L, Clipet-Jensen C, Benn CS, Au N, Chipperfield K, Kollmann TR, Amenyogbe NA. Feasibility of manual white blood cell counts as a predictor of neonatal sepsis in a low-resource setting. Trans R Soc Trop Med Hyg 2020; 114:566-574. [PMID: 32333010 DOI: 10.1093/trstmh/traa023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 02/17/2020] [Accepted: 03/13/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Manual white blood cell (WBC) differential counts as a predictor for neonatal sepsis development in a low-resource setting have not been thoroughly evaluated. We hypothesized that manual differentiation (specifically immature:total [I:T] neutrophil ratios) would be feasible and useful as an adjunct to predict early-onset neonatal sepsis (EONS). Secondarily, we hypothesized that vaccination with bacillus Calmette-Guérin (BCG) and oral polio vaccine (OPV) could alter WBC differential counts and thus might reduce its predictive performance. METHODS We performed a prospective cohort study within a randomized trial, randomizing healthy, high-risk newborns admitted to the nursery at the national hospital in Guinea-Bissau 1:1 to BCG+OPV at admission or at discharge (usual practice). Thin capillary blood films were prepared at 2 d of age in a subset of 268 neonates. WBC counts were assessed by microscopy and neonates were followed up for sepsis development within 2 weeks. RESULTS Ninety-eight percent (264/268) of smears provided interpretable reads. Of the 264 children, 136 had been randomized to receive BCG+OPV prior to sampling; the remaining 128 were vaccinated at discharge. The I:T ratio (average 0.017) was lower among children who did not develop clinical sepsis but did not predict sepsis (p=0.70). Only three children had an I:T ratio >0.2 (associated with a higher probability of clinical sepsis in previous studies) but did not develop sepsis. Immunization did not alter WBC composition. CONCLUSIONS Manual WBC differentials are feasible in low-resource settings. WBC differentials are not affected by standard newborn immunization. However, the I:T ratio had no value in predicting subsequent development of sepsis.
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Affiliation(s)
- Christian N Golding
- Bandim Health Project, Indepth Network, Apartado 861, Bissau 1004, Guinea-Bissau
- Institute of Health, Aarhus University, Nordre Ringgade 1, Aarhus C 8000, Denmark
- Research Center for Vitamins and Vaccines, Statens Serum Institut, Artillerivej 5, Copenhagen S 2300, Denmark
| | - Frederik Schaltz-Buchholzer
- Bandim Health Project, Indepth Network, Apartado 861, Bissau 1004, Guinea-Bissau
- Research Center for Vitamins and Vaccines, Statens Serum Institut, Artillerivej 5, Copenhagen S 2300, Denmark
- OPEN, Department of Clinical Research, University of Southern Denmark, and Odense University Hospital, J.B. Winsløws Vej 9A, Odense C 5000, Denmark
| | - Lilica Sanca
- Bandim Health Project, Indepth Network, Apartado 861, Bissau 1004, Guinea-Bissau
| | - Clara Clipet-Jensen
- Research Center for Vitamins and Vaccines, Statens Serum Institut, Artillerivej 5, Copenhagen S 2300, Denmark
| | - Christine S Benn
- Bandim Health Project, Indepth Network, Apartado 861, Bissau 1004, Guinea-Bissau
- Research Center for Vitamins and Vaccines, Statens Serum Institut, Artillerivej 5, Copenhagen S 2300, Denmark
- OPEN, Department of Clinical Research, University of Southern Denmark, and Odense University Hospital, J.B. Winsløws Vej 9A, Odense C 5000, Denmark
| | - Nicholas Au
- Department of Pathology and Laboratory Medicine, University of British Columbia, Rm. G227-2211 Wesbrook Mall, Vancouver, BC Canada V6T 2B5
| | - Kate Chipperfield
- Department of Pathology and Laboratory Medicine, University of British Columbia, Rm. G227-2211 Wesbrook Mall, Vancouver, BC Canada V6T 2B5
| | - Tobias R Kollmann
- Department of Pediatrics, University of British Columbia, Rm 2D19, 4480 Oak Street, Vancouver, BC Canada V6H 3V4
| | - Nelly A Amenyogbe
- Department of Experimental Medicine, University of British Columbia, 2775 Laurel Street, Vancouver, BC Canada V5Z 1M9
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The Guinea-Bissau Twin Registry Update: A Platform for Studying Twin Mortality and Metabolic Disease. Twin Res Hum Genet 2019; 22:554-560. [PMID: 31317858 DOI: 10.1017/thg.2019.39] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Sub-Saharan Africa has the highest natural twinning rate in the world. Unfortunately, due to lack of adequate care during pregnancy, labor and postnatally, twin mortality in Sub-Saharan Africa also remains very high. Thus, it has been estimated that one in five twins dies during the childhood years. In spite of this, surprisingly few twin studies have been conducted in the region, making additional epidemiological data much needed. In 2009, we established one of the first twin registries in Sub-Saharan Africa at the Bandim Health Project in Guinea-Bissau. The registry had two main objectives. First, we wanted to describe the twinning rate and mortality patterns among newborn twins, including mortality risk factors and hospitalization patterns. Such studies can help the local clinicians improve twin health by identifying the most vulnerable children. Second, and in light of the rapidly increasing diabetes rates in Africa, we wanted to use the registry to particularly focus on metabolic disorders. Twins are often born with low birth weight, which according to the 'thrifty phenotype hypothesis' could predispose them to metabolic disorders later in life. Yet, no such 'fetal programming' data have previously been available from African twins despite the fact that nutritional patterns and influences from other factors (e.g., infections) could be markedly different here compared to high-income settings. In this article, we summarize the findings and current status of the Guinea-Bissau twin registry.
