Browsing by Author "Esterhuizen, Tonya."

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Evaluation of the clinical management of HIV-infected patients by private sector doctors in the eThekwini Metro, KwaZulu-Natal.
(MedPharm, 2009) Naidoo, Panjasaram.; Esterhuizen, Tonya.; Jinabhai, Champaklal Chhaganlal.; Taylor, Myra.
Background: Although private sector doctors are the backbone of treatment service in many countries, caring for patients with HIV entails a whole new set of challenges and difficulties. The few studies done on the quality of care of HIV patients, in the private sector in developing countries, have highlighted some problems with management. In South Africa, two-thirds of doctors work in the private sector. Though many studies on HIV/AIDS have been undertaken, few have been done in the private sector in terms of the management of this disease. Therefore, a study was undertaken to evaluate the clinical management of HIV-infected patients by private sector doctors. Methods: A descriptive cross-sectional study was undertaken in the eThekwini Metro in KwaZulu-Natal, South Africa, with 190 private sector doctors who, in the first phase of the study, indicated that they manage HIV and AIDS patients and would be willing to participate in the second phase of the study. The HIV guidelines of the Department of Health and Human Services and the South African National Department of Health were used to compare the treatment of HIV patients by these doctors. Results: Eighty-five doctors (54.5%) always measured the CD4 count and viral load levels at diagnosis. Both CD4 counts and viral load were always used by 76 doctors (61.8%) to initiate therapy. Of the doctors, 134 (78.5%) initiated therapy at CD4 count < 200 cells/mm3. The majority of doctors prescribed triple therapy regimens using the 2 NRTI + 1 NNRTI combination. Doctors who utilised CD4 counts tended to also use viral load (VL) to assess effectiveness and change therapy (p < 0.001). At initiation of treatment, 68.5% of the doctors saw their patients monthly and 64.3% saw them every three to six months, when stable. Conclusion: The majority of private sector doctors were compliant with current guidelines for HIV management, hence maintaining an acceptable quality of clinical healthcare.
Exploring racial differences in disease stage and risk profile at presentation, and its influence on outcome in men with prostate cancer in KwaZulu-Natal.
(2009) Govender, Poovandren Soobiah.; Abdel-Goad, Ehab Helmy.; Esterhuizen, Tonya.
Introduction Prostate cancer (PCa) is the most commonly diagnosed male malignancy and the second leading cause of male cancer death in the Western world. In the United States of America (USA), African American men (AAM) have among the highest rates of PCa in the world. They develop the disease 1.5 times more frequently than European American men (EAM) of the same age .The mortality rate is approximately two to three times higher for AAM compared to EAM. There is a dearth of literature exploring the incidence and treatment outcomes of this disease based on racial profiling in a South African population. This study aims to evaluate racial disparities with a focus on patients with PCa managed in the public health care sector in the province of Kwazulu Natal (KZN). Patients and methods The study was a retrospective analysis of patients with PCa treated at Inkosi Albert Luthuli Central Hospital and Addington Hospital, which are both based in the Durban Metropolitan area in the province of KZN. Data extracted from the folders of patients with PCa who presented between March 2003 and December 2007 were collated onto a data capture form and analysed. Patient data were analysed according to the following categories: „h Patient demographics; „h Patient follow-up period; „h Disease risk profile; „h Response to treatment; „h Compliance on treatment. SPSS version 15.0 was used to analyse the data. Within each disease category, the response variables were analysed by race group using non-parametric Kruskal-Wallis tests. Multiple comparisons were made using pairwise Mann-Whitney tests and Bonferroni adjusted significance levels according to the number of multiple comparisons made. In order to control for other confounding factors such as age, serum PSA levels and compliance, Cox proportional hazards models were used. Hazard ratios and 95% confidence intervals were also reported. Results In KZN, the majority of the population is classified as blacks (82.9%). The Indian population group makes up 9.0% of the provincial population while white and coloured people make up 6.1% and 2.0% of the provincial population respectively. In this study population, Blacks made up 57.7% and whites made up 27.5%, followed by 11.4% of Indians and 3.4% of coloureds. The racial frequency distribution of the study population demonstrated that whites had a higher incidence of PCa when analysing their demographic profile in the province. Blacks had the highest median total serum prostate specific antigen (PSA) levels on presentation. When compared to that of the white study population, this was found to be statistically significant (p < 0.001). There was a significant association between stage of disease and race (p = 0.001). In the black group, a greater proportion had metastatic rather than localised or locally advanced disease, and in the white group the converse was seen, whereas in the Indian and coloured groups an almost equal proportion had localised or locally advanced disease versus metastatic disease. A crude analysis of progression free survival (PFS) data in patients with metastatic disease demonstrated that PFS was significantly (p = 0.003) longer for whites compared to blacks. Cox regression analysis did not confirm the influence of race on disease progression but this was confounded by incomplete data. Discussion The high incidence of whites in our study population relative to their racial distribution in the province may be explained by better educational and awareness levels of PCa and better access to healthcare facilities in this race group as compared to blacks. The data demonstrating a more advanced stage of disease presentation and higher median PSA levels in the black population may be reflective of an informational void on screening and awareness of PCa and/or a more aggressive disease course in this population group. The hypothesis that the black population may have a more aggressive disease course is given further credence by the crude analysis data suggesting a longer PFS for whites when compared to blacks. Conclusions This study invites further exploration of racial trends in PCa incidence, risk profile and outcomes amongst the diverse population groups of SA.
