57 results on '"Ballot DE"'
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2. Multicentre external validation of the Neonatal Healthcare-associated infectiOn Prediction (NeoHoP) score: a retrospective case-control study.
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Lloyd LG, Dramowski A, Bekker A, Ballot DE, Ferreyra C, Gleeson B, Nana T, Sharland M, Velaphi SC, Wadula J, Whitelaw A, and van Weissenbruch MM
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- Humans, Infant, Newborn, Female, Case-Control Studies, Retrospective Studies, Male, South Africa epidemiology, Neonatal Sepsis diagnosis, Neonatal Sepsis microbiology, Neonatal Sepsis epidemiology, Intensive Care Units, Neonatal, ROC Curve, Birth Weight, Sensitivity and Specificity, Gestational Age, Predictive Value of Tests, Infant Mortality, Cross Infection diagnosis, Cross Infection epidemiology
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Background and Objectives: Neonatal mortality due to severe bacterial infections is a pressing global issue, especially in low-middle-income countries (LMICs) with constrained healthcare resources. This study aims to validate the Neonatal Healthcare-associated infectiOn Prediction (NeoHoP) score, designed for LMICs, across diverse neonatal populations., Methods: Prospective data from three South African neonatal units in the Neonatal Sepsis Observational (NeoOBS) study were analysed. The NeoHoP score, initially developed and validated internally in a South African hospital, was assessed using an external cohort of 573 sepsis episodes in 346 infants, focusing on different birth weight categories. Diagnostic metrics were evaluated, including sensitivity, specificity, positive predictive value and area under the receiver operating characteristic curve., Results: The external validation cohort displayed higher median birth weight and gestational age compared with the internal validation cohort. A significant proportion were born before reaching healthcare facilities, resulting in increased sepsis evaluation, and diagnosed healthcare-associated infections (HAIs). Gram-negative infections predominated, with fungal infections more common in the external validation cohort.The NeoHoP score demonstrated robust diagnostic performance, with 92% specificity, 65% sensitivity and a positive likelihood ratio of 7.73. Subgroup analysis for very low birth weight infants produced similar results. The score's generalisability across diverse neonatal populations was evident, showing comparable performance across different birth weight categories., Conclusion: This multicentre validation confirms the NeoHoP score as a reliable 'rule-in' test for HAI in neonates, regardless of birth weight. Its potential as a valuable diagnostic tool in LMIC neonatal units addresses a critical gap in neonatal care in low-resource settings., Competing Interests: Competing interests: No, there are no competing interests., (© Author(s) (or their employer(s)) 2024. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
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- 2024
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3. Neonatal encephalopathy due to suspected hypoxic ischemic encephalopathy: pathophysiology, current, and emerging treatments.
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Babbo CC, Mellet J, van Rensburg J, Pillay S, Horn AR, Nakwa FL, Velaphi SC, Kali GTJ, Coetzee M, Masemola MYK, Ballot DE, and Pepper MS
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Background: Neonatal encephalopathy (NE) due to suspected hypoxic-ischemic encephalopathy (HIE), referred to as NESHIE, is a clinical diagnosis in late preterm and term newborns. It occurs as a result of impaired cerebral blood flow and oxygen delivery during the peripartum period and is used until other causes of NE have been discounted and HIE is confirmed. Therapeutic hypothermia (TH) is the only evidence-based and clinically approved treatment modality for HIE. However, the limited efficacy and uncertain benefits of TH in some low- to middle-income countries (LMICs) and the associated need for intensive monitoring have prompted investigations into more accessible and effective stand-alone or additive treatment options., Data Sources: This review describes the rationale and current evidence for alternative treatments in the context of the pathophysiology of HIE based on literatures from Pubmed and other online sources of published data., Results: The underlining mechanisms of neurotoxic effect, current clinically approved treatment, various categories of emerging treatments and clinical trials for NE are summarized in this review. Melatonin, caffeine citrate, autologous cord blood stem cells, Epoetin alfa and Allopurinal are being tested as potential neuroprotective agents currently., Conclusion: This review describes the rationale and current evidence for alternative treatments in the context of the pathophysiology of HIE. Neuroprotective agents are currently only being investigated in high- and middle-income settings. Results from these trials will need to be interpreted and validated in LMIC settings. The focus of future research should therefore be on the development of inexpensive, accessible monotherapies and should include LMICs, where the highest burden of NESHIE exists., (© 2024. The Author(s).)
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- 2024
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4. Improved survival of children and adolescents with classical Hodgkin lymphoma treated on a harmonised protocol in South Africa.
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Geel J, van Zyl A, Plessis JD, Hendricks M, Goga Y, Carr A, Neethling B, Hramyka A, Omar F, Mathew R, Louw L, Naidoo T, Ngcana T, Schickerling T, Netshituni V, Madzhia E, du Plessis L, Kelsey T, Ballot DE, and Metzger ML
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- Humans, Child, Adolescent, South Africa epidemiology, Dacarbazine, Vinblastine, Bleomycin, Doxorubicin, Antineoplastic Combined Chemotherapy Protocols adverse effects, Prednisone, Vincristine, Hodgkin Disease drug therapy, Hodgkin Disease pathology, HIV Infections drug therapy
- Abstract
Background: Historic South African 5-year overall survival (OS) rates for Hodgkin lymphoma (HL) from 2000 to 2010 were 46% and 84% for human immunodeficiency virus (HIV)-positive and HIV-negative children, respectively. We investigated whether a harmonised treatment protocol using risk stratification and response-adapted therapy could increase the OS of childhood and adolescent HL., Methods: Seventeen units prospectively enrolled patients less than 18 years, newly diagnosed with classical HL onto a risk-stratified, response-adapted treatment protocol from July 2016 to December 2022. Low- and intermediate-risk patients received four and six courses of adriamycin, bleomycin, vinblastine, and dacarbazine (ABVD), respectively. High-risk patients received two courses of ABVD, followed by four courses of cyclophosphamide, vincristine, prednisone, and dacarbazine (COPDac). Those with a slow early response and bulky disease received consolidation radiotherapy. HIV-positive patients could receive granulocyte colony-stimulating factor and less intensive therapy if stratified as high risk, at the treating clinician's discretion. Kaplan-Meier survival analysis was performed to determine 2-year OS and Cox regression to elucidate prognostic factors., Results: The cohort comprised 132 patients (19 HIV-positive, 113 HIV-negative), median age of 9.7 years, with a median follow-up of 2.2 years. Risk grouping comprised nine (7%) low risk, 36 (27%) intermediate risk and 87 (66%) high risk, with 71 (54%) rapid early responders and 45 (34%) slow early responders, and 16 (12%) undocumented. Two-year OS was 100% for low-risk, 93% for intermediate-risk, and 91% for high-risk patients. OS for HIV-negative (93%) and HIV-positive (89%) patients were similar (p = .53). Absolute lymphocyte count greater than 0.6 × 10
9 predicted survival (94% vs. 83%, p = .02)., Conclusion: In the first South African harmonised HL treatment protocol, risk stratification correlated with prognosis. Two-year OS of HIV-positive and HIV-negative patients improved since 2010, partially ascribed to standardised treatment and increased supportive care. This improved survival strengthens the harmonisation movement and gives hope that South Africa will achieve the WHO Global Initiative for Childhood Cancer goals., (© 2023 The Authors. Pediatric Blood & Cancer published by Wiley Periodicals LLC.)- Published
- 2024
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5. A Retrospective Observational Study of the Impact of HIV Status on the Outcome of Paediatric Intensive Care Unit Admissions at a Tertiary Hospital in South Africa (2015-2019).
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Whitehead K and Ballot DE
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HIV-infected and HIV-exposed but uninfected (HEU) children have unique health risks. Our study looked at how HIV exposure and infection impact presentation and outcomes in PICU in an era of improved ART. A retrospective analysis of children admitted to PICU was performed. The sample was divided into HIV negative, HEU and HIV infected, and presentation and outcomes were compared with a significance level set at α = 0.05. Our study showed that 16% (109/678) of children admitted to PICU were HEU and 5.2% (35/678) were HIV infected. HIV-infected children were admitted at a younger age (median two months) with an increased incidence of lower respiratory infections than HIV-negative children ( p < 0.001); they also required longer ventilation and admission ( p < 0.001). HIV-infected children had a higher mortality (40%) ( p = 0.02) than HIV-negative (22.7%) children; this difference was not significant when comparing only children with a non-surgical diagnosis ( p = 0.273). HEU children had no significant difference in duration of ICU stay ( p = 0.163), ventilation ( p = 0.443) or mortality ( p = 0.292) compared to HIV-negative children. In conclusion, HIV-infected children presented with more severe disease requiring longer ventilation and admission. HEU had similar outcomes to HIV-negative children.
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- 2023
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6. SACCSG HL-2018. Barriers and enablers of a harmonized treatment protocol for childhood and adolescent Hodgkin lymphoma in South Africa.
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Geel J, Hendricks M, Goga Y, Neethling B, Netshituni V, Mathew R, Vermeulen J, van Zyl A, Omar F, du Plessis J, du Plessis L, Madzhia E, Ngcana T, Naidoo T, Louw L, Ballot DE, and Metzger ML
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- Child, Humans, Adolescent, South Africa, Positron Emission Tomography Computed Tomography, Disease-Free Survival, Clinical Protocols, Multicenter Studies as Topic, Hodgkin Disease drug therapy, Hodgkin Disease pathology
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Introduction: Collaborative studies have contributed to improved survival of pediatric Hodgkin lymphoma in well-resourced settings, but few are documented in resource-constrained countries. The South Africa Children's Cancer Study Group initiated harmonization of management protocols in 2015. This article analyzes barriers and enablers of the process. Methods: Clinician-researchers at 11 state-funded pediatric oncology units completed preparatory questionnaires in June 2018. Parameters included infrastructure, access to therapeutic modalities and clinician numbers. A reassessment of 13 sites (two new pediatric oncology unit) in February 2021 ascertained changes in resources and identified challenges to full participation. Questions investigated the presence and quality of diagnostic radiology, availability of surgeons, cytology/pathology options and hematology laboratory facilities. Results: The response rate was 11/11 to survey 1 and 13/13 to survey 2. The anticipated pre-study barriers to participation of pediatric oncology units included time constraints and understaffing. PET-CT was unavailable to two centers. The majority of pediatric oncology units met the minimum criteria to participate. The interim survey confirmed chemotherapy and radiotherapy availability nearly 100% of the time. One site reported improved access to radiotherapy while another reported improved access to PET-CT. Barriers to participation included excessive times to obtain regulatory approvals, time constraints and lack of dedicated research staff. Enablers include the simple management algorithm and communication tools. Conclusion: This study demonstrates that multicenter collaboration and harmonization of management protocols are achievable in a middle-income setting. Minimal funding is required but full participation to run high-quality studies requires more financial investment. Focused funding and increased prioritization of research may address systemic barriers to full participation.
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- 2023
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7. A review of necrotising enterocolitis in very low birth weight babies in a tertiary hospital in Johannesburg.
