More than 5.7 million new cases of TB (all forms, both pulmonary and extra-pulmonary) were reported to the World Health Organization (WHO) in 2013; 95% of cases were reported from developing countries
Latest figures from 20151 indicate an estimated 10.4 million people had TB, and 1.8 million people died (1.4 million HIV negative and 400 000 HIV positive).
Of further concern is that 480 000 cases of multidrug-resistant (MDR) TBa and a further 100 000 that were estimated to be rifampicin-resistant (RR) TB have occurred in the same period.
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TB Diagnosis, Treatment and Complications
1. DONE BY : MUSTAFA KHALIL IBRAHIM
TBILISI STATE MEDICAL UNIVERSITY
5TH YEAR, 2ND SEMESTER, 1ST GROUP
2.
3. • More than 5.7 million new cases of TB (all forms, both pulmonary and extra-
pulmonary) were reported to the World Health Organization (WHO) in 2013; 95%
of cases were reported from developing countries
4. • Latest figures from 20151 indicate an estimated 10.4 million people had TB, and
1.8 million people died (1.4 million HIV negative and 400 000 HIV positive).
• Of further concern is that 480 000 cases of multidrug-resistant (MDR) TBa and a
further 100 000 that were estimated to be rifampicin-resistant (RR) TB have
occurred in the same period.
5.
6.
7. The most frequent form of presentation of tuberculosis is disease that affects the
lungs (pulmonary tuberculosis), while less frequent forms may affect any part of
the body (extra-pulmonary tuberculosis) or present as acute disseminated
tuberculosis.
8. • Tuberculosis in children is difficult to diagnose, even in its pulmonary form;
children rarely produce sputum, so sputum smear examination can therefore not be
used to obtain bacteriological proof, which is the cornerstone of diagnosis in adults.
It is therefore diagnosed using a systematic approach whereby a number of clinical
signs are interpreted.
9. bacterium Mycobacterium tuberculosis (M tuberculosis). TB is contagious. This means
the bacteria is easily spread from an infected person to someone else. You can get TB
by breathing in air droplets from a cough or sneeze of an infected person. The resulting
lung infection is called primary TB.
• Most people recover from primary TB infection without further evidence of the
disease. The infection may stay inactive (dormant) for years. In some people, it
becomes active again (reactivates).
• Most people who develop symptoms of a TB infection first became infected in the
past. In some cases, the disease becomes active within weeks after the primary
infection.
10. Older adults
Infants
People with weakened immune systems, for example
due to HIV/AIDS, chemotherapy, diabetes, or
medicines that weaken the immune system
Your risk of catching TB increases if you:
Are around people who have TB
Live in crowded or unclean living conditions
Have poor nutrition
The following factors can increase the rate of TB
infection in a population:
Increase in HIV infections
Increase in number of homeless people (poor
environment and nutrition)
Drug-resistant strains of TB
Recent infection (<1 year)
Fibrotic lesions (spontaneously healed)
HIV infection
Silicosis
Chronic renal failure/hemodialysis
Diabetes
IV drug use
Immunosuppressive treatment
Tumor necrosis factor α inhibitors
Gastrectomy
Jejunoileal bypass
Posttransplantation period (renal, cardiac)
tobacco smoking
Malnutrition and severe underweight
11. ACTIVE TBLATENT TB
This condition makes you sick and can spread
to others. It can occur in the first few weeks
after infection with the TB bacteria, or it might
occur years later.
In this condition, you have a TB infection,
but the bacteria remain in your body in an
inactive state and cause no symptoms.
Latent TB, also called inactive TB or TB
infection, isn't contagious. It can turn into
active TB, so treatment is important for the
person with latent TB and to help control the
spread of TB. An estimated 2 billion people
have latent TB.
20. • Infants and children may be infected within the family circle. There are two key
factors In diagnosing tuberculosis in children:
• identification of an infectious adult close to the child;
- loss of weight or failure to thrive
22. • Primary infection is asymptomatic in the majority of cases, and goes unnoticed.
• This is termed infection and must be distinguished from disease.
• Generalized symptoms are often subtle: slight fever, loss of weight, apathy and
listlessness can attract the attention of the parents. Sometimes the symptoms
are more obvious (e.g. a high fever of 39–40 °C and profound lethargy), and
• alert the parents to the fact that something is wrong
Primary pulmonary tuberculosis occurs most often in children less than 5 years of
age.
23. • MUCOCUTANEOUS MANIFESTATIONS, although
infrequent, are highly characteristic:
• ERYTHEMA NODOSUM appears in the form of painful nodules on
the shins, sometimes on the backs of the arms and rarely on the
front, in two to three bursts. They are painful, red, raised lesions
that may turn purple and take on the appearance of a bruise .
24. • PHLYCTENULAR CONJUNCTIVITIS :
begins with generalized pain and irritation
in one eye accompanied by watering and
photophobia. On examination, grey or yellow
25. • LOCAL COMPLICATIONS OF PRIMARY TUBERCULOSIS
• of the lymph node into the bronchi: the lymph node swells and erodes into the
bronchus (usually between the 4th and 7th month of development). This can be a
serious event for small infants, where the caseous material can create acute
bronchial obstruction; in older children it usually causes cough.
27. • EXAMS AND TESTS
• The health care provider will perform a physical exam. This may show:
1.Clubbing of the fingers or toes (in people with advanced disease)
2.Swollen or tender lymph nodes in the neck or other areas
3.Fluid around a lung (pleural effusion)
4.Unusual breath sounds (crackles)
5.Tests that may be ordered include:
29. • Interferon-gamma release blood test, such as the QFT-Gold test to test for TB infection
(active or infection in the past)
• Gene xpert test
• Afb microscopy
• Nucleic acid amplification technology
• Drug susceptibility testing
• Sputum examination and culture
• Thoracocentesis (procedure to remove fluid from the space between the lining of the
outside of the lungs and the wall of the chest)
• CT Scan
• Tuberculin skin test (PPD test)
• biopsy of the affected tissue (done rarely)
30. • The goal of treatment is to cure the infection with medicines that fight the TB
bacteria. Active pulmonary TB is treated with a combination of many medicines
(usually four medicines). The person takes the medicines until lab tests show which
medicines work best.
• You may need to take many different pills at different times of the day for 6 months or
longer. It is very important that you take the pills the way your provider instructed.
• When people do not take their TB medicines like they are supposed to, the infection
can become much more difficult to treat. The TB bacteria can become resistant to
treatment. This means the medicines no longer work.
Isoniazid is the anti-TB medicine that is most commonly used for treatment of latent
TB infection. In children, the recommended length of treatment with isoniazid is 9
months.
31.
32.
33. • Tuberculosis Diagnostics Technology Landscape 5th Edition, May 2017
• https://www.mayoclinic.org/diseases-conditions/tuberculosis/symptoms-
causes/syc-20351250
• Harrison's Principles of Internal Medicine, infectiuos diseases, TB infection
p1102/19th E (2015).