CHILDHOOD CHILDHOOD
TUBERCULOSISTUBERCULOSIS
Arun GeorgeArun George
TuberculosisTuberculosis
Tuberculosis is a chronic infectious disease caused by Tuberculosis is a chronic infectious disease caused by
Mycobacterium tuberculosisMycobacterium tuberculosis characterized by vague characterized by vague
constitutional symptoms and a protracted course of constitutional symptoms and a protracted course of
illness with remissions and exacerbations.illness with remissions and exacerbations.
Tuberculosis is the reaction of tissues of the human Tuberculosis is the reaction of tissues of the human
host to the presence and multiplication of host to the presence and multiplication of Mycobacterium Mycobacterium
tuberculosistuberculosis..
The clinical states arising from TB infection are the The clinical states arising from TB infection are the
outcome between the capacity of the host to contain outcome between the capacity of the host to contain
and eliminate the organism versus the capacity of the and eliminate the organism versus the capacity of the
organism to multiply and proliferate. organism to multiply and proliferate.
MagnitudeMagnitude
1/31/3
rdrd
of the world’s population is or has been of the world’s population is or has been
infected with tubercle bacilli.infected with tubercle bacilli.
India accounts for one third of the word TB India accounts for one third of the word TB
burdenburden
Prevalence of the disease in IndiaPrevalence of the disease in India::
15-25 per 1000 population 15-25 per 1000 population
15 million infected, 25% sputum positive15 million infected, 25% sputum positive
3 to 4 million infected are children3 to 4 million infected are children
EpidemiologyEpidemiology
Agent : Mycobacterium tuberculosis, M. bovisAgent : Mycobacterium tuberculosis, M. bovis
Reservoir : Infected patientReservoir : Infected patient
Mode of infection : Droplet infection, dust, ingestion, Mode of infection : Droplet infection, dust, ingestion,
skin, mucous membrane, skinskin, mucous membrane, skin
Host FactorsHost Factors
Age : all ages affected, congenital is rareAge : all ages affected, congenital is rare
Sex : Girls > boys at PubertySex : Girls > boys at Puberty
Malnutrition : more succeptibleMalnutrition : more succeptible
Intercurrent infections : eg measles, whooping coughIntercurrent infections : eg measles, whooping cough
Environment : overcrowding, inadequate ventillation, Environment : overcrowding, inadequate ventillation,
damp, insanitary and unhygenic conditionsdamp, insanitary and unhygenic conditions
Portal of entry for tuberculosisPortal of entry for tuberculosis
Inhalation of Tubercle bacilli in >95% (M.TB)Inhalation of Tubercle bacilli in >95% (M.TB)
Ingestion of milk containing Bovine Tubercle Ingestion of milk containing Bovine Tubercle
bacilli (M. bovis)bacilli (M. bovis)
Contamination of superficial skin or mucous Contamination of superficial skin or mucous
membrane lesion with tubercle bacillimembrane lesion with tubercle bacilli
Congenital infection when mother has Congenital infection when mother has
lymphohematogenous spread during pregnancy lymphohematogenous spread during pregnancy
OROR tuberculous endometritis tuberculous endometritis
Primary tuberculous infectionPrimary tuberculous infection
Primary Focus (Ghon’s focus)Primary Focus (Ghon’s focus)
at the site of first implantationat the site of first implantation
usually single and Subpleuralusually single and Subpleural
in most, - heals and disappears, orin most, - heals and disappears, or
- fibroses or calcifies.- fibroses or calcifies.
Primary Complex:Primary Complex:
primary focus + Hilar lymphnodes + draining primary focus + Hilar lymphnodes + draining
lymphaticslymphatics
complications arise more commonly from regional complications arise more commonly from regional
adenitis than from the primary focusadenitis than from the primary focus
Primary infectionPrimary infection
Children vs. AdultsChildren vs. Adults
In adults, In adults,
- regional lymphadenitis less marked- regional lymphadenitis less marked
- bronchial erosion less frequent- bronchial erosion less frequent
- less risk of dissemination- less risk of dissemination
Thus, adult primary infection tends to be Thus, adult primary infection tends to be
more local and pulmonary.more local and pulmonary.