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Motsisim S and Ballot DE
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- Infant, Female, Pregnancy, Infant, Newborn, Humans, Tertiary Care Centers, Cross-Sectional Studies, Retrospective Studies, South Africa epidemiology, Infant, Very Low Birth Weight, Observational Studies as Topic, Enterocolitis, Necrotizing complications, Enterocolitis, Necrotizing epidemiology, HIV Infections
- Abstract
Introduction: Necrotising enterocolitis (NEC) is the most common gastrointestinal complication in pre-mature infants. There are risk factors and modifying factors that have been identified and studied over the years, but not many studies have been conducted in middle-income countries., Aims and Objectives: This study aimed to describe the maternal, obstetric and neonatal characteristics in very low birth weight (VLBW) babies with NEC in a tertiary neonatal unit in South Africa. The survival to hospital discharge in VLBW babies with NEC was also determined., Materials and Methods: This study was a retrospective, cross-sectional, observational study of VLBW babies admitted to a tertiary neonatal unit between January 2013 and December 2017. The population comprised babies <1500 g and <37 weeks gestation. Maternal and neonatal risk factors of NEC were compared in infants with and without NEC., Results: In this study, 173 out of 2111 (8%) babies were diagnosed with NEC. HIV exposure, late-onset sepsis, respiratory support after initial resuscitation, administration of surfactant and blood transfusion were associated with NEC. Surgery was performed in 48/173 (27.7%) of babies with NEC. The mortality rate in babies with NEC was 49.1%. Death in babies with NEC was associated with surgery for NEC (P = 0.01), mechanical ventilation (P < 0.001) and late-onset sepsis (P = 0.018)., Conclusion: Risk factors for NEC in our population are similar to other countries, with some variations such as HIV. Even though some prevention measures have been implemented, the mortality rate remains high., Competing Interests: None
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- 2023
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8. Factors influencing survival and short-term outcomes of very low birth weight infants in a tertiary hospital in Johannesburg.
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Ingemyr K, Elfvin A, Hentz E, Saggers RT, and Ballot DE
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Background: The neonatal mortality rate in South Africa is lower than the global average, but still approximately five times higher than some European and Scandinavian countries. Prematurity, and its complications, is the main cause (35%) of neonatal deaths., Objective: To review the maternal, delivery period and infant characteristics in relation to mortality in very low birth weight (VLBW) infants at Charlotte Maxeke Johannesburg Academic Hospital (CMJAH)., Methods: This was a retrospective descriptive study of VLBW infants admitted to CMJAH between 1 January 2017 and 31 December 2018. All infants with a birth weight between 500 to ≤ 1,500 grams were included. The characteristics and survival of these infants were described using univariate analysis., Results: Overall survival was 66.5%. Provision of antenatal steroids, antenatal care, Cesarean section, female sex, resuscitation at birth, and 5-min Apgar score more than five was related with better survival to discharge. Among respiratory diagnoses, 82.8% were diagnosed with RDS, 70.8% received surfactant therapy and 90.7% received non-invasive respiratory support after resuscitation. At discharge, 59.5% of the mothers were breastfeeding and 30.8% spent time in kangaroo mother care., Conclusion: The two-thirds survival rate of VLBW infants is similar to those in other developing countries but still remains lower than developed countries. This may be improved with better antenatal care attendance, coverage of antenatal steroids, temperature control after birth, improving infection prevention and control practices, breastfeeding rates and kangaroo mother care. The survival rate was lowest amongst extremely low birth weight (ELBW) infants., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Ingemyr, Elfvin, Hentz, Saggers and Ballot.)
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- 2022
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9. Neurodevelopmental Outcomes of Extremely Low Birth Weight Survivors in Johannesburg, South Africa.
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Ramdin TD, Saggers RT, Bandini RM, Magadla Y, Mphaphuli AV, and Ballot DE
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Background: Improved survival in extremely low birth weight infants (ELBWI) in Sub-Saharan Africa has raised the question whether these survivors have an increased chance of adverse neurodevelopmental outcomes., Objectives: To describe neurodevelopmental outcomes of ELBWI in a neonatal unit in South Africa., Methods: This was a prospective follow-up study. All ELBWI who survived to discharge between 1 July 2013 and 31 December 2017 were invited to attend the clinic. Bayley Scales of Infant and Toddler Development (version III) were conducted at 9 to 12 months and 18 to 24 months., Results: There were 723 ELBWI admissions during the study period, 292 (40.4%) survived to hospital discharge and 85/292 (29.1%) attended the neonatal follow up clinic. The mean birth weight was 857.7 g (95% CI: 838.2-877.2) and the mean gestational age was 27.5 weeks (95% CI 27.1-27.9). None of the infants had any major complication of prematurity. A total of 76/85 (89.4%) of the infants had a Bayley-III assessment at a mean corrected age of 17.21 months (95% CI: 16.2-18.3). The mean composite scores for cognition were 98.4 (95% CI 95.1-101.7), language 89.9 (95% CI 87.3-92.5) and motor 97.6 (95% CI 94.5-100.6). All mean scores fell within the normal range, The study found 28 (36.8%) infants to be " at risk " for neurodevelopmental delay., Conclusion: Our study demonstrates good neurodevelopmental outcome in a small group of surviving ELBWI, but these results must be interpreted in the context of the high mortality in this group of infants., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Ramdin, Saggers, Bandini, Magadla, Mphaphuli and Ballot.)
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- 2022
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10. Therapeutic hypothermia for neonatal hypoxic ischaemic encephalopathy should not be discontinued in low- and middle-income countries.
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Ballot DE, Ramdin TD, Bandini RM, Nakwa F, Velaphi S, Coetzee M, Masemola K, Kali GJD, Horn AR, Pillay S, Van Rensburg J, and Pepper MS
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- Humans, Infant, Newborn, South Africa, Developing Countries, Hypothermia, Induced, Hypoxia-Ischemia, Brain therapy, Infant, Newborn, Diseases therapy
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- 2021
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11. Prognostic factors affecting survival in children and adolescents with HIV and Hodgkin lymphoma in South Africa.
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Geel JA, Eyal KC, Hendricks MG, Myezo KH, Stones DK, Omar F, Goga Y, van Zyl A, van Emmenes B, Vaithilingum M, Irusen S, Bandini RM, Wedi O, Rowe B, Ballot DE, and Metzger ML
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- Adolescent, Child, Humans, Prognosis, Retrospective Studies, South Africa epidemiology, HIV Infections complications, Hodgkin Disease diagnosis, Hodgkin Disease therapy
- Abstract
South African children with Hodgkin lymphoma (HL) and human immunodeficiency virus (HIV) have low 5-year overall survival (OS) rates. In this retrospective multicenter study, 271 South African pediatric patients with HL were studied to determine OS and prognostic factors in those with HIV and HL. Univariate risk factor analysis was performed to analyze prognostic factors. The 29 HIV-infected patients were younger ( p = .021), more likely to present with wasting (0.0573), stunting (0.0332), and Stage IV disease ( p = .000) than HIV-uninfected patients. The 5- and 10-year OS of HIV-infected patients of 49% and 45% versus 84% and 79%, respectively for HIV-uninfected patients ( p = .0001) appeared to be associated with hypoalbuminemia (<20 g/dL) and CD4 percentage of <15%. Causes of death in the HIV-infected group included disease progression (6/14), infection (4/14), unknown (3/14), and second malignancy (1/14). HIV-infected pediatric patients with HL experience increased mortality due to post-therapy opportunistic and nosocomial infections.
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- 2021
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12. The effects of exposure to HIV in neonates at a referral hospital in South Africa.
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Mellqvist H, Saggers RT, Elfvin A, Hentz E, and Ballot DE
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- Female, Hospitals, Humans, Infant, Infant, Newborn, Infectious Disease Transmission, Vertical, Pregnancy, Prospective Studies, Referral and Consultation, Retrospective Studies, South Africa epidemiology, HIV Infections epidemiology, Pregnancy Complications, Infectious epidemiology
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Background: Fewer infants are infected with HIV through mother-to-child transmission, making HIV-exposed but uninfected (HEU) infants a growing population. HIV-exposure seems to affect immunology, early growth and development, and is associated with higher morbidity and mortality rates. Currently, there is a lack of information regarding the clinical effects of HIV-exposure during the neonatal period., Objectives: To identify a possible difference in mortality and common neonatal morbidities in HEU neonates compared to HIV-unexposed neonates., Methods: This was a retrospective, descriptive study of all neonates admitted to the neonatal unit at Charlotte Maxeke Johannesburg Academic Hospital between 1 January 2017 and 31 December 2018. HEU neonates were compared to HIV-unexposed neonates., Results: There were 3236 neonates included, where 855 neonates were HEU. The HEU neonates had significantly lower birth weight and gestational age. The HEU neonates had higher rates of neonatal sepsis (19.8% vs 14.2%, OR 1.49, p < 0.001), specifically for late onset sepsis, and required more respiratory support. NCPAP and invasive ventilation was more common in the HEU group (36.3% vs 31.3% required NCPAP, p = 0.008, and 20.1% vs 15,0% required invasive ventilation, p < 0.001). Chronic lung disease was more common among HIV-exposed neonates (12.2% vs 8.7%, OR 1.46, p = 0.003). The difference in mortality rates between the study groups was not significant (10.8% of HEU neonates and 13.3% of HIV-unexposed)., Conclusions: HEU neonates had higher rates of neonatal sepsis, particularly late-onset sepsis, required more respiratory support and had higher rates of chronic lung disease. Mortality of HEU neonates was not different HIV-unexposed neonates., (© 2021. The Author(s).)
- Published
- 2021
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13. An analysis of neonates with surgical diagnoses admitted to the neonatal intensive care unit at Charlotte Maxeke Johannesburg Academic Hospital, South Africa.
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Saggers RT, Ballot DE, and Grieve A
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- Female, Humans, Infant, Infant, Newborn, Male, Retrospective Studies, South Africa epidemiology, Survival Rate, Infant Mortality, Infant, Newborn, Diseases mortality, Infant, Newborn, Diseases surgery, Intensive Care Units, Neonatal statistics & numerical data
- Abstract
Background: The burden of neonatal surgical conditions is not well documented in low- to middle-income countries (LMICs). These conditions are thought to be relatively common, with a considerable proportion of neonates admitted to the neonatal intensive care unit (NICU) requiring surgical intervention., Objectives: To review neonates with surgical conditions admitted to the NICU in our hospital setting., Methods: This was a retrospective, descriptive study of neonates with surgical conditions admitted to the NICU at Charlotte Maxeke Johannesburg Academic Hospital (CMJAH), South Africa, between 1 January 2013 and 31 December 2015. The characteristics and survival of these neonates were described using univariate analysis. The NICU at CMJAH is combined with a paediatric intensive care unit, to a total of 15 beds, and serves as a referral unit., Results: Of 923 neonates admitted to the NICU, 319 (34.6%) had primarily surgical conditions. Of these 319 neonates, 205 survived (64.3%). There were 125/319 neonates (39.2%) with necrotising enterocolitis (NEC), 55 of whom survived (55/125; 44.0%), making the presence of NEC significantly associated with poor outcome (p<0.001). Other significant predictors of poor outcome were the patient being outborn (p=0.029); the presence of late-onset sepsis (p<0.001), with Gram-negative organisms (p=0.005); and lesser gestational age (p=0.001) and lower birth weight (p<0.001). Major birth defects were present in 166/319 neonates (52.0%). The abdomen was the most prevalent site of surgery, with 216/258 procedures (83.7%) being abdominal, resulting in a mortality rate of 76/216 (35.2%)., Conclusions: Neonates with major surgical conditions accounted for one-third of NICU admissions in the present study. The study highlights the considerable burden placed on paediatric surgical services at a large referral hospital in SA. Paediatric surgical services, with early referral and improvement of neonatal transport systems, must be a priority in planned healthcare interventions to reduce neonatal mortality in LMICs.
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- 2020
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14. A prospective observational study of developmental outcomes in survivors of neonatal hypoxic ischaemic encephalopathy in South Africa.
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Ballot DE, Rakotsoane D, Cooper PA, Ramdin TD, Chirwa T, and Pepper MS
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- Case-Control Studies, Cerebral Palsy physiopathology, Developmental Disabilities physiopathology, Female, Humans, Hypothermia, Induced, Hypoxia-Ischemia, Brain therapy, Infant, Infant, Newborn, Infant, Newborn, Diseases, Language Development Disorders physiopathology, Male, Prospective Studies, Severity of Illness Index, South Africa epidemiology, Cerebral Palsy epidemiology, Child Development, Developmental Disabilities epidemiology, Hypoxia-Ischemia, Brain epidemiology, Language Development Disorders epidemiology
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Background: Neonatal hypoxic ischaemic encephalopathy (NHIE) is an important cause of long-term handicap in survivors. There is limited information on the burden of handicap from NHIE in sub-Saharan Africa., Objectives: To determine the developmental outcomes in survivors of NHIE in South Africa (SA)., Methods: In this prospective observational study, the developmental outcomes in 84 infants who had survived hypoxic ischaemic encephalopathy (the NHIE group) were compared with those in 64 unaffected infants (the control group). The Bayley Scales of Infant Development version III were used for assessment of developmental outcomes., Results: Significant differences were found between the developmental outcomes of the two groups, with a significantly lower composite language score and higher proportions with language, motor and cognitive developmental delays in the NHIE group than in the control group. Cerebral palsy (CP) was present in 13 of the infants with NHIE (15.5%) and none in the control group (p<0.001). CP was associated with developmental delay, and also with the severity of NHIE. Therapeutic hypothermia (TH) was administered in 58.3% of the study group, but although it was associated with lower rates of CP and developmental delay than in the group without TH, the only significant difference was for delay on the language subscale., Conclusions: Survivors of NHIE in SA are at risk of poor developmental outcomes.
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- 2020
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15. Towards understanding global patterns of antimicrobial use and resistance in neonatal sepsis: insights from the NeoAMR network.
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Li G, Bielicki JA, Ahmed ASMNU, Islam MS, Berezin EN, Gallacci CB, Guinsburg R, da Silva Figueiredo CE, Santarone Vieira R, Silva AR, Teixeira C, Turner P, Nhan L, Orrego J, Pérez PM, Qi L, Papaevangelou V, Triantafyllidou P, Iosifidis E, Roilides E, Sarafidis K, Jinka DR, Nayakanti RR, Kumar P, Gautam V, Prakash V, Seeralar A, Murki S, Kandraju H, Singh S, Kumar A, Lewis L, Pukayastha J, Nangia S, K N Y, Chaurasia S, Chellani H, Obaro S, Dramowski A, Bekker A, Whitelaw A, Thomas R, Velaphi SC, Ballot DE, Nana T, Reubenson G, Fredericks J, Anugulruengkitt S, Sirisub A, Wong P, Lochindarat S, Boonkasidecha S, Preedisripipat K, Cressey TR, Paopongsawan P, Lumbiganon P, Pongpanut D, Sukrakanchana PO, Musoke P, Olson L, Larsson M, Heath PT, and Sharland M
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- Developing Countries statistics & numerical data, Drug Resistance, Bacterial, Global Health statistics & numerical data, Humans, Infant, Newborn, Surveys and Questionnaires, Anti-Infective Agents therapeutic use, Neonatal Sepsis drug therapy
- Abstract
Objective: To gain an understanding of the variation in available resources and clinical practices between neonatal units (NNUs) in the low-income and middle-income country (LMIC) setting to inform the design of an observational study on the burden of unit-level antimicrobial resistance (AMR)., Design: A web-based survey using a REDCap database was circulated to NNUs participating in the Neonatal AMR research network. The survey included questions about NNU funding structure, size, admission rates, access to supportive therapies, empirical antimicrobial guidelines and period prevalence of neonatal blood culture isolates and their resistance patterns., Setting: 39 NNUs from 12 countries., Patients: Any neonate admitted to one of the participating NNUs., Interventions: This was an observational cohort study., Results: The number of live births per unit ranged from 513 to 27 700 over the 12-month study period, with the number of neonatal cots ranging from 12 to 110. The proportion of preterm admissions <32 weeks ranged from 0% to 19%, and the majority of units (26/39, 66%) use Essential Medicines List 'Access' antimicrobials as their first-line treatment in neonatal sepsis. Cephalosporin resistance rates in Gram-negative isolates ranged from 26% to 84%, and carbapenem resistance rates ranged from 0% to 81%. Glycopeptide resistance rates among Gram-positive isolates ranged from 0% to 45%., Conclusion: AMR is already a significant issue in NNUs worldwide. The apparent burden of AMR in a given NNU in the LMIC setting can be influenced by a range of factors which will vary substantially between NNUs. These variations must be considered when designing interventions to improve neonatal mortality globally., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2020
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16. A review of -multidrug-resistant Enterobacteriaceae in a neonatal unit in Johannesburg, South Africa.
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Ballot DE, Bandini R, Nana T, Bosman N, Thomas T, Davies VA, Cooper PA, Mer M, and Lipman J
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- Antimicrobial Stewardship, Carbapenem-Resistant Enterobacteriaceae isolation & purification, Cause of Death, Cross-Sectional Studies, Enterobacter cloacae drug effects, Enterobacter cloacae isolation & purification, Enterobacteriaceae isolation & purification, Escherichia coli drug effects, Escherichia coli isolation & purification, Female, Hospitalization statistics & numerical data, Humans, Infant, Newborn, Infant, Premature, Infant, Very Low Birth Weight, Intensive Care Units, Neonatal, Klebsiella drug effects, Klebsiella isolation & purification, Klebsiella pneumoniae isolation & purification, Male, Neonatal Sepsis drug therapy, Neonatal Sepsis mortality, Proteus mirabilis drug effects, Proteus mirabilis isolation & purification, Retrospective Studies, Risk Factors, Serratia marcescens isolation & purification, South Africa epidemiology, Drug Resistance, Multiple, Bacterial, Enterobacteriaceae drug effects, Neonatal Sepsis microbiology
- Abstract
Background: Multi-drug resistant organisms are an increasingly important cause of neonatal sepsis., Aim: This study aimed to review neonatal sepsis caused by multi-drug resistant Enterobacteriaceae (MDRE) in neonates in Johannesburg, South Africa., Methods: This was a cross sectional retrospective review of MDRE in neonates admitted to a tertiary neonatal unit between 1 January 2013 and 31 December 2015., Results: There were 465 infections in 291 neonates. 68.6% were very low birth weight (< 1500 g). The median age of infection was 14.0 days. Risk factors for MDRE included prematurity (p = 0.01), lower birth weight (p = 0.04), maternal HIV infection (p = 0.02) and oxygen on day 28 (p < 0.001). The most common isolate was Klebsiella pneumoniae (66.2%). Total MDRE isolates increased from 0.39 per 1000 neonatal admissions in 2013 to 1.4 per 1000 neonatal admissions in 2015 (p < 0.001). There was an increase in carbapenem-resistant Enterobacteriaceae (CRE) from 2.6% in 2013 to 8.9% in 2015 (p = 0.06). Most of the CRE were New Delhi metallo-β lactamase- (NDM) producers. The all-cause mortality rate was 33.3%. Birth weight (p = 0.003), necrotising enterocolitis (p < 0.001) and mechanical ventilation (p = 0.007) were significantly associated with mortality. Serratia marcescens was isolated in 55.2% of neonates that died., Conclusions: There was a significant increase in MDRE in neonatal sepsis during the study period, with the emergence of CRE. This confirms the urgent need to intensify antimicrobial stewardship efforts and address infection control and prevention in neonatal units in LMICs. Overuse of broad- spectrum antibiotics should be prevented.
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- 2019
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17. Growth of extremely low birth weight infants at a tertiary hospital in a middle-income country.
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Mabhandi T, Ramdin T, and Ballot DE
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- Birth Weight, Comorbidity, Developing Countries, Ductus Arteriosus, Patent epidemiology, Female, Follow-Up Studies, Growth Charts, Humans, Income, Infant, Newborn, Infant, Premature, Male, Pilot Projects, Retrospective Studies, Sepsis epidemiology, South Africa epidemiology, Tertiary Care Centers statistics & numerical data, Growth Disorders epidemiology, Infant, Extremely Low Birth Weight, Infant, Premature, Diseases epidemiology
- Abstract
Background: Survival of extremely low birth weight (ELBW; birth weight less than 1000 g) infants has improved significantly since the 1990s. Consequently, growth monitoring in ELBW infants has gained more relevance., Methods: We conducted this study to describe the growth of ELBW infants at a tertiary hospital, to audit macronutrient intake and explore the association of prematurity complications with growth. This was a retrospective study on 92 ELBW infants born at Charlotte Maxeke Johannesburg Academic Hospital. The association between good growth (regaining birth weight in 21 days or less and subsequent growth velocity > 15 g/kg/day) and complications of prematurity was explored., Results: Only 11infants (13%) had a discharge weight above the 10th centile when the Fenton growth chart was used compared to 20 infants (22.4%) when the Intergrowth 21st Project growth standard was used. The mean weight velocity was 13.5 g/kg/day and the mean number of days to regain birth weight was 18.2 days. Factors associated with poor growth were late-onset sepsis, persistent patent ductus arteriosus, continuous positive airway pressure for more than 2 days, invasive ventilation, oxygen on day 28 and being kept nil per os. Protein and caloric intake correlate positively with growth velocity. Unlike the Fenton Growth Charts, use of the Intergrowth 21st Project growth standards revealed the association between neonatal factors and poor growth., Conclusion: Growth outcome in infants is poor at 36 weeks postmenstrual age at our institution. Intergrowth 21st Project growth standards were superior to Fenton Growth Charts, however a multicentre study is required before adoption.
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- 2019
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18. A comparison between raw and predicted mortality in a paediatric intensive care unit in South Africa.
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Ballot DE, Ramdin T, White DA, and Lipman J
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- Data Collection, Data Interpretation, Statistical, Databases, Factual, Female, Hospitalization, Humans, Infant, Infant, Newborn, Male, Patient Admission, Retrospective Studies, Risk, South Africa, Critical Care methods, Hospital Mortality, Infant Mortality, Intensive Care Units, Pediatric, Pediatrics methods
- Abstract
Objective: Paediatric intensive care resources are limited in sub-Saharan Africa. The mortality rate in a combined Paediatric/Neonatal Intensive Care Unit in Johannesburg, South Africa was almost double that in a dedicated paediatric intensive care unit in the same country. This study aimed to compare the raw mortality rate with that predicted with the Paediatric Index of Mortality (version 3), by doing a retrospective analysis of an existing database., Results: A total of 530 patients admitted to the intensive care unit between 1 January 2015 and 31 December 2017 were included. The raw mortality rate was 27.1% and the predicted mortality rate was 27.0% (p = 0.971). Cardiac arrest during ICU admission (p < 0.001), non-reactive pupils (0.035), inotropic support (p < 0.001) and renal disease (p = 0.002) were all associated with an increased risk of mortality. These findings indicate that the high mortality rate is due to the severity of illness in the patients that are admitted. It also indicates that the quality of care delivered is acceptable.
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- 2018
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19. A review of antenatal corticosteroid use in premature neonates in a middle-income country.
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Laher A, Ballot DE, Ramdin T, and Chirwa T
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Background: Antenatal corticosteroid (ANS) use in premature neonates has become a standard of practice. However, there is low ANS coverage in low- to middle-income countries (LMICs). Recent studies have questioned the efficacy of ANSs in such countries., Objective: To review the use of ANSs in preterm neonates at Charlotte Maxeke Johannesburg Academic Hospital (CMJAH), South Africa., Methods: This was a retrospective observational study of all neonates with a birth weight of 500 - 1 800 g born at CMJAH between 1 January 2013 and 30 June 2016. Neonatal and maternal characteristics of neonates exposed to ANSs were compared with those of neonates who were not exposed., Results: The ANS coverage of the final sample was 930/2 109 (44.1%). The mean (standard deviation (SD)) birth weight was 1 292.4 (323.2) g and the mean gestational age 30.2 (2.9) weeks. Attending antenatal care and maternal hypertension were associated with increased use of ANSs, whereas vaginal delivery was associated with decreased use. In neonates weighing <1 500 g, the use of ANSs was associated with decreased mortality, decreased intraventricular haemorrhage and decreased patent ductus arteriosus. There was no association between ANSs and respiratory distress syndrome, necrotising enterocolitis, sepsis or need for respiratory support in all premature neonates, and no association with improved outcomes in those weighing ≥1 500 g., Conclusion: The benefits of ANSs in terms of neonatal morbidity in this study were not as marked as those published in high-income countries. A randomised controlled trial may be indicated in LMICs.
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- 2017
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20. Assessment of developmental outcome in very low birth weight infants in Southern Africa using the Bayley Scales of Infant Development (III).
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Ballot DE, Ramdin T, Rakotsoane D, Agaba F, Chirwa T, Davies VA, and Cooper PA
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Objectives: The study aimed to compare the developmental outcome of very low birth weight infants with a group of normal-term controls in a tertiary hospital in sub-Saharan Africa., Design: A group of 105 very low birth weight infants were assessed at a mean age of 17.6 months (95% CI 16.7 to 18.6) using the Bayley Scales of Infant Development, Third Edition, and compared with a group of normal-term controls at the same mean age., Results: Seven of the study infants (7%) had developmental delay (a score below 70), compared with none in the control group (p=0.04). Three of the seven study infants were delayed on all three subscales, one of whom had cerebral palsy. A further 34% of the study infants were 'at risk' of developmental delay (a score below 85). There was no difference in the mean composite score between the study group and controls for the cognitive (p=0.56), motor (p=0.57) or language (p=0.66) subscales. There was no difference in mean composite scores on all subscales between infants who were appropriate for gestational age and those who were small for gestational age. Cognitive and motor scores remained stable in paired assessments of study infants before and after 1 year of age; language scores decreased significantly (p<0.001). Mechanical ventilation was the only risk factor significantly associated with a cognitive score below 85 in study infants., Conclusion: Very low birth weight infants in sub-Saharan Africa are at risk of developmental delay and require long-term neurodevelopmental follow-up., Competing Interests: Competing interests: None declared.
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- 2017
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21. Use of the Bayley Scales of Infant and Toddler Development, Third Edition, to Assess Developmental Outcome in Infants and Young Children in an Urban Setting in South Africa.
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Ballot DE, Ramdin T, Rakotsoane D, Agaba F, Davies VA, Chirwa T, and Cooper PA
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Background: The Bayley Scales of Infant and Toddler Development (III) is a tool developed in a Western setting., Aim: To evaluate the development of a group of inner city children in South Africa with no neonatal risk factors using the Bayley Scales of Infant and Toddler Development (III), to determine an appropriate cut-off to define developmental delay, and to establish variation in scores done in the same children before and after one year of age., Methods: Cohort follow-up study., Results: 74 children had at least one Bayley III assessment at a mean age of 19.4 months (95% CI 18.4 to 20.4). The mean composite cognitive score was 92.2 (95% CI 89.4 to 95.0), the mean composite language score was 94.8 (95% CI 92.5 to 97.1), and mean composite motor score was 98.8 (95% CI 96.8 to 101.0). No child had developmental delay using a cut-off score of 70. In paired assessments above and below one year of age, the cognitive score remained unchanged, the language score decreased significantly ( p = 0.001), and motor score increased significantly ( p = 0.004) between the two ages., Conclusion: The Bayley Scales of Infant and Toddler Development (III) is a suitable tool for assessing development in urban children in southern Africa.
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- 2017
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22. A review of delivery room resuscitation in very low birth weight infants in a middle income country.
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Ballot DE, Agaba F, Cooper PA, Davies VA, Ramdin T, Chirwa L, Rakotsoane D, and Madzudzo L
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Background: Advanced levels of delivery room resuscitation in very low birth weight infants are reported to be associated with death and complications of prematurity. In resource limited settings, the need for delivery room resuscitation is often used as a reason to limit care in these infants., Methods: This was a review of delivery room resuscitation in very low birth weight infants born in a tertiary hospital in South Africa between 01 January 2013 and 30 June 2016. Outcomes included death and serious complications of prematurity. Advanced delivery room resuscitation was defined as the need for intubation, chest compressions or the administration of adrenaline., Results: A total of 1511 very low birth weight infants were included in the study. The majority (1332/1511 (88.2%) required oxygen in the delivery room. Face mask ventilation was needed in 45.2% (683/1511). Advanced delivery room resuscitation was only required in 10.6% (160/1511). More than half the infants who required advanced delivery room resuscitation died (89/160; 55.6%). Advanced delivery room resuscitation was required in significantly more infants <1000 grams at birth than those infants >1000 grams (83/539 (15.4%) vs 77/972 (7.9%) p < 0.001). Advanced delivery room resuscitation was significantly associated with a 5 minute Apgar score < 6 (OR 13.8 (95%CI 8.6-22.0), supplemental oxygen at day 28 (OR 2.2 (95% CI 1.4-3.9), metabolic acidosis (OR 2.3 (95% CI 1.1-4.8) and death (OR 1.9 95% CI 1.1-3.3). Other serious complications of prematurity were not associated with advanced delivery room resuscitation. Mortality was increased in infants with a low admission temperature (35.1 °C (SD 0.92) vs 36.1 °C (SD 1.4) ( p < 0.001)., Conclusion: There was a high mortality rate associated with advanced delivery room resuscitation; however complications of prematurity were not increased in survivors..The need for advanced delivery room resuscitation alone should not be used as a predictor of poor outcome in very low birth weight infants. Survivors of advanced delivery room resuscitation should be afforded ventilatory support if required. Special care must be taken to avoid hypothermia in very low birth weight infants requiring resuscitation at birth.
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- 2017
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23. Uncertainty in Antibiotic Dosing in Critically Ill Neonate and Pediatric Patients: Can Microsampling Provide the Answers?
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Dorofaeff T, Bandini RM, Lipman J, Ballot DE, Roberts JA, and Parker SL
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- Anti-Bacterial Agents blood, Anti-Bacterial Agents therapeutic use, Blood Specimen Collection methods, Drug Administration Schedule, Humans, Sepsis blood, Sepsis drug therapy, Uncertainty, Anti-Bacterial Agents administration & dosage, Critical Illness therapy, Drug Monitoring methods
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Purpose: With a decreasing supply of antibiotics that are effective against the pathogens that cause sepsis, it is critical that we learn to use currently available antibiotics optimally. Pharmacokinetic studies provide an evidence base from which we can optimize antibiotic dosing. However, these studies are challenging in critically ill neonate and pediatric patients due to the small blood volumes and associated risks and burden to the patient from taking blood. We investigate whether microsampling, that is, obtaining a biologic sample of low volume (<50 μL), can improve opportunities to conduct pharmacokinetic studies., Methods: We performed a literature search to find relevant articles using the following search terms: sepsis, critically ill, severe infection, intensive care AND antibiotic, pharmacokinetic, p(a)ediatric, neonate. For microsampling, we performed a search using antibiotics AND dried blood spots OR dried plasma spots OR volumetric absorptive microsampling OR solid-phase microextraction OR capillary microsampling OR microsampling. Databases searched include Web of Knowledge, PubMed, and EMbase., Findings: Of the 32 antibiotic pharmacokinetic studies performed on critically ill neonate or pediatric patients in this review, most of the authors identified changes to the pharmacokinetic properties in their patient group and recommended either further investigations into this patient population or therapeutic drug monitoring to ensure antibiotic doses are suitable. There remain considerable gaps in knowledge regarding the pharmacokinetic properties of antibiotics in critically ill pediatric patients. Implementing microsampling in an antibiotic pharmacokinetic study is contingent on the properties of the antibiotic, the pathophysiology of the patient (and how this can affect the microsample), and the location of the patient. A validation of the sampling technique is required before implementation., Implications: Current antibiotic regimens for critically ill neonate and pediatric patients are frequently suboptimal due to a poor understanding of altered pharmacokinetic properties. An assessment of the suitability of microsampling for pharmacokinetic studies in neonate and pediatric patients is recommended before wider use. The method of sampling, as well as the method of bioanalysis, also requires validation to ensure the data obtained reflect the true result., (Copyright © 2016 Elsevier HS Journals, Inc. All rights reserved.)
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- 2016
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24. Retrospective cross-sectional review of survival rates in critically ill children admitted to a combined paediatric/neonatal intensive care unit in Johannesburg, South Africa, 2013-2015.
