Uchenna Okonkwo

Characteristics, management, and outcomes of patients with hepatocellular carcinoma in Africa: a multicountry observational study from the Africa Liver Cancer Consortium

BACKGROUND Hepatocellular carcinoma is a leading cause of cancer-related death in Africa, but there is still no comprehensive description of the current status of its epidemiology in Africa. We therefore initiated an African hepatocellular carcinoma consortium aiming to describe the clinical presentation, management, and outcomes of patients with hepatocellular carcinoma in Africa. METHODS We did a multicentre, multicountry, retrospective observational cohort study, inviting investigators from the African Network for Gastrointestinal and Liver Diseases to participate in the consortium to develop hepatocellular carcinoma research databases and biospecimen repositories. Participating institutions were from Cameroon, Egypt, Ethiopia, Ghana, Ivory Coast, Nigeria, Sudan, Tanzania, and Uganda. Clinical information-demographic characteristics, cause of disease, liver-related blood tests, tumour characteristics, treatments, last follow-up date, and survival status-for patients diagnosed with hepatocellular carcinoma between Aug 1, 2006, and April 1, 2016, were extracted from medical records by participating investigators. Because patients from Egypt showed differences in characteristics compared with patients from the other countries, we divided patients into two groups for analysis; Egypt versus other African countries. We undertook a multifactorial analysis using the Cox proportional hazards model to identify factors affecting survival (assessed from the time of diagnosis to last known follow-up or death). FINDINGS We obtained information for 2566 patients at 21 tertiary referral centres (two in Egypt, nine in Nigeria, four in Ghana, and one each in the Ivory Coast, Cameroon, Sudan, Ethiopia, Tanzania, and Uganda). 1251 patients were from Egypt and 1315 were from the other African countries (491 from Ghana, 363 from Nigeria, 277 from Ivory Coast, 59 from Cameroon, 51 from Sudan, 33 from Ethiopia, 21 from Tanzania, and 20 from Uganda). The median age at which hepatocellular carcinoma was diagnosed significantly later in Egypt than the other African countries (58 years [IQR 53-63] vs 46 years [36-58]; p<0·0001). Hepatitis C virus was the leading cause of hepatocellular carcinoma in Egypt (1054 [84%] of 1251 patients), and hepatitis B virus was the leading cause in the other African countries (597 [55%] of 1082 patients). Substantially fewer patients received treatment specifically for hepatocellular carcinoma in the other African countries than in Egypt (43 [3%] of 1315 vs 956 [76%] of 1251; p<0·0001). Among patients with survival information (605 [48%] of 1251 in Egypt and 583 [44%] of 1315 in other African countries), median survival was shorter in the other African countries than in Egypt (2·5 months [95% CI 2·0-3·1] vs 10·9 months [9·6-12·0]; p<0·0001). Factors independently associated with poor survival were: being from an African countries other than Egypt (hazard ratio [HR] 1·59 [95% CI 1·13-2·20]; p=0·01), hepatic encephalopathy (2·81 [1·72-4·42]; p=0·0004), diameter of the largest tumour (1·07 per cm increase [1·04-1·11]; p<0·0001), log α-fetoprotein (1·10 per unit increase [1·02-1·20]; p=0·0188), Eastern Cooperative Oncology Group performance status 3-4 (2·92 [2·13-3·93]; p<0·0001) and no treatment (1·79 [1·44-2·22]; p<0·0001). INTERPRETATION Characteristics of hepatocellular carcinoma differ between Egypt and other African countries. The proportion of patients receiving specific treatment in other African countries was low and their outcomes were extremely poor. Urgent efforts are needed to develop health policy strategies to decrease the burden of hepatocellular carcinoma in Africa. FUNDING None.

Hepatocellular carcinoma occurs at an earlier age in Africans, particularly in association with chronic Hepatitis B

Hepatocellular Carcinoma Occurs at an Earlier Age in Africans, Particularly in Association With Chronic Hepatitis B

Prevalence of hepatitis B surface antigen seropositivity among HIV-infected and non-infected individuals in Nnewi, Nigeria

Background: Co-infection of human immunodeficiency virus (HIV) and hepatitis B virus (HBV) is common as both viruses share common routes of transmission. HIV significantly affects the natural history of HBV, hence the need to determine the prevalence of co-infection. Materials and Methods: This was a retrospective study between 2005 and 2009, in which is a total of 2018 subjects who reported at our University Teaching Hospital blood bank and human immunodeficiency virus clinic were studied. Hepatitis B surface antigen (HBsAg) was tested for using a one step lateral flow rapid chromatographic immunoassay (Acumen labs and diagnostic centre, Bangalore, India) and HIV 1/2 was tested using two kits, Determine (made by Abbot, Japan for Inverness Medical, Japan). Results: A total of 2018 subjects were studied out of which 1176 were HIV positive (964 males and 212 females) and 842 (334 males and 508 females) were negative. The prevalence of HBsAg positivity in the study population was 5.9%. It was 6.3% and 5.6% in the HIV-infected and un-infected population, respectively. Although the prevalence was higher in those who are HIV infected, the difference was not statistically significant (P=0.52). Males who were HIV positive were found to be more likely to have co-infection than females (8.7% vs. 4.2%, P=0.02, OR=1.917). Conclusion: This study showed that in south-eastern Nigeria, infection with HBV is relatively common in both HIV-infected and un-infected individuals. Routine screening for HBV should be done for all HIV positive individuals.

