Glycemic control, associated factors, acute complications of Type 1 Diabetes Mellitus in children, adolescents and young adults in Tanzania.

Objective: To determine the factors associated with poor glycemic control in children (1-10 years), adolescents (11-18 years) and young adults (19-40 years) with Type 1 Diabetes Mellitus (T1DM) in Kilimanjaro Christian Medical Center (KCMC) in Moshi, Mount Meru Regional Referral Hospital (MMRRH) and Meru District Hospital (MDH) in Arusha, Tanzania. Methods: Cross sectional study of 150 participants conducted from January to June 2019, data was collected by structured questionnaire and analyzed using SPSS version 23. Results: The mean HbA1c was 12.3 ± 2.2%, 146 had poor glycemic control (HbA1c > 7.5%). BMI, insulin regime and caretaker education were associated with poor glycemic control. There were 16 participants diagnosed in DKA and the most frequently reported complications in the prior 3 months were hyperglycemia (n = 25), DKA (n = 18) and hypoglycemia (n = 4). Conclusions: Glycemic control is still very poor particularly in adolescents. Significant associations with glycemic control were higher BMI, insulin regime and guardian education. The study revealed lower prevalence of DKA at diagnosis compared to previous studies.

Prevalence, Aetiology, and Antimicrobial Susceptibility Patterns of Urinary Tract Infection Amongst Children Admitted at Kilimanjaro Christian Medical Centre, Moshi, Tanzania.

BACKGROUND: Urinary tract infections (UTIs) in the paediatric population are well recognised as a cause of acute morbidity and chronic medical conditions, such as hypertension and renal insufficiency later in adulthood. Although antimicrobial treatment of UTIs is simple, the disease is still largely misdiagnosed and mismanaged. Moreover, increasing resistance to conventional antimicrobials is eroding the success of empiric therapy. OBJECTIVE: To determine prevalence, aetiological agents, and antimicrobial sensitivity patterns of UTIs amongst children admitted at Kilimanjaro Christian Medical Centre (KCMC). METHODOLOGY: A cross-sectional, hospital-based study was conducted at the KCMC Department of Paediatrics and Child Health between December 2013 and April 2014. All children ages 2 months to 14 years who were admitted in the paediatric ward during the study period and fulfilled study criteria were enrolled. Data were collected by structured questionnaires. A urine dipstick test was done to detect the presence of nitrites and leucocytes, and to perform microscopic analysis of leucocytes and bacteria. All positive cases with the urine dipstick were cultured to determine bacterial species and antimicrobial susceptibility. Urine culture is considered the gold standard to confirm UTI. RESULTS: A total of 343 children enrolled in the study. Of these, 208 (60.6%) were male and 135 (39.4%) were female. The urine dipstick test was positive for leucocyte esterase and nitrate in 87 (25.4%) and 33 (9.6%), respectively, and urine microscopy showed leucocytes and bacteria by microscope in 38 (11.1%) and 24 (7.0%) samples, respectively. UTI was confirmed by culture in 11.4% (39/343) of the samples. Female children and children less than 24 months old had a higher prevalence of UTI (17% and 15.8%, respectively). Female sex (odds ratio [OR] 2.46, 95% confidence interval [CI], 1.25-4.86), presence of leucocytes esterase (OR 32.20, 95% CI, 12.03-86.19), and nitrate in urine dipstick (OR 5.87, 95% CI, 3.44-3.65) were associated with UTI. Leucocyte esterase, nitrite, microscopic leucocyte, and bacteria were positive in 34 (87.2%), 24 (61.5%), 30 (78.9%), and 23 (59%) samples, respectively, using culture as a gold standard. Antimicrobial sensitivity of nitrites, leucocyte esterase, microscopic leucocyte, and bacteria was 38.1%, 87.2%, 97.4%, and 59.0%, respectively, and specificity was 94.1%, 82.6%, 82.2%, and 99.7%. The most common bacterial species isolated were Escherichia coli 46.2% (18/39) and Klebsiella pneumoniae 30.8% (12/39); both exhibited low susceptibility to ampicillin, co-trimoxazole, and clindamycin, but they were susceptible to ciprofloxacin, nalidixic acid, and ceftazidime. CONCLUSIONS: UTIs are common conditions affecting children admitted at KCMC. The prevalence is higher in infants and children younger than 24 months. E coli and K pneumoniae were the most common isolated organisms with low susceptibility in commonly used antibiotics. Antimicrobials, such as ciprofloxacin, ceftriaxone, and gentamicin, are more likely to be successful for empirical treatment of UTIs.