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Ballot DE, Davies VA, Cooper PA, Chirwa T, Argent A, and Mer M
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- Birth Weight, Cause of Death, Child, Cross-Sectional Studies, Female, Humans, Infant, Infant, Newborn, Infant, Very Low Birth Weight, Male, Population Surveillance, Retrospective Studies, Risk Factors, South Africa epidemiology, Critical Illness mortality, Hospitalization statistics & numerical data, Infant, Newborn, Diseases mortality, Intensive Care Units, Neonatal, Patient Discharge statistics & numerical data, Survival Rate trends
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Objective: Report on survival to discharge of children in a combined paediatric/neonatal intensive care unit (PNICU)., Design and Setting: Retrospective cross-sectional record review., Participants: All children (medical and surgical patients) admitted to PNICU between 1 January 2013 and 30 June 2015., Outcome Measures: Primary outcome-survival to discharge. Secondary outcomes-disease profiles and predictors of mortality in different age categories., Results: There were 1454 admissions, 182 missing records, leaving 1272 admissions for review. Overall mortality rate was 25.7% (327/1272). Mortality rate was 41.4% (121/292) (95% CI 35.8% to 47.1%) for very low birthweight (VLBW) babies, 26.6% (120/451) (95% CI 22.5% to 30.5%) for bigger babies and 16.2% (86/529) (95% CI 13.1% to 19.3%) for paediatric patients. Risk factors for a reduced chance of survival to discharge in paediatric patients included postcardiac arrest (OR 0.21, 95% CI 0.09 to 0.49), inotropic support (OR 0.085, 95% CI 0.04 to 0.17), hypernatraemia (OR 0.16, 95% CI 0.04 to 0.6), bacterial sepsis (OR 0.32, 95% CI 0.16 to 0.65) and lower respiratory tract infection (OR 0.54, 95% CI 0.30 to 0.97). Major birth defects (OR 0.44, 95% CI 0.26 to 0.74), persistent pulmonary hypertension of the new born (OR 0.44, 95% CI 0.21 to 0.91), metabolic acidosis (OR 0.23, 95% CI 0.12 to 0.74), inotropic support (OR 0.23, 95% CI 0.12 to 0.45) and congenital heart defects (OR 0.29, 95% CI 0.13 to 0.62) predicted decreased survival in bigger babies. Birth weight (OR 0.997, 95% CI 0.995 to 0.999), birth outside the hospital (OR 0.21, 95% CI 0.05 to 0.84), HIV exposure (OR 0.54, 95% CI 0.30 to 0.99), resuscitation at birth (OR 0.49, 95% CI 0.25 to 0.94), metabolic acidosis (OR 0.25, 95% CI 0.10 to 0.60) and necrotising enterocolitis (OR 0.23, 95% CI 0.12 to 0.46) predicted poor survival in VLBW babies., Conclusions: Ongoing mortality review is essential to improve provision of paediatric critical care., (Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/)
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- 2016
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25. Is there a role for microsampling in antibiotic pharmacokinetic studies?
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Parker SL, Dorofaeff T, Lipman J, Ballot DE, Bandini RM, Wallis SC, and Roberts JA
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- Animals, Anti-Bacterial Agents administration & dosage, Dose-Response Relationship, Drug, Dried Blood Spot Testing, Humans, Solid Phase Microextraction methods, Anti-Bacterial Agents pharmacokinetics, Blood Specimen Collection methods, Research Design
- Abstract
Introduction: Clinical pharmacokinetic studies of antibiotics can establish evidence-based dosing regimens that improve the likelihood of eradicating the pathogen at the site of infection, reduce the potential for selection of resistant pathogens, and minimize harm to the patient. Innovations in small volume sampling (< 50 μL) or 'microsampling' may result in less-invasive sample collection, self-sampling and dried storage. Microsampling may open up opportunities in patient groups where sampling is challenging., Areas Covered: The challenges for implementation of microsampling to assure suitability of the results, include: acceptable study design, regulatory agency acceptance, and meeting bioanalytical validation requirements. This manuscript covers various microsampling methods, including dried blood/plasma spots, volumetric absorptive microsampling, capillary microsampling, plasma preparation technologies and solid-phase microextraction., Expert Opinion: The available analytical technology is being underutilized due to a lack of bridging studies and validated bioanalytical methods. These deficiencies represent major impediments to the application of microsampling to antibiotic pharmacokinetic studies. A conceptual framework for the assessment of the suitability of microsampling in clinical pharmacokinetic studies of antibiotics is provided. This model establishes a 'contingency approach' with consideration of the antibiotic and the type and location of the patient, as well as the more prescriptive bioanalytical validation protocols.
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- 2016
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26. Exchange Transfusion for Neonatal Hyperbilirubinemia in Johannesburg, South Africa, from 2006 to 2011.
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Ballot DE and Rugamba G
- Abstract
Background. Severe hyperbilirubinaemia requiring exchange transfusion has become less common in recent years; however, kernicterus still occurs. The aim of this study was to review babies undergoing exchange transfusion for severe hyperbilirubinaemia in a Johannesburg hospital. Methodology. This was a retrospective review of babies who required exchange transfusion in both the neonatal and the paediatric wards from June 1, 2006, to December 31, 2011. Results. There were 64 patients who underwent 67 exchange transfusions. Isoimmune haemolysis (both Rh and ABO incompatibility) was the cause of jaundice in 9/64 (14%). Most babies who underwent exchange transfusion were sick or preterm and were admitted in hospital after birth (38/64; 59.5%); three of these babies died, but not during the exchange transfusion (3/38; 7.9%); all three had signs suggestive of neonatal sepsis. The remaining 26 babies (40.6%) were readmitted to the paediatric wards for exchange transfusion. Six of these babies (6/26; 23.0%) had signs of kernicterus. The most significant complication of exchange transfusion was apnoea requiring mechanical ventilation in three patients (3/64; 4.6%). Conclusion. Despite a relatively low number of babies undergoing exchange transfusion, kernicterus still occurs and must be prevented. Proper protocols for screening and management of severe hyperbilirubinaemia need to be enforced.
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- 2016
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27. Comparison of morbidity and mortality of very low birth weight infants in a Central Hospital in Johannesburg between 2006/2007 and 2013.
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Ballot DE, Chirwa T, Ramdin T, Chirwa L, Mare I, Davies VA, and Cooper PA
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- Cause of Death, Continuous Positive Airway Pressure statistics & numerical data, Humans, Hyaline Membrane Disease epidemiology, Hyaline Membrane Disease therapy, Infant, Infant, Newborn, Infant, Premature, Infant, Premature, Diseases therapy, Pulmonary Surfactants therapeutic use, Retrospective Studies, South Africa epidemiology, Survival Analysis, Infant Mortality, Infant, Premature, Diseases epidemiology, Infant, Very Low Birth Weight
- Abstract
Background: Health protocols need to be guided by current data on survival and benefits of interventions within the local context. Periodic clinical audits are required to inform and update health care protocols. This study aimed to review morbidity and mortality in very low birth weight (VLBW) infants in 2013 compared with similar data from 2006/2007., Methods: We performed a retrospective review of patients' records from a neonatal computer database for 562 VLBW infants. These neonates weighed between 500 and 1500 g at birth, and were admitted within 48 hours after birth between 01 January 2013 and 31 December 2013. Patients' characteristics, complications of prematurity, and therapeutic interventions were compared with 2006/2007 data. Univariate analysis and multiple logistic regression were performed to establish significant associations of various factors with survival to discharge for 2013., Results: Survival in 2013 was similar to that in 2006/2007 (73.4% vs 70.2%, p = 0.27). However, survival in neonates who weighed 750-900 g significantly improved from 20.4% in 2006/2007 to 52.4% in 2013 (p = 0.001). The use of nasal continuous positive airway pressure (NCPAP) increased from 20.3% to 62.9% and surfactant use increased from 19.2% to 65.5% between the two time periods (both p < 0.001). Antenatal care attendance improved from 54.4% to 70.6% (p = 0.001) and late onset sepsis (>72 hours after birth) increased from 12.5% to 19% (p = 0.006) between the two time periods. Other variables remained unchanged between 2006/2007 and 2013. The main determinants of survival to discharge in 2013 were birth weight (odds ratio 1.005, 95% confidence interval 1.003-1.0007, resuscitation at birth (2.673, 1.375-5.197), NCPAP (0.247, 0.109-0.560), necrotising enterocolitis (4.555, 1.659-12.51), and mode of delivery, including normal vaginal delivery (0.456, 0.231-0.903) and vaginal breech (0.069, 0.013-0.364)., Conclusions: There was a marked improvement in the survival of neonates weighing between 750 and 900 g at birth, most likely due to provision of surfactant and NCPAP. Provision of NCPAP, prevention of necrotising enterocolitis, and control of infection need to be prioritised in VLBW infants to improve their outcome.
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- 2015
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28. Background changing patterns of neonatal fungal sepsis in a developing country.
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Ballot DE, Bosman N, Nana T, Ramdin T, and Cooper PA
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- Antifungal Agents pharmacology, Birth Weight, Candida classification, Candida drug effects, Candidemia drug therapy, Candidemia epidemiology, Candidemia microbiology, Candidiasis drug therapy, Candidiasis microbiology, Candidiasis mortality, Drug Resistance, Fungal, Female, Fluconazole pharmacology, Fluconazole therapeutic use, Humans, Incidence, Infant, Newborn, Male, Microbial Sensitivity Tests, Pyrimidines pharmacology, Pyrimidines therapeutic use, Risk Factors, Socioeconomic Factors, South Africa epidemiology, Treatment Outcome, Triazoles pharmacology, Triazoles therapeutic use, Voriconazole, Antifungal Agents therapeutic use, Candida isolation & purification, Candidemia diagnosis, Candidiasis diagnosis
- Abstract
Background: Candida albicans is the predominant isolate in many neonatal fungal bloodstream infections (BSIs), so fluconazole is used as empiric antifungal therapy., Aim: To determine the predominant organisms, antifungal sensitivity patterns, clinical and demographic risk factors and crude mortality rate in neonatal fungal BSI cases., Subjects and Methods: This is a review of all neonatal fungal BSI cases between January 2007 and December 2011., Results: Fifty-nine patients were included in the study. Candida parapsilosis (54.2%) was isolated in majority of the cases, followed by C. albicans (27.1%). Fluconazole resistance was present in 16 of 32 cases of C. parapsilosis versus 1 of 16 cases of C. albicans (P = 0.003). Mortality rate was 45.8%. Surgical problems were present in 55.9%. Death was significantly associated with lower birth weight (P = 0.046) and necrotizing enterocolitis (P = 0.034)., Conclusions: The increase in neonatal fungal BSI and resistant organisms highlights the need to review use of routine empiric fluconazole and to implement preventive measures.
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- 2013
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29. Developmental outcome of very low birth weight infants in a developing country.
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Ballot DE, Potterton J, Chirwa T, Hilburn N, and Cooper PA
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- Cerebral Palsy diagnosis, Cerebral Palsy epidemiology, Cerebral Palsy etiology, Cohort Studies, Developmental Disabilities diagnosis, Developmental Disabilities etiology, Female, Follow-Up Studies, Humans, Infant, Infant, Newborn, Infant, Premature, Infant, Premature, Diseases diagnosis, Infant, Premature, Diseases etiology, Intensive Care, Neonatal methods, Intensive Care, Neonatal standards, Linear Models, Logistic Models, Male, Multivariate Analysis, Outcome Assessment, Health Care, Risk Factors, South Africa epidemiology, Child Development, Developing Countries, Developmental Disabilities epidemiology, Infant, Premature, Diseases epidemiology, Infant, Very Low Birth Weight
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Background: Advances in neonatal care allow survival of extremely premature infants, who are at risk of handicap. Neurodevelopmental follow up of these infants is an essential part of ongoing evaluation of neonatal care. The neonatal care in resource limited developing countries is very different to that in first world settings. Follow up data from developing countries is essential; it is not appropriate to extrapolate data from units in developed countries. This study provides follow up data on a population of very low birth weight (VLBW) infants in Johannesburg, South Africa., Methods: The study sample included all VLBW infants born between 01/06/2006 and 28/02/2007 and discharged from the neonatal unit at Charlotte Maxeke Johannesburg Academic Hospital (CMJAH). Bayley Scales of Infant and Toddler Development Version 111 (BSID) 111 were done to assess development. Regression analysis was done to determine factors associated with poor outcome., Results: 178 infants were discharged, 26 were not available for follow up, 9 of the remaining 152 (5.9%) died before an assessment was done; 106 of the remaining 143 (74.1%) had a BSID 111 assessment. These 106 patients form the study sample; mean birth weight and mean gestational age was 1182 grams (SD: 197.78) and 30.81 weeks (SD: 2.67) respectively. The BSID (111) was done at a median age of 16.48 months. The mean cognitive subscale was 88.6 (95% CI: 85.69-91.59), 9 (8.5%) were < 70, mean language subscale was 87.71 (95% CI: 84.85-90.56), 10 (9.4%) < 70, and mean motor subscale was 90.05 (95% CI: 87.0-93.11), 8 (7.6%) < 70. Approximately one third of infants were identified as being at risk (score between 70 and 85) on each subscale. Cerebral palsy was diagnosed in 4 (3.7%) of babies. Factors associated with poor outcome included cystic periventricular leukomalacia (PVL), resuscitation at birth, maternal parity, prolonged hospitalisation and duration of supplemental oxygen. PVL was associated with poor outcome on all three subscales. Birth weight and gestational age were not predictive of neurodevelopmental outcome., Conclusion: Although the neurodevelopmental outcome of this group of VLBW infants was within the normal range, with a low incidence of cerebral palsy, these results may reflect the low survival of babies with a birth weight below 900 grams. In addition, mean subscale scores were low and one third of the babies were identified as "at risk", indicating that this group of babies warrants long-term follow up into school going age.
