Measuring pulse oscilloscope for what?

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Oscilloscope is a new method to probe the mechanical characteristics of the respiratory system, widely used with many different subjects and contraindications to spirometry to identify some respiratory diseases. . The measurement of pulse oscilloscope has many advantages such as being quick and simple, requiring the least cooperation of the patient.

1. What is an impulse oscillator?

Pulsed oscillometric oscillation is a new method to probe mechanical characteristics of the respiratory system such as airway resistance, dilatation, etc. Since then, it has been clinically applied in diagnosis and treatment monitoring of a number of patients. diseases of the respiratory tract.
When measuring respiratory function by spirometry, the patient needs to exert himself, so it can be a difficult obstacle for the group of patients who are elderly or have serious diseases, severe cardiovascular disease. In these cases, the oscillometric method is preferred, because the patient does not need to exert himself when measuring the oscilloscope.
Working principle of oscilloscope: Using a pulse generator with multiple frequencies between 5-35HZ launched into the airway while the patient is breathing normally (the tidal volume). Through the interaction with the respiratory system, it changes the nature of the impulses from which the parts will receive and record the total obstruction of the airway. From there, use the algorithm to figure out the necessary parameters. While measuring using pulses of different frequencies, abnormalities can be examined in the locations of the central or peripheral airways, intrathoracic or extrathoracic.
Manipulation of pulse oscilloscope:
Patient sits upright, head neutral or slightly tilted back Patient wears nose clip and rests both hands on cheek and chin or technician/parent in case of young child Use your hands to support the baby's cheeks and floor of the mouth. The patient breathes normally into the tube for 30-60 seconds (usually 40 seconds). Bronchodilator testing can be done if diagnostic is needed in some cases. The operation is relatively simple, the measurement time is short, the cooperation is minimal, so it can be measured in the case of young children and some contraindications to spirometry.
Advantages of oscilloscope: The indication of oscilloscope is relatively wide, can be performed for subjects who cannot perform spirometry, such as
Can make children 2 years old and older, while breathing Sign is over 5 years old. Elderly patients with severe chronic diseases. The patient has a soft airway. Some studies have found that bronchodilator testing is more sensitive than spirometry, and is more sensitive in measuring changes in airway function in the test.

2. Purpose of pulse oscilloscope

Oscilloscopes are used for diagnosis, monitoring of disease progression and response to treatment. Oscilloscope is clinically applied in pathological cases such as:
Asthma: Diagnosis of bronchial asthma and bronchodilator test in asthma to see how important the response to bronchodilators is for the age group from 2-5 years old, the group cannot perform spirometry; Used in the test of airway stimulation with methacholine and histamine, distinguishing the airways of asthmatic children when allowed to run freely. Since then, there is a program to control bronchial asthma for children. Bronchiolitis : Obstruction of the airways circulation, from the measurement of pulsation oscillations, the involvement of biological substances in the inflammatory process and the total tissue impedance index is measured by oscillometric oscillations. .

Chronic Obstructive Disease (COPD) Status: Sometimes when performing spirometry makes it difficult to diagnose a patient with COPD, oscilloscopes are a helpful method to help diagnose the disease. One study found that oscillometric parameters could detect early changes in respiratory function in people predicted to lose control with asthma and early airway disease in smokers. Tobacco Pulse oscillometric method is applied in the diagnosis of respiratory diseases, especially in cases with contraindications to spirometry. Especially important in diagnosing bronchial asthma in children, measuring the bronchodilator response to drugs, thereby providing appropriate treatment. The oscillometric oscilloscope also has advantages such as fast measurement time, simplicity, minimal coordination, direct measurement of airway resistance...
If abnormal problems are detected, the customer should visit examination and consultation with specialists.

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