Using timeliness metrics for household contact tracing and TB preventive therapy in the private sector, India.

Although screening of household contacts (HHCs) of TB patients and provision of TB preventive therapy (TPT) is a key intervention to end the TB epidemic, their implementation globally is dismal. We assessed whether introducing a '7-1-7' timeliness metric was workable for implementing HHC screening among index patients with pulmonary TB diagnosed by private providers in Chennai, India, between November 2022 and March 2023.This was an explanatory mixed-methods study (quantitative-cohort and qualitative-descriptive).There were 263 index patients with 556 HHCs. In 90% of index patients, HHCs were line-listed within 7 days of anti-TB treatment initiation. Screening outcomes were ascertained in 48% of HHCs within 1 day of line-listing. Start of anti-TB treatment, TPT or a decision to receive neither was achieved in 57% of HHC within 7 days of screening. Overall, 24% of screened HHCs in the '7-1-7' period started TPT compared with 16% in a historical control (P < 0.01). Barriers to achieving '7-1-7' included HHC reluctance for evaluation or TPT, refusal of private providers to prescribe TPT and reliance on facility-based screening of HHCs instead of home visits by health workers for screening.Introduction of a timeliness metric is a workable intervention that adds structure to HHC screening and timely management..

High success and low recurrence with shorter treatment regimen for multidrug-resistant TB in Nepal.

SETTING: Nine drug-resistant TB centres, some of them supported by Damien Foundation in Nepal where >80% of multidrug-resistant/rifampicin-resistant TB (MDR/RR-TB) patients are treated. OBJECTIVE: To assess the uptake, effectiveness and safety of the 9-12-month shorter treatment regimen (STR) in MDR/RR-TB patients registered from January 2018 to December 2019. DESIGN: This was a cohort study involving secondary programme data. RESULTS: Of 631 patients, 301 (48.0%) started and continued STR. Key reasons for ineligibility to start/continue STR were baseline resistance or exposure to second-line drugs (62.0%), contact with extensively drug-resistant TB (XDR-TB) or pre-XDR-TB (7.0%) patients and unavailability of STR drugs (6.0%). Treatment success was 79.6%; unsuccessful outcomes were death (12.0%), lost to follow-up (5.3%), failure (2.7%) and not evaluated (0.7%). Unsuccessful outcomes were significantly associated with HIV positivity and patient age ⩾55 years, with adjusted relative risk of respectively 2.39 (95% CI 1.52-3.77) and 3.86 (95% CI 2.30-6.46). Post-treatment recurrence at 6 and 12 months was respectively 0.5% and 2.4%. Serious adverse events (SAEs) were seen in 15.3% patients - hepatotoxicity and ototoxicity were most common. CONCLUSION: STR had a modest uptake, high treatment success and low post-treatment recurrence. For proper detection and management of SAEs, improving pharmacovigilance might be considered. Availability of rapid diagnostic test for second-line drugs is crucial for correct patient management.

CADRE: Neuf centres de traitement de la TB pharmacorésistante, dont certains sont financés par Action Damien au Népal où >80% des patients atteints de TB multirésistante/résistante à la rifampicine (MDR/RR-TB) sont traités. OBJECTIF: Évaluer l'utilisation, l'efficacité et l'innocuité d'un schéma thérapeutique plus court (STR) de 9-12 mois chez les patients atteints de MDR/RR-TB enregistrés de janvier 2018 à décembre 2019. MÉTHODE: Étude de cohorte comprenant des données programmatiques secondaires. RÉSULTATS: Sur 631 patients, 301 (48,0%) ont démarré et poursuivi un STR. Les raisons principales d'inéligibilité à l'instauration/la poursuite d'un STR étaient une résistance initiale ou une exposition aux médicaments de deuxième intention (62,0%), un contact avec des patients atteints de TB ultrarésistante (XDR-TB) ou de pré-XDR-TB (7,0%) et la non-disponibilité des médicaments pour le STR (6,0%). Le taux de réussite thérapeutique était de 79,6%. Les résultats liés à la non-réussite thérapeutique étaient décès (12,0%), perte de vue (5,3%), échec thérapeutique (2,7%) et absence d'évaluation (0,7%). Les résultats liés à la non-réussite thérapeutique étaient significativement associés à l'infection par le VIH et aux patients âgés ⩾55 ans avec un risque relatif ajusté de 2,39 (IC 95% 1,52­3,77) et de 3,86 (IC 95% 2,30­6,46), respectivement. Le taux de récidive post-traitement à 6 et 12 mois était de 0,5% et 2,4%, respectivement. Des évènements indésirables graves (SAE) ont été observés chez 15,3% des patients, le plus souvent hépatotoxicité et ototoxicité. CONCLUSION: Le STR a été associé à une utilisation modérée, à une réussite thérapeutique élevée et à un faible taux de récidive post-traitement. Pour une détection et une prise en charge adéquates des SAE, l'amélioration de la pharmacovigilance peut être envisagée. La disponibilité de tests diagnostiques rapides pour les médicaments de deuxième intention est essentielle à une prise en charge adéquate des patients.