Impact of Pharmacists’ Intervention on the knowledge of HIV infected patients in a public sector hospital of KwaZulu-Natal.
(AOSIS, 2010) Govender, Saloshini.; Esterhuizen, Tonya.; Naidoo, Panjasaram.
Background: The study site started its roll-out of the human immunodeficiency virus (HIV) prevention of mother-to-child transmission in 2006. All patients were counselled by trained counsellors, before seeing a doctor. At the pharmacy the medicines were collected with no intense counselling by a pharmacist as the patients would have visited the trained counsellors first. Subsequently it was found that there were many queries regarding HIV and acquired immune deficiency syndrome (AIDS). Thus a dedicated antiretroviral pharmacy managed by a pharmacist was established to support the counsellors. Objectives: The objective of the study was to assess the impact of a pharmacist intervention on the knowledge gained by HIV and AIDS patients with regard to the disease, antiretroviral drug use (i.e. how the medication is taken, its storage and the management of side effects) as well as adherence to treatment. Method: This study was undertaken at a public sector hospital using anonymous structured questionnaires and was divided into three phases: pre-intervention, intervention and postintervention phases. After obtaining patient consent the questionnaires were administered during the first phase. A month later all patients who visited the pharmacy were counselled intensely on various aspects of HIV and antiretroviral medication. Thereafter patients who participated in Phase 1 were asked to participate in the second phase. After obtaining their consent again, the same questionnaire was administered to them. Quantitative variables were compared between pre-intervention and post-intervention stages by using paired t-tests or Wilcoxon signed ranks tests. Categorical variables were compared using McNemar’s Chi-square test (Binary) or McNemar-Bowker test for ordinal variables. Results: Overall the mean knowledge score on the disease itself had increased significantly (s.d. 6.6%), (p < 0.01), after the pharmacists’ intervention (pre-intervention was 82.1% and post-intervention was 86.3%). A significant improvement was noted in the overall knowledge score with regard to medicine taking and storage (p < 0.05) and the management of the side effects. There was a non-significant difference between the adherence in pre-intervention and in post-intervention (p = 0.077). Conclusion: Pharmacists’ intervention had a positive impact on HIV infected patients’ HIV and AIDS knowledge on both the disease and on the antiretroviral drug use and storage.
Measure of pharmacists role in the management and adherence of HIV infected patients in a public sector hospital of KwaZulu-Natal.
(2011) Govender, Saloshini.; Esterhuizen, Tonya.; Naidoo, P.
Background:- The HIV and AIDS epidemic is a major catastrophe that affects millions of people worldwide. Antiretroviral medication combinations have revolutionised HIV treatment since 1996, transforming the virus from a death sentence to a manageable condition. In order to obtain full therapeutic benefits it is vitally important that patients adhere to their prescribed medication. Being informed about the disease and medication contributes to patient adherence and management. Pharmacists are considered to be the most accessible health professional and can help HIV -infected patients deal with barriers to medication access, manage adverse effects and medication interactions, and adhere to medication regimens by appropriate counselling. The public sector is defined as that part of an economy that is controlled by the state. At the study site, which is a public sector facility, the roll out of antiretroviral medication started in 2006. At the time all patients were counselled by trained counsellors, before seeing a doctor. At the pharmacy the medication was collected with no intense counselling by a pharmacist as the patients would have visited the trained counsellors first. Subsequently it was found that there were many queries regarding HIV and AIDS. It was then decided in October 2007, that the pharmacist support the counselling done by the counsellors in that they should reinforce what was said by the counsellors, together with giving detailed information to patients on their health and medication. This study was therefore undertaken to measure pharmacists' role in the management and adherence of HIV infected patients at this institutional facility. Method: The study was undertaken at a public sector health facility using anonymous structured questionnaires and was divided into 3 phases: Pre-Intervention, Intervention and Post-Intervention phases. After obtaining patient consent the questionnaires were administered during the 1st phase. A month later all patients visiting the pharmacy were counselled intensely on various aspects of HIV and the antiretroviral medication. Thereafter patients who took part in phase 1 were asked to participate in the 2nd phase. After obtaining their consent again, the same questionnaire was administered to them. Quantitative variables were compared between pre and post intervention using paired t-tests or Wilcoxon signed ranks tests. Categorical variables were compared using McNemar's chi square test (Binary) or McNemar-Bowker test for ordinal variables. Results: A response rate of 87.5% was obtained with the majority of the patients being female. Almost 70% of the participants were in the age-range of 21-40 years old. The majority of the participants did not have post school education. Most of the participants (95.4%) did not know that HIV is a virus that causes AIDS in the pre intervention phase, but this decreased to 93.7% in the post intervention phase. The participants knowledge of people who have sexually transmitted diseases are least at risk of getting HIV, healthy food will cure HIV and smoking and drinking alcohol will weaken the HIV virus, increased significantly from the pre-intervention phase to the post intervention phase. Knowledge on the modes of transmission either increased or remained unchanged. Overall the mean knowledge score on the disease itself had increased significantly (SD 6.6%) [p<0.01] after the pharmacists' intervention (pre-intervention was 82.1 %, post-intervention was 86.3%). In both phases, over 40% of all patients stored their medication in the cupboard. The majority of the patients took their medication either with or without food at both phases of the study. After the intervention, the frequency of taking medication with a fatty meal or any time they remember was decreased to 0. A significant improvement was noted in the overall knowledge score with regards to medication taking and storage (p<0.05). Conclusion: Pharmacist intervention had a positive impact on HIV infected patients' HIV and AIDS knowledge on the disease and on the antiretroviral medication use and storage.