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- 2012
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30. Bacterial bloodstream infections in neonates in a developing country.
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Ballot DE, Nana T, Sriruttan C, and Cooper PA
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Background. Ongoing surveillance of antimicrobial sensitivity patterns of bacteria isolated in bloodstream infections guides empiric antibiotic therapy in neonatal sepsis. Methods. Sensitivity profiles of neonatal bacterial bloodstream infections in a tertiary hospital were reviewed between 01/06/2009 and 30/06/2010 . Results. There were 246 episodes of bloodstream infection in 181 individuals-(14.06 episodes in10.35 patients/1000 patient days or 14.4 episodes in 10.6 babies/1000 live births. The majority were (93.5%) were late onset and most (54.9%) were gram positive. There were 2.28 sepsis-related deaths /1000 patient days or 2.3/1000 live births. Death was significantly associated with gram-negative infections (P < 0.001), multiple gestation (P < 0.001), shock (P = 0.008), NEC (P = 0.002), and shorter duration of hospital stay (P < 0.001). Coagulase-negative staphylococcus was isolated in 19.1%, K. pneumoniae ESBL in 12.1%, and A. baumanni in 10.9%. S. agalactiae predominated in early onset sepsis. Methicillin resistance was present in 86% of CoNS and 69.5% of S. aureus; 46% enterococcal isolates were ampicillin resistant. The majority (65%) of K. pneumoniae isolates were ESBL producers. Ampicillin resistance was present in 96% of E. coli. Conclusions. Penicillin and an aminoglycoside would be suitable empiric therapy for early onset sepsis and meropenem with gentamycin or ceftazidime with amikacin for late onset sepsis.
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- 2012
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31. Serum 1,3-βD-Glucan assay in the diagnosis of invasive fungal disease in neonates.
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Mackay CA, Ballot DE, and Perovic O
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Invasive fungal disease is a significant cause of morbidity and mortality in the neonate. The current study aims to assess the 1, 3-βD-Glucan (BG) assay in a prospective analysis in neonates with suspected fungaemia. A multicentre, prospective cohort study was conducted in Johannesburg, South Africa. The study included 72 neonates with clinically suspected late onset sepsis who were at high risk of fungaemia. A BG assay was performed on each patient and correlated with a sepsis classification based on the full blood count, C-reactive protein and blood culture results as no fungaemia, possible fungaemia, probable fungaemia or definite fungaemia. Sensitivity and specificity of the BG assay at levels of 60 pg/mL are 73.2% and 71.0% respectively and at levels of 80 pg/mL are 70.7% and 77.4% respectively. Positive and negative predictive values at 60 pg/mL are 76.9% and 66.7% respectively and at 80 pg/mL are 80.6% and 66.7% respectively. The area under the receiver operating curve is 0.753. The BG assay is a useful adjunct to the diagnosis of invasive fungal disease in neonates. It does, however, need to be considered in the context of the clinical picture and supplementary laboratory investigations.
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- 2011
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32. Growth of a cohort of very low birth weight infants in Johannesburg, South Africa.
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Mackay CA, Ballot DE, and Cooper PA
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- Cohort Studies, Female, Humans, Infant, Infant, Newborn, Male, South Africa, Birth Weight physiology, Body Weight physiology, Child Development physiology, Infant, Very Low Birth Weight growth & development
- Abstract
Background: Little is known about the growth of VLBW infants in South Africa. The aim of this study was to assess the growth of a cohort of VLBW infants in Johannesburg., Methods: A secondary analysis of a prospective cohort was conducted on 139 VLBW infants (birth weight ≤ 1500 g) admitted to Charlotte Maxeke Johannesburg Academic Hospital. Growth measurements were obtained from patient files and compared with the World Health Organization Child Growth Standards (WHO-CGS) and with a previous cohort of South African VLBW infants. The sample size per analysis ranged from 11 to 81 infants., Results: Comparison with the WHO-CGS showed initial poor growth followed by gradual catch up growth with mean Z scores of 0.0 at 20 months postmenstrual age for weight, -0.8 at 20 months postmenstrual age for length and 0.0 at 3 months postmenstrual age for head circumference. Growth was comparable with that of a previous cohort of South African VLBW infants in all parameters., Conclusions: Initial poor growth in the study sample was followed by gradual catch up growth but with persistent deficits in length for age at 20 months postmenstrual age relative to healthy term infants.
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- 2011
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33. Determinants of survival in very low birth weight neonates in a public sector hospital in Johannesburg.
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Ballot DE, Chirwa TF, and Cooper PA
- Subjects
- Developing Countries, Female, Hospitals, Public, Humans, Hypotension mortality, Infant, Newborn, Logistic Models, Male, Medical Records, Odds Ratio, Public Sector, Retrospective Studies, Risk Factors, Sex Factors, South Africa epidemiology, Survival Rate, Time Factors, Treatment Outcome, Birth Weight, Continuous Positive Airway Pressure mortality, Enterocolitis, Necrotizing mortality, Infant Mortality, Infant, Very Low Birth Weight
- Abstract
Background: Audit of disease and mortality patterns provides essential information for health budgeting and planning, as well as a benchmark for comparison. Neonatal mortality accounts for about 1/3 of deaths < 5 years of age and very low birth weight (VLBW) mortality for approximately 1/3 of neonatal mortality. Intervention programs must be based on reliable statistics applicable to the local setting; First World data cannot be used in a Third World setting. Many neonatal units participate in the Vermont Oxford Network (VON); limited resources prevent a significant number of large neonatal units from developing countries taking part, hence data from such units is lacking. The purpose of this study was to provide reliable, recent statistics relevant to a developing African country, useful for guiding neonatal interventions in that setting., Methods: This was a retrospective chart review of 474 VLBW infants admitted within 24 hours of birth, between 1 July 2006 and 30 June 2007, to the neonatal unit of Charlotte Maxeke Johannesburg Academic Hospital (CMJAH) in Johannesburg, South Africa. Binary outcome logistic regression on individual variables and multiple logistic regression was done to identify those factors determining survival., Results: Overall survival was 70.5%. Survival of infants below 1001 grams birth weight was 34.9% compared to 85.8% for those between 1001 and 1500 grams at birth. The main determinant of survival was birth weight with an adjusted survival odds ratio of 23.44 (95% CI: 11.22 - 49.00) for babies weighing between 1001 and 1500 grams compared to those weighing below 1001 grams. Other predictors of survival were gender (OR 3. 21; 95% CI 1.6 - 6.3), birth before arrival at the hospital (BBA) (OR 0.23; 95% CI: 0.08 - 0.69), necrotising enterocolitis (NEC) (OR 0.06; 95% CI: 0.02 - 0.20), hypotension (OR 0.05; 95% CI 0.01 - 0.21) and nasal continuous positive airways pressure (NCPAP) (OR 4.58; 95% CI 1.58 - 13.31)., Conclusions: Survival rates compare favourably with other developing countries, but can be improved; especially in infants < 1001 grams birth weight. Resources need to be allocated to preventing the birth of VLBW babies outside hospital, early neonatal resuscitation, provision of NCPAP and prevention of NEC.
- Published
- 2010
- Full Text
- View/download PDF
34. Intensive care for very low birthweight infants in South Africa: a survey of physician attitudes, parent counseling and resuscitation practices.
- Author
-
Partridge JC, Ranchod TM, Ballot DE, Martinez AM, Cory BJ, and Davies VA
- Subjects
- Adult, Counseling trends, Critical Care methods, Cross-Sectional Studies, Developing Countries, Female, Health Care Surveys, Humans, Infant, Newborn, Infant, Premature, Diseases diagnosis, Infant, Premature, Diseases epidemiology, Male, Medically Underserved Area, Outcome Assessment, Health Care, Practice Patterns, Physicians', Probability, Resuscitation standards, Resuscitation trends, Risk Assessment, Socioeconomic Factors, South Africa, Survival Analysis, Attitude of Health Personnel, Counseling standards, Infant, Premature, Diseases therapy, Infant, Very Low Birth Weight, Professional-Family Relations
- Abstract
Improving outcomes have promoted utilization of intensive care for premature infants in developing countries with available fiscal and technological resources. Physician counseling and decision-making have not been characterized where economic restrictions, governmental guidelines, and physician cultural attitudes may influence decisions about the appropriateness of neonatal intensive care. A cross-sectional survey of all neonatologists and pediatricians providing neonatal care in public and private hospitals in South Africa (n=394) was carried out. Physicians returned 93 surveys (24 per cent response rate). Frequency of counseling increased with increasing gestational age (GA) but was not universally provided at any GA. Morbidity and mortality were consistently discussed and fiscal considerations frequently discussed when antenatal counseling occurred. Resuscitation thresholds were 25-26 weeks and 665-685 g, and were higher in public than in private hospitals. Decisions to limit resuscitation were based more on expected outcome than on patients' wishes or economics. At 24-25 weeks, 91 per cent of physicians would not resuscitate despite parents' wishes; 93 per cent of physicians would resuscitate 28-29-week-old infants over parents' refusal. Parents expecting premature infants are not invariably counseled. In making life-support decisions, physicians consider infants' best interests and, less frequently, financial and emotional burdens. Thresholds for resuscitation and intensive care are higher in public hospitals, and higher than in developed countries. Physicians relegate parents to a passive role in life-support decisions.
- Published
- 2005
- Full Text
- View/download PDF
35. Parental perception of neonatal intensive care in public sector hospitals in South Africa.
- Author
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Ranchod TM, Ballot DE, Martinez AM, Cory BJ, Davies VA, and Partridge JC
- Subjects
- Adult, Decision Making, Female, Humans, Infant, Newborn, Infant, Very Low Birth Weight, Male, South Africa, Hospitals, Public standards, Intensive Care Units, Neonatal standards, Parents psychology, Patient Satisfaction
- Abstract
Background: Little is known about parental experience and decision making with regard to premature infants requiring intensive care in developing countries. We undertook this study to characterise parents' experience of physician counselling and their role in making life-support decisions for very low-birth-weight (VLBW) (birth weight < 1 501 g) infants born in South Africa's public-sector neonatal intensive care units (NICUs)., Methods: Parents of surviving VLBW infants treated in three Johannesburg-area public hospitals and attending follow-up clinics in August 2001 were interviewed regarding their experience of perinatal counselling on outcomes (pain, survival, disability), perception of actual and optimal decision making, and satisfaction with NICU communication., Results: Parents of 51 infants were interviewed. Seventy-five per cent of parents reported antenatal counselling by physicians on at least one perinatal topic (severe disability, pain, death, finances or religious/moral considerations). The majority of parents (> 60%) who received counselling thought that these topics had been discussed adequately. Most parents reported that doctors had the primary decision-making role, either without consulting them (41%) or after consulting them (37%). Joint decision making was rare (14%). Parents wanted more input in life-support decisions than they reported being given., Conclusion: Counselling is not consistently provided in public-sector hospitals in Johannesburg. Parents of premature infants want a larger share in NICU decision making than they currently experience. Most parents were satisfied with communication later during their infant's hospitalisation. South Africa presents a unique opportunity to study the use of advanced medical technologies in a nation with marked disparities in access to care.
- Published
- 2004
36. Serum procalcitonin as an early marker of neonatal sepsis.
- Author
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Ballot DE, Perovic O, Galpin J, and Cooper PA
- Subjects
- Bacteremia diagnosis, Bacteremia microbiology, Biomarkers blood, Birth Weight, Calcitonin Gene-Related Peptide, Gestational Age, Humans, Infant, Newborn, Logistic Models, Platelet Count, Predictive Value of Tests, ROC Curve, Calcitonin blood, Protein Precursors blood, Sepsis blood, Sepsis diagnosis
- Abstract
Background: It has recently been suggested that procalcitonin (PCT) is of value in the diagnosis of neonatal sepsis, with varying results. This study was to evaluate the role of PCT as a single early marker of neonatal sepsis., Setting: Neonatal Unit, Johannesburg Hospital, and Microbiology Laboratory, National Health Laboratory Service (NHLS), South Africa., Subjects and Methods: Neonates undergoing evaluation for sepsis between April and August 2002 were eligible for inclusion. Patients were categorised into 'no infection', 'possible infection' and 'definite infection' on the basis of C-reactive protein (CRP), white cell count (WCC), platelet count and blood culture results. PCT was correlated with infection categories., Results: One hundred and eighty-three neonates were enrolled. One hundred and eighteen had no infection, 52 possible infection and 13 definite infection. PCT differed significantly among infection categories (p < 0.0001) and correlated significantly with CRP at presentation (correlation coefficient 0.404, p < 0.001) and CRP at 24 hours (correlation coefficient 0.343, p < 0.001). PCT predicted 89.5% of definite infection. Receiver operating characteristic (ROC) analysis for PCT to predict definite infection showed odds ratio (OR) 1.145 (95% confidence interval (CI): 1.05-1.25) with an area under the curve of 0.778. PCT had a negative predictive value of 0.95 (95% CI: 0.915-0.988) for definite infection., Conclusions: Although PCT was significantly related to the category of infection, it is not sufficiently reliable to be the sole marker of neonatal sepsis. PCT would be useful as part of a full sepsis evaluation, but is relatively expensive. A negative PCT on presentation may rule out sepsis, but this needs to be evaluated further.
- Published
- 2004
37. A comparison of high versus low dose recombinant human erythropoietin versus blood transfusion in the management of anaemia of prematurity in a developing country.
- Author
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Avent M, Cory BJ, Galpin J, Ballot DE, Cooper PA, Sherman G, and Davies VA
- Subjects
- Anemia, Neonatal etiology, Chi-Square Distribution, Developing Countries, Dose-Response Relationship, Drug, Female, Follow-Up Studies, Humans, Infant, Newborn, Injections, Subcutaneous, Male, Probability, Recombinant Proteins, Reference Values, South Africa, Treatment Outcome, Anemia, Neonatal drug therapy, Erythrocyte Transfusion methods, Erythropoietin administration & dosage, Infant, Premature
- Abstract
The purpose of this study was to evaluate the effectiveness of early treatment with erythropoietin (EPO) in two different treatment regimes (high vs. low dose) in comparison to the conventional treatment of packed red blood cell (PRBC) transfusions in the management of anaemia of prematurity in a country with limited resources. An open controlled trial was conducted on 93 preterm infants (7 days postnatal age, 900-1500 g birthweight). Patients were randomly assigned either to a low dose (250 IU/kg), a high dose (400 IU/kg), or a control group. EPO was administered subcutaneously three times a week and all infants received 6 mg/kg iron orally from study entry to endpoint of therapy. Haematological parameters were measured and compared. The success was defined as an absence of transfusions and a haematocrit that did not fall below 30 per cent during the time period that the infants were in the study. The three groups were statistically comparable at study entry with respect to gestational age, birthweight, Apgar scores, and haematological values. Over the period that the infants were in the study, 75 per cent of the low dose group and 71 per cent of the high dose group met the criteria for success compared with 40 per cent in the control group (p < 0.001). However, there was no significant difference in the number of transfusions when the low and high EPO dose groups (9.5 per cent) were combined and compared with the control group (26.7 per cent) p = 0.0587. It was concluded that in stable infants, 900-1500 g, where phlebotomy losses are minimized and stringent transfusion guidelines are adhered to, EPO does not significantly decrease the number of transfusions. A conservative approach in the management of anaemia of prematurity, is a viable alternative in areas with limited resources.
- Published
- 2002
- Full Text
- View/download PDF
38. Hematological reference ranges in black very low birth weight infants.
- Author
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Stancheva VP, Sherman GG, Avent M, Cory BJ, Ballot DE, and Cooper PA
- Subjects
- Black People, Blood Cell Count, Erythropoietin blood, Fetal Hemoglobin analysis, Hematologic Tests standards, Humans, Infant, Newborn, Infant, Premature blood, Reference Values, South Africa, White People, Black or African American statistics & numerical data, Infant, Low Birth Weight blood
- Abstract
This study compared hematological reference ranges in black very low birth weight infants to previously published values established predominantly on white subjects. Ninety-four healthy, black, premature babies with a birth weight of 800 to 1500 g at 2-7 days of age were enrolled as part of a study comparing blood transfusions and high- versus low-dose recombinant erythropoietin in anaemia of prematurity. Peripheral venous blood was collected for a full blood count and differential, fetal hemoglobin and erythropoietin levels. The hematological parameters observed in black very low birth weight neonates are similar to previously published reference ranges, except that lower limits of normal were observed for hemoglobin and the red cell indices.
- Published
- 2002
- Full Text
- View/download PDF
39. Is prophylaxis of early-onset group B streptococcal disease appropriate for South Africa?
- Author
-
Bomela HN, Ballot DE, and Cooper PA
- Subjects
- Developing Countries, Humans, Infant, Newborn, Infant, Newborn, Diseases epidemiology, Infant, Premature, Diseases prevention & control, Penicillins administration & dosage, Prospective Studies, South Africa epidemiology, Streptococcal Infections epidemiology, Infant, Newborn, Diseases prevention & control, Streptococcal Infections prevention & control, Streptococcus agalactiae
- Abstract
Background: Early-onset group B streptococcal (GBS) disease in neonates can be prevented by the use of intrapartum chemoprophylaxis. There are two prevention strategies, one based on risk factors and the other on culture screening for GBS. This study sought to establish whether GBS chemoprophylaxis is appropriate in a developing country such as South Africa., Methods: All neonates with early-onset GBS disease born at Johannesburg Hospital between 1 January 1995 and 21 December 1997 were reviewed. Data were collected prospectively between 1 January and 31 October 1998. Data included demographic information, obstetric information, disease characteristics, admission details and mortality. The approximate cost of implementing both strategies was determined., Results: The overall incidence of early-onset GBS was 1.16 per 1,000 live births. The rate was significantly greater in 1998 compared with the previous years. Most of the babies were born preterm (70%), and 60% required admission to the neonatal intensive care unit (ICU) (a total of 81 ICU days). Twelve of the babies died. Assuming that chemoprophylaxis would reduce the number of ICU days by half, this would save an amount of R52,000. Culture-based chemoprophylaxis would cost R10 million, whereas an approach based on risk factors would cost R31,140., Conclusion: In conclusion, we feel that early-onset GBS disease is sufficiently prevalent in our unit to justify the implementation of a chemoprophylaxis strategy based on risk factors. Whether other units should adopt a similar approach would depend on the local incidence of early-onset GBS.
- Published
- 2001
40. Use of C-reactive protein to guide duration of empiric antibiotic therapy in suspected early neonatal sepsis.
- Author
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Bomela HN, Ballot DE, Cory BJ, and Cooper PA
- Subjects
- Humans, Infant, Newborn, Sepsis blood, Time Factors, Anti-Bacterial Agents therapeutic use, C-Reactive Protein analysis, Sepsis drug therapy
- Abstract
Background: Serial C-reactive protein (CRP) measurements have been shown to be useful for guiding duration of antibiotic therapy in neonates. This study sought to determine whether this is a safe and practical approach in a developing country., Methods: The study was conducted at the Johannesburg Hospital between September 15, 1998, and January 15, 1999. Subjects included all neonates evaluated for suspected sepsis in the first 24 h of life who had negative initial and repeat CRP values (< or = 10 mg/l) [corrected]. Repeat CRP measurements were performed between 24 and 48 h after birth. Antibiotic therapy was stopped in these infants at 24 to 48 h, and they were observed until 72 h, when the final blood culture results were available. The number of positive blood cultures in this group was determined., Results: The repeat CRP estimation correctly identified 99 of 100 infants in the study as not requiring further antibiotic therapy (negative predictive value, 99%; 95% confidence intervals, 95.6 to 99.97%). The 1 infant with a positive blood culture was premature with a gestational age of 31 weeks. Eight babies required repeat evaluation for suspected sepsis, 4 presented on Day 3 to 4 and one of these babies died. All these neonates were of < or =33 weeks gestation., Conclusion: The use of serial CRP measurements to guide antibiotic therapy is a safe and practical approach in neonates with suspected sepsis in a developing country.
- Published
- 2000
- Full Text
- View/download PDF
41. Factors associated with poor prognosis in very-low-birth-weight infants.
- Author
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Ballot DE, Mohanlal P, Davies VA, and Cooper PA
- Subjects
- Apgar Score, Female, Gestational Age, Humans, Infant, Newborn, Male, Patient Selection, Prognosis, Prospective Studies, Risk Factors, Severity of Illness Index, Infant, Very Low Birth Weight physiology
- Abstract
Objective: To evaluate predictors of poor outcome, including the CRIB (Clinical Risk Index for Babies) score, in a local population of very-low-birth-weight (VLBW) infants, in order to provide guidelines for selection of these babies for expensive tertiary care., Subjects: Two hundred and thirty-one neonates born at less than 31 weeks' gestation and/or weighing between 1001 g and 1500 g, enrolled prospectively as part of a multicentre study evaluating the CRIB score., Design: Univariate analysis (chi-square/t-tests) and multivariate analysis (stepwise logistic regression) on the above sample to determine predictors of poor outcome., Setting: Neonatal Unit, Johannesburg Hospital., Outcome Measures: Death or impairment (namely oxygen therapy > 28 days, grade 3 or 4 intraventricular haemorrhage, or ventricular enlargement)., Results: Poor outcome was predicted by birth weight, lowest oxygen requirement in the first 12 hours (which are two components of the CRIB score), and maximum partial arterial carbon dioxide pressure (PaCO2) in the first 72 hours. Other factors, including the full CRIB score, were not predictive of outcome., Conclusions: One method of selection of infants for expensive tertiary care is on the basis of predicted outcome. Birth weight remains a reasonable basis for this selection, but the inclusion of other factors, such as oxygen requirement, would improve accuracy. The CRIB score was not a suitable means to select infants in the local context, but may be of value in international comparisons.
- Published
- 1996
42. Neonatal and maternal services in Gauteng.
- Author
-
Ballot DE, Cooper PA, and Saloojee H
- Subjects
- Female, Hospitals, Private, Hospitals, Public, Humans, Infant, Newborn, Pregnancy, South Africa, Child Health Services, Maternal Health Services
- Published
- 1996
43. Selection of paediatric patients for intensive care.
- Author
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Ballot DE, Davies VA, Rothberg AD, and Ginsberg N
- Subjects
- Adolescent, Child, Child, Preschool, Critical Care standards, Diagnostic Tests, Routine, Female, Humans, Infant, Male, Medical Audit, Outcome Assessment, Health Care, Critical Care trends, Patient Selection, Severity of Illness Index
- Abstract
Objectives: To determine characteristics of older infants and children admitted to the paediatric intensive care unit (PICU) at Johannesburg Hospital; and to evaluate an admission score based on the PRISM score (an index of severity of illness) as a possible means for selection of patients for admission to the PICU., Design: Retrospective review of patient records and calculation of admission score from data., Setting: Paediatric intensive care unit at Johannesburg Hospital., Subjects: All patients older than 3 months of age admitted to the PICU from July 1993 to 31 March 1994., Results: There were 117 admissions during the study period with a mean age of 4,6 years. The mortality rate was 29.1%. The mean duration of ICU stay was 4,2 days. A review of requests for admission showed that over a 7-month period, 53 patients (> 3 months) could not be accommodated. In 71 patients with complete data, the admission score was significantly higher in non-survivors than survivors. The area under the ROC curve for predicting mortality from the admission score was 0.73 (SE 0.054). An admission score > or = 16 predicted mortality with a sensitivity of 42% and a specificity of 98%., Conclusions: PICU facilities at Johannesburg Hospital are insufficient to meet the demand. An admission score based on the PRISM score could assist in the selection of patients for these limited PICU facilities.
- Published
- 1995
44. Reasons for failure to administer antenatal corticosteroids in preterm labour.
- Author
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Ballot DE, Ballot NS, and Rothberg AD
- Subjects
- Female, Humans, Infant, Newborn, Pregnancy, Prenatal Care, Retrospective Studies, South Africa, Adrenal Cortex Hormones therapeutic use, Infant, Premature, Diseases prevention & control, Obstetric Labor, Premature
- Abstract
A retrospective review of 101 preterm infants delivered at Johannesburg Hospital was conducted to determine the use of antenatal corticosteroids (ACs). Overall there were 38 opportunities for the use of ACs of which 18 were missed. Of the remaining mothers, 32 presented in advanced labour, 22 presented with obstetric emergencies and 6 were managed as inevitable abortions. There was a significant association between lack of antenatal care and presentation in advanced labour. Therefore, although only 20% of mothers received ACs, there was no opportunity for their use in the majority of patients. The use of a safe and cost-effective measure such as ACs should not be ignored in a country with limited health resources. Better antenatal care as well as increased awareness among obstetricians is required to improve the situation.
- Published
- 1995
45. The introduction of surfactant replacement therapy into South Africa.
- Author
-
Davies VA, Rothberg AD, and Ballot DE
- Subjects
- Female, Humans, Infant, Newborn, Male, Biological Products, Hyaline Membrane Disease drug therapy, Pulmonary Surfactants therapeutic use
- Abstract
Within the context of limited financial and physical resources in South Africa, academic neonatologists have established strict criteria for ventilation of neonates with hyaline membrane disease (HMD). In the private sector neonatal care is less structured. Following the introduction of the artificial surfactant (Survanta) in November 1991 it was considered important to monitor its use in the public and private sectors. In collaboration with the marketing company a data sheet containing demographic information and clinical details was drawn up to be completed in each case where Survanta was administered to babies with HMD. Data from 155 babies treated at 10 hospitals were included in the final analysis (70 babies from 4 State-funded academic hospitals and 85 from 6 privately funded hospitals). Within the group of private hospitals there were some which treated large numbers of babies weighing > 2,000 g, while in a few others there was a relative excess of babies weighing < 1,000 g. There was a higher incidence of patent ductus arteriosus and intraventricular haemorrhage, and a higher mortality rate at the academic hospitals. Poor outcome at these institutions may largely have been due to poor antenatal care.
- Published
- 1995
46. The selection of infants for surfactant replacement therapy under conditions of limited financial resources.
- Author
-
Ballot DE, Rothberg AD, and Davies VA
- Subjects
- Female, Health Care Rationing, Humans, Hyaline Membrane Disease economics, Infant, Infant, Newborn, Male, Prospective Studies, Pulmonary Surfactants economics, Pulmonary Surfactants therapeutic use, Treatment Outcome, Hyaline Membrane Disease drug therapy, Patient Selection
- Abstract
The cost of surfactant replacement therapy (SRT) will restrict its use under conditions of limited health resources. Before the local advent of SRT, infants ventilated for hyaline membrane disease (HMD) had an overall survival rate of 87% and an incidence of bronchopulmonary dysplasia of 6.4%. This, together with the cost of SRT, prompted a study to identify those infants who would benefit the most from SRT. Twenty-two infants assessed as having severe HMD were randomised to receive SRT at 3 - 4 hours (9) or at 6 - 8 hours (13) after birth. Two infants (15%) in the latter group did not require SRT. The outcome of these two groups was the same. Of 56 infants assessed as having moderate HMD, only 24 (43%) qualified for SRT from 6 hours of age. The outcome of the SRT and non-SRT infants was comparable. The group of infants with moderate HMD had a significantly better outcome than those with severe HMD. A limited period of observation to assess the severity of illness did not compromise outcome in this group of 78 infants with moderate to severe HMD.
- Published
- 1995
47. The cost and effectiveness of surfactant replacement therapy at Johannesburg Hospital, November 1991-December 1992.
- Author
-
Davies VA, Ballot DE, and Rothberg AD
- Subjects
- Cost Savings, Female, Hospital Costs, Humans, Hyaline Membrane Disease economics, Infant, Newborn, Male, Oxygen Inhalation Therapy, Treatment Outcome, Hyaline Membrane Disease drug therapy, Pulmonary Surfactants administration & dosage
- Abstract
Objective: To assess the impact of surfactant replacement therapy (SRT) on the outcome of hyaline membrane disease (HMD) and to assess the cost implications of a policy of selective administration of artificial surfactant., Design: The short-term outcome of 103 newborns ventilated for HMD (61 selected for SRT according to initial and/or ongoing oxygen requirements) was compared with that of a historical control group of 173 infants ventilated for HMD before the introduction of SRT., Main Outcome Measures: Mortality and morbidity of HMD including death, bronchopulmonary dysplasia, pneumothorax, pulmonary haemorrhage, patent ductus arteriosus and intraventricular haemorrhage., Results: There were significant demographic differences between the treatment and control groups (black patients 74% v. 28%, P < 0.0001; unbooked mothers 72% v. 15%, P < 0.0001) as well as evidence of more severe lung disease in the treatment group (pressor support 44% v. 27%, P < 0.005; and paralysis during ventilation 38% v. 25%, P < 0.005). Pneumothorax was reduced in the SRT group (7% v. 17%, P < 0.01). There were no significant differences between the two groups in the incidence of BPD or mortality. The use of SRT added to the total cost of treating a patient ventilated for HMD., Conclusion: The selective use of SRT had the effect of converting severe disease into moderate disease rather than achieving maximal benefit in all cases of HMD through routine use of the product. A policy of restricting use may result in cost savings where resources are limited.
- Published
- 1995
48. The late administration of surfactant.
- Author
-
Ballot DE, Rothberg AD, and Davies VA
- Subjects
- Humans, Infant, Newborn, Pulmonary Surfactants therapeutic use, Respiration, Artificial, Retrospective Studies, Treatment Outcome, Hyaline Membrane Disease drug therapy, Pulmonary Surfactants administration & dosage
- Abstract
Current recommendations for surfactant replacement therapy (SRT) in the treatment of hyaline membrane disease (HMD) are to administer the drug as soon as possible after starting ventilation in order to prevent ventilator lung damage. We present a review of 18 infants (gestational age 32.4 +/- 1.9 weeks and birth weight 1,795 +/- 427 g) who received the initial dose of SRT after they were 12 hours old. Fourteen infants were assessed as having HMD and 4 as having congenital pneumonia. Overall there was a significant and sustained improvement in oxygenation as measured by arterial/alveolar oxygen ratios. The outcome of these infants was good, with a duration of ventilation of 7.9 +/- 4.3 days and a duration of hospitalisation of 26.2 +/- 12.6 days. No infant developed bronchopulmonary dysplasia. Of particular interest is that 3 infants weighing > 2,400 g with congenital pneumonia responded to a single delayed dose of SRT. Late SRT is effective and there may be a place for SRT in the treatment of conditions other than HMD.
- Published
- 1995
49. Congenital syphilis as a notifiable disease.
- Author
-
Ballot DE and Rothberg AD
- Subjects
- Health Personnel education, Humans, Infant, Newborn, Prenatal Care, Retrospective Studies, South Africa epidemiology, Syphilis, Congenital prevention & control, Syphilis, Congenital therapy, Syphilis, Congenital epidemiology
- Abstract
A review of the notification of congenital syphilis at Johannesburg Hospital from 1 May 1991 to 30 April 1992 was conducted to evaluate the effect of the recently introduced notification programme. A total of 209 Wassermann reaction (WR)-positive mothers were delivered during this time; 12 pregnancies (5.7%) resulted in stillbirths and 8 (3.8%) in incomplete abortions, and there were 2 (0.96%) early neonatal deaths. Only 45 (21.5%) of this group of WR-positive mothers had received antenatal care, and of these 9 (20%) had had adequately documented treatment. There were thus 200 potentially notifiable cases of congenital syphilis according to the Centers for Disease Control classification, of which 24 (12.0%) were actually notified. The goals of the notification programme, namely to increase awareness of congenital syphilis among health care providers and to evaluate the extent of the problem accurately, are clearly not being met.
- Published
- 1993
50. Some reasons for the failure to notify congenital syphilis.
- Author
-
Ballot DE and Rothberg AD
- Subjects
- Centers for Disease Control and Prevention, U.S., Female, Humans, Infant, Newborn, Pregnancy, South Africa epidemiology, Syphilis, Congenital prevention & control, United States, Syphilis, Congenital epidemiology
- Published
- 1993
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