Low yield but high levels of multidrug resistance in urinary tract infections in a tertiary hospital, Nepal.

SETTING: There are concerns about the occurrence of multidrug resistance (MDR) in patients with urine tract infections (UTI) in Nepal. OBJECTIVE: To determine culture positivity, trends in MDR among Escherichia coli and Klebsiella pneumoniae infections and seasonal changes in culture-positive UTI specimens isolated from 2014 to 2018 at the B P Koirala Institute of Health Sciences, Dharan, Eastern Nepal. DESIGN: This was a cross-sectional study using secondary laboratory data. RESULTS: Among 116,417 urine samples tested, 19,671 (16.9%) were culture-positive, with an increasing trend in the number of samples tested and culture positivity. E. coli was the most common bacteria (54.3%), followed by K. pneumoniae (8.8%). Among E. coli and K. pneumoniae isolates, MDR was found in respectively 42.5% and 36.0%. MDR was higher in males and people aged >55 years, but showed a decreasing trend over the years. The numbers of isolates increased over the years, with a peak always observed from July to August. CONCLUSION: Low culture positivity is worrying and requires further work into improving diagnostic protocols. Decreasing trends in MDR are a welcome sign. Information on seasonal changes that peak in July-August can help laboratories better prepare for this time with adequate buffer stocks to ensure culture and antibiotic susceptibility testing.

CONTEXTE: La résistance à plusieurs médicaments (MDR) chez les patients atteints d'infections urinaires (UTI) au Népal est un sujet de préoccupations. OBJECTIF: Déterminer le taux de positivité des cultures, les tendances de MDR parmi les infections à Escherichia coli et Klebsiella pneumoniae et les variations saisonnières dans les échantillons d'UTI positifs par culture de 2014 à 2018 au BP Koirala Institute of Health Sciences, Dharan, Népal oriental. MÉTHODE: Il s'agissait d'une étude transversale réalisée en utilisant des données de laboratoire secondaires. RÉSULTATS: Parmi les 116 417 échantillons urinaires testés, 19 671 (16,9%) étaient positifs par culture, avec une tendance à la hausse du nombre d'échantillons testés et du taux de positivité par culture. E. coli était la bactérie la plus fréquente (54,3%), suivie de K. pneumoniae (8,8%). Une MDR a été observée chez respectivement 42,5% et 36,0% des isolats de E. coli et de K. pneumoniae. La MDR était plus élevée chez les hommes et les personnes âgées >55 ans, mais une tendance à la baisse a été observée au fil des ans. Le nombre d'isolats a augmenté au fil des ans, avec un pic toujours observé de juillet à août. CONCLUSION: Le faible taux de positivité par culture est préoccupant et d'autres études sont nécessaires pour améliorer les protocoles diagnostiques. Les tendances à la baisse en matière de MDR sont un signe encourageant. Les informations relatives aux variations saisonnières avec un pic en juillet-août peuvent aider les laboratoires à mieux se préparer en prévision de cette période, en renouvelant les stocks de solutions tampons afin de pouvoir réaliser les cultures et les tests de sensibilité aux médicaments.

History of household member with tuberculosis or related death in newly diagnosed patients in India.

Among new smear-positive pulmonary tuberculosis (TB) patients aged ⩾15 years from marginalised populations in India, one in four had a history of a household member with TB and one in 10 had a TB-related death in the household. This contribution of household transmission to overall TB transmission provides evidence for a potential population-level benefit of TB preventive treatment for all household contacts (without active TB). Females with TB had a significantly higher household TB exposure than males. Targeted TB preventive treatment (if implemented in a phased manner) among female household contacts may be explored after considering other factors.

