Sensorineural hearing loss in infants with neonatal jaundice in Lagos: a community-based study

Olusanya, Bolajoko O.; Somefun, Abayomi O.

doi:10.1179/146532809x440734

Cited by 20 publications

(21 citation statements)

References 27 publications

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“…For developing countries such as India and Egypt, the reported prevalence ranges are 13.4 to 14% [57,58] and reports available for sub-Saharan Africa suggest an even higher prevalence. In Nigeria the reported prevalence ranges between 10.3 to 15.9% [32] and in South Africa an even higher prevalence of 21.4% was recently reported [24]. In the current cohort of children with PCEHL the prevalence of ANSD is lower than expected and may be attributed in part to the majority of the research sample (92.4%) being private health care patients.…”

Section: Discussionmentioning

confidence: 56%

“…In South Africa, perinatal risk factors are more likely to occur in public health care patients, since adequate health care are known to be more accessible for private patients [59]. Therefore, children in this study were less exposed to environmental, maternal and child health related risk factors that predispose ANSD in populations from the developing world [32,33]. Also, since this cohort include children being diagnosed with profound PCEHL over the past 18 years, it is possible that the diagnosis of ANSD was not differentiated from SNHL in earlier years, given that the first report on auditory neuropathy dates back to 1996 [60] and accurate diagnosis of the disorder only followed in subsequent years.…”

Section: Discussionmentioning

confidence: 89%

“…ANSD was diagnosed in 21% of the cases, suggesting a larger prevalence for populations from developing contexts such as sub-Saharan Africa, as has previously been reported. This is attributed to an increased incidence of environmental, maternal and child health related risk factors predisposing ANSD [32,33].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Profound childhood hearing loss in a South Africa cohort: Risk profile, diagnosis and age of intervention

Roux

Swanepoel

Louw

et al. 2015

International Journal of Pediatric Otorhinolaryngology

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Section: Discussionmentioning

confidence: 56%

Section: Discussionmentioning

confidence: 89%

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Profound childhood hearing loss in a South Africa cohort: Risk profile, diagnosis and age of intervention

Roux

Swanepoel

Louw

et al. 2015

International Journal of Pediatric Otorhinolaryngology

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“…Recent reports have highlighted that developing regions such as sub-Saharan Africa may have risk factors for PCEHL that vary significantly from those established for developed world regions [9] and subsequently may present with a larger incidence of ANSD [10]. Unique developing world risk factors such as undernutrition, maternal high blood pressure and unskilled birth attendants has been associated with congenital and early-onset hearing loss in Nigeria [9,11].…”

Section: Introductionmentioning

confidence: 99%

Childhood hearing loss and risk profile in a South African population

Swanepoel

Johl

Pienaar

2013

International Journal of Pediatric Otorhinolaryngology

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Objective: To describe the nature of hearing loss and associated risk profile in a representative South African population of infants and children diagnosed at a pediatric referral clinic. Methods:A retrospective review of patient files for a pediatric auditory evoked potential clinic in Pretoria was conducted (January 2007 to December 2011).Collected data included demographical information, risk factors from case history questionnaire, diagnosis (type and degree of hearing loss), documented age of caregiver suspicion and age of first diagnosis. Results:Hearing loss was present in 73% (73/100) of cases evaluated. Permanent hearing losses (SNHL, ANSD & Mixed) constituted 76% of losses. Unilateral hearing losses constituted 8% of SNHL and 20% of conductive hearing loss. ANSD was diagnosed in 21.4% and SNHL in 78.6% of permanent non-conductive hearing loss cases. The most prevalent SNHL risk was family history of hearing loss and for ANSD it was admittance to the NICU for more than 5 days. The majority of the sample was diagnosed with a permanent bilateral SNHL and ANSD after 36 months of age (47%) despite 40% already suspected of having a hearing loss before 12 months of age. Conclusions:A high prevalence of ANSD was found with preventable risk factors often indicated. Age of diagnosis was significantly delayed, evidencing the lack of early hearing detection services in South Africa. The majority of children were diagnosed at ages precluding optimal benefits from early detection and subsequent intervention.3

