Clinical Profile of Patients on Highly Active Antiretroviral Therapy (HAART) Seen in a Tertiary Eye Clinic.

Background: Highly active antiretroviral therapy (HAART) is the medication regimen for the management of human immunodeficiency virus. Over time, it has been dubbed to have revolutionised the clinical course and outcomes of HIV/AIDS. Objective: The objective of this study is to determine the clinical factors associated with the ocular manifestation of HIV/AIDS among patients on HAART. Materials and Methods: This was a descriptive cross-sectional study conducted at the ophthalmology department of the University of Nigeria Teaching Hospital (UNTH) in 2017 among adult patients (≥18 years) attending the hospital's antiretroviral therapy (ART) clinic and selected using systematic random sampling technique. Statistical Package for Social Sciences (SPSS) version 21 was used for data analysis, with variables being summarised using frequencies and proportions. Inferential statistics (t test, Chi-square test, and Fisher's exact test) was used to test associations between variables. A level of significance was set at a P value of less than 0.05 corresponding to a 95% confidence interval. Results: A majority of patients were in WHO stages 1 and 2 of HIV and the mean CD4+ cell count of the whole population was 575.0 ± 512.56 cells/µL, while that of those with ocular manifestations was 315.2 ± 290.76 and 633.7 ± 533.54 cells/µL for those who do not have ocular manifestation. There was a significant association between CD4+ cell count and ocular manifestations such as conjunctival microvasculopathy, anterior uveitis, and cytomegalovirus retinitis. Conclusion: Our results suggest that HAART has some positive effect on the clinical profile of people with HIV/AIDS with CD4+ count being a major determinant of ocular manifestations.

Determinants of participation in glaucoma genomic research in South East Nigeria: A cross-sectional analytical study.

BACKGROUND: Genomic research advances the understanding of human health and disease. It also drives both the discovery of salient genetic association(s) as well as targeted screening, diagnostic and therapeutic strategies. Human subject participation is crucial for the success of genomic research. METHODS: This is a cross sectional analytical study conducted at two tertiary centers in Enugu Southeast Nigeria. Semi structured questionnaires were administered to eligible consenting participants. Data on their demographics, willingness to participate in genomic research and motivation for participation were obtained. Data was analyzed using Stata version 17 and summarized using median, frequencies and interquartile range(IQR). Associations between covariates were evaluated with Chi square test and multivariable logistic regression. RESULTS: Among 228 glaucoma subjects who participated in our study,119(52.2%) were female and 109(47.8%) were male. The median age was 64 years(IQR = 50-76). Although 219 (96.0%) participants expressed willingness to participate in a glaucoma genetic study, only 27(11.9%) of them will be willing to participate if there will not be feedback of results to participants (χ2 = 18.59, P<0.001). No participant expressed willingness to submit ocular tissue samples. Majority (96.2%) of subjects will not participate if the intended research required submission of body samples after death. Desire to know more about glaucoma (63%) was the most common reason for participation. In a multivariable logistic model, subjects between 61-90 years (p = 0.004, OR = 7.2) were 7 times more likely to express willingness to participate in glaucoma genetic research after adjusting for other covariates when compared to subjects aged 41-60 years. Other covariates did not influence participants' willingness. CONCLUSION: Glaucoma subjects are more likely to be willing to participate in genetic research, if they would receive feedback of results. Willingness to participate in genetic research is significantly associated with age. LIMITATIONS: We did not evaluate the salient options for feedback of results to participants in our study.

SOX2 pathogenic variants with normal eyes: Expanding the phenotypic spectrum.

SOX2 pathogenic variants, though rare, constitute the most commonly known genetic cause of clinical anophthalmia and microphthalmia. However, patients without major ocular malformation, but with multi-system developmental disorders, have been reported, suggesting that the range of clinical phenotypes is broader than previously appreciated. We detail two patients with bilateral structurally normal eyes along with 11 other previously published patients. Our findings suggest that there is no obvious phenotypic or genotypic pattern that may help set apart patients with normal eyes. Our patients provide further evidence for broadening the phenotypic spectrum of SOX2 mutations and re-appraising the designation of SOX2 disorder as an anophthalmia/microphthalmia syndrome. We emphasize the importance of considering SOX2 pathogenic variants in the differential diagnoses of individuals with normal eyes, who may have varying combinations of features such as developmental delay, urogenital abnormalities, gastro-intestinal anomalies, pituitary dysfunction, midline structural anomalies, and complex movement disorders, seizures or other neurological issues.

Title: Clinico-pathological and survival profiles of orbito-ocular tumors in Enugu Nigeria. Is there an emerging trend?

