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Healthcare systems in recent times have witnessed timely diagnoses with a high level of accuracy. Internet of Medical Things (IoMT)-enabled deep learning (DL) models have been used to support medical diagnostics in real time, thus resolving the issue of late-stage diagnosis of various diseases and increasing performance accuracy. The current approach for the diagnosis of leukemia uses traditional procedures, and in most cases, fails in the initial period. Hence, several patients suffering from cancer have died prematurely due to the late discovery of cancerous cells in blood tissue. Therefore, this study proposes an IoMT-enabled convolutional neural network (CNN) model to detect malignant and benign cancer cells in the patient's blood tissue. In particular, the hyper-parameter optimization through radial basis function and dynamic coordinate search (HORD) optimization algorithm was used to search for optimal values of CNN hyper-parameters. Utilizing the HORD algorithm significantly increased the effectiveness of finding the best solution for the CNN model by searching multidimensional hyper-parameters. This implies that the HORD method successfully found the values of hyper-parameters for precise leukemia features. Additionally, the HORD method increased the performance of the model by optimizing and searching for the best set of hyper-parameters for the CNN model. Leukemia datasets were used to evaluate the performance of the proposed model using standard performance indicators. The proposed model revealed significant classification accuracy compared to other state-of-the-art models.
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Leucemia , Redes Neurales de la Computación , Humanos , Algoritmos , Diagnóstico por Computador/métodos , Leucemia/diagnósticoRESUMEN
Introduction: Severe malaria is a leading cause of mortality due to late presentation to health facilities. Hence, there is a need to identify and mitigate factors promoting delayed presentation with severe malaria. Objective: This study aimed to evaluate determinants of delayed presentation of children with severe malaria in a tertiary referral hospital. Methods: This study adopted a descriptive, cross-sectional design. The participants were children with a diagnosis of severe malaria, based on WHO diagnostic criteria. Delayed presentation was defined as presentation at the referral centre at >3 days of illness. Inferential analyses were done to identify factors associated with delayed presentation. P < 0.05 was considered statistically significant. Results: A total of 126 children with severe malaria participated in the study; their mean (standard deviation) age was 4.2 (5.3) years. The prevalence of delayed presentation in this study is 37.3%. Socio-economic class (P = 0.003); marital status (P = 0.015) and the number of health facilities visited before admission in the referral centre (P = 0.008) were significantly associated with delayed presentation. Children from upper socio-economic class were thrice more likely to present late, compared to those from lower social class (odds ratio [OR] = 3.728, 95% confidence interval [CI]: 1.694-8.208; P = 0.001). Likewise, the Yorubas were more delayed than the Binis (OR = 0.408, 95% CI: 0.180-0.928; P = 0.033). There was a negative correlation between caregivers' perception of treatment (r = -0.113, P = 0.21) of convulsion in severe malaria and timing of presentation. Conclusions: Delayed presentation is common with multifactorial determinants in the setting. Health education of caregivers on the consequences of delayed presentation in severe malaria is desirable.
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Cuidadores , Malaria , Niño , Preescolar , Estudios Transversales , Servicio de Urgencia en Hospital , Humanos , Malaria/complicaciones , Malaria/diagnóstico , Malaria/epidemiología , Nigeria/epidemiología , PercepciónRESUMEN
INTRODUCTION: circulatory failure is a major childhood emergency. Several disease-related and patient-related factors can predispose children to shock. Early detection of such factors will improve its prevention, management and outcome. This study aimed to evaluate the incidence, socio-demographic characteristics and pre-hospital care of children presenting with circulatory failure (shock) in children´s emergency room (CHER). METHODS: this study adopted cross-sectional design in CHER of the University of Benin Teaching Hospital, Nigeria, from October 2018 to March 2019. Data were collected using a semi-structured questionnaire eliciting demography, socio-economic status, pre-hospital care and presence of shock. In a sub-analysis, multiple logistic regression identified variables that are independently associated with circulatory failure in the participants, using adjusted odds ratio (OR) and 95% confidence intervals (CI). RESULTS: a total of 554 acutely-ill children participated in the study. Their median age was 60 (IQR: 24-132) months. Shock was present in 79 (14.3%) of the children on arrival at CHER. Children referred from private clinics were more likely to arrive CHER in shock compared to those coming directly from home (OR = 2.67, 95%CI: 1.07-6.69; p = 0.036) while children from lower socio-economic class families presented more frequently with shock than those from higher class (OR = 14.39, 95% CI: 2.61-79.44; p = 0.002). Also, children that received oral rehydration solution as pre-hospital care seemed more likely to present with shock in CHER (OR = 6.63, 95% CI: 2.15-20.46; p =0.001). CONCLUSION: quality of pre-hospital care and parental socio-economic status influence the presence of shock in children seen at the emergency unit. Focused health education and prevention of finance-related delays in emergency care are needed.