Parmi les nouveaux cas de tuberculose (TB) pulmonaire confirmés par bactériologie de patients (⩾15 ans) de populations marginalisées en Inde, un quart avait eu un membre du foyer atteint de TB et un sur 10, un décès dû à la TB au sein du foyer. La contribution de la transmission domiciliaire à l'ensemble de la transmission de la TB est en faveur d'un bénéfice potentiel pour la population, du traitement préventif de la TB pour tous les membres du foyer (sans TB active). Les patients TB de sexe féminin ont une exposition domiciliaire à la TB significativement plus élevée que les hommes. Un traitement préventif de la TB ciblé (s'il est mis en œuvre par phases) sur les contacts féminins du foyer pourrait être évalué après avoir tenu compte des autres facteurs.

Targeted active screening for tuberculosis in Zimbabwe: are field digital chest X-ray ratings reliable?

SETTING: Fifteen purposively selected districts in Zimbabwe in which targeted active screening for tuberculosis (Tas4TB) was conducted among TB high-risk groups (HRGs). There were 230 patients started on TB treatment on the basis of chest X-ray (CXR) results without corresponding bacteriological confirmation. OBJECTIVES: To determine 1) the percentage of agreements in digital CXR ratings by medical officers against final ratings by radiologist(s), 2) inter-rater agreement in CXR ratings between medical officers and radiologists, and 3) number (and proportion) of patients belonging to HRGs who were over-treated during Tas4TB. DESIGN: This was a cross-sectional study using programme data. RESULTS: A total of 168 patients had their CXRs rated by two independent radiologists. Discordances among the radiologists were resolved by a third index radiologist, who provided the final rating. κ scores were 0.01 (field ratings vs. Radiologist A); 0.02 (field ratings vs. Radiologist B); 0.74 (Radiologists A vs. B). The percentage agreement for field and final radiologist rating was 70% (95%CI 64-78). Around 29% (95%CI 23-36) of the patients were potentially over-treated during Tas4TB. CONCLUSION: Over a quarter of patients with presumptive TB are potentially over-treated during Tas4TB. Over-treatment is highest among those with previous contact with TB patients. Trainings of radiographers and medical officers may improve CXR ratings.

Tuberculosis-diabetes screening: how well are we doing? A mixed-methods study from North India.

SETTING: Public health care facilities in Sonipat District, Haryana State, India. OBJECTIVES: To assess 1) the proportion of tuberculosis (TB) patients screened for diabetes mellitus (DM) and vice versa, 2) factors associated with screening, and 3) the enablers, barriers and solutions related to screening. DESIGN: A mixed-methods study with quantitative (cohort study involving record reviews of patients registered between November 2016 and April 2017) and qualitative (interviews of patients, health care providers [HCPs] and key district-level staff) components. RESULTS: Screening for TB among DM patients was not implemented, despite documents indicating that it had been. Of 562 TB patients, only 137 (24%) were screened for DM. TB patients registered at tertiary and secondary health centres were more likely to be screened than primary health centres. Low patient awareness, poor knowledge of guidelines among HCPs, lack of staff and inadequate training were barriers to screening. Enablers were the positive attitude of HCPs and programme staff. The key solutions suggested were to improve awareness of HCPs and patients regarding the need for screening, training of HCPs and wider availability of DM testing facilities. CONCLUSION: The implementation of bidirectional screening was poor. Adequate staffing, regular training, continuous laboratory supplies for DM diagnosis and widespread publicity should be ensured.

IPT in people living with HIV in Myanmar: a five-fold decrease in incidence of TB disease and all-cause mortality.

SETTING: Myanmar, a country with a high human immunodeficiency virus-tuberculosis (HIV-TB) burden, where the tuberculin skin test or interferon-gamma release assays are not routinely available for the diagnosis of latent tuberculous infection. OBJECTIVE: To assess the effect of isoniazid (INH) preventive therapy (IPT) on the risk of TB disease and mortality among people living with HIV (PLHIV). DESIGN: A retrospective cohort study of routinely collected data on PLHIV enrolled into care between 2009 and 2014. RESULTS: Of 7177 patients (median age 36 years, interquartile range 31-42; 53% male) included in the study, 1278 (18%) patients received IPT. Among patients receiving IPT, 855 (67%) completed 6 or 9 months of INH. Patients who completed IPT had a significantly lower risk of incident TB than those who never received IPT (adjusted hazard ratio [aHR] 0.21, 95%CI 0.12-0.34) after controlling for potential confounders. PLHIV who received IPT had a significantly lower risk of death than those who never received IPT (PLHIV who completed IPT, aHR 0.25, 95%CI 0.16-0.37; those who received but did not complete IPT, aHR 0.55, 95%CI 0.37-0.82). CONCLUSION: Among PLHIV in Myanmar, completing a course of IPT significantly reduced the risk of TB disease, and receiving IPT significantly reduced the risk of death.

