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Results for “Directly Observed Therapy”

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PubMed2006

The Directly Observed Therapy Short-Course (DOTS) strategy in Samara Oblast, Russian Federation.

BACKGROUND: The World Health Organisation (WHO) defines Russia as one of the 22 highest-burden countries for tuberculosis (TB). The WHO Directly Observed Treatment Short Course (DOTS) strategy employing a standardised treatment for 6 months produces the highest cure rates for drug sensitive TB. The Russian TB service traditionally employed individualised treatment. The purpose of this study was to implement a DOTS programme in the civilian and prison sectors of Samara Region of Russia, describe the clinical features and outcomes of recruited patients, determine the proportion of individuals in the cohorts who were infected with drug resistant TB, the degree to which resistance was attributed to the Beijing TB strain family and establish risk factors for drug resistance. METHODS: Prospective study. RESULTS: 2,099 patients were recruited overall. Treatment outcomes were analysed for patients recruited up to the third quarter of 2003 (n = 920). 75.3% of patients were successfully treated. Unsuccessful outcomes occurred in 7.3% of cases; 3.6% of patients died during treatment, with a significantly higher proportion of smear-positive cases dying compared to smear-negative cases. 14.0% were lost and transferred out. A high proportion of new cases (948 sequential culture-proven TB cases) had tuberculosis that was resistant to first-line drugs; (24.9% isoniazid resistant; 20.3% rifampicin resistant; 17.3% multidrug resistant tuberculosis). Molecular epidemiological analysis demonstrated that half of all isolated strains (50.7%; 375/740) belonged to the Beijing family. Drug resistance including MDR TB was strongly associated with infection with the Beijing strain (for MDR TB, 35.2% in Beijing strains versus 9.5% in non-Beijing strains, OR-5.2. Risk factors for multidrug resistant tuberculosis were: being a prisoner (OR 4.4), having a relapse of tuberculosis (OR 3.5), being infected with a Beijing family TB strain (OR 6.5) and having an unsuccessful outcome from treatment (OR 5.0). CONCLUSION: The implementation of DOTS in Samara, Russia, was feasible and successful. Drug resistant tuberculosis rates in new cases were high and challenge successful outcomes from a conventional DOTS programme alone.

Adult↗
PubMed2006

Once-daily directly observed therapy lopinavir/ritonavir plus indinavir as a protease inhibitor-only salvage therapy in heavily pretreated HIV-1-infected patients: a pilot study.

Lopinavir/ritonavir plus indinavir was administered once daily as directly observed protease inhibitor-only therapy in 12 heavily pretreated HIV-1-infected patients with multiple virological failures and advanced immunosuppression (CD4 cell count 95 x 10 cells/microl). The treatment was well tolerated. At weeks 12, 24 and 48, most patients on treatment achieved viral suppression of less than 400 copies/ml and a corresponding median CD4 T-cell count increase. Pharmacokinetic data indicated therapeutic concentrations for both protease inhibitors in most patients.

Adult↗
PubMed2005

A comparison of two methods of undertaking directly observed therapy in a rural indian setting.

SETTING: Jharkhand State, rural India. OBJECTIVES: To compare the completion rates of the two tuberculosis control programmes of the Nav Jivan Hospital, Tumbagara, and to show that even in difficult areas, a DOTS programme can be successfully implemented. DESIGN: A retrospective analysis of two DOTS programmes centred on a small rural hospital based on an analysis of case outcome. METHODS: Comparative study between two ways of delivering a DOTS programme. RESULTS: At the end of the treatment period, 359 patients in the hospital unsupervised programme and 158 in the directly observed and hospital checked programme were available for analysis. Completion/cure rates were 64% in the former group and 89.2% in the latter, compared with completion/cure rates of 17% before either programme was adopted. Sputum smear positivity rates were 79.3% and 76.5%, respectively, compared with 6% before the programmes. CONCLUSIONS: A hospital supervised and directly observed treatment (DOT) programme using independent DOT observers can exceed WHO targets for cure/ completion rates even in the poorest rural setting.

Adolescent↗
PubMed2003

[Usefulness of directly observed therapy (DOT) during hospitalization as DOTS in Japanese style].

Many patients with smear positive tuberculosis were hospitalized during the initial phase of chemotherapy but DOT was not applied to patients with tuberculosis in Japan. We tried randomized clinical study to evaluate the usefulness of DOT during admission. 135 culture positive TB patients were administered by DOT and 124 culture positive TB patients were self-administered during admission. There was no significant difference between 2 groups in the clinical background factors, treatment and the incidence of adverse reactions. Treatment completion rate was 94.1% in DOT group and 87.9% in non-DOT group. Default rate was significantly lower in DOT group (4.4%) than in non-DOT group (11.3%). We concluded that "DOT during admission" was useful to improve the outcome of chemotherapy for tuberculosis and it is preferable to apply DOT throughout treatment course for patients with tuberculosis in Japan.

Adult↗
PubMed2002

Factors at first diagnosis of tuberculosis associated with compliance with the Directly Observed Therapy (DOT) in the Limpopo Province, South Africa.

