Underreporting of Hepatitis E virus infection in Tanzania: a systematic review

Introduction: Hepatitis E virus (HEV) frequently causes acute hepatitis with water-borne outbreaks in endemic areas. Updated evidence is required in Tanzania to inform the policymakers and identify research gaps.Objective: The aim of this study was to analyse publications on the epidemiology of HEV in Tanzania.Methods: We systematically searched all available publications from the major research databases, and selected websites for unindexed studies, policies, and reports for data reporting on the epidemiology of HEV in Tanzania from inception to date.Results: Five articles were found. There was only one study, performed in 1998, that reported the prevalence of HEV infection in the general  Tanzanian population (0.2%). Three other studies reported prevalence’s of 8%, 6.6% and 0% among HIV-infected pregnant women, reproductive-aged women (15-45 years), and HIV uninfected pregnant women respectively, with no identified associated factors for HEV infection. One last article described an outbreak that affected 690 people with children’s predominance, only 49 samples were tested for HEV and 14 confirmed positive.Conclusions: Our study showed that HEV infection appears to be markedly underreported in Tanzania as evidenced by a significantly lower  reported prevalence compared to neighbouring countries with similar demographics. Increased awareness of this disease by health care  professionals and further epidemiological studies to establish the baseline data of the disease are needed urgently. Keywords: Hepatitis E, prevalence, epidemiology, review, Tanzani

Cytopenias among ART-naive patients with advanced HIV disease on enrolment to care and treatment services at a tertiary hospital in Tanzania: A crosssectional study

Background: HIV/AIDS causes high morbidity and mortality through both immunosuppression and complications not directly related to immunosuppression. Haematological abnormalities, including various cytopenias, occur commonly in HIV through immune and non-immune pathways. Though these complications could potentially cause serious clinical implications, published literature on the magnitude of this problem and its associated factors in Tanzania is scarce. This study aimed at determining the prevalence and risk factors of HIV-associated cytopenias among ART-naive patients enrolling for care and treatment services at Bugando Care and Treatment Centre (CTC) in Mwanza, Tanzania.Methods: This was a cross-sectional clinic-based study done between March 2015 and February 2016, involving all antiretroviral therapy (ART)-naive adult HIV positive patients enrolling for care and treatment services at Bugando CTC. Patients younger than 18 years and those with missing data were excluded. Data were analysed using Stata version 11 to determine the prevalence and risk factors of cytopenias.Results: A total of 1205 ART-naive patients were included. Median age was 41 years (interquartile range [IQR] 32 to 48). Most participants were female (n = 789; 65.6%), with a female-to-male ratio of 2:1. The median baseline CD4 count was 200 cells/μL (IQR 113 to 439). About half (49%) of the study participants had baseline CD4 counts less than 200 cells/μL. Anaemia, leucopenia, and thrombocytopenia were found in 704 (58.4%), 285 (23.6%), and 174 (14.4%) participants, respectively, and these were strongly associated with advanced HIV infection.Conclusions: The magnitude of cytopenias is high among ART-naive HIV-positive adults, and cytopenias are more marked with advanced HIV infection. Early diagnosis of HIV and timely initiation of ART could potentially reduce the number of people living with advanced HIV disease and its associated complications, including the cytopenias investigated in this study. Patients with cytopenias should undergo thorough screening for tuberculosis, which is an important and treatable correlate of cytopenia, in addition to close follow-up for any potential negative outcomes

Centrally-located pulmonary hamartoma diagnosed in a 16-year-old boy presenting with chronic chest pain: a case report

Pulmonary hamartomas are the most common benign tumors of the lung. They are usually diagnosed incidentally while evaluating for other conditions. These tumors have been shown to be uncommon below the age of 25 years. We report a case of a 16-year-old male who presented with chronic chest pain and was histologically confirmed to have pulmonary hamartoma. The tumor was successfully resected. This is the first case of hamartoma to be reported in our country, and the atypical age at presentation together with the tumor’s position makes it more unique. In conclusion, although very rare, pulmonary hamartomas can occur in young age with the central location. Clinically, the presentation is usually non-specific and the diagnosis is mostly incidental while investigating other conditions. There is a need to increase awareness among clinicians on hamartomas to improve early treatment for this rare disease in the adolescents

