2. Overview of Leprosy
Leprosy is a disease caused by Mycobacterium leprae, a bacterium
which primarily affects the skin and peripheral nerves.
Mode of transmission is considered to be air-borne, through
droplets discharged from the respiratory tract of untreated
infectious cases
The disease causes stigma and those affected can be victims of
discrimination and often displacement.
Physical and neurological damage may be irreversible even if cured.
3. Epidemiology
In 2011, the Ministry of Health Republic of
Indonesia reported 20.023 new leprosy cases or
8.3 in 100,000 population
9. Paucibacillary (PB): the number of M. leprae in the
body is small (less than 1 million) and a skin smear test
is negative. The patient presents five or fewer skin
lesions. Most cases of leprosy are PB.
Multibacillary (MB): M. leprae can multiple in the
body almost without any check and is thus present in
high numbers. The bacillus has likely spread to almost
all areas of skin and peripheral nerves. A skin smear
test is positive and the patient presents more than five
skin lesions.
10. Bacterial Index
Acid Fast Bacilli Bacterial Index
> 1000 > immersion field 6 +
100 – 1000/field 5 +
10 – 100/field 4 +
1 – 10 3 +
1 – 10/10 field 2 +
1 – 10/100 1 +
0/100 0
14. Diagnostic
Hypopigmented or reddish patches with definite
loss of sensation
Thickened peripheral nerves
Acid-fast bacilli on skin smears or biopsy material
15. Pharmacology
Dapsone (Bactericidal) by preventing of formation
of folic acid, inhibiting bacterial growth.
Rifampicine Inhibits DNA-dependent bacterial RNA
polymerase.
Clofazimine (Lamprene) Inhibits mycobacterial
growth, binds preferentially to mycobacterial DNA.
16. After 6 months MDT Tx
However, damaged nerves and tissues cannot regrow. Thus, if left
untreated for too long, disfigurment from leprosy can be permanent,
unless it can be repaired with reconstructive surgery.
17.
18. PB Single Lesion
Rifampicin 600 mg
Ofloxacin 400mg
Minocycline 100 mg
Single Dose
19. PB >5 Lesions
6 – 9 months
Day 1 Rifampicin 600mg and Dapson 100 mg
Day 2 – 28 Dapson 100 mg