Progressive primary tuberculosisProgressive primary tuberculosis
Progression of TB depends on the age of the Progression of TB depends on the age of the
child, number of tubercle bacilli, and host child, number of tubercle bacilli, and host
resistance.resistance.
Apparently healed focus or nodes may contain Apparently healed focus or nodes may contain
viable organisms for many years.viable organisms for many years.
During 1During 1
stst
4-8 weeks, organisms are disseminated 4-8 weeks, organisms are disseminated
in the blood stream.in the blood stream.
Progressive pulmonary diseaseProgressive pulmonary disease
Progressive primary infectionProgressive primary infection: Progression of : Progression of
recently acquired pulmonary primary infection recently acquired pulmonary primary infection
Endogenous exacerbationEndogenous exacerbation: reactivity of : reactivity of
organisms and breakdown of primary lesions organisms and breakdown of primary lesions
acquired > 5 years previouslyacquired > 5 years previously
Exogenous exacerbationExogenous exacerbation: Re-infection by newly : Re-infection by newly
acquired bacilli in persons with healed primary acquired bacilli in persons with healed primary
lesionslesions
Symptoms of childhood Symptoms of childhood
tuberculosistuberculosis
1.1.Failure to thrive } &Failure to thrive } &
2.2.Intermittent fever } are the commonest symptoms Intermittent fever } are the commonest symptoms
3.3.Pleural effusionPleural effusion
4.4.AscitesAscites
5.5.Abdominal mass (Painless)Abdominal mass (Painless)
6.6.Limp / ArthritisLimp / Arthritis
7.7.Painless lymphadenopathyPainless lymphadenopathy
8.8.Persistent skin ulcerPersistent skin ulcer
9.9.Sterile pyuriaSterile pyuria
10.10.MeningitisMeningitis
Pulmonary lesions in tuberculosisPulmonary lesions in tuberculosis
- the primary complex- the primary complex
Complications of the primary Complications of the primary
focusfocus
1. Rupture of focus into pleural space causing
serous effusion
2. Rupture of focus into bronchus causing
cavitation
3. Enlarged focus, sometimes laminated or “coin”
shadow
Complications of regional nodesComplications of regional nodes
1. Incomplete (ball-valve) bronchial obstruction,
emphysema of middle & lower lobes
2. Complete bronchial obstruction, collapse of
right lower lobe
3. Erosion of node into bronchus & segmental
consolidation
4. Rupture of node into pericardium: tuberculous
pericardial effusion
Sequelae of bronchial complicationsSequelae of bronchial complications
1. Stricture of bronchus at site of erosion
2. Cylindrical bronchiectasis in area of old collapse
3. Wedge shadow: contracture & fibrosis of
segmental lesion
4. Linear scar of fibrosis following segmental
lesion
SymptomsSymptoms
Primary complex – mild fever, anorexia, weight Primary complex – mild fever, anorexia, weight
loss, decreased activity, coughloss, decreased activity, cough
Progressive primary complex – high grade fever, Progressive primary complex – high grade fever,
cough. Expectoration and hemoptysis – usually cough. Expectoration and hemoptysis – usually
associated with cavity and ulceration of associated with cavity and ulceration of
bronchus. bronchus.
Abnormal chest signs – decreased air entry, Abnormal chest signs – decreased air entry,
dullness, crepsdullness, creps
Endobronchial tb – wheeze!! Endobronchial tb – wheeze!!
Fever, troublesome cough, dyspnea, wheezing Fever, troublesome cough, dyspnea, wheezing
and cyanosisand cyanosis
Pleural effusion – follows a rupture of a Pleural effusion – follows a rupture of a
subpleural focus. Also by hematogenous spread subpleural focus. Also by hematogenous spread
from primary focus. Occurs coz of from primary focus. Occurs coz of
hypersensitivity to tuberculoproteins. hypersensitivity to tuberculoproteins.