Challenges and opportunities to prevent tuberculosis in people living with HIV in low-income countries.

People living with the human immunodeficiency virus (HIV) (PLHIV) are at high risk for tuberculosis (TB), and TB is a major cause of death in PLHIV. Preventing TB in PLHIV is therefore a key priority. Early initiation of antiretroviral therapy (ART) in asymptomatic PLHIV has a potent TB preventive effect, with even more benefits in those with advanced immunodeficiency. Applying the most recent World Health Organization recommendations that all PLHIV initiate ART regardless of clinical stage or CD4 cell count could provide a considerable TB preventive benefit at the population level in high HIV prevalence settings. Preventive therapy can treat tuberculous infection and prevent new infections during the course of treatment. It is now established that isoniazid preventive therapy (IPT) combined with ART among PLHIV significantly reduces the risk of TB and mortality compared with ART alone, and therefore has huge potential benefits for millions of sufferers. However, despite the evidence, this intervention is not implemented in most low-income countries with high burdens of HIV-associated TB. HIV and TB programme commitment, integration of services, appropriate screening procedures for excluding active TB, reliable drug supplies, patient-centred support to ensure adherence and well-organised follow-up and monitoring that includes drug safety are needed for successful implementation of IPT, and these features would also be needed for future shorter preventive regimens. A holistic approach to TB prevention in PLHIV should also include other important preventive measures, such as the detection and treatment of active TB, particularly among contacts of PLHIV, and control measures for tuberculous infection in health facilities, the homes of index patients and congregate settings.

Beyond 'cure' and 'treatment success': quality of life of patients with multidrug-resistant tuberculosis.

SETTING: Two drug-resistant tuberculosis (DR-TB) sites (MSF Clinic, Jupiter Hospital) in Mumbai, India. OBJECTIVE: To assess health-related quality of life (HRQoL) and associated factors among DR-TB patients and explore their perspectives about HRQoL. DESIGN: We used a mixed-methods design: a quantitative cross-sectional questionnaire (the World Health Organization's Quality of Life Brief Questionnaire [WHOQoL-BREF]); and qualitative in-depth interviews for purposively selected patients. Assessments were conducted between April and November 2016. RESULTS: Ninety-five patients completed WHOQoL-BREF; 12 were interviewed. The psychological and physical health domains were the most affected (mean scores 56.2 ± standard deviation [SD] 18.3, and 56.5 ± SD 15.1, respectively; maximum 100). The social relations and environmental domains mean scores were respectively 68.6 (SD ±21.1) and 60.3 (SD ±15.9). Loss of jobs due to TB adversely affected the social relations and environmental domains. Qualitative analysis showed that support was the most important theme affecting quality of life. Other themes were physical factors (e.g., treatment adverse events), psychological factors (e.g., depression), social functioning (e.g., fear of stigmatisation) and environmental factors (e.g., health systems). CONCLUSION: HRQoL was lower among study participants, but not as low as previously reported among TB patients. Support was the main factor that positively affected HRQoL, although both disease and treatment were physically and socially challenging.

How can integrated care and research assist in achieving the SDG targets for diabetes, tuberculosis and HIV/AIDS?

Integrating the management and care of communicable diseases, such as tuberculosis (TB) and human immunodeficiency virus/acquired immune-deficiency syndrome (HIV/AIDS), and non-communicable diseases, particularly diabetes mellitus (DM), may help to achieve the ambitious health-related targets of the Sustainable Development Goals (SDG 3.3 and 3.4) by 2030. There are five important reasons to integrate. First, we need to integrate to prevent disease. In sub-Saharan Africa, in particular, HIV infection is the main driver of the TB epidemic, and antiretroviral therapy combined with isoniazid preventive therapy (IPT) can reduce TB case notification rates. In Asia, DM is another important driver of the TB epidemic, and preventing or controlling DM can reduce the risk of TB. Second, we need to integrate to diagnose cases. Between a third to a half of those living with HIV, TB or DM do not know they have the disease, and bi-directional screening, whereby TB patients are screened for HIV and DM or people living with HIV and DM are screened for TB, can help to identify these 'missing cases'. Third, we need to integrate to better treat and manage patients who have a combination of two or more of these diseases, so that treatment success and retention on treatment can be optimised. Fourth, we should integrate to ensure better infection control practices for both TB and HIV infection in health facilities and congregate settings, such as prisons. Finally, we should integrate and learn how to monitor, record and report, particularly in relation to the cascade of events implicit in the HIV/AIDS and TB 90-90-90 targets.

Tuberculosis-tobacco integration in the South-East Asia Region: policy analysis and implementation framework.

