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Related Concept Videos

Pulmonary Tuberculosis V01:28

Pulmonary Tuberculosis V

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Medical management of tuberculosis (TB) patients involves a comprehensive approach that includes diagnosis, treatment, and monitoring. The specific strategies can vary depending on the type of tuberculosis (latent or active), the patient's overall health status, and other considerations.
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the...
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Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
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Antibiotic resistance is a major public health concern that arises when bacteria evolve mechanisms to withstand the effects of antibiotic treatments. This resistance can be intrinsic, acquired through genetic mutations, or transferred between bacteria via horizontal gene transfer. The development of antibiotic resistance poses significant challenges in treating bacterial infections and necessitates ongoing research to develop new therapeutic strategies.Intrinsic resistance occurs when bacterial...
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Pulmonary Tuberculosis IV01:26

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Tuberculosis, more commonly referred to as TB, is an infectious disease stemming from Mycobacterium tuberculosis. While it primarily impacts the lungs, TB can also affect other body areas. Given its severity and global impact, timely and accurate diagnosis is crucial for controlling its spread and improving patient outcomes.
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Tuberculosis (TB) is a contagious infection primarily affecting the lung parenchyma but which can also affect other body parts. TB can be classified based on disease development, presentation, and the affected anatomical site.
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The MODS method for diagnosis of tuberculosis and multidrug resistant tuberculosis
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Multidrug and extensively drug-resistant tuberculosis.

T Maitre1, A Aubry2, V Jarlier2

  • 1Centre d'immunologie et des maladies infectieuses, Sorbonne universités, UPMC université Paris 06, Inserm, UMR 1135, 91, boulevard de l'Hôpital, 75013 Paris, France.

Medecine Et Maladies Infectieuses
|September 18, 2016
PubMed
Summary

Drug-resistant tuberculosis (TB) poses a global threat. New diagnostics and treatments, including genotypic testing and novel drugs, offer hope for improved outcomes in multidrug-resistant (MDR) and extensively drug-resistant (XDR) TB cases.

Keywords:
BedaquilineBédaquilineDelamanidExtensively drug resistanceMultidrug resistanceMultirésistanceTuberculoseTuberculosisUltrarésistance

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Area of Science:

  • Infectious Diseases
  • Microbiology
  • Pharmacology

Background:

  • Drug-resistant tuberculosis (TB) is a significant global health challenge.
  • Multidrug-resistant TB (MDR-TB) and extensively drug-resistant TB (XDR-TB) have poor prognoses due to limited treatment options.
  • The incidence of MDR-TB has been increasing since the 1990s.

Purpose of the Study:

  • To review recent innovations in the diagnosis and treatment of drug-resistant TB.
  • To highlight advancements that may alter the management landscape for MDR-TB and XDR-TB.
  • To discuss the impact of new genotypic testing and novel therapeutic agents.

Main Methods:

  • Review of current literature and emerging technologies in TB drug resistance.
  • Analysis of new diagnostic approaches, including genotypic testing for rifampicin resistance.
  • Evaluation of novel antituberculosis drugs and updated treatment regimens.

Main Results:

  • Genotypic testing offers rapid detection of drug resistance, with French guidelines recommending it for new TB cases.
  • Current MDR-TB treatment is lengthy (18-24 months) and toxic but is being updated to a 9-month regimen.
  • New drugs like bedaquiline and delamanid show promise for improving MDR-TB and XDR-TB outcomes.

Conclusions:

  • Innovations in diagnostics and therapeutics are poised to significantly improve the management of drug-resistant TB.
  • Rapid genotypic testing and shorter, more effective treatment regimens represent a paradigm shift.
  • The introduction of new drugs like bedaquiline and delamanid offers renewed hope for patients with MDR-TB and XDR-TB.