Providing Safe and Effective Preventative Antiretroviral Prophylaxis to HIV-exposed Newborns via a Novel Drug Delivery System in Tanzania.

BACKGROUND: In developing countries, antiretroviral therapy provides life-saving treatment to HIV-positive women and their children before, during and after birth. However, supply chain challenges such as long distances, medication shortages and nonfacility deliveries often compromise consistent access to prophylactic treatment for at-risk infants. A proposed intervention to address these challenges, often referred to as the "Pratt Pouch," allows for liquid-formulation medications, such as nevirapine (NVP), to be repackaged into single-dose pouches. These pouches are distributed antenatally. METHODS: HIV-positive women at Kilimanjaro Christian Medical Centre in Moshi, Tanzania received 14 pouches each containing a single dose of NVP for prevention of mother-to-child transmission. Women were trained on how to open the pouch and dispense the medication to their infants after delivery. All participating women were asked to return to Kilimanjaro Christian Medical Centre 7-14 days after delivery, where infant blood spots were collected to assess NVP levels. RESULTS: All enrolled women (21/21) administered NVP to their infants within 24 hours of birth. All enrolled infants (22/22) had NVP blood concentrations over 100 ng/mL and exhibited no health concerns attributable to over or under dosing. CONCLUSIONS: The Pratt Pouch intervention provides a clinically appropriate solution for addressing liquid-formulation antiretroviral access challenges in developing countries.

A randomized controlled trial of standard versus intensified tuberculosis diagnostics on treatment decisions by physicians in Northern Tanzania.

BACKGROUND: Routine tuberculosis culture remains unavailable in many high-burden areas, including Tanzania. This study sought to determine the impact of providing mycobacterial culture results over standard of care [unconcentrated acid-fast (AFB) smears] on management of persons with suspected tuberculosis. METHODS: Adults and children with suspected tuberculosis were randomized to standard (direct AFB smear only) or intensified (concentrated AFB smear and tuberculosis culture) diagnostics and followed for 8 weeks. The primary endpoint was appropriate treatment (i.e. antituberculosis therapy for those with tuberculosis, no antituberculous therapy for those without tuberculosis). RESULTS: Seventy participants were randomized to standard (n = 37, 53%) or intensive (n = 33, 47%) diagnostics. At 8 weeks, 100% (n = 22) of participants in follow up randomized to intensive diagnostics were receiving appropriate care, vs. 22 (88%) of 25 participants randomized to standard diagnostics (p = 0.14). Overall, 18 (26%) participants died; antituberculosis therapy was associated with lower mortality (9% who received antiuberculosis treatment died vs. 26% who did not, p = 0.04). CONCLUSIONS: Under field conditions in a high burden setting, the impact of intensified diagnostics was blunted by high early mortality. Enhanced availability of rapid diagnostics must be linked to earlier access to care for outcomes to improve.

Prevalence of mycobacteremia among HIV-infected infants and children in northern Tanzania.

Mycobacterium tuberculosis is a common cause of bloodstream infections among HIV-infected adults in sub-Saharan Africa, and is associated with high morbidity and mortality. We found no cases of mycobacteremia among 93 ill, HIV-infected children in northern Tanzania, despite optimization of laboratory methods and selection of patients thought to be at highest risk for disseminated infection.

Prevalence of lipodystrophy in HIV-infected children in Tanzania on highly active antiretroviral therapy.