The aim of this study is to compare and contrast health beliefs, demographic and socio-economic variables, causative beliefs, knowledge, health-seeking behaviour and health provider-patient interaction of compliant and non-compliant tuberculosis patients. The sample included 219 consecutive new sputum-smear and/or culture positive pulmonary tuberculosis patients registered between October 1999 and March 2000 in three hospitals in the Limpopo Province of South Africa. The patients were 144 (65.8%) men and 75 (34.2%) women in the age range of 18 to 79 years (M age 35.9 yr., SD = 12.6). The consultation at first diagnosis was observed and tape-recorded. Thereafter an interview was conducted and a questionnaire was face-to-face administered with the patient including knowledge, causative beliefs, health seeking, and Health Belief Model items. Discriminant analysis between compliant and non-compliant groups after six months follow-up showed that the quality of the health practitioner-patient interaction and causative belief were associated with compliance behaviour whereas knowledge, onset of TB, sociodemographic variables, health care seeking, and health beliefs were not associated.

Adolescent↗
PubMed1999

Relapse and mortality among HIV-infected and uninfected patients with tuberculosis successfully treated with twice weekly directly observed therapy in rural South Africa.

OBJECTIVE: To determine post-treatment relapse and mortality rates among HIV-infected and uninfected patients with tuberculosis treated with a twice-weekly drug regimen under direct observation (DOT). SETTING: Hlabisa, South Africa. PATIENTS: A group of 403 patients with tuberculosis (53% HIV infected) cured following treatment with isoniazid (H), rifampicin (R), pyrazinamide (Z) and ethambutol (E) given in hospital (median 17 days), followed by HRZE twice weekly to 2 months and HR twice weekly to 6 months in the community under DOT. METHODS: Relapses were identified through hospital readmission and 6-monthly home visits. Relapse (culture for Mycobacterium tuberculosis) and mortality given as rates per 100 person-years observation (PYO) stratified by HIV status and history of previous tuberculosis treatment. RESULTS: Mean (SD) post-treatment follow-up was 1.2 (0.4) years (total PYO = 499); 78 patients (19%) left the area, 58 (14%) died, 248 (62%) remained well and 19 (5%) relapsed. Relapse rates in HIV-infected and uninfected patients were 3.9 [95% confidence interval (CI) 1.5-6.3] and 3.6 (95% CI 1.1-6.1) per 100 PYO (P = 0.7). Probability of relapse at 18 months was estimated as 5% in each group. Mortality was four-fold higher among HIV-infected patients (17.8 and 4.4 deaths per 100 PYO for HIV-infected and uninfected patients, respectively; P<0.0001). Probability of survival at 24 months was estimated as 59% and 81%, respectively. We observed no increase in relapse or mortality among previously treated patients compared with new patients. A positive smear at 2 months did not predict relapse or mortality. CONCLUSION: Relapse rates are acceptably low following successful DOT with a twice weekly rifampicin-containing regimen, irrespective of HIV status and previous treatment history. Mortality is substantially increased among HIV-infected patients even following successful DOT and this requires further attention.

AIDS-Related Opportunistic Infections↗
PubMed1997

Directly observed therapy. Who is responsible?

Care of the tuberculosis patients is ultimately the responsibility of the community's public health officer-an agent of the executive branch of government with the legal obligation to protect each citizen from life-threatening communicable diseases. Any physician electing to care for a tuberculosis patient becomes accountable for either directly administering each dose of medication to the patient, or assuring that treatment is provided through a competent and responsive health department.

Centers for Disease Control and Prevention, U.S.↗
PubMed1998

A model of the cost-effectiveness of directly observed therapy for treatment of tuberculosis.

A hypothetical cohort of 25,000 TB patients and their contacts were followed for a 10-year period; rates of treatment default, infectiousness following partial treatment, relapse, hospitalization, and development of drug-resistant TB were included. The average cost per case cured was $16,846 with 15% of patients starting DOT, $17,323 with 100% starting DOT, and $20,106 with none starting DOT. The incremental cost per additional case cured was $24,064 when all patients, started treatment on DOT, indicating that outpatient DOT provides a cost-effective method of improving health outcomes for TB patients and their contacts while controlling direct costs.

Adult↗
PubMed2000

High rate of non-compliance with anti-tuberculosis treatment despite a retrieval system: a call for implementation of directly observed therapy in Saudi Arabia.

SETTING: Taif Chest Hospital, Taif, Saudi Arabia. OBJECTIVES: Non-compliance with anti-tuberculosis drug therapy is recognised as a major cause of treatment failure, drug resistance and relapse. In Saudi Arabia, the problem of non-compliance is frequent and has serious implications which need urgent attention from the health-care authority. The objectives of this study were to define factors that affect compliance rate and to determine the appropriate methods to modify these factors. DESIGN: We designed and tested a retrieval system to improve patient return for follow-up and drug collection after an initial hospital admission period in a large chest hospital in the western region of the country. RESULTS: Of 628 patients, 358 (57%) did not attend the first out-patient clinic visit. The retrieval system was successful in bringing back only 83 patients, reducing the default rate by only 13.2%. Various factors that may affect compliance were analysed in the remaining 275 (43.8%) non-compliant patients. CONCLUSION: Because many of these factors are difficult to change, we strongly support implementation of the WHO-recommended directly observed treatment (DOT) strategy in Saudi Arabia and other countries facing similar problems with tuberculosis control.

Adult↗