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10
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Cherif MS, Dahal P, Mansoor R, Camara F, Bah A, Kone A, Cherif F, Kasse D, Diakite M, Diallo MP. Morbidity and mortality outcomes in neonates who were transferred from home and hospitals to the only neonatal intensive care unit in Guinea: a descriptive report using routinely collected health data. Int Health 2019; 11:455-462. [DOI: 10.1093/inthealth/ihz001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 12/03/2018] [Accepted: 01/02/2019] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
The Sustainable Development Goal (SDG) for neonatal mortality has identified its reduction as one of the main targets to be achieved by 2030. We provide a descriptive report on neonatal outcomes from the only neonatal intensive care unit (NICU) in Guinea.
Methods
Data collection took place between November 2004 and May 2005 at the NICU of the Institute of Child Health in the capital, Conakry. A descriptive summary of the neonatal, maternal and intrapartum characteristics is reported.
Results
A total of 294 neonates were admitted to the NICU incubators during the study period, transferred either from hospitals (48%) or directly from their homes (52%). The most common reasons for admission were foetal distress (37.1%) and maternal–foetal infections (35.4%). Among 270 neonates with known outcome, the overall mortality among the admitted children remained high at 20.7% (56/270),with a large proportion of the deaths (71.4%, 40/56) occurring within 7 d of their admission. The mortality rate was 23.7% (31/131) among the neonates who were admitted to our NICU after home birth and 17.9% (25/139) among those who were transferred from hospitals (OR: 1.41, 95% CI: 0.75–2.67).
Conclusion
Almost one in every five neonates who were admitted to the NICU incubator died during the study period. More hospitals equipped with NICU facilities are urgently required if Guinea is to achieve the SDG target for neonatal mortality.
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Affiliation(s)
- Mahamoud Sama Cherif
- Faculty of Medicine Pharmacy and Odontostomatology, Gamal Abdel Nasser University of Conakry, BP 1147, Conakry, Guinea
- Centre for Tropical Medicine & Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, OX3 7FZ, UK
| | - Prabin Dahal
- Centre for Tropical Medicine & Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, OX3 7FZ, UK
| | - Rashid Mansoor
- Centre for Tropical Medicine & Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, OX3 7FZ, UK
| | - Facely Camara
- Faculty of Medicine Pharmacy and Odontostomatology, Gamal Abdel Nasser University of Conakry, BP 1147, Conakry, Guinea
| | - Abdourahamane Bah
- Faculty of Medicine Pharmacy and Odontostomatology, Gamal Abdel Nasser University of Conakry, BP 1147, Conakry, Guinea
| | - Alpha Kone
- Faculty of Medicine Pharmacy and Odontostomatology, Gamal Abdel Nasser University of Conakry, BP 1147, Conakry, Guinea
| | - Fatoumata Cherif
- Faculty of Medicine Pharmacy and Odontostomatology, Gamal Abdel Nasser University of Conakry, BP 1147, Conakry, Guinea
| | - Dienaba Kasse
- Faculty of Medicine Pharmacy and Odontostomatology, Gamal Abdel Nasser University of Conakry, BP 1147, Conakry, Guinea
| | - Mandiou Diakite
- Faculty of Medicine Pharmacy and Odontostomatology, Gamal Abdel Nasser University of Conakry, BP 1147, Conakry, Guinea
| | - Mamadou Pathe Diallo
- Faculty of Medicine Pharmacy and Odontostomatology, Gamal Abdel Nasser University of Conakry, BP 1147, Conakry, Guinea
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