Drug-resistant tuberculosis: Difference between revisions
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* [[Mycobacterium tuberculosis]] infection that is resistant to both first-line drugs, isoniazid and rifampin |
* [[Mycobacterium tuberculosis]] infection that is resistant to both first-line drugs, isoniazid and rifampin |
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| − | == |
+ | == Classification == |
| + | * '''Multidrug resistant tuberculosis (MDR-TB))''': resistance to [[isoniazid]] and [[rifampicin]] |
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| + | * '''Extensively drug-resistant tuberculosis (XDR-TB)''': resistance to at least isoniazid and rifampicin, and to any fluoroquinolone, and to any of the three second-line injectables |
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| + | * '''Totally drug-resistant tuberculosis (TDR-TB)''': not well-defined |
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| + | == Management == |
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* 8 months of an intensive four-drug regimen that includes any four drugs to which it is susceptible, in order of preference: |
* 8 months of an intensive four-drug regimen that includes any four drugs to which it is susceptible, in order of preference: |
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** Any first-line agents to which it is still susceptible |
** Any first-line agents to which it is still susceptible |
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Revision as of 10:36, 14 November 2019
- Mycobacterium tuberculosis infection that is resistant to both first-line drugs, isoniazid and rifampin
Classification
- Multidrug resistant tuberculosis (MDR-TB)): resistance to isoniazid and rifampicin
- Extensively drug-resistant tuberculosis (XDR-TB): resistance to at least isoniazid and rifampicin, and to any fluoroquinolone, and to any of the three second-line injectables
- Totally drug-resistant tuberculosis (TDR-TB): not well-defined
Management
- 8 months of an intensive four-drug regimen that includes any four drugs to which it is susceptible, in order of preference:
- Any first-line agents to which it is still susceptible
- A fluoroquinolone (except ciprofloxacin)
- An injectable: kanamycin, or other parenteral agent
- Other second-line agents, starting with ethionamide
- Followed by 12 months of a less intensive regimen (at least three effective drugs), for a total of at least 20 months