Brugada-like syndrome presenting with monomorphic ventricular tachycardia and Brugada-type electrocardiogram unmasked by fever in an infant: a case report

Brugada syndrome is an autosomal-dominant arythmogenic genetic disorder associated with mutation in the SCN5A gene. We report a case of 3-month-old Tanzanian male who was admitted at Muhimbili National Hospital in Dar es Salaam, Tanzania with severe pneumonia, high fever and monomorphic ventricular tachycardia. The patient was treated with intravenous Amiodarone. In addition, oxygen, parenteral antibiotics, antipyretics and intravenous fluids were also given. About 2 hours and 20 minute later the child stabilized. An ECG obtained shortly after termination of ventricular tachycardia showed the typical J-point and coved ST elevation typical of  Brugada type I pattern. To the best of our knowledge, this is the first paediatric case with Brugada-type ECG to be reported in Sub-Saharan Africa. This case emphasizes the need to increase awareness among clinicians of clinical and genetic arythmogenic disorders. Multiple ECGs during and after febrile disorders should be performed in children who exhibit extreme tachycardia or signs of cardiac failure

Risk factors for mortality among tuberculosis patients on treatment at Bugando Medical Centre in north-western Tanzania: a retrospective cross-sectional study

 Background: Tuberculosis (TB) is still an important cause of morbidity and mortality worldwide. Though it can effectively be treated, still a significant proportion of patients die on the course of their treatment. The objective of this study was to determine the outcome and risk factors of mortality among patients diagnosed with TB in a tertiary hospital in north-western Tanzania.Methods: A retrospective cross sectional study was done among all patients diagnosed with TB between January and December 2015 at Bugando Medical Centre. Information of demographic characteristics, smear positivity, haemoglobin concentration, HIV status, CD4 counts for HIV positive patients and treatment outcomes were collected and analysed. TB treatment outcomes as dead or alive were calculated and logistic regression was done to determine the factors associated with increased risk of death of patients on anti-TB treatment.Results: In total 701 patients were diagnosed with TB during the study period. Of these, 361 (51.5%) were males with a median age of 38 (IQR 27- 47) and 421 (60.06%) were younger than 40 years. Majority of the participants 409 (58.35%) had smear positive pulmonary tuberculosis and about half of patients (51.07%) tested positive for HIV. Of the enrolled patients 610 (87.02%) were alive at the end of TB treatment while 91 (12.98%) died in the course of treatment. The odds of deaths of patients on anti-TB treatment were strongly associated with male sex, HIV co infection and severe anaemia.Conclusion: The proportion of patients who die from TB treatment at BMC is high, with an increased risk of death among HIV co-infected, older than 40 years and severely anaemic patients. Improvement of strategies for early diagnosis and prompt treatment of TB patients will potentially improve treatment outcome

Control of hypertension among diabetic patients in a referral hospital in Tanzania: a cross-sectional study

Background: Hypertension is common among diabetic patients. The co-existence of two conditions carries an excessive risk of severe complications and mortalities. Limited information exists on the determinants of poor hypertension control among these patients. We aimed at determining the prevalence and factors associated with poor hypertension control in these patients. Methods: Data of diabetic patients who were also hypertensive attending an outpatient clinic from 1 August 2015 to 31 December 2015 at Bugando Medical Centre were retrospectively analyzed. Uncontrolled hypertension was defined as a blood pressure of ≥130mmHg and/or ≥80mmHg systolic and diastolic respectively. A designed questionnaire was used to collect data of patients. Continuous variables were summarized by median and interquartile ranges (IQR) and categorical variables were summarized by frequency and percentage. Logistic regression was used to find the predictors of uncontrolled hypertension. Results: The majority of our study population were females, 161/295 (54.6%), and the median age was 57 years (IQR 50-64). The prevalence of hypertension was 206/295 (69.8%). A total of 174/206 (84.5%) patients had uncontrolled hypertension. This poor control was significantly associated with poor adherence to anti-hypertensives (OR 1.73[1.26-2.38] p=0.002), presence of any long-term complication (OR 3.19 [1.65-6.18] p=0.03) and overweight (BMI\u3e24.9 Vs. Conclusion: The prevalence of poor hypertension control among diabetic patients in Tanzania is alarming. Most of the factors associated with this situation can be modified. The clinicians should advocate individualized management, continuous health education and adherence to the available guidelines