OBJECTIVE: Highly active antiretroviral therapy (HAART) has been associated with lipodystrophy (LD) in adults but data are more limited for children. The purpose of this study was to determine the prevalence of and risk factors for LD in Tanzanian children receiving HAART by clinical assessment and to compare the results with anthropometric data. DESIGN AND METHODS: A cross-sectional study was performed in a cohort of HIV-infected children aged 1-18 years receiving HAART in a single center in Moshi, Tanzania. Age, gender, past and current medication regimens and anthropometric measurements were recorded. A clinical scoring method was used to assess LD. Backward binary multivariate logistic regression was used to determine relationships between anthropometric measurements and the presence of clinical LD. RESULTS: Among 210 HIV-infected children, the prevalence of LD was 30% (95% confidence interval [CI]: 23.8-36.2) overall, 19% (95% CI: 13.7-24.3) for lipoatrophy only, 3.8% (95% CI: 1.2-6.4) for lipohypertrophy only and 7.1% (95% CI: 3.6-10.6) for the mixed type. Most cases were mild. Older age and use of stavudine increased the risk of LD. Overall, the study population was stunted but not underweight. In children with relatively lower weight-for-height (<1), only the mid-upper arm circumference was found to be associated with lipoatrophy, while nearly all anthropometric measurements were associated with lipoatrophy in the well-nourished (weight-for-height ≥1) children. CONCLUSIONS: Our findings demonstrate that LD is a significant problem among Tanzanian HIV-infected children receiving HAART. Anthropometric measurements predicted LD in well-nourished children but generally failed to do so in relatively wasted children. Our findings support current efforts to avoid stavudine use in children.

Predicting mortality for paediatric inpatients where malaria is uncommon.

OBJECTIVE: As the proportion of children living low malaria transmission areas in sub-Saharan Africa increases, approaches for identifying non-malarial severe illness need to be evaluated to improve child outcomes. DESIGN: As a prospective cohort study, we identified febrile paediatric inpatients, recorded data using Integrated Management of Childhood Illness (IMCI) criteria, and collected diagnostic specimens. SETTING: Tertiary referral centre, northern Tanzania. RESULTS: Of 466 participants with known outcome, median age was 1.4 years (range 2 months-13.0 years), 200 (42.9%) were female, 11 (2.4%) had malaria and 34 (7.3%) died. Inpatient death was associated with: Capillary refill >3 s (OR 9.0, 95% CI 3.0 to 26.7), inability to breastfeed or drink (OR 8.9, 95% CI 4.0 to 19.6), stiff neck (OR 7.0, 95% CI 2.8 to 17.6), lethargy (OR 5.2, 95% CI 2.5 to 10.6), skin pinch >2 s (OR 4.8, 95% CI 1.9 to 12.3), respiratory difficulty (OR 4.0, 95% CI 1.9 to 8.2), generalised lymphadenopathy (OR 3.6, 95% CI 1.6 to 8.3) and oral candidiasis (OR 3.4, 95% CI 1.4 to 8.3). BCS <5 (OR 27.2, p<0.001) and severe wasting (OR 6.9, p<0.001) were independently associated with inpatient death. CONCLUSIONS: In a low malaria transmission setting, IMCI criteria performed well for predicting inpatient death from non-malarial illness. Laboratory results were not as useful in predicting death, underscoring the importance of clinical examination in assessing prognosis. Healthcare workers should consider local malaria epidemiology as malaria over-diagnosis in children may delay potentially life-saving interventions in areas where malaria is uncommon.

Histoplasmosis among hospitalized febrile patients in northern Tanzania.

Histoplasmosis may be common in East Africa but the diagnosis is rarely confirmed. We report 9 (0.9%) cases of probable histoplasmosis retrospectively identified among 970 febrile inpatients studied in northern Tanzania. Median (range) age was 31 (6, 44) years, 6 (67%) were female, 6 (67%) HIV-infected; 7 (78%) were clinically diagnosed with tuberculosis or bacterial pneumonia. Histoplasmosis is an important cause of febrile illness in Tanzania but is rarely considered in the differential diagnosis. Increased clinician awareness and availability of reliable diagnostic tests may improve patient outcomes.

Invasive bacterial and fungal infections among hospitalized HIV-infected and HIV-uninfected children and infants in northern Tanzania.