Medical practitioners’ reactions towards family medicine as a speciality in South Africa.
(AOSIS, 2008) Naidoo, Cyril.; Esterhuizen, Tonya.; Gathiram, Premjith.
Background: Family physicians are trained to treat a wide range of diseases, treatment being centred on the patient, family and community irrespective of age, gender, or ethnic or racial background. To deal with inequalities in health care, the South African government introduced the concept of a district health system in 1997. It was only in August 2007, however, that family medicine was legislated as a speciality. This study was undertaken prior to the enactment of this legislation. Method: A descriptive quantitative study using a self-administered questionnaire was undertaken. A convenience sampling technique was used (N = 60) to assess the reactions of medical practitioners towards the impending legislation. Results: Overall, 60% of the sample was in favour of the legislation. There were no significant differences between those working in the private and public sectors or between generalists and specialists. With regard to those not in favour of the legislation compared to those in favour of the legislation, a significantly increased number answered the following statements in the affirmative: (i) ‘I already carry out the functions of a family physician’ (p = 0.001), (ii) ‘They [specialist family physicians] will not be as qualified as specialists in other categories’ (p = 0.005), (iii) ‘It will have a negative impact on general practice’ (p < 0.001), (iv) ‘It will increase competitiveness’ (p = 0.021), (v) ‘It will not have any effect on patient care’ (p = 0.010) and (vi) ‘There is no need for such a speciality’ (p = 0.001). Conclusion: We concluded that the majority were in favour of the legislation being implemented.
A randomized controlled trial of HAART versus HAART and chemotherapy in therapy-naïve patients with HIV-associated Kaposi sarcoma in South Africa.
(Lippincott Williams & Wilkins., 2011) Mosam, Anisa.; Shaik, Fahmida.; Uldrick, Thomas S.; Esterhuizen, Tonya.; Friedland, Gerald H.; Scadden, David T.; Aboobaker, Jamila B.; Coovadia, Hoosen Mahomed.
Background: The optimal approach to HIV-associated Kaposi sarcoma (HIV-KS) in sub-Saharan Africa is unknown. With large-scale rollout of highly active antiretroviral therapy (HAART) in South Africa, we hypothesized that survival in HIV-KS would improve and administration of chemotherapy in addition to HAART would be feasible and improve KS-specific outcomes. Methods: We conducted a randomized, controlled, open-label trial with intention-to-treat analysis. Treatment-naive patients from King Edward VIII Hospital, Durban, South Africa, a public-sector tertiary referral center, with HIV-KS, but no symptomatic visceral disease or fungating lesions requiring urgent chemotherapy, were randomized to HAART alone or HAART and chemotherapy (CXT). HAART arm received stavudine, lamivudine, and nevirapine (Triomune; CXT arm received Triomune plus bleomycin, doxorubicin, and vincristine every 3 weeks. When bleomycin, doxorubicin, and vincristine were not available, oral etoposide (50–100 mg for 1–21 days of a 28-day cycle) was substituted. Primary outcome was overall KS response using AIDS Clinical Trial Group criteria 12 months after HAART initiation. Secondary comparisons included time to response, progression-free survival, overall survival, adverse events, HIV control, CD4 reconstitution, adherence, and quality of life. Results: Fifty-nine subjects were randomized to HAART and 53 to CXT; 12-month overall KS response was 39% in the HAART arm and 66% in the CXT arm (difference, 27%; 95% confidence interval, 9%–43%; P = 0.005). At 12 months, 77% were alive (no survival difference between arms; P = 0.49), 82% had HIV viral load <50 copies per milliliter without difference between the arms (P = 0.47); CD4 counts and quality-of-life measures improved in all patients. Conclusions: HAART with chemotherapy produced higher overall KS response over 12 months, whereas HAART alone provided similar improvement in survival and select measures of morbidity. In Africa, with high prevalence of HIV and human herpes virus-8 and limited resources, HAART alone provides important benefit in patients with HIV-KS.