SETTING: Despite overwhelming evidence for the association between tuberculosis (TB) and tobacco use, it remains neglected in the context of policy, planning and practice. There is limited evidence about the extent of integration of TB and tobacco control programmes in South-East Asia Region (SEAR) countries. OBJECTIVE: To assess the level of TB-tobacco integration in 11 SEAR countries. DESIGN: Cross-sectional study using a structured questionnaire addressed to TB and tobacco focal points at the World Health Organization Country Offices. RESULTS: Apart from India, no country in the SEAR has a formal coordination mechanism for national TB and tobacco control programmes or a system of referral for tobacco users among TB patients for treatment of tobacco dependence. There is no joint planning, joint training or joint supervision and monitoring in any country. CONCLUSION: There is poor integration between TB and tobacco control programmes in most SEAR countries. This assessment fed into the development of a regional framework for TB-tobacco integration, which outlines three strategies: 1) integrated patient-centred care and prevention; 2) joint TB tobacco actions covering policy development, planning, training and monitoring; and 3) research and innovation. Every country in the region should adopt the TB-tobacco integration framework to improve programme performance.

Diabetes and pre-diabetes among household contacts of tuberculosis patients in India: is it time to screen them all?

SETTING: Pre-diabetes mellitus (pre-DM) and DM increase the risk of developing tuberculosis (TB). Screening contacts of TB patients for pre-DM/DM and linking them to care may mitigate the risk of developing TB and improve DM management. OBJECTIVE: To measure the prevalence of pre-DM/DM and associated factors among the adult household contacts (HHCs) of pulmonary TB patients. METHODS: Between August 2014 and May 2017, adult HHCs of newly diagnosed adult PTB patients in Pune and Chennai, India, had single blood samples tested for glycosylated haemoglobin (HbA1c) at enrolment. DM was defined as previously diagnosed, self-reported DM or HbA1c 6.5%, and pre-DM as HbA1c between 5.7% and 6.4%. Latent tuberculous infection (LTBI) was defined as a positive tuberculin skin test (5 mm induration) or QuantiFERON® Gold In-Tube (0.35 international units/ml). RESULTS: Of 652 adult HHCs, 175 (27%) had pre-DM and 64 (10%) had DM. Forty (64%) HHCs were newly diagnosed with DM and 48 (75%) had poor glycaemic control (HbA1c 7.0%). Sixty-eight (22%) pre-DM cases were aged 18-34 years. Age 35 years, body mass index 25 kg/m2, chronic disease and current tobacco smoking were significantly associated with DM among HHCs. CONCLUSIONS: Adult HHCs of TB patients in India have a high prevalence of undiagnosed DM, pre-DM and LTBI, putting them at high risk for developing TB. Routine DM screening should be considered among all adult HHCs of TB.

Building the capacity of public health programmes to become data rich, information rich and action rich.

Good quality, timely data are the cornerstone of health systems, but in many countries these data are not used for evidence-informed decision making and/or for improving public health. The SORT IT (Structured Operational Research and Training Initiative) model has, over 8 years, trained health workers in low- and middle-income countries to use data to answer important public health questions by taking research projects through to completion and publication in national or international journals. The D2P (data to policy) training initiative is relatively new, and it teaches health workers how to apply 'decision analysis' and develop policy briefs for policy makers: this includes description of a problem and the available evidence, quantitative comparisons of policy options that take into account predicted health and economic impacts, and political and feasibility assessments. Policies adopted from evidence-based information generated through the SORT IT and D2P approaches can be evaluated to assess their impact, and the cycle repeated to identify and resolve new public health problems. Ministries of Health could benefit from this twin-training approach to make themselves 'data rich, information rich and action rich', and thereby use routinely collected data in a synergistic manner to improve public health policy making and health care delivery.

Des données de bonne qualité et disponibles rapidement sont la pierre angulaire des systèmes de santé, mais dans de nombreux pays ces données ne sont pas utilisées pour les prises de décision fondées sur des preuves et/ou pour améliorer la santé publique. Le modèle SORT IT (Structured Operational Research and Training Initiative) a, en 8 années, formé le personnel de santé des pays à revenu faible et moyen à l'utilisation des données pour répondre à d'importantes questions de santé publique en amenant les projets de recherche jusqu'à leur achèvement et à la publication dans des revues nationales ou internationales. L'initiative de formation D2P (données pour la politique) est relativement nouvelle et forme le personnel de santé à la manière d'appliquer l'analyse de décision et à l'élaboration d'énoncés de politiques à l'intention des décideurs politiques : ceci inclut la description d'un problème et les preuves disponibles, une comparaison quantitative des options de politique qui tiennent compte des impacts prédits en matière de santé et d'économie, et une évaluation de politique et de faisabilité. Les politiques adoptées à partir d'informations basées sur des preuves générées grâce aux approches SORT IT et de D2P peuvent être évaluées en termes d'impact, et le cycle répété afin d'identifier et de résoudre de nouveaux problèmes de santé publique. Les ministres de la santé pourraient bénéficier de cette approche de formation double afin qu'ils soient « riches de données, riches d'information et riches d'action ¼, et donc utiliser les données recueillies en routine d'une manière synergique afin d'améliorer les choix en matière de politique de santé publique et de prestation des soins de santé.