Liver Fibrosis and Hepatitis B Coinfection among ART Naïve HIV-Infected Patients at a Tertiary Level Hospital in Northwestern Tanzania: A Cross-Sectional Study

Background. Liver fibrosis which is a common complication of chronic hepatitis B infection is rarely diagnosed in low-resource countries due to limited capacity to perform biopsy studies. Data on the utilization of noninvasive techniques which are feasible for diagnosis of liver fibrosis in these settings among HIV-infected patients is scarce. The objective of this study was to establish the magnitude of liver fibrosis by using both aspartate-aminotransferase-to-platelets ratio and fibrosis-4 scores with associated hepatitis B coinfection among antiretroviral therapy naïve HIV-infected patients. Methods. We reviewed data of 743 adult patients attending HIV clinic with available hepatitis B surface antigen test results. Baseline clinical information was recorded and aspartate-aminotransferase-to-platelet ratio and fibrosis-4 scores were calculated. The cut-off values of 1.5 and 3.25 were used for diagnosis of significant fibrosis by aspartate-aminotransferase-to-platelets ratio and fibrosis-4 scores, respectively. Results. The prevalence of liver fibrosis was 3.5% when aspartate-aminotransferase-to-platelet score was used and 4.6% with fibrosis-4 score and they were both significantly higher among patients with hepatitis B coinfection. Younger patients with HIV advanced disease and elevated liver transaminases had increased risk of having hepatitis B coinfection. Conclusion. A remarkable number of HIV-infected patients present with liver fibrosis, predominantly those with hepatitis B infection

Acute Renal Failure in a Caucasian Traveler with Severe\ud Malaria: A Case Report

Acute renal failure (ARF) secondary to severe malaria is uncommon. We report a case of a patient visiting Africa for the first time presenting with malaria and ARF. There was complete recovery after hemodialysis. Early initiation of hemodialysis proves to be useful in restoration of renal function

Prevalence and Risk Factors of Delayed Sputum Conversion among Patients Treated for Smear Positive PTB in Northwestern Rural Tanzania: A Retrospective Cohort Study

Introduction. Smear positive TB carries high morbidity and mortality. The TB treatment aims at sputum conversion by two months of antituberculous. Patients who delay sputum conversion remain potentially infectious, with risk of treatment failure, drug resistance, and mortality. Little is known about the magnitude of this problem in our setting. This study was designed to determine the prevalence and risk factors of delayed sputum conversion in northwestern rural part of Tanzania. Methods. This was a retrospective cohort study involving smear positive TB patients at Sengerema DDH in 2015. Demographic data, HIV status, and sputum results at TB diagnosis and on TB treatment were collected and analyzed using STATA 11. Results. In total, 156 patients were studied. Males were 97 (62%); the median age was 39 [30–51] years. Fifty-five (35.3%) patients were HIV coinfected and 13 (8.3%) patients had delayed sputum conversion which was strongly associated with male gender (OR=8.2, p=0.046), age >50 years (OR=6.7, p=0.003), and AFB 3+ (OR=8.1, p=0.008). Conclusions. Delayed sputum conversion is prevalent in this study. These patients can potentially fail on treatment, develop drug resistance, and continue spreading TB. Strategies to reduce the rate of delayed sputum conversion could also reduce these potential unfavorable outcomes