Expiratory stridor and a barking brassy cough, wheezing, and possibly additional breath sound at the end of expiration (the bagpipe sign) are common. The physical exam will determine whether the patient actually has wheezing or stridor. Significant edema of the neck and the development of stridor are much more common in children than adults. It is important to consider hypocalcaemia as a differential diagnosis in stridor. The differential diagnosis for an adult presenting with stridor and dyspnea is broad, encompassing conditions such as paradoxical vocal fold motion, laryngeal stenosis, asthma, and the less commonly reported adult-onset laryngomalacia. Your emergency physician should always recognize croup, epiglottitis, anaphylaxis, bacterial tracheitis, abscess, and foreign aspiration as a cause of stridor. ... adults, indirect laryngoscopy can be done easily while infants and children require direct laryngoscopy. Stridor is a sign of an underlying health issue rather than a diagnosis or disease in itself. Distinguishing between wheezing and stridor is essential. Stridor: Causes And Differential Diagnosis Stridor is noisy respiration produced by turbulent air flow through the narrowed air passages. After excluding other causes of postoperative stridor, we concluded the patient was suffering from laryngospasm due to hypocalcaemia secondary to postoperative hypoparathyroidism. Differential diagnosis for stridor. Related page: wheeze Common and important causes of stridor for doctors and medical students This page is currently being written and will be available soon. Differential diagnosis of stridor can include infectious, inflammatory, or anatomical causes. To be updated when it is complete please like us on Facebook, follow us on Twitter or subscribe on YouTube using the ‘follow us’ buttons. + + Stridor Definitions in stridor Stridor is a harsh, high-pitched respiratory sound, caused by obstruction of the upper airways at or below the level of the larynx Stridor is worth with distress/crying, particularly in children Expiratory stridor: intrathoracic tracheal cause (as the increase in intrathoracic pressure on expiration makes the obstruction worse) Biphasic stridor: subglottic […] Because the differential diagnosis for airway obstruction is extensive, an anatomic approach is helpful. It may be heard during inspiration, expiration or both. Typically, patients with either wheezing or stridor describe their symptoms simply as wheezing.
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