La buena calidad de los datos y su puntualidad constituyen los pilares de los sistemas de salud, pero en muchos países esta información no se utiliza con el fin de orientar la toma de decisiones basadas en la evidencia o mejorar la salud pública. El modelo de Investigación Operativa Estructurada e Iniciativa para la Formación (SORT IT) se ha aplicado durante más de 8 años en la capacitación de los profesionales de salud de países de ingresos bajos y medianos, en materia de aplicación de los datos para resolver importantes preguntas de salud pública, al acompañar los proyectos de investigación hasta su finalización y publicación en revistas de ámbito nacional o internacional. La iniciativa de formación D2P (de los datos a las políticas) es relativamente nueva e instruye a los trabajadores de salud sobre la forma de aplicar el 'análisis decisional' y formular documentos normativos destinados a las instancias decisorias; la iniciativa comprende la descripción de un problema y la evidencia disponible, una comparación cuantitativa de las opciones normativas que tiene en cuenta las repercusiones de salud y económicas previstas y una evaluación política y de factibilidad. Es posible evaluar las políticas adoptadas a partir de información basada en la evidencia científica generada por conducto de las estrategias SORT IT y D2P con el propósito de analizar su repercusión y se puede repetir el ciclo a fin de detectar y resolver nuevos problemas de salud pública. Los ministerios de salud pueden aprovechar este enfoque doble de capacitación con el objeto de alcanzar una situación de 'riqueza de datos, de información y de acción' y aplicar sinérgicamente los datos recogidos de manera sistemática con miras a optimizar la toma de decisiones de salud pública y la prestación de los servicios de salud.

Delay and attrition before treatment initiation among MDR-TB patients in five districts of Gujarat, India.

Setting: Gujarat, a state in west India. Background: Although treatment initiation has been improving among patients diagnosed with multidrug-resistant tuberculosis (MDR-TB) in programme settings, it has still not reached 100%. Objectives: To determine pre-treatment attrition (not initiated on treatment within 6 months of diagnosis), delay in treatment initiation (>7 days from diagnosis) and associated factors among MDR-TB patients diagnosed in 2014 in five selected districts served by two genotypic drug susceptibility testing (DST) facilities and a drug-resistant TB centre in Gujarat. Design: This was a retrospective cohort study involving record review. Results: Among 257 MDR-TB patients, pre-treatment attrition was seen in 20 (8%, 95%CI 5-12). Patients with 'follow-up sputum-positive' as their DST criterion and sputum smear microscopy status 'unknown' at the time of referral for DST were less likely to be initiated on treatment. The median delay to treatment initiation was 8 days (interquartile range 6-13). Patients referred for DST from medical colleges were more likely to face delays in treatment initiation. Conclusion: The Gujarat TB programme is performing well in initiating laboratory-confirmed MDR-TB patients on treatment. However, there is further scope for reducing delay.

Contexte : Dans le Gujarat, un état de l'ouest de l'Inde, même si la mise en route du traitement a été améliorée pour les patients ayant eu un diagnostic de tuberculose multirésistante (TB-MDR) dans le contexte des programmes, elle n'a pas encore atteint 100%.Objectif : Déterminer l'attrition avant traitement (c'est-à-dire un traitement pas mis en route dans les 6 mois suivant le diagnostic), le retard à la mise en route (>7 jours du diagnostic) et les facteurs associés parmi des patients TB-MDR diagnostiqués en 2014 dans cinq districts sélectionnés servis par deux structures de test génotypique de pharmacosensibilité (DST) et un centre de TB résistante au Gujarat.Schéma : Ceci a été une étude rétrospective de cohorte basée sur une revue de dossiers.Résultats : Sur 257 patients TB-MDR, l'attrition avant traitement a été constatée chez 20 patients (8% ; IC95% 5­12). Les patients ayant un « crachat de suivi positif ¼ comme critère de DST et un statut de microscopie de frottis de crachats « inconnu ¼ lors de la référence pour DST ont été moins susceptibles d'être mis sous traitement. Le délai médian de mise en route du traitement a été de 8 jours (intervalle interquartile 6­13). Les patients référés pour DST de centres hospitalières universitaires sont plus susceptibles de rencontrer des retards à la mise en route du traitement.Conclusion : Le programme TB du Gujarat est performant en mettant en route le traitement de TB-MDR confirmé par le laboratoire. Il reste cependant une marge d'amélioration en matière de réduction des délais.