BACKGROUND: Orbito-ocular tumors are rare, but they cause significant morbidity and mortality. There are reported variations in their pattern of presentation and frequency of occurrence. OBJECTIVE: To evaluate the occurrence, clinico-pathologic spectrum, and patterns of orbito-ocular neoplasms as well as the treatment and outcome profiles. METHODS: A 5-year retrospective analysis of consecutive patients treated for orbito-ocular tumors. We evaluated patterns of occurrence, clinic-pathological concordance, and outcome of treatment. Associations were evaluated with chi square and confidence interval. Data analysis was performed using SPSS for windows version 23 and inferences were judged using the 95% level of significance. RESULTS: Among 100 patients with orbito-ocular masses, 62 were histologically confirmed. The female to male ratio (F:M) was 1.0. Their ages ranged from 7 months to 93 years, mean = 33.4 ± 2.7 years. There was an age variation among tumor types. Patients with squamous cell carcinoma (SCC) had a mean age of 46.4 years, while for retinoblastoma the mean age was 3.09 years. All patients with retinoblastoma had proven macroscopic orbital extension. SCC was the most common tumor type (n = 19), however, among children, retinoblastoma (n = 11) was more common. Melanocytic nevus, sebaceous gland carcinoma, and adenocarcinoma of lacrimal gland (n = 6, n = 5, n = 5), respectively, among other tumors were treated. Concordance between clinical and histopathological diagnoses was obtained among 30 (48.3%) cases. 1-year and 3-year survival for retinoblastoma was 90% and 72.9%, respectively, and 78.9% and 68.4% for SCC. CONCLUSION: SCC is currently the most common orbito-ocular tumor in our setting.

Refractive Error and Visual Impairment Among School Children: Result of a South-Eastern Nigerian Regional Survey.

PURPOSE: To determine the prevalence refractive errors and causes of visual impairment in school children in the south-eastern region of Nigeria. METHODS: School-based cross-sectional samples of children 5 to 15 of age in both urban and rural areas were profiled through cluster sampling. The main outcome measures were presenting, uncorrected, and best-corrected visual acuity using the Refractive Error in School-age Children (RESC) protocol. RESULTS: A total of 5723 children were examined during the study period comprising 2686 (46.9%) males and 3037 (53.1%) females; (M:F ratio 0.9:1) and aged 10.49±2.74SD of mean (range, 5 to 15 years). The age group 12 to <13 accounted for the highest 776 (13.6%) number of the study participants. The uncorrected visual acuity (VA) of <20/40 (6/12) was seen in 188 (3.4%) of the study participants while the presenting and best-corrected visual acuity of <20/40 (6/12) were noted in 182 (3.4%) children and 14 (0.2%) children, respectively. Refractive error was the principal cause of visual impairment. CONCLUSION: Prevalence of refractive error is low. Myopia is the principal cause of refractive error occurring more in females and in urban schools. The main cause of visual impairment is refractive error, and most children that need spectacle correction did not have them. Program to identify children with refractive error in addition to providing free or affordable optical services remains the key to preventing visual impairment from refractive error particularly in resource-poor settings.

Must we remain blind to undergraduate medical ethics education in Africa? A cross-sectional study of Nigerian medical students.

BACKGROUND: As the practice of medicine inevitably raises both ethical and legal issues, it had been recommended since 1999 that medical ethics and human rights be taught at every medical school. Most Nigerian medical schools still lack a formal undergraduate medical ethics curriculum. Medical education remains largely focused on traditional medical science components, leaving the medical students to develop medical ethical decision-making skills and moral attitudes passively within institutions noted for relatively strong paternalistic traditions. In conducting a needs assessment for developing a curriculum germane to the Nigerian society, and by extension most of Sub-Saharan Africa, this study determined the views of Nigerian medical students on medical ethics education, ethical issues related to the doctor-patient relationship and the ethical/professional dilemmas they are confronted with. METHODS: Using self-administered 63-item structured questionnaires, a cross-sectional survey of the final year medical students of the University of Nigeria was conducted in July 2015.Using the Statistical Package for the Social Sciences software (SPSS Version 17), frequency counts and percentages were generated. RESULTS: The sample included 100 males (71.4%) and 40 females (28.6%), with the respective mean (SD) age being 24.6(5.61) and 21.8 (6.38) years. Only 35.7% were satisfied with their medical ethics knowledge, and 97.9% indicated that medical ethics should be taught formally. Only 8.6% had never witnessed a medical teacher act unethically. The dilemmas of poor communication between physicians and patients, and the provision of sub-standard care were reported highest for being encountered 'often'. A majority (60.7%) indicated that "a doctor should do his best always, irrespective of the patient's wishes". No significant difference in responses across gender was noted. CONCLUSION: There is a strong desire by the contemporary Nigerian medical student for medical ethics education. Their lack of exposure in medical ethics in an ethically challenging environment suggest a dire need for the development of an appropriate medical ethics curriculum for them and the provision of an ethically conducive learning environment.