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Servicios Médicos de Urgencia/estadística & datos numéricos , Servicio de Urgencia en Hospital , Padres , Choque/terapia , Niño , Preescolar , Estudios Transversales , Servicios Médicos de Urgencia/economía , Femenino , Hospitales de Enseñanza , Humanos , Masculino , Nigeria , Factores SocioeconómicosRESUMEN
BACKGROUND: There is a dire need for paediatric critical care (PCC) services, but their availability in tertiary hospitals in Nigeria is not well defined. OBJECTIVE: We evaluated self-reported PCC practice, resources, and perceived challenges in various zones of the country, using paediatric residents' perspective. METHODS: This is a descriptive cross-sectional survey, carried out at an Intensive Course in Paediatrics at the University of Benin Teaching Hospital, Nigeria. Participants' PCC practice and perceived adequacy of PCC resources and services were assessed using a 100 mm uncalibrated visual analogue scale (VAS). A comparison between northern and southern zones was done. A 2-sided p value < 0.05 was considered significant. RESULTS: A total of 143 residents participated in the study, 37.1% of them were male, and 62.9% were female. Their mean age was 34.6 ± 3.2 years. They were mainly (86.7%) from federal institutions across the country. Less than a half (46.7%) of the trainees attended to critically ill children daily, but only 4 out of every 10 respondents stated that such severely ill children survived till hospital discharge; 12.1% of the trainees had PICUs in their institutions. Financial constraints hindered PICU admissions. PCC staff were relatively fewer in northern zones than southern zones (p < 0.05). Their perceived adequacy of PCC equipment and services were low (VAS scores 32.7 ± 2.6 and 30.9 ± 2.8, respectively) with a strong positive correlation between the two measurements (r = 0.839; p < 0.001). CONCLUSION: There is an unmet need for PCC practice in Nigerian tertiary hospitals with a resultant low survival rate of critically ill children. PCC training curricula and improved critical care resources are desirable in the setting.
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BACKGROUND: Congenital anomalies (CAs) refer to defects that are present in a newborn but occurred during intrauterine life. They can be due to genetic, modifiable environmental or multifactorial causes. There was no prior report of their burden in our state. AIMS: This study aims to describe the incidence, spectrum, predisposing factors and outcome of CAs in our setting. METHODS: It was a total population study of all neonates with major birth defects admitted into the unit during the study period. Their clinical-demographic features, diagnoses and outcome were entered into an excel sheet. Clinical detection of birth defects was based on standard diagnostic criteria. The data were analysed using IBM SPSS Statistics for Windows, Version 20.0. Armonk, NY: IBM Corp. Patterns and outcome of birth defects were presented as proportions. Selected characteristics were tested for possible association with birth defect using Fisher's exact test. The level of significance was set at P < 0.05. RESULTS: The incidence of major CAs was 4.3/1000 live births. Female neonates were more affected (59.0%). Participants' mean gestational age was 37.7 ± 3.3 weeks. Central nervous system anomalies were the most common (38.5%) birth defects. These were followed by musculoskeletal, body wall and digestive system anomalies: 28.2%, 23.1% and 10.3%, respectively. One-third (33.3%) of the infants had multiple anomalies. Nearly three quarters of them (74.0%) were referred, 18.0% died while 5.0% were discharged alive. CONCLUSION: A wide range of CAs occur in our setting with dire consequences. Provision of relevant specialised multidisciplinary care is desirable. Furthermore, pubic enlightenment on its modifiable possible causes can reduce the burden.