Marco de referencia: Guyarat es un estado del occidente de la India donde se han logrado avances en la iniciación del tratamiento de los pacientes con diagnóstico de tuberculosis multirresistente (TB-MDR) en el marco programático, pero aún no se ha alcanzado el 100%.Objetivos: Determinar la tasa de abandono anterior al tratamiento (no haber iniciado tratamiento en un lapso de 6 meses después del diagnóstico), el retraso en la iniciación del tratamiento (>7 días después del diagnóstico) y los factores asociados en los pacientes diagnosticados con TB-MDR de cinco distritos escogidos de Guyarat atendidos por dos centros de pruebas genotípicas de sensibilidad a los medicamentos (DST) y un centro de tuberculosis resistente en el 2014.Método: Fue este un estudio de cohortes retrospectivo con examen de las historias clínicas.Resultados: De los 257 pacientes con diagnóstico de TB-MDR, se observó un abandono anterior al tratamiento en 20 casos (8%; IC95% 5­12). La probabilidad de iniciar el tratamiento era menor en los pacientes cuyo criterio para practicar las DST era 'seguimiento a la positividad del esputo' y su situación de la baciloscopia del esputo era desconocida en el momento de la remisión para las pruebas. La mediana del retraso en la iniciación del tratamiento fue 8 días (amplitud intercuartil 6­13). Los pacientes remitidos de las facultades de medicina para realizar las DST presentaban con mayor frecuencia retrasos en la iniciación del tratamiento.Conclusión: El desempeño del programa contra la TB de Guyarat es adecuado con respecto a la iniciación del tratamiento de los pacientes con TB-MDR confirmada por el laboratorio. Sin embargo, aún son necesarios progresos en esta esfera con el fin de acortar los retrasos.

Has TB CARE I sputum transport improved access to culture services for retreatment tuberculosis patients in Zimbabwe?

Setting: Retreatment tuberculosis (TB) patients in Zimbabwe are investigated using microscopy, Xpert® MTB/RIF and culture + drug susceptibility testing (CDST). TB CARE I, a sputum transport service using motorcycles, was introduced to transport specimens between peripheral health facilities and laboratories, including National Reference Laboratories (NRLs). Objectives: To compare access to CDST and treatment outcomes among retreatment TB patients in facilities with and those without TB CARE I support. Design: This was a retrospective cohort study. Results: There were 187 patients from TB CARE I-supported facilities and 116 from non-TB CARE I facilities, with no difference in demographic characteristics. Altogether, specimens from 22 (12%) retreatment TB patients had successful CDST from TB CARE I facilities, which was not statistically significantly different from non-supported facilities (n = 14, 12%; P = 0.94). The median number of days from sputum collection to receipt at the NRL was lower in TB CARE I facilities than in non-supported facilities (median 6, interquartile range [IQR] 4-8 vs. median 8, IQR 6-13.5; P = 0.000). Favourable treatment outcomes were documented in 65% of patients under TB CARE I, significantly more than among patients in non-supported facilities (47%, P < 0.01). Conclusion: The process of sputum specimen collection for CDST was not different between TB CARE I and non-TB CARE I-supported health facilities, apart from a slightly shorter time. Ways to improve the current system are discussed.