Fever, cough, dyspnea, pleuritic chest pain. Fever, cough, dyspnea, pleuritic chest pain.
Miliary tuberculosisMiliary tuberculosis
most common within 1most common within 1
stst
3 to 6 months after 3 to 6 months after
infectioninfection
due to heavy hematogenous spread of tubercle due to heavy hematogenous spread of tubercle
bacillibacilli
Onset: Insidious, with Onset: Insidious, with
Fever and weight lossFever and weight loss
Palpable liver and/or spleenPalpable liver and/or spleen
Tachypnoea with normal chest findingsTachypnoea with normal chest findings
Miliary tuberculosisMiliary tuberculosis
Hematogenous dissemination leads to progressive Hematogenous dissemination leads to progressive
development of small lesions throughout the body, development of small lesions throughout the body,
with tubercles in the with tubercles in the
lung, spleen, liver, lung, spleen, liver,
bone marrow, heart, pancreasbone marrow, heart, pancreas
brain, choroid, skinbrain, choroid, skin
Radiologic diagnosisRadiologic diagnosis::
““Snow stormSnow storm”” appearance appearance
(Multiple small lung nodules 1mm size and above in (Multiple small lung nodules 1mm size and above in
both lung fields).both lung fields).
Miliary TBMiliary TB
Cutaneous TuberculosisCutaneous Tuberculosis
1.1.Associated with primary complexAssociated with primary complex
(Direct inoculation into Traumatized Area)(Direct inoculation into Traumatized Area)
- Painless nodule, leading to non healing ulcer with regional - Painless nodule, leading to non healing ulcer with regional
lymphadenitislymphadenitis
- Scrofuloderma over ruptured caseous lymph node- Scrofuloderma over ruptured caseous lymph node
2.2.Associated with Hematogenous disseminationAssociated with Hematogenous dissemination
- Papulonecrotic tuberculids- Papulonecrotic tuberculids
papules with soft centers on trunk, thighs and facepapules with soft centers on trunk, thighs and face
- Tuberculosis verrucosa cutis- Tuberculosis verrucosa cutis
Large tuberculids on arms and legsLarge tuberculids on arms and legs
3.3.Associated with hypersensitivity to tuberculinAssociated with hypersensitivity to tuberculin
- Erythema nodosum- Erythema nodosum
painful indurated nodules on shins, elbows, forearms thatpainful indurated nodules on shins, elbows, forearms that
subside in 2-3 weekssubside in 2-3 weeks
TB verrucosa cutis TB verrucosa cutis
Erythema nodosumErythema nodosum
Tuberculosis of superficial Tuberculosis of superficial
lymph nodes (scrofula)lymph nodes (scrofula)
Tonsillar / submandibular Tonsillar / submandibular
(Spread from paratracheal nodes)(Spread from paratracheal nodes)
Supraclavicular Supraclavicular
(From primary lesion in upper lobe)(From primary lesion in upper lobe)
Axillary / epitrochlear Axillary / epitrochlear
(From skin lesion on hand)(From skin lesion on hand)
Inguinal Inguinal
(From ulcer on sole of foot)(From ulcer on sole of foot)
Ocular TuberculosisOcular Tuberculosis
Primary tuberculous conjunctivitisPrimary tuberculous conjunctivitis (after trauma) (after trauma)
Yellowish – gray nodules on palpebral conjunctiva Yellowish – gray nodules on palpebral conjunctiva
with preauricular adenopathywith preauricular adenopathy
Phlyctenular conjunctivitisPhlyctenular conjunctivitis (Hypersensitivity) (Hypersensitivity)
Nodules on limbus recurring in crops for weeksNodules on limbus recurring in crops for weeks
Tubercles of choroidTubercles of choroid (with miliary TB) (with miliary TB)
Choroidal tuberclesChoroidal tubercles
Tuberculous otitis mediaTuberculous otitis media
Primary with Preauricular adenitisPrimary with Preauricular adenitis
Metastatic spread with primary elsewhereMetastatic spread with primary elsewhere
SymptomsSymptoms: Painless otorrhea, may be blood-: Painless otorrhea, may be blood-
stainedstained
ComplicationsComplications: Secondary infection: Secondary infection
DeafnessDeafness
TB meningitisTB meningitis
GI and Abdominal TBGI and Abdominal TB
Hematogenous spread from lungs or swallowing Hematogenous spread from lungs or swallowing
of infected sputum. of infected sputum.
