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Respiratory sounds, also known as lung sounds or breath sounds, are the specific sounds generated by the movement of air through the respiratory system. [1] These may be easily audible or identified through auscultation of the respiratory system through the lung fields with a stethoscope as well as from the spectral characteristics of lung sounds. [2]
The main difference between VCD and asthma is the audible stridor or wheezing that occurs at different stages of the breath cycle: VCD usually causes stridor on the inhalation, while asthma results in wheezing during exhalation. [5] [6] [7] Patients with asthma usually respond to the usual medication and see their symptoms resolve.
In the absence of imaging, either invasive (e.g. laryngoscopy) or non-invasive (e.g. computed tomography scan), congenital VFP can be detected in infants through the presence of stridor (i.e. a high-pitched wheezing resulting from a blockage in the larynx or trachea), difficulties feeding, an abnormal sounding cry or excessive hoarseness. [8]
Stridor (from Latin 'creaking/grating noise') is an extra-thoracic high-pitched breath sound resulting from turbulent air flow in the larynx or lower in the bronchial tree. It is different from a stertor , which is a noise originating in the pharynx .
Symptoms can be mild to severe. [citation needed] Symptoms inside the lung include noisy breathing that may get better when you change your baby's position or while he or she is asleep. Breathing problems that get worse during coughing, crying, feeding or colds. High-pitched sound during breathing (stridor). High-pitched cough.
786 Symptoms involving respiratory system and other chest symptoms. 786.0 Dyspnea and respiratory abnormalities. 786.03 Apnea; 786.04 Cheyne-Stokes respiration; 786.05 Shortness of breath; 786.06 Tachypnea; 786.07 Wheezing; 786.09 Other respiratory abnormalities Bradypnea; 786.1 Stridor; 786.2 Cough; 786.3 Hemoptysis; 786.4 Abnormal sputum; 786 ...
Some infants have feeding difficulties related to this problem. Rarely, children will have significant life-threatening airway obstruction. The vast majority, however, will only have stridor without other more serious symptoms such as dyspnea (difficulty breathing). [citation needed]
The wheezing symptom is episodic and the child is completely normal in between wheezing episodes. It has a good prognosis and only supportive treatment is required. Meanwhile, multi-trigger wheezing is associated with allergy and a family history of asthma. Symptoms occur in between wheezing episodes and are likely to persist beyond early ...