OBJECTIVE: To describe the contribution of paediatric HIV and of HIV co-infections to admissions to a hospital in Moshi, Tanzania, using contemporary laboratory methods. METHODS: During 1 year, we enrolled consecutively admitted patients aged ≥2 months and <13 years with current or recent fever. All patients underwent standardized clinical history taking, a physical examination and HIV antibody testing; standard aerobic blood cultures and malaria film were also done, and hospital outcome was recorded. Early infant HIV diagnosis by HIV-1 RNA PCR was performed on those aged <18 months. HIV-infected patients also received serum cryptococcal antigen testing and had their CD4-positive T-lymphocyte count and percent determined. RESULTS: A total of 467 patients were enrolled whose median age was 2 years (range 2 months-13 years); Of those patients, 57.2% were female and 12.2% were HIV-infected. Admission clinical diagnosis of HIV disease was made in 10.7% and of malaria in 60.4%. Of blood cultures, 5.8% grew pathogens; of these 25.9% were Salmonella enterica (including 6 Salmonella Typhi) and 22.2%Streptococcus pneumoniae. Plasmodium falciparum was identified on blood film of 1.3%. HIV infection was associated with S. pneumoniae (odds ratio 25.7, 95% CI 2.8, 234.0) bloodstream infection (BSI), but there was no evidence of an association with Escherichia coli or P. falciparum; Salmonella Typhi BSI occurred only among HIV-uninfected participants. The sensitivity and specificity of an admission clinical diagnosis of malaria were 100% and 40.3%; and for an admission diagnosis of bloodstream infection, they were 9.1% and 86.4%, respectively. CONCLUSION: Streptococcus pneumoniae is a leading cause of bloodstream infection among paediatric admissions in Tanzania and is closely associated with HIV infection. Malaria was over-diagnosed clinically, whereas invasive bacterial disease was underestimated. HIV and HIV co-infections contribute to a substantial proportion of paediatric febrile admissions, underscoring the value of routine HIV testing.

Establishment of haematological and immunological reference values for healthy Tanzanian children in Kilimanjaro Region.

OBJECTIVE: To determine the normal haematological and immunological reference intervals for healthy Tanzanian children. METHODS: We analysed data from 655 HIV-seronegative, healthy children from 1 month to 18 years of age from the Kilimanjaro Region of Tanzania for this cross-sectional study. Median and 95% reference ranges were determined for haematological and immunological parameters and analysed by age cohorts, and by gender for adolescents. RESULTS: Median haemoglobin (Hb) and haematocrit (Hct) for all age groups were higher than established East African reference intervals. Compared to U.S. intervals, reference ranges encompassed lower values for Hb, Hct, mean corpuscular volume, and platelets. Applying the U.S. National Institute of Health Division of AIDS (DAIDS) adverse event grading criteria commonly used in clinical trials to the reference range participants, 128 (21%) of 619 children would be classified as having an adverse event related to Hb level. CD4-positive T-lymphocyte absolute counts declined significantly with increasing age (P < 0.0001). For those aged under five years, CD4-positive T-lymphocyte percentages are lower than established developed country medians. CONCLUSIONS: Country-specific reference ranges are needed for defining normal laboratory parameters among children in Africa. Knowledge of appropriate reference intervals is critical not only for providing optimal clinical care, but also for enrolling children in medical research. Knowledge of normal CD4-positive T-lymphocyte parameters in this population is especially important for guiding the practice of HIV medicine in Tanzania.

Total lymphocyte count and World Health Organization pediatric clinical stage as markers to assess need to initiate antiretroviral therapy among human immunodeficiency virus-infected children in Moshi, Northern Tanzania.

BACKGROUND: The World Health Organization (WHO) has recommended the use of clinical staging alone and with total lymphocyte count to identify HIV infected children in need of antiretroviral therapy (ART) in resource-limited settings, when CD4 cell count is not available. METHODS: We prospectively enrolled children obtaining care for HIV infection at the Kilimanjaro Christian Medical Centre Pediatric Infectious Diseases Clinic in Moshi, Tanzania between March 2004 and May 2006 for this cohort study. RESULTS: One hundred ninety two (89.7%) of 214 children met WHO ART initiation criteria based on clinical staging or CD4 cell count. Several low-cost measures identified individuals who met WHO ART initiation criteria to the following degree: WHO stages 3 or 4 had 87.5% (95% CI, 82.8-92.1) sensitivity and, by definition, 100% (CI, 100-100) specificity; WHO recommended advance disease TLC cutoffs: sensitivity = 23.9% (95% CI, 17.3-30.5) specificity = 78.2% (95% CI, 67.3-89.1). Low TLC was a common finding, (50 of 214; 23%); however, it did not improve the sensitivity or specificity of clinical staging in identifying the severely immunosuppressed stage 2 children. Growth failure or use of total lymphocyte counts in isolation were not reliable indicators of severe immunosuppression or need to initiate ART. CONCLUSION: The use of total lymphocyte count does not improve the ability to identify children in need of ART compared with clinical staging alone. Low absolute lymphocyte count did not correlate with severe immunosuppression based on CD4 cell count in this cohort.