Monotherapy with amlodipine or hydrochlorothiazide in patients with mild to moderate hypertension: Comparison of their efficacy and effects on electrolytes.

BACKGROUND: Amlodipine and hydrochlorothiazide (HCTZ) are commonly prescribed in Nigeria either as a monotherapy or in combination with other drugs. The present study was designed to investigate the antihypertensive efficacy of monotherapy with amlodipine or HCTZ and their effects on electrolyte profile in patients with mild to moderate hypertension. METHODS: A single-blind randomized clinical study was used; fifty patients newly diagnosed with mild to moderate hypertension (aged 33 to 60 years) were recruited and divided into two groups: amlodipine or hydrochlorothiazide each comprising of 25 subjects. The subjects received 5mg of amlodipine or 25mg of hydrochlorothiazide in their respective group once daily for 4 weeks. Blood pressure, serum and urine electrolytes were measured at baseline and weekly throughout the experiment. RESULTS: At the end of follow up, amlodipine reduced systolic and diastolic blood pressure significantly more (p<0.001) than HCTZ. At the end of follow up, blood pressure was reduced to normal in 80% of the subjects in amlodipine group compared to 50% in HCTZ. Amlodipine had no significant effect on electrolyte profile of subjects unlike HCTZ which significantly changed both their serum and urine electrolytes. CONCLUSIONS: Monotherapy with amlodipine was more effective than HCTZ in black patients with mild to moderate hypertension and in addition maintained electrolyte balance.

Unmet visual needs of children with Down syndrome in an African population: implications for visual and cognitive development.

PURPOSE: To determine the magnitude and types of ocular disorders in children with Down syndrome in an African population and to assess to what extent these visual needs have been met.
 METHODS: This is a cross-sectional study of children with Down syndrome attending a school for the mentally challenged in Southeastern Nigeria. Visual acuity, ocular examination, and cycloplegic refraction were done on all cooperative participants. Information was sought from parents/caregivers to ascertain previous ocular treatment/spectacle usage. 
 RESULTS: A total of 30 children with Down syndrome aged 5-15 years were examined. Uncorrected refractive errors were detected in 76.4% of them. Other lesions included mongoloid slant (53.5%), strabismus (33.3%), ptosis (33.3%), nystagmus (13.3%), and cataract (3.3%). None of the children with refractive errors had ever worn spectacles.
 CONCLUSIONS: Refractive error is a common finding in this population. There is a high unmet visual need in these children. This may have implications for visual and cognitive development. Early screening for ocular disorders in Down syndrome is recommended to detect and treat them.

Factors influencing choice of medical specialty of preresidency medical graduates in southeastern Nigeria.

BACKGROUND: This study examined the determinants of specialty choice of preresidency medical graduates in southeastern Nigeria. METHODS: We used a comparative cross-sectional survey of preresidency medical graduates who took the Basic Sciences Examination of the Postgraduate Medical College in Enugu, southeastern Nigeria, in March 2007. Data on participants' demographics and specialty selected, the timing of the decision, and factors in specialty selection were collected using a questionnaire. Data were examined using descriptive and analytical statistics. P < .05 was considered significant. RESULTS: The survey response rate was 90.8% (287 of 316). The sample included 219 men and 68 women, ranging in age from 24 to 53 years and with a mean age of 33.5 ± 1.1 (SD) years. Career choice was more frequently influenced by personal interest (66.6%), career prospects (9.1%), and appraisal of own skills/aptitudes (5.6%), and it was least affected by altruistic motives (1.7%) and influence of parents/relations (1.7%). The respondents selected specialties at different rates: obstetrics and gynecology (22.6%), surgery (19.6%), pediatrics (16.0%), anesthesiology (3.1%), psychiatry (0.3%), and dentistry (0.0%). Most (97.2%) participants had decided on specialty choice by the end of their fifth (of a total 16 years) postgraduate year. The participants significantly more frequently preferred surgery and pediatrics to other disciplines (P < .002, after Bonferroni correction for multiple comparisons). CONCLUSIONS: Preresidency medical graduates in southeastern Nigeria were influenced by personal interest, career prospects, and personal skills/aptitude in deciding which specialty training to pursue. The most frequently chosen specialties were surgery and pediatrics. These findings have implications for Nigeria's education and health care policy makers.