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Sistema Nervioso Central/anomalías , Anomalías Congénitas/epidemiología , Unidades de Cuidado Intensivo Neonatal/estadística & datos numéricos , Población Negra , Niño , Anomalías Congénitas/clasificación , Estudios Transversales , Anomalías del Sistema Digestivo/epidemiología , Femenino , Edad Gestacional , Humanos , Incidencia , Lactante , Recién Nacido , Anomalías Musculoesqueléticas/epidemiología , Nigeria/epidemiologíaRESUMEN
One of the major challenges of kidney transplantation is shortage of kidney donors. Care givers (CGs) are potential kidney donors, but the majority of them are unwilling to donate due to inadequate knowledge on kidney donation. This study evaluated the knowledge of kidney donation and its determinants among CGs in two tertiary hospitals in Southwest Nigeria. This was a cross-sectional study that was carried out in the Kidney Care Centre (KCC), Ondo and Babcock University Teaching Hospital (BUTH), Ilishan-Remo using a self-administered pretested questionnaire that assessed knowledge of kidney donation and its determinants. Pvalue of <0.05 was taken as significant. A total of 244 respondents participated in the study. The majority were below 40 years, married, and female. The proportion of respondents with adequate knowledge of kidney donation was 63.4%. More respondents from BUTH compared to KCC had adequate knowledge of kidney donation (80% vs. 46.7%, P ≤ 0.001). Similarly, the mean knowledge score was higher in respondents from BUTH (P ≤ 0.001). Factors that determined knowledge of kidney donation were female gender (AOR: 3.43, 95% CI: 1.25-9.40, P = 0.02) and social class (AOR: 1.22, 95% CI: 0.50-2.95, P ≤ 0.001). There was positive correlation between knowledge of kidney donation among the respondents from both hospitals and their willingness to donate kidneys (r = 0.439, P ≤ 0.001). Knowledge of kidney donation was better among BUTH's respondents. Gender and social class were predictors of knowledge of kidney donation. Improving knowledge of kidney donation may improve willingness to donate among the public.
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Cuidadores , Trasplante de Riñón , Donadores Vivos/provisión & distribución , Obtención de Tejidos y Órganos , Adulto , Estudios Transversales , Femenino , Conocimientos, Actitudes y Práctica en Salud , Humanos , Masculino , Persona de Mediana Edad , Nigeria , Clase Social , Centros de Atención Terciaria , Obtención de Tejidos y Órganos/métodosRESUMEN
INTRODUCTION: Preterm birth is a dire complication of pregnancy that poses huge long-term medical and financial burdens for affected children, their families, and the health care system. The aim of the present study was to identify characteristics associated with preterm births at the Lagos University Teaching Hospital (LUTH), Lagos, Nigeria from 2011 to 2013. METHODS: We obtained Information from 5,561 maternal, fetal/neonatal and obstetric records from the labor ward. We excluded delivery at less than 22 weeks (0.25%), post-term birth at ≥42 weeks gestation (1.3%), and unknown gestation (1.4%). Additionally, we excluded records of multiple births (5.4%) and stillbirths (8.3%) leaving 4,691 records of singleton live-births for analysis. Logistic regression analysis was performed comparing preterm birth (22-36 weeks gestation) to term birth (37-41 weeks gestation). Multiple variable models adjusting for maternal age, parity, fetal position, delivery method and booking status were also evaluated. Multinomial regression was used to identify characteristics associated with preterm birth (PTB) defined as early PTB (22-31 weeks gestation), moderate PTB (32-34 weeks gestation), late PTB (35-36 weeks gestation), compared to term birth (37-41 completed weeks gestation). RESULTS: From our data, 16.8% of the singleton live-birth deliveries were preterm (<37 weeks gestation). Of these, 4.7% were early (22-31 weeks), 4.5% were moderate (32-34 weeks) and 7.7% were late (35-36) PTBs. Older maternal age (≥35 years) [odds ratio (OR) = 1.41], hypertension (OR = 3.44) and rupture of membranes (OR = 4.03) were significantly associated with increased odds of PTB. Women being treated for the prevention of mother-to-child transmission of HIV were at a significantly decreased risk for PTB (OR = 0.70). Sixteen percent of women in this cohort were not registered for antenatal care in LUTH. These non-registered subjects had significantly greater odds of all categories of PTB, including early (odds ratio (OR) = 20.8), moderate (OR = 8.68), and late (OR = 2.15). CONCLUSION: PTB and risks for PTB remain high in Nigeria. We recommend that any high risk pregnancy should be referred to a tertiary center for prenatal care in order to significantly reduce adverse birth outcomes such as PTBs.
