Understanding Biphasic Stridor: Causes and Treatments

Learn about biphasic stridor, its causes, symptoms, and the importance of prompt medical evaluation.

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Biphasic stridor is a harsh, high-pitched sound caused by turbulent airflow in the upper airway, audible during both inspiration and expiration. It indicates an obstruction at the level of the vocal cords or immediately below them. Immediate medical evaluation is essential as it can signal a serious condition requiring prompt treatment.

FAQs & Answers

  1. What causes biphasic stridor? Biphasic stridor is often caused by an obstruction at the level of the vocal cords or just below them, which can result from conditions such as croup, epiglottitis, or foreign body aspiration.
  2. How is biphasic stridor diagnosed? Diagnosis of biphasic stridor typically involves a thorough clinical examination, a review of the patient's medical history, and may include imaging studies or endoscopy to visualize the airway.
  3. What are the symptoms of biphasic stridor? Symptoms of biphasic stridor include a harsh, high-pitched sound during both inhalation and exhalation, difficulty breathing, and a possible change in voice. Patients may also exhibit signs of respiratory distress.
  4. What is the treatment for biphasic stridor? Treatment for biphasic stridor depends on the underlying cause and may include corticosteroids, nebulized epinephrine, or emergency interