Top Banner
Childhood Tuberculosis พญ.ปริชญา งามเชิดตระกูล Extern ชนากานต เอกพิทักษดํารง
20

presentation TB final - thaipedlung.org · Microsoft PowerPoint - presentation TB final Author: mook Created Date: 8/7/2008 4:42:31 AM ...

Jul 03, 2020

Download

Documents

dariahiddleston
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Page 1: presentation TB final - thaipedlung.org · Microsoft PowerPoint - presentation TB final Author: mook Created Date: 8/7/2008 4:42:31 AM ...

Childhood Tuberculosis

พญ.ปริชญา งามเชิดตระกูลExtern ชนากานต เอกพิทักษดํารง

Page 2: presentation TB final - thaipedlung.org · Microsoft PowerPoint - presentation TB final Author: mook Created Date: 8/7/2008 4:42:31 AM ...

Pathogenesis of TB

Inhaling of M.tb

Implantation at alveoli

Multiplication of M.tb

Spreading

Primary infection

Ghon focus

Lympho-hematogenous

Lymphatic system Hilar lymphadenopathy

Primary complex

CMIRAdequate TB infection

Inadequate Primary TB

Unfavorable to growthEg. BM, liver, spleen

Favorable to growthEg. Upper lung, renal, epiphysis

Page 3: presentation TB final - thaipedlung.org · Microsoft PowerPoint - presentation TB final Author: mook Created Date: 8/7/2008 4:42:31 AM ...
Page 4: presentation TB final - thaipedlung.org · Microsoft PowerPoint - presentation TB final Author: mook Created Date: 8/7/2008 4:42:31 AM ...

Clinical manifestation1. Exposure (Tuberculosis contact)2. Infection (Latent tuberculosis infection : LTBI)3. Disease (Tuberculosis disease)

Page 5: presentation TB final - thaipedlung.org · Microsoft PowerPoint - presentation TB final Author: mook Created Date: 8/7/2008 4:42:31 AM ...

There are 2 types of TB

Latent TB Infection TB Disease

Page 6: presentation TB final - thaipedlung.org · Microsoft PowerPoint - presentation TB final Author: mook Created Date: 8/7/2008 4:42:31 AM ...

Latent TB infection

A person with latent TB infection :

- Has a POSITIVE skin test

- Has a NORMAL CXR

(granuloma, calcification)

Page 7: presentation TB final - thaipedlung.org · Microsoft PowerPoint - presentation TB final Author: mook Created Date: 8/7/2008 4:42:31 AM ...

Latent TB infection

- Has breathed in TB germs

- Feels fine, is not sick

- Cannot spread TB germs to others

Page 8: presentation TB final - thaipedlung.org · Microsoft PowerPoint - presentation TB final Author: mook Created Date: 8/7/2008 4:42:31 AM ...

TB disease

A person with TB disease :

- Has a POSITIVE skin test

- Has a BAD CXR

Page 9: presentation TB final - thaipedlung.org · Microsoft PowerPoint - presentation TB final Author: mook Created Date: 8/7/2008 4:42:31 AM ...

TB disease

- Feels sick

- Can spread TB germs to others

- TB disease can be cured with medicine!!

Page 10: presentation TB final - thaipedlung.org · Microsoft PowerPoint - presentation TB final Author: mook Created Date: 8/7/2008 4:42:31 AM ...

Investigation for TB• Tuberculin skin test• AFB smear• Chest X-ray• Culture & drug sensitivity• PCR

Page 11: presentation TB final - thaipedlung.org · Microsoft PowerPoint - presentation TB final Author: mook Created Date: 8/7/2008 4:42:31 AM ...

Tuberculin skin test

Page 12: presentation TB final - thaipedlung.org · Microsoft PowerPoint - presentation TB final Author: mook Created Date: 8/7/2008 4:42:31 AM ...

Mantoux test - Purified protein derivative (PPD) 0.1 ml ID- อานผลที่ 48-72 hr- ใหผลบวกไดภายใน 2-10 wk หลังจากไดรับเชื้อ

Page 13: presentation TB final - thaipedlung.org · Microsoft PowerPoint - presentation TB final Author: mook Created Date: 8/7/2008 4:42:31 AM ...

Mantoux test - Immediate hypersensitivity reaction : 24 hr- Delayed (cellular) hypersensitivity reaction

T-cell

Lymphokines eg. IFN-y, IL- 8

Migration

- Vasodilatation

-Tissue edema

- fibrin, Inflammatory cellInduration & Erythema

Max : 48 – 72 hrs

Page 14: presentation TB final - thaipedlung.org · Microsoft PowerPoint - presentation TB final Author: mook Created Date: 8/7/2008 4:42:31 AM ...

Positive tuberculin skin test

Induration :≥ 5 mm

- สัมผัสกับผูปวยวัณโรค sputum AFB +ve และไมเคยได BCG

- CXR เขาไดกับวัณโรค

- ภูมิตานทานต่ํา เชน HIV, organ transplant, steroid treatment

Page 15: presentation TB final - thaipedlung.org · Microsoft PowerPoint - presentation TB final Author: mook Created Date: 8/7/2008 4:42:31 AM ...

≥ 10 mm- อยูในถิน่ที่มีอุบัติการณวัณโรคสูง

- โรคทีท่ําใหภมูิตานทานต่ําเล็กนอย เชน DM, cancer, CRF

- เด็กอายุนอยกวา 4 ป

- เด็กทีม่ีประวัติสัมผัสกับผูใหญที่มีความเสีย่งสูง

≥ 15 mm- เด็กอายุมากกวา 4 ป ที่ไมมีปจจัยเสี่ยง

Positive tuberculin skin test

Page 16: presentation TB final - thaipedlung.org · Microsoft PowerPoint - presentation TB final Author: mook Created Date: 8/7/2008 4:42:31 AM ...

False negative for tuberculin test• ปจจัยที่เกี่ยวของกับตัวคนไข

• ปจจัยที่เกี่ยวของกับน้ํายาทดสอบ

• ปจจัยที่เกี่ยวของกับวิธีการฉีด

• ปจจัยที่เกี่ยวของกับการอานผลและการบันทึก

1. Infection : virus, bacteria, fungus2. Recent lived vaccine : MMR3. Metabolic disease : Chronic renal failure4. Malnutrition5. Lymphoid disease : lymphoma, chronic leukemia6. Drug : corticosteroid, immunosuppressant7. Age : newborn8. Stress : surgery, burn, mental illness

Page 17: presentation TB final - thaipedlung.org · Microsoft PowerPoint - presentation TB final Author: mook Created Date: 8/7/2008 4:42:31 AM ...

AFB smear

Mycobacterium tuberculosisSputum, Gastric content

Beaded-bacilli bacteria

Page 18: presentation TB final - thaipedlung.org · Microsoft PowerPoint - presentation TB final Author: mook Created Date: 8/7/2008 4:42:31 AM ...

Chest X-ray- Hilar lymphadenopathy

- Segmental or lobar pneumonia

- Atelectasis

- Miliary

- Consolidation

- Pleural effusion

- Cavitary lesion

Page 19: presentation TB final - thaipedlung.org · Microsoft PowerPoint - presentation TB final Author: mook Created Date: 8/7/2008 4:42:31 AM ...

Miliary TB

Page 20: presentation TB final - thaipedlung.org · Microsoft PowerPoint - presentation TB final Author: mook Created Date: 8/7/2008 4:42:31 AM ...

Culture, drug sensitivity

BACTEC 7 – 21 days