HIV-related knowledge, attitude and practices of healthy adults in Cross River State Nigeria: a population based-survey

Introduction Human Immunodeficiency Virus (HIV) remains a global health problem disproportionately distributed across Nigeria. Cross river state (CRS), a tourist state, located in the Niger delta, has one of the highest prevalence rates. There is evidence that poor knowledge and stigmatization are obstacles to achieving universal access to HIV prevention programs. The objective of this study was to determine the Knowledge, Attitude and Practice (KAP) of HIV among adults resident in CRS, Nigeria. Methods A cross sectional descriptive survey design was employed. A total of 1,620 healthy adults were recruited. KAP towards HIV was assessed using a structured pre-tested questionnaire. Categorical variables were described as frequencies and continuous variables as median and interquartile range. Kruskal-Wallis test was used to determine relationship between variables and median KAP scores. P value < 0.05 was considered significant. All analyses were performed using Stata 12 statistical package. Results A total of 1,465 respondents completed the questionnaire correctly giving a response rate of 91%. The M: F ratio was 1:1.8. The median age was 38 years. Majority was married and had formal education. Knowledge of HIV and common routes of transmission was high (>80%). However, misconception that HIV can be transmitted through hugging, hand shake, mosquito bites and witch craft was also common (> 60%). The overall attitude and practice towards persons living with HIV infection was poor. Conclusion This study showed misconceptions in the knowledge and consequences of HIV infection which is associated with negative attitude towards persons living with HIV.

Knowledge of hepatitis B virus infection among traders

Introduction: Hepatitis B virus (HBV) is a public health problem in Nigeria, with 13% of its general population having evidence of a previous or current infection. Lack of awareness of HBV, its risk factors, and its consequences are recognized as major deterrents to adopting positive preventive behavior including immunization among HBV high-risk groups. Objective: The objective of this study is to evaluate the knowledge, attitude, and practice (KAP) of HBV infection among traders. Materials and Methods: A structured KAP questionnaire on HBV infection was administered to traders as part of the activities to mark the World Hepatitis Day in 2014. A score was created for the correct answer to 20 questions. Results: A total of 335 traders were interviewed for this study. The mean age was 33.08 ± 13.8 years and the median age was 29 years. There were 165 males and 170 females. Majority of the traders had secondary education (57.1%) and were of the Ibibio and Igbo tribes. Only 10.4% had HBV vaccination. Only 44.2% of the traders reported having any knowledge of HBV. The most common source for the knowledge was television/radio (25%) and hospitals (22%). The median (interquartile range) of the overall KAP score was low (11, 5–16). The score was least in persons aged 35 years and above, but the difference was not statistically significant (P = 0.33). Conclusion: The knowledge of HBV is low among traders in Calabar metropolis. There is need to intensify educational campaigns for the general public.

HIV-Related Knowledge, Attitude and Practices of Healthy Adults in CrossRiver State Nigeria: A Population Based-Survey

Background: Human immunodeficiency virus (HIV) remains a global health problem disproportionately distributed across Nigeria. Cross River State (CRS), a tourist state, located in the Niger delta, has one of the highest prevalence rates. There is evidence that poor knowledge and stigmatization are obstacles to achieving universal access to HIV prevention programs. Objective: The aim of this study was to determine the Knowledge, Attitude and Practice (KAP) of HIV among adults resident in CRS, Nigeria. Methods: A cross sectional descriptive survey design was employed. A total of 1,620 healthy adults were recruited. KAP towards HIV was assessed using a structured pre-tested questionnaire. Categorical variables were described as frequencies and continuous variables as median and interquartile range. Kruskal-Wallis test was used to determine relationship between variables and median KAP scores. P value 80%). However, misconception that HIV can be transmitted through hugging, hand shake, mosquito bites and witch craft was also common (>60%). The overall attitude and practice towards persons living with HIV infection was poor. Conclusion: This study showed misconceptions in the knowledge and consequences of HIV infection which is associated with negative attitude towards persons living with HIV.

Challenges in the management of chronic HBV infection in West Africa: The clinician’s perspective

Background Hepatitis B infection has become a public health issue in recent years. Approximately 350 million of the world’s population are chronically infected reaching endemic proportions in West Africa. Guidelines for treatment are continuously improving but are becoming more complex. Aim To determine the challenges hepatologists experience in the management of patients with chronic hepatitis B. Methods This was a cross-sectional descriptive study conducted among hepatologists in West Africa during a regional hepatitis conference in 2013. Results Forty-six hepatologists completed the questionnaire. When evaluating a patient for chronic hepatitis B, the preferred investigations were: LFT (100%); abdominal ultrasound (93.5%); HBeAg (93.5%); HBV DNA (78%); HBsAg measure (22%); HBV genotype (15.2%); and liver biopsy (34.8%). Most had their patients on nucleoside/nucleotide analogue but follow-up visits after 1 year were problematic. Conclusion The majority of hepatologists had good intentions regarding the evaluation of their patients, but only a small percentage of patients are properly investigated.