The Lancet olume 395, ISSUE 10232, P1259-1267, April 18, 2020. Buruli ulcer is a neglected tropical disease caused by Mycobacterium ulcerans infection that damages the skin and subcutis. It is most prevalent in western and central Africa and Australia. Standard antimicrobial treatment with oral rifa...mpicin 10 mg/kg plus intramuscular streptomycin 15 mg/kg once daily for 8 weeks (RS8) is highly effective, but streptomycin injections are painful and potentially harmful. We aimed to compare the efficacy and tolerability of fully oral rifampicin 10 mg/kg plus clarithromycin 15 mg/kg extended release once daily for 8 weeks (RC8) with that of RS8 for treatment of early Buruli ulcer lesions.
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Cochrane Database of Systematic Reviews 2021, Issue 2. Art. No.: CD009593. DOI: 10.1002/14651858.CD009593.pub5.
This Rapid Communication aims to inform national TB programmes and other stakeholders about the key implications of the latest evidence on the use of specific molecular assays as initial diagnostic tests of pulmonary and extrapulmonary TB and RR-TB, in adults and children.
The first important change is a new priority ranking of the available medicines for MDR-TB treatment, based on a careful balance between expected benefits and harms. Treatment success for MDR-TB is currently low in many countries. This could be increased by improving access to the highest-ranked med...icines for all patients with MDR-TB.
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La publicación describe el funcionamiento del método rápido, confiable, sencillo y económico al laboratorio que permita examinar un gran número de muestras a fin de seleccionar a aquellos pacientes que pudieran estar potencialmente infectados con Mycobacterium tuberculosis multirresistente a lo...s medicamentos. El método será aplicado en los laboratorios donde haya sido validado. La versión“ directa” del método Griess debe ser usada por los laboratorios de la DISA como un método rápido de tamizaje para la detección de resistencia a isoniacida y rifampicina. Dicho método se aplicará a muestras respiratorias de pacientes primarios.
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Автоматизированная технология амплификации нуклеиновых кислот в режиме реального времени для быстрого и одновременного выявления туберкулеза и устойчивости к р...ифампицину: система Xpert MTB/RIF.
Программное заявление.
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Phillips and colleagues have shown that rifampicin combined with clarithromycin is non-inferior to RS8, and is safer. This much anticipated trial provides us with a high degree of confidence that an 8-week course of oral rifampicin and clarithromycin should now be the cornerstone of the treatment of... Buruli ulcer everywhere. However, this finding does not mean that
Buruli ulcer is cured at 8 weeks.
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In case of resistance to rifampicin, fluoroquinolones become the preferred category of second-line drugs. Unfortunately, quinolone-resistant strains of Mycobacterium leprae have also been reported in several countries, probably due to the extensive use of quinolones for treating several types of inf...ections. Clofazimine resistance is still rare but this antimicrobial cannot be given alone
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This document provides guidance on how to implement contact screening and chemoprophylaxis with single-dose rifampicin. The contents are logically ordered: counselling and obtaining consent, identification and listing of index case, listing of contacts, tracing of contacts, screening of contacts, ad...ministration of prophylactic drugs. Managerial aspects to undertake contact screeninig and chemoprophylaxis are also elaborated, including planning , training , supervision and drug management.
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These updates include shorter novel 6-month all-oral regimens for the treatment of multidrug- and rifampicin-resistant TB (MDR/RR-TB), with or without additional resistance to fluoroquinolones (pre-XDR-TB) as well as an alternative 9-month all-oral regimen for the treatment of MDR/RR-TB.
This Ra...pid Communication is released in advance of updated WHO consolidated guidelines expected later in 2022, to inform national TB programmes and other stakeholders of key changes in the treatment of DR-TB and to allow for rapid transition and planning at the country level.
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The new WHO recommendations for the treatment of isoniazid-resistant, rifampicin-susceptible TB are based upon a review of evidence from patients treated with such regimens by a Guideline Development Group in conformity with WHO requirements for evidence-based policies.
The objective of the study was the validation and implementation of GeneXpert MTB/RIF for routine use in the rapid detection of tuberculosis and sensitivity to rifampicin in clinical samples; for this, 1592 respiratory samples were collected and analyzed in the laboratory of Instituto Nacional de In...vestigación en Salud Pública Guayaquil. The analysis of the results of GeneXpert in comparison with smear microscopy showed an initial sensitivity of 99.8% and specificity of 93.2%; The analysis of discrepancies using the results of the culture as a reference method showed that the GeneXpert results considered false negatives turned out to be true negatives, the same happens with the false positives that correspond to true positives. Recalculated the sensitivity and specificity of the GeneXpert was 99.8% and 100% correspondingly. The comparison with the drugs susceptibility test showed a sensitivity of 91.4% and a specificity of 95.5% for the GeneXpert MTB/RIF system. It is concluded that the implementation of the GeneXpert system allows solution to certain problems associated with the application of conventional diagnostic methodologies, decreasing the waiting times, and increasing the sensitivity and specificity in the diagnosis of drug-resistant tuberculosis, thus generating a valuable opportunity for early diagnosis.
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La publicación describe el método aplicado en los laboratorios que han realizado la validación, como un método rápido de tamizaje para la detección de resistencia a isoniacida y rifampicina en muestras de esputo de pacientes con tuberculosis pulmonar que aún no hayan iniciado tratamiento anti...tuberculosis, pacientes nunca tratados, recaídas o abandonos recuperados con frotis positivo o negativo.
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Of the more than 10 million people estimated to have fallen ill with tuberculosis (TB) in 2022, just over 400 000 people developed TB resistant to rifampicin (RIF), and 1.3 million people developed TB resistant isoniazid (INH). Drug resistance must be detected rapidly and accurately to initiate appr...opriate and effective treatment.
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In 2019, an estimated 10 million individuals fell ill with tuberculosis (TB) and 3 million of them were not reported to have beendiagnosed and notified. The gap is proportionately even wider for drug-resistant TB. Of the estimated 465 000 patients with rifampicin-resistant and multi-drug resistant T...B (RR/MDR-TB), only 206 030 (44%) were diagnosed and notified.For the first time, the World Health Organization (WHO) has provided global estimates of the incidence of isoniazid resistance: in 2019, there were 1.4 million incident cases of isoniazid-resistant TB, of which 1.1 million were susceptible to rifampicin. Most of these people were not diagnosed with drug-resistant TB and did not receive appropriate treatment.
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