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Complicaciones del Embarazo/epidemiología , Nacimiento Prematuro/etiología , Atención Prenatal/estadística & datos numéricos , Adolescente , Adulto , Femenino , Edad Gestacional , Hospitales Universitarios , Humanos , Modelos Logísticos , Masculino , Edad Materna , Nigeria/epidemiología , Embarazo , Nacimiento Prematuro/epidemiología , Factores de Riesgo , Adulto JovenRESUMEN
We have recently developed a new method aimed at mass photo-conversion of photo-convertible fluorescence protein (PFP) fluorescence in transformed tobacco BY-2 cells. Using this method we reported recently that the Golgi apparatus is generated by the de novo formation from ER and the division of pre-existing Golgi stacks with similar extents In this work we report that the proliferation of the Golgi apparatus in tobacco cells that enter the growing cycle from the non-dividing cycle is quite similar to that in rapidly growing cells and that de novo formation from the ER and division of pre-existing stacks seems to contribute almost equally to the proliferation.
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Aparato de Golgi/metabolismo , Nicotiana/citología , Nicotiana/metabolismo , Proliferación Celular/efectos de los fármacos , Proliferación Celular/efectos de la radiación , Células Cultivadas , Cicloheximida/farmacología , Aparato de Golgi/efectos de los fármacos , Aparato de Golgi/efectos de la radiación , Proteínas Fluorescentes Verdes/metabolismo , Luz , Nicotiana/efectos de los fármacos , Nicotiana/efectos de la radiaciónRESUMEN
In higher plants, the numbers of cytoplasmic-distributed Golgi stacks differ based on function, age and cell type. It has not been clarified how the numbers are controlled, whether all the Golgi apparatus in a cell function equally and whether the increase in Golgi number is a result of the de novo formation from the endoplasmic reticulum (ER) or fission of pre-existing stacks. A tobacco prolyl 4-hydroxylase (NtP4H1.1), which is a cis-Golgi-localizing type II membrane protein, was tagged with a photoconvertible fluorescent protein, mKikGR (monomeric Kikume green red), and expressed in tobacco bright yellow 2 (BY-2) cells. Transformed cells were exposed to purple light to convert the fluorescence from green to red. A time-course analysis after the conversion revealed a progressive increase in green puncta and a decrease in the red puncta. From 3 to 6 h, we observed red, yellow and green fluorescent puncta corresponding to pre-existing Golgi; Golgi containing both pre-existing and newly synthesized protein; and newly synthesized Golgi. Analysis of the number and fluorescence of Golgi at different phases of the cell cycle suggested that an increase in Golgi number with both division and de novo synthesis occurred concomitantly with DNA replication. Investigation with different inhibitors suggested that the formation of new Golgi and the generation of Golgi containing both pre-existing and newly synthesized protein are mediated by different machineries. These results and modeling based on quantified results indicate that the Golgi apparatuses in tobacco BY-2 cells are not uniform and suggest that both de novo synthesis from the ER and Golgi division contribute almost equally to the increase in proliferating cells.
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Retículo Endoplásmico/fisiología , Aparato de Golgi/fisiología , Nicotiana/crecimiento & desarrollo , Ciclo Celular/fisiología , Nicotiana/fisiologíaRESUMEN
Background. Human immunodeficiency virus (HIV) is now a confirmed risk factor for kidney disease with an increased burden in persons of African descent. Method. We measured the serum cystatin C levels of 205 ART-naive, HIV-infected children by an ELISA technique and compared them with the levels of apparently healthy children. Result. The mean ± SD serum cystatin C level of children with HIV infection was 1.01 ± 0.44 mg/L, significantly higher than the mean value in the control group, that is, 0.72 ± 0.20 mg/L (P = 0.000). The mean ± SD cystatin C-based estimated GFR of children with HIV infection was 102.7 ± 31.0 mL/min/1.73 m(2), significantly lower than 126.9 ± 28.5 mL/min/1.73 m(2) in the control group, (P = 0.014). A significantly higher proportion of HIV-infected children compared to controls had eGFR < 90 mL/min/1.73 m(2) (21.5% versus 5.4%; P = 0.00). The prevalence of chronic kidney disease (CKD) among the HIV-infected children was 10.7%. The cystatin C-based eGFR of the HIV-infected children ≥5 years old correlated positively with their CD4 count (r = 0.23; P = 0.022). Conclusion. There is a high prevalence of CKD among HIV-infected children, requiring regular monitoring of their kidney function using a cystatin C-based method.