Contexte : Les patients tuberculeux en retraitement au Zimbabwe bénéficient d'un bilan par microscopie, Xpert® MTB/RIF et culture + test de pharmacosensibilité (CDST). TB CARE I, un service de transport des crachats recourant à des motos, a été introduit afin de transporter les échantillons entre les structures de santé périphériques et les laboratoires, notamment les Laboratoires Nationaux de Référence (NRL).Objectif : Comparer les structures avec et sans soutien de TB CARE I, l'accès au CDST et les résultats du traitement parmi les patients en retraitement.Schéma : Etude rétrospective de cohorteRésultats : Il y a eu 187 patients de structures soutenues par TB CARE I et 116 patients de structures non soutenues par TB CARE I, sans différence en termes de caractéristiques démographiques. Au total, les échantillons de 22 patients (12%) TB en retraitement ont eu un CDST réussi dans les structures TB CARE I, ce qui n'a pas été très différent des patients des structures non soutenues (n = 14, 12% ; P = 0,94). Le nombre médian de jours depuis le recueil de crachats jusqu'à la réception au NRL a été plus faible dans les structures TB CARE I que dans les structures non soutenues (médiane = 6, intervalle interquartile [IQR] 4­8 contre médiane = 8, IQR 6­13,5 ; P = 0,0001). Des résultats favorables du traitement ont été documentés chez 65% des patients sous TB CARE I, ce qui a été significativement plus élevé que chez les patients dans les structures non soutenues (47% ; P < 0,01).Conclusion : Le processus de recueil d'échantillons de crachats pour le CDST n'a pas mis en évidence de différence entre les structures de santé soutenues I et non soutenues par TB CARE I, en dehors d'un délai légèrement plus court. On discute des manières d'améliorer le système actuel.

Marco de referencia: La investigación de los pacientes en retratamiento por tuberculosis (TB) en Zimbabwe comporta el examen microscópico, la prueba Xpert® MTB/RIF y el cultivo con pruebas de sensibilidad a los medicamentos (CDST). Se introdujo el servicio TB CARE I, que consiste en la utilización de motocicletas para el transporte de las muestras de esputo de los establecimientos periféricos de salud a los laboratorios, incluidos los Laboratorios Nacionales de Referencia.Objetivos: Comparar el acceso al CDST y el desenlace terapéutico de los pacientes en retratamiento atendidos en los establecimientos que cuentan con el servicio TB CARE I y los centros sin este apoyo.Método: Fue este un estudio de cohortes retrospectivo.Resultados: Participaron en el estudio 187 pacientes de centros que contaban con el servicio TB CARE I y 116 pacientes de centros sin este apoyo, cuyas características demográficas eran equivalentes. En conjunto, las muestras de 22 pacientes en retratamiento (12%) de establecimientos con respaldo del servicio TB CARE I obtuvieron resultados adecuados del CDST a los medicamentos; esta proporción fue equivalente a la de muestras de los centros sin el servicio de transporte (n = 14, 12%; P = 0,94). La mediana del número de días entre la recogida del esputo y la recepción en el Laboratorio Nacional de Referencia fue inferior en los establecimientos con el servicio TB CARE I que en los centros desprovistos del mismo (mediana 6 días, amplitud intercuartílica [IQR] 4­8 contra 8 días, IQR 6­13,5; P = 0,0001). Se documentaron desenlaces terapéuticos favorables en el 65% de los pacientes cubiertos por el servicio TB CARE I; esta proporción es significativamente más alta que en los pacientes de los establecimientos que no contaban con este apoyo (47%; P < 0,01).Conclusión: No se observaron diferencias en el proceso de recogida de muestras de esputo para CDST los medicamentos en los establecimientos que contaban o no con el respaldo del programa TB CARE I, con la excepción de un lapso de transporte un poco más corto en los primeros. En el artículo se discuten diversas formas de mejorar el sistema vigente.

Rifampicin-resistant tuberculosis patients in Myanmar in 2016: how many are lost on the path to treatment?

SETTING: Regional tuberculosis (TB) centres of the Yangon and Mandalay Regions of Myanmar, which account for 65% of all notified rifampicin-resistant tuberculosis (RR-TB) cases countrywide. OBJECTIVE: To determine 1) initial loss to follow-up (LTFU), 2) treatment delay, and 3) factors associated with initial LTFU and treatment delay among RR-TB patients residing in the Yangon and Mandalay regions diagnosed using Xpert® during January-August 2016. DESIGN: This was a retrospective cohort study. Each diagnosed patient was tracked in the drug-resistant TB treatment registers of the Yangon and Mandalay regional treatment centres for January-December 2016 using patient name, age, sex, township and date of diagnosis. If the diagnosed patient was not found in the treatment register by 31 December 2016, he/she was considered 'initial LTFU'. RESULTS: Of the 1037 RR-TB patients diagnosed, 310 (30%) experienced initial LTFU, which was significantly higher among patients aged 55 years and among those diagnosed in the Mandalay Region. A treatment delay of >1 month was observed in 440 (70%) patients (median delay 41 days). Delay was uniformly high across patient subgroups, and was not associated with any factor. CONCLUSION: Initial LTFU and treatment delays among RR-TB patients were high. Future studies using qualitative research methods are needed to ascertain the reasons for this observation.