Painless ulcer in gingivolabial sulcus with Painless ulcer in gingivolabial sulcus with
submental or submandibular adenopathysubmental or submandibular adenopathy
Ulcer on tonsilUlcer on tonsil
Esophageal diverticulum secondary to rupture of Esophageal diverticulum secondary to rupture of
mediastinal nodes into lumenmediastinal nodes into lumen
Tuberculous toxemiaTuberculous toxemia
Present with colicky abdominal pain, vomiting and Present with colicky abdominal pain, vomiting and
constipation. constipation.
Abdomen feels doughy. Abdomen feels doughy.
Rolled up omentum and enlarged lymph nodes may Rolled up omentum and enlarged lymph nodes may
appear as irregular nodular masses with ascitesappear as irregular nodular masses with ascites
Tuberculous enteritisTuberculous enteritis
Ulcers, mesenteric adenitis, peritonitisUlcers, mesenteric adenitis, peritonitis
Adhesions, subacute intestinal obstruction,Adhesions, subacute intestinal obstruction,
HepatosplenomegalyHepatosplenomegaly
Renal tuberculosisRenal tuberculosis
Tubercles in glomeruli lead to shedding of Tubercles in glomeruli lead to shedding of
tubercle bacilli into tubules tubercle bacilli into tubules
Caseous mass / Cavity between cortex and Caseous mass / Cavity between cortex and
pyramidspyramids
TB of bladder (Tuberculous cystitis)TB of bladder (Tuberculous cystitis)
SymptomsSymptoms: dysuria, hematuria, : dysuria, hematuria,
Skeletal tuberculosisSkeletal tuberculosis
Bones involved in order of frequencyBones involved in order of frequency: :
Vertebrae > knee > hip > elbowVertebrae > knee > hip > elbow
Upper extremities and non-weight-bearing bonesUpper extremities and non-weight-bearing bones
(skull, clavicle) rarely involved(skull, clavicle) rarely involved
Tuberculous spondylitisTuberculous spondylitis most commonly most commonly
Thoracic / Lumbar / Both (Decreasing frequency)Thoracic / Lumbar / Both (Decreasing frequency)
X-ray findingsX-ray findings: :
Narrowing of disc space, Collapse of vertebral Narrowing of disc space, Collapse of vertebral
bodybody
Extensive destruction with kyphosis (Pott disease)Extensive destruction with kyphosis (Pott disease)
ComplicationsComplications:Para vertebral abscess (Pott abscess):Para vertebral abscess (Pott abscess)
Psoas Abscess. Paraplegia, Quadriplegia (cervical)Psoas Abscess. Paraplegia, Quadriplegia (cervical)
Genital tuberculosisGenital tuberculosis
Uncommon before pubertyUncommon before puberty
Usually due to lympho-hematogenous spreadUsually due to lympho-hematogenous spread
Occasionally by direct extension from Occasionally by direct extension from
adjacent lesion of bone, gut, or urinary tractadjacent lesion of bone, gut, or urinary tract
Genital tuberculosisGenital tuberculosis
SalpingitisSalpingitis
EndometritisEndometritis
OophoritisOophoritis
Cervicitis Cervicitis
Infertility is commonest sequel Infertility is commonest sequel
in malesin males::
Primary tuberculosis of penis after circumcision Primary tuberculosis of penis after circumcision
with inguinal adenopathywith inguinal adenopathy
Epididymitis / Epididymo – orchitis in early Epididymitis / Epididymo – orchitis in early
childhoodchildhood
Tuberculous meningitisTuberculous meningitis
TB meningitis seen in 1/300 Primary infectionsTB meningitis seen in 1/300 Primary infections
Pathophysiology:Pathophysiology:
Rupture of a subcortical caseous focus (Rich’s) into the Rupture of a subcortical caseous focus (Rich’s) into the
subarachnoid space.subarachnoid space.
