Locked lung syndrome

Introduction to atresia lung syndrome Locked lung syndrome (LIS) refers to the obstruction of airway obstruction in patients with bronchial asthma to a critical state. basic knowledge The proportion of illness: 0.002% Susceptible people: no specific people Mode of infection: non-infectious Complications: arrhythmia electrolyte disorder

The cause of atresia lung syndrome

(1) Causes of the disease

The cause is repeated nebulization of isoproterenol, which can cause swelling of the bronchial mucosa, stenosis of the lumen, plus the intermediate product 3-methoxyisoproterenol to block the -receptor and further imbalance of ventilation/blood flow ratio; Mucus obstructs the main bronchial cavity or mucus plugs and extensively embolizes the bronchioles; the -blocker propranolol is used improperly and aggravates bronchospasm.

(two) pathogenesis

Inhalation of isoproterenol by repeated nebulization can cause bronchial mucosal swelling, stenosis of the lumen, and the intermediate product 3-methoxyisoproterenol to block -receptor and further imbalance of ventilation/blood flow ratio.

Atresia of pulmonary syndrome

Eliminate the cause and actively treat complications.

Obstructive pulmonary syndrome complications Complications, arrhythmia, electrolyte disorder

Concurrent arrhythmia and electrolyte imbalance.

Symptoms of atresia of the lung syndrome Common symptoms Blood pressure drop, sitting, breathing, wheezing, breath, abnormality, arrhythmia

Asthma symptoms suddenly aggravated, sitting breathing, severe cyanosis, breathing slowed to stop, sweating, signs with prominent thoracic bulging, lungs breath sounds reduced or disappeared, can smell dull wheezing, heart rate growth, often >150 beats / min, there may be blood pressure drop and arrhythmia.

Examination of atresia lung syndrome

Blood gas analysis showed a decrease in PaO2, an increase in PaCO2, and an acid-base disorder. Pulmonary function tests showed a significant decrease in lung capacity and FEV1.0, and increased airway resistance.

Chest X-ray examination showed that the brightness of both lungs was enhanced, and there was no significant difference between exhalation and inspiratory phase.

Diagnosis and diagnosis of atresia pulmonary syndrome

According to the medical history, clinical manifestations, chest X-ray examination, blood gas analysis, pulmonary function test, can be diagnosed.

Clinical should be differentiated from respiratory failure.

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