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Phakomatosis pigmentovascularis (PPV) is a rare sporadic genetic disorder characterised by co-occurrence of an extensive vascular nevus and a large pigmentary nevus with or without extracutaneous manifestations. There are four types of PPV with subtype 'a' for cutaneous involvement only and subtype 'b' for cutaneous and systemic involvement. PPV type IIa consists of nevus flammeus, Mongolian spots and sometimes nevus anemicus. Prognosis depends on associated systemic disorders. Two independent cases of PPV type IIb presented with nevus flammeus, aberrant Mongolian spots, ocular and central nervous system anomalies. Case 1 had external hydrocephalus previously unreported in PPV while case 2 had hydrocephalus exvacuo. Both patients had seizure disorder and neurodevelopmental delay. They were on long-term neurologic and ophthalmologic management while their cutaneous lesions partially regressed. PPV affects all racial and ethnic groups. The occurrence of external hydrocephalus in PPV expands the spectrum of its systemic manifestations.
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Hidrocefalia/complicaciones , Síndromes Neurocutáneos/complicaciones , Femenino , Humanos , Hidrocefalia/diagnóstico por imagen , Lactante , Recién Nacido , Masculino , Megalencefalia/complicaciones , Mancha Mongólica/complicaciones , Trastornos de la Pigmentación/complicaciones , Mancha Vino de Oporto/complicaciones , Radiografía , Convulsiones/complicacionesRESUMEN
Neonatal lupus is a rare syndrome resulting from passively transferred maternal autoantibodies during pregnancy. A male infant was delivered at term to a 29-year-old primiparous woman who was diagnosed of systemic lupus erythematosus 2 years earlier and had detectable levels of autoantibodies (antinuclear antibody (ANA), anti-dsDNA, anti-Ro and anti-La/SSB) in second trimester. However, the pregnancy was otherwise uneventful. He presented at the age of 8 week with a widespread hypopigmented macular rash on the trunk and patchy alopecia involving the hair line and the occipito-parietal regions of 3 weeks duration, anaemia and symptomatic thrombocytopaenia. Serologic test for autoantibodies was positive for ANA and anti-La/SSB. Further evaluation was normal. He was managed conservatively with blood products and topical corticosteroids. Mother was also advised to avoid direct exposure to sunlight and fluorescent light. Haematological parameters gradually normalised over 2 months and the skin lesions resolved completely by the age of 6 months.
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Lupus Eritematoso Sistémico/congénito , Administración Tópica , Corticoesteroides/administración & dosificación , Transfusión de Componentes Sanguíneos , Diagnóstico Diferencial , Humanos , Recién Nacido , Lupus Eritematoso Sistémico/diagnóstico , Lupus Eritematoso Sistémico/tratamiento farmacológico , Masculino , NigeriaRESUMEN
OBJECTIVE: To evaluate the pattern of cervical dilatation in live singleton pregnancies with spontaneous onset of labor and to compare any differences among nulliparas (P ara 0) and multiparas (Para >or=1). MATERIAL AND METHODS: Descriptive statistics are presented for 238 consecutive labor patients with spontaneous onset, >or=37 weeks gestation, live singleton pregnancy and who had spontaneous vertex delivery at the University of Ilorin Teaching Hospital, Nigeria, from May 2004 to June 2004. Pre-labor rupture of membrane and referred cases were excluded. RESULTS: The mean cervical dilatation on presentation and duration of labor before presentation in labor ward among nulliparas were 5.40 cm and 6.66 hours; and among multiparas, 6.45 cm and 5.15 hours, respectively, the overall mean being 6.12 cm and 5.63 hours, respectively. The average time spent to achieve full cervical dilatation from time of arrival in labor ward was longer in nulliparas (4.80 hours) than in multiparas (3.60 hours) (t test not significant; P> 0.05). Overall mean total length of first stage of labor was 9.36 hours, while the total length of first stage of labor was 11.03 hours and 8.53 hours for nulliparas and multiparas, respectively (difference is significant; t test P< 0.05). Significant negative correlation existed between parity and total length of first stage of labor. Mean cervical dilatation rate in labor ward (active phase) was higher in multiparas (1.83 cm/h) than in nulliparas (1.76 cm/h), but the difference was not significant (t test P> 0.05). No significant correlation existed between rate of cervical dilatation and maternal age, gestational age and fetal size. CONCLUSION: It is evident from this study that higher the parity the shorter the length of first stage of labor; however, significant difference existed only in the first half of first stage of labor between nulliparas and multiparas. Mean rate of cervical dilatation was greater than the WHO-specified and Philpott's lower limit of 1 cm/h in active phase of labor.