Inflammatory exudates form about base of brain and along Inflammatory exudates form about base of brain and along
cerebral vessels as they pass over hemispheres.cerebral vessels as they pass over hemispheres.
Raised intracranial pressure due to increased secretion of Raised intracranial pressure due to increased secretion of
CSF CSF
Adhesions along base and roof of 4Adhesions along base and roof of 4
thth
ventricles lead to ventricles lead to
obstruction to CSF flow and hydrocephalus,obstruction to CSF flow and hydrocephalus,
involvement of cranial nerves III VI VII and optic chiasma.involvement of cranial nerves III VI VII and optic chiasma.
Cerebral endarteritis narrows lumen, reduces blood flow, Cerebral endarteritis narrows lumen, reduces blood flow,
leads to cerebral thrombosis and infarction. leads to cerebral thrombosis and infarction.
Stages of TB meningitisStages of TB meningitis
Stage I Irritability, anorexia, personality changeStage I Irritability, anorexia, personality change
Occasional vomiting, feverOccasional vomiting, fever
Poor school performancePoor school performance
Stage II Focal neurological signs, cranial nerve palsies,Stage II Focal neurological signs, cranial nerve palsies,
Seizures, hemiplegia, squintSeizures, hemiplegia, squint
Stage III Loss of consciousness, Coma, Papilloedema Stage III Loss of consciousness, Coma, Papilloedema
Decerebrate rigidityDecerebrate rigidity
Complications of TB meningitisComplications of TB meningitis
HydrocephalusHydrocephalus
Subdural effusionSubdural effusion
Late: Hemiplegia / ParaplegiaLate: Hemiplegia / Paraplegia
Intellectual impairmentIntellectual impairment
BlindnessBlindness
DeafnessDeafness
Intracranial calcifications leading to Intracranial calcifications leading to
hypothalamic and pituitary dysfunctionhypothalamic and pituitary dysfunction
- Growth failure- Growth failure
- Diabetes insipidus- Diabetes insipidus
- Failure of development of secondary sexual - Failure of development of secondary sexual
characteristicscharacteristics
Diagnosis of TB meningitisDiagnosis of TB meningitis
Signs of meningeal irritationSigns of meningeal irritation
X-ray chestX-ray chest
CT scan – basal exudates, inflammatory granulomas etcCT scan – basal exudates, inflammatory granulomas etc
Tuberculin testingTuberculin testing
Retinoscopy for choroidal tuberclesRetinoscopy for choroidal tubercles
Lumbar punctureLumbar puncture
Elevated CSF pressure(30 – 40cm h2o)Elevated CSF pressure(30 – 40cm h2o)
Cobweb Coagulum/ pellicle on standing Cobweb Coagulum/ pellicle on standing
100 – 500 WBCs / cu.mm100 – 500 WBCs / cu.mm
>40 mg% protein>40 mg% protein
Low / Normal sugarLow / Normal sugar
AFB smear & cultureAFB smear & culture
Prognosis in TB meningitisPrognosis in TB meningitis
100% mortality in 3-4 weeks without treatment100% mortality in 3-4 weeks without treatment
100% survival with treatment started in Stage I100% survival with treatment started in Stage I
75% survival with treatment started in Stage II75% survival with treatment started in Stage II
Stage III – variable survival, all will have sequelaeStage III – variable survival, all will have sequelae
Direct tests for tuberculosisDirect tests for tuberculosis
Ziehl-Neelsen staining for AFB in clinical specimens Ziehl-Neelsen staining for AFB in clinical specimens
(sputum, gastric juice, biopsy)(sputum, gastric juice, biopsy)
AFB culture on Lowenstein-Jensen solid medium (4 AFB culture on Lowenstein-Jensen solid medium (4
weeks)weeks)
PCR amplification of targeted mycobacterial DNA PCR amplification of targeted mycobacterial DNA
sequences sequences
DNA probes: fluorescence DNA probes: fluorescence in situin situ hybridization assays hybridization assays
PCR – rapid resultsPCR – rapid results
Serodiagnosis – ELISASerodiagnosis – ELISA
QuantiFERON- TB test (QFT) – for diagnosing QuantiFERON- TB test (QFT) – for diagnosing
latent TB. Based on IFN-gamma released from latent TB. Based on IFN-gamma released from
sensitized lymphocytes.sensitized lymphocytes.
