Management of tb_regimens
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Transcript of Management of tb_regimens
TREATMENT REGIMEN
Patient wise boxes with multiblister combipack
Phases of Treatment
Intensive Phase
• Meant to kill as many bacilli rapidly as possible
Continuation Phase
• Aimed to sterilize smaller number of dormant/persisting bacilli to prevent relapse.
Category I(New)
•New smear positives•New sputum smear negative•New extra-pulmonary •New others
Red Box• IP= 2 (HRZE)3
•CP=4 (HR)3
Blue Box• IP=2 (HRZES)3+1(HRZE)3 • CP= 5 (HRE)3
Category II(Previously
treated)
•Smear positive relapse•Smear positive failure•Smear positive treatment after default•Others
Follow Up• Two sputum smears are examined each time during follow up.
1. As early morning sample2. Spot sample
Category SS –ve at the end of IP
SS +ve at the end of IP
I 2,4,6th month 2,3,5,7th month
II 3,5,8th month 3,4,6,9th month
At the end of IPBoth SS -ve
Patient put to CPSS exam repeated
CP continuedSS exam repeated
Either of them +veIP extended to 1 month
SS +ve / -vePatient put to CP
-ve SSCP continuedSS exam
repeated+ve SSTreatment failureCategory II
2n
d
month
3r
d
month
4t
h
month
5t
h
month
6t
h
month
7t
h
month
Category I :
At the end of IPBoth SS -vePt. put
to CP SS exam repeatedContd CP
SS exam repeated
Either of them +veIP extended to 1 monthSS +ve /
-vePt. put to CPSS exam repeatedSS exam
repeated
3r
d
month
4t
h
month
5t
h
month
6t
h
month
8t
h
month
9t
h
month
Category II :
Drug ResistancePrimary/ Pre-treatment resistance:
• The resistance shown by the bacteria in a patient, who has not received the drug in question before.
• Due to infection by drug resistant bacilli / during multiplication by transference of ‘episome’ from one resistant bacilli to another.
Secondary / Acquired resistance:
• The resistance shown by the bacteria which were sensitive to the drug at the start of the treatment but became resistant to the particular drug during the course of treatment.
Multi Drug Resistant (MDR) TuberculosisAccording to WHO, MDR strain is one that is at
least resistant to Rifampicin and Isoniazid, with or without resistance to other anti-TB drugs.
CATAGORY IV (DOTS-PLUS)Treatment of MDR-TB
Indication:1. History of prior treatment where smear
positive cases found even after repeated treatment courses, category II failure.
2. Close exposure to possible source cases, confirmed to have drug resistant TB.
Diagnosis must be confirmed by culture and Drug Sensitivity Testing (DST)
RNTCP Regimen
IP= 6(9) Km Ofx Eto Cs Z E + CP= 18 Ofx Eto Cs E
Extensively Drug Resistance Tuberculosis
• Extensively drug resistance (XDR) is defined as the strain which is resistant to:
1. at least Rifampicin and INH (i.e. MDR)2. A Fluoroquinolone, and3. one or two following second line injectable
drugs: Amikacin, Capreomycin, Kanamycin
Standardized regimen for XDR-TB:Intensive phase: • Capreomycin• PAS• Moxifloxacin• Linezolid • Clofazimine• Amoxicillin/ ClavulinateContinuation phase:• PAS• Moxifloxacin• Isoniazid• Clofazimine• Linezolid• Amoxicillin/ Clavulinate
6-12 months
18 monthsV
Category V
Teratogenic Drugs: Avoided
during Pregnancy
Alternative drugs, i.e. Ethambutol must be used instead of Streptomycin.
First line Second lineStreptomycin Ethionamide
Protionamide
Fluoroquinolones
Non DOTS Regimen
Indication: When there is adverse reaction to drugs used in short course chemotherapy. When patient cannot comply with the DOTS regimen.
• New smear positive• Pulmonary seriously ill patients• Extra pulmonary seriously ill
patients
Non-DOTS regime 1 (ND1):
2 (S H E) + 10 (H E)
• New smear negative• Pulmonary not seriously ill patients• Extra pulmonary not seriously ill
patients
Non-DOTS regime 2 (ND2):12 (H E)
• New smear negative• Pulmonary not seriously ill patients• Extra pulmonary not seriously ill
patients
Non-DOTS regime 2 (ND2):12 (H E)