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Cuello del Útero/fisiología , Primer Periodo del Trabajo de Parto/fisiología , Adolescente , Adulto , Parto Obstétrico/métodos , Femenino , Edad Gestacional , Humanos , Edad Materna , Nigeria , Paridad , Embarazo , Factores de Tiempo , Adulto JovenRESUMEN
OBJECTIVE: To assess the acceptability of measures aimed at preventing mother-to-child transmission of HIV among counseled and yet-to-be-counseled antenatal women in a federal medical center in Nigeria. METHODS: A valid and reliable questionnaire was interviewer administered to newly booking antenatal women who were yet to be counseled about HIV/AIDS and women on an antenatal follow-up visit who had already been counseled about HIV/AIDS. RESULTS: A total of 108 newly booked women and 116 women on follow-up visit responded to the questionnaire. The proportion of the counseled women who accepted HIV screening (98%) was significantly higher than the proportion of the yet-to-be-counseled women who would want to be screened (88%). Also, the proportions of the counseled women who accepted HIV screening so as to benefit from interventions like prevention of mother-to-child transmission, antiretroviral therapy and prevention of transmission to partner were significantly higher than the proportions among the yet-to-be-counseled women. The majority of the women in the study would accept antiretroviral drugs and avoidance of breastfeeding to prevent mother-to-child transmission, while only 29 (14%) respondents would accept cesarean section to prevent mother-to-child transmission. There was no statistically significant difference in the proportion of the counseled women (15%) who would accept cesarean section to prevent mother to child transmission when compared to the proportion among the yet-to-be-counseled women (11%). CONCLUSION: Antenatal HIV screening is acceptable to most pregnant women attending our hospital, and while many would accept antiretroviral drugs and avoidance of breastfeeding to prevent mother-to-child transmission of HIV, there is low acceptability of elective cesarean section.
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Síndrome de Inmunodeficiencia Adquirida/prevención & control , Síndrome de Inmunodeficiencia Adquirida/transmisión , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Aceptación de la Atención de Salud/estadística & datos numéricos , Complicaciones Infecciosas del Embarazo , Adolescente , Adulto , Fármacos Anti-VIH , Lactancia Materna/efectos adversos , Lactancia Materna/estadística & datos numéricos , Cesárea , Femenino , Humanos , Tamizaje Masivo , Relaciones Madre-Hijo , Nigeria/epidemiología , Embarazo , Encuestas y CuestionariosRESUMEN
OBJECTIVE: To evaluate the awareness and knowledge of mother-to-child transmission of HIV and its prevention among pregnant women attending the antenatal clinic of a federal medical center in Nigeria. METHODOLOGY: Valid and reliable questionnaires were interviewer administered to pregnant women at antenatal booking during the study period, prior to being counseled on HIV/AIDS. RESULTS: All respondents were aware of HIV/AIDS. The main sources of information included posters/billboards (37%), radio (36%), television (28%) and health workers (34%). The majority (90%) of the respondents were aware that HIV/AIDS can coexist with pregnancy, but only 68% were aware of mother-to-child transmission. Transplacental route, vaginal delivery and breastfeeding were identified as routes of transmission from mother to child by 65%, 38% and 52% of respondents, respectively. Caesarean section was believed to be a route of transmission by 43% of respondents, but only 3% identified caesarean section as a method of prevention of mother-to-child transmission. CONCLUSION: Though the level of awareness of HIV/AIDS among women attending our antenatal clinic is high, the level of knowledge about mother-to-child transmission is inadequate. There is a need for adequate counseling and education about HIV/AIDS and mother-to-child transmission in antenatal clinics and also through public campaign media.