ELISPOTELISPOT
Positive MantouxPositive Mantoux
Mantoux TestMantoux Test
MC used test for establishing diagnosis of TB in MC used test for establishing diagnosis of TB in
childrenchildren
Delayed type hypersensitivity reactionDelayed type hypersensitivity reaction
0.1 ml of 5 TU PPD is injected intradermally 0.1 ml of 5 TU PPD is injected intradermally
into the volar aspect of the forearm (or 2 TU of into the volar aspect of the forearm (or 2 TU of
PPD RT 23)PPD RT 23)
A weal of 5 mm should be raisedA weal of 5 mm should be raised
Reaction is read after 48 – 72 hrsReaction is read after 48 – 72 hrs
Look for induration and erythemaLook for induration and erythema
Observation and InferenceObservation and Inference
48-72 hours later 48-72 hours later diameter of induration is diameter of induration is
measured transversely to the long axis of the measured transversely to the long axis of the
forearm. forearm.
Induration > 10mm is suggestive of natural Induration > 10mm is suggestive of natural
infection. infection.
5-10 mm 5-10 mm borderline; considered positive in borderline; considered positive in
immunocompromised hostimmunocompromised host
<5mm <5mm Negative mantoux test does not rule Negative mantoux test does not rule
out TBout TB
False NegativesFalse Negatives
Test done in incubation period of TBTest done in incubation period of TB
For several weeks following measlesFor several weeks following measles
During Corticosteroid therapyDuring Corticosteroid therapy
Overwhelming TB infection (milliary, meningits)Overwhelming TB infection (milliary, meningits)
Severe MalnutritionSevere Malnutrition
If given Sub Cutaneous instead of Intra dermalIf given Sub Cutaneous instead of Intra dermal
Inactive TuberculinInactive Tuberculin
False positiveFalse positive
Atypical mycobacteriaAtypical mycobacteria
BCG vaccineBCG vaccine
Infection at site of testInfection at site of test
Guidelines for presumptive diagnosis Guidelines for presumptive diagnosis
of tuberculosisof tuberculosis
Pediatr Infect Dis J 1993;12: 499-504)Pediatr Infect Dis J 1993;12: 499-504)
A combination of at least 3 of the following:A combination of at least 3 of the following:
Symptoms/signs s/o TB: Symptoms/signs s/o TB:
(fever > 1 mo., cough, weight loss) (fever > 1 mo., cough, weight loss)
History of close contact with TBHistory of close contact with TB
Positive tuberculin skin test (Mantoux > 10 mm)Positive tuberculin skin test (Mantoux > 10 mm)
sputum / gastric juice AFB sputum / gastric juice AFB ++veve
lymph node / tissue biopsy positivitylymph node / tissue biopsy positivity
Radiologic features suggestive of TBRadiologic features suggestive of TB
Response to Anti TB Therapy Response to Anti TB Therapy
History of contact = any child who lives in a History of contact = any child who lives in a
household with an adult taking ATT or has household with an adult taking ATT or has
taken therapy in the past 2 yearstaken therapy in the past 2 years
RadiologyRadiology
In extra pulmonary tb, presence of lesions on chest In extra pulmonary tb, presence of lesions on chest
radiograph supports diagnosis. radiograph supports diagnosis.
