MindMap Gallery Internal Medicine-Tuberculosis
This mind map contains content related to pulmonary tuberculosis in internal medicine; it introduces relevant knowledge such as tuberculosis transmission, pathology, clinical manifestations, diagnosis, and treatment. Can provide some help for your review!
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tuberculosis
spread
Population: Tuberculosis patients with positive sputum smears
Path: airborne, droplet transmission such as coughing, sneezing, laughing, talking, etc.
The occurrence and development of tuberculosis in the human body
primary infection
Bacteria in the primary lesion reach the lymph nodes and cause lymph node enlargement
Immunity and delayed allergic reactions
secondary tuberculosis
Have obvious clinical symptoms and are prone to cavities and bacteria discharge
pathology
Basic pathological changes
Inflammatory exudation
In the early stage or when the disease worsens and relapses; local neutrophil infiltration, followed by replacement by macrophages and lymphocytes
hyperplasia
Occurs when the collective resistance is strong and the disease is recovering; typical tuberculosis nodules
caseous necrosis
Microscopic examination shows red-stained, structureless granular material containing a lot of lipids, which appears light yellow to the naked eye and looks like cheese.
Pathological changes and outcome
clinical manifestations
1. Symptoms
respiratory system
If you cough or expectorate for more than two weeks, or if there is blood in the sputum, a cavity is formed, or if it is combined with other infections, the sputum may be purulent.
Irritating cough: combined with bronchial tuberculosis
Hemoptysis: 1/3 patients have hemoptysis, most of which are small amounts of hemoptysis.
Chest pain: Accumulation of pleura
Dyspnea: caseous pneumonia, patients with massive pleural effusion
systemic symptoms
Fever: Prolonged afternoon hot flashes
Fatigue, night sweats, loss of appetite, weight loss
2. Physical signs
Large exudation or caseous necrosis
Signs of pulmonary consolidation (increased tremors, dullness on percussion, bronchial breath sounds, and fine crackles)
Large range of fiber ropes
The trachea is displaced to the affected side, the chest cavity of the affected side is collapsed, dullness is present on percussion, breath sounds are weakened on auscultation, and bronchial breath sounds can be heard.
Tuberculous pleurisy with pleural effusion
The trachea is displaced to the unaffected side, the chest on the affected side is full on inspection, the tactile fremitus is weakened, the sound is solid on percussion, and the breath sounds disappear on auscultation.
diagnosis
diagnosis method
Medical history, symptoms and signs
Videography
Chest X-ray is a common method, and CT can improve the resolution
Sputum Mycobacterium tuberculosis test
Sputum specimen collection
Send at least 3 specimens: morning sputum, night sputum, and immediate sputum
Sputum smear test
Simple, fast, easy, reliable, but insensitive
Cultivation method
Accurate and reliable "gold standard", but it takes 2 to 8 weeks
Drug sensitivity, other
Fiberoptic bronchoscopy, tuberculin test, gamma-interferon release test
diagnostic procedures
① Screening for suspicious symptoms ② Whether it is pulmonary tuberculosis ③ Whether it is active ④ Whether it is excreted ⑤ Whether it is drug-resistant ⑥ Determining initial and re-treatment
Tuberculosis classification
①Primary tuberculosis
More common in children and adolescents, with asymptomatic or mild symptoms; typical primary syndrome
②Hematogenous disseminated pulmonary tuberculosis
More common in infants and teenagers; especially children with malnutrition and low resistance caused by long-term use of immune preparations
Acute miliary tuberculosis in adults: acute onset, persistent high fever, severe symptoms of poisoning; superficial lymph node enlargement, hepatosplenomegaly
Subacute and chronic disseminated type: slow onset, mild symptoms; uneven X-ray
③Secondary tuberculosis
Infiltrative pulmonary tuberculosis, cavitary tuberculosis, tuberculosis, caseous pneumonia, fibrocavitary tuberculosis, tuberculous pleurisy, other extrapulmonary tuberculosis, bacteria-negative pulmonary tuberculosis
Differential diagnosis
pneumonia
Acute onset, accompanied by fever, cough, obvious sputum, and increased white blood cells and neutrophils
COPD
Chronic cough, sputum production, and rarely hemoptysis; more frequent in winter; pulmonary function test shows obstructive ventilatory dysfunction
bronchiectasis
Repeated hemoptysis and CT may reveal bronchial lumen enlargement
Lung cancer, mediastinal and hilar diseases, etc.
chemotherapy
in principle
Early stage, regular, full process, appropriate amount, combined; divided into two stages: strengthening and consolidation.
main effect
Sterilization, prevention of drug resistance, sterilization
Introduction to commonly used drugs
Isoniazid
Adult dosage: 300mg, qd/Children: 5~10mg/kg
Side effects: Occasional drug-induced hepatitis and peripheral neuritis can be treated with B6
rifampicin
It is recommended to take it on an empty stomach in the morning or half an hour before breakfast; the urine and urine will be orange-red after taking it.
Adults: 8~10mg/kg; children: 10~20mg/kg, 2 or 3 times a week
Side effects: transient transaminase elevation, jaundice, flu-like symptoms, skin syndrome, thrombocytopenia
pyrazinamide
Adults: 1.5g/d; children: 30~40mg/kg
Side effects: hyperuricemia, liver damage, lack of appetite, joint pain, nausea
ethambutol
Adults: 0.75~1.0g/d; not used for children
Side effects: Optic neuritis
Standardized treatment plan
First treatment
daily medication
2HRZE/4HR
① Intensification period: Isoniazid, rifampicin, pyrazinamide, ethambutol (take once for 2 months)
②Consolidation period: isoniazid, rifampicin (taken immediately for 4 months)
Intermission
2H3R3Z3E3/4H3R3
① Intensive period: isoniazid, rifampicin, pyrazinamide, ethambutol (qod or three times a week for 2 months)
②Consolidation period: isoniazid, rifampicin (qod or three times a week for 4 months)
Retreatment
Sensitive medication regimen
2HRZSE/6~10HRE
① Intensification period: isoniazid, rifampicin, pyrazinamide, streptomycin, ethambutol (qd for 2 months)
②Consolidation period: isoniazid, rifampicin, ethambutol (qd6~10 months)
Intermission
2H3R3Z3S3E3/6~10H3R3E3
① Intensive period: isoniazid, rifampicin, pyrazinamide, streptomycin, ethambutol (qod or three times a week for 2 months)
②Consolidation period: isoniazid, rifampicin, ethambutol (qod or three times a week for 6 months)
Cough is mild, dry cough or a small amount of mucus sputum
primary syndrome
Primary lesion and enlarged tracheobronchial lymph nodes