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“…3 For most survivors of acute bilirubin encephalopathy/ kernicterus, disabling consequences occur in locations (such as Nigeria) without the medical or technological support necessary to improve the quality of life. 4,5 Survival with such distressing disabilities is indeed a tragedy, especially where prevention is possible.…”

mentioning

confidence: 99%

Safety and Efficacy of Filtered Sunlight in Treatment of Jaundice in African Neonates

et al. 2014

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WHAT'S KNOWN ON THIS SUBJECT: Phototherapy effectively treats unconjugated hyperbilirubinemia. However, in resourcepoor settings, functional phototherapy devices are often unavailable due to financial constraints or erratic electrical power availability.WHAT THIS STUDY ADDS: Filtered-sunlight phototherapy could be a cost-effective option in resource-poor settings with abundant sunlight. abstract OBJECTIVES: Evaluate safety and efficacy of filtered-sunlight phototherapy (FS-PT).METHODS: Term/late preterm infants #14 days old with clinically significant jaundice, assessed by total bilirubin (TB) levels, were recruited from a maternity hospital in Lagos, Nigeria. Sunlight was filtered with commercial window-tinting films that remove most UV and significant levels of infrared light and transmit effective levels of therapeutic blue light. After placing infants under an FS-PT canopy, hourly measurements of axillary temperatures, monitoring for sunburn, dehydration, and irradiances of filtered sunlight were performed. Treatment was deemed safe and efficacious if infants were able to stay in FS-PT for $5 hours and rate of rise of TB was ,0.2 mg/dL/h for infants #72 hours of age or TB decreased for infants .72 hours of age. RESULTS:A total of 227 infants received 258 days of FS-PT. No infant developed sunburn or dehydration. On 85 (33%) of 258 treatment days, infants were removed briefly from FS-PT due to minor temperaturerelated adverse events. No infant met study exit criteria. FS-PT was efficacious in 92% (181/197) of evaluable treatment days. Mean 6 SD TB change was -0.06 6 0.19 mg/dL/h. The mean 6 SD (range) irradiance of FS-PT was 38 6 22 (2-115) mW/cm KEY WORDS newborn jaundice, hyperbilirubinemia, sunlight, phototherapy, irradiance, UV, IR, low-middle income countries ABBREVIATIONS AAP-American Academy of Pediatrics ABT-axillary body temperature FS-PT-filtered-sunlight phototherapy PT-phototherapy TB-total serum/plasma bilirubin Dr Slusher conceptualized and designed the study, approved the design and implementation of the study, coordinated and supervised data collection, drafted the initial manuscript, and critically reviewed and revised the manuscript; Dr Vreman contributed to the design of the study and took responsibility for the selection of the films, design, procurement and building of the treatment canopies, and also critically reviewed and revised the draft manuscript; Dr Olusanya approved the design and implementation of the study, coordinated and supervised data collection, and critically reviewed and revised the manuscript; Mr Wong and Dr Stevenson contributed to the design of the study, participated in the film-selection studies, and critically reviewed and revised the draft manuscript; Dr Brearley served as the statistician for the study, and critically reviewed and revised the manuscript; Dr Vaucher contributed to study design, data analysis, and manuscript preparation, and also critically reviewed and revised the manuscript; and all authors approved the final manuscript as submitted.

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Sensorineural hearing loss in infants with neonatal jaundice in Lagos: a community-based study

Cited by 20 publications

References 27 publications

Profound childhood hearing loss in a South Africa cohort: Risk profile, diagnosis and age of intervention

Profound childhood hearing loss in a South Africa cohort: Risk profile, diagnosis and age of intervention

Childhood hearing loss and risk profile in a South African population

Safety and Efficacy of Filtered Sunlight in Treatment of Jaundice in African Neonates

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