Enlarged lymph nodes in hila, right paratracheal regionEnlarged lymph nodes in hila, right paratracheal region
Consolidation in progressive primary disease – Consolidation in progressive primary disease –
heterogenous, poorly marginated with predilection to heterogenous, poorly marginated with predilection to
apical or posterior segments of upper lobe or superior apical or posterior segments of upper lobe or superior
segments of lower lobe. segments of lower lobe.
BronchiectasisBronchiectasis
Pleural effusionPleural effusion
Miliary tb – millet sized lesionsMiliary tb – millet sized lesions
Treatment for TBTreatment for TB
11
stst
line anti-tuberculous drugs line anti-tuberculous drugs
Isoniazid (INAH) 5 mg/kg/day H Isoniazid (INAH) 5 mg/kg/day H
Rifampicin 10 mg/kg/day RRifampicin 10 mg/kg/day R
Pyrazinamide 25 mg/kg/day Z Pyrazinamide 25 mg/kg/day Z
Ethambutol 20 mg/kg/day E Ethambutol 20 mg/kg/day E
Streptomycin 20mg/kg/day SStreptomycin 20mg/kg/day S
22
ndnd
Line drugs Line drugs
Drug resistant cases or when first line drugs cant be usedDrug resistant cases or when first line drugs cant be used
Eg. Cycloserine, ethionamaide, PAS, kanamycinEg. Cycloserine, ethionamaide, PAS, kanamycin
Other drugsOther drugs
Strictly for drug resistant casesStrictly for drug resistant cases
Eg. Quinolones, rifamycin, amikacin, imipenem, Eg. Quinolones, rifamycin, amikacin, imipenem,
ampicillinampicillin
Phases of TreatmentPhases of Treatment
Intensive PhaseIntensive Phase
Eliminate bacterial loadEliminate bacterial load
Prevent emergence of drug resistant strainsPrevent emergence of drug resistant strains
Atleast 3 Bactericidal Drugs usedAtleast 3 Bactericidal Drugs used
Continuation PhaseContinuation Phase
Continue and complete therapyContinue and complete therapy
Atleast 2 Bactericidal drugs usedAtleast 2 Bactericidal drugs used
SteroidsSteroids
Anti inflammatory effect – millary, peritonitis, pericarditisAnti inflammatory effect – millary, peritonitis, pericarditis
TB meningitis TB meningitis
The 5 components of DOTS
Political & administrative commitment
Diagnosis by good quality sputum microscopy
Adequate supply of good quality drugs
Directly observed treatment
Systematic monitoring & Accountability
Drug ResistanceDrug Resistance
Natural or PrimaryNatural or Primary
AcquiredAcquired
InitialInitial
Multidrug resistance (MDR)Multidrug resistance (MDR)
Treatment of resistant Treatment of resistant
tuberculosistuberculosis
INH-resistant TB: 18 RZEINH-resistant TB: 18 RZE
Rifampicin-resistant TB: 18 – 24 HZERifampicin-resistant TB: 18 – 24 HZE
Multidrug-resistant TB:Multidrug-resistant TB:
Treat for 24 mo. after culture conversion Treat for 24 mo. after culture conversion
with regimen containing 3 second-line with regimen containing 3 second-line
drugs, including IM aminoglycoside/ SM, drugs, including IM aminoglycoside/ SM,
one fluoroquinolone and one oral 2one fluoroquinolone and one oral 2
ndnd
line line
drug.drug.
ReferencesReferences
Nelson’s textbook of paediatricsNelson’s textbook of paediatrics
OP Ghai – Essential PaediatricsOP Ghai – Essential Paediatrics
Preventive and Social Medicine – Park & ParkPreventive and Social Medicine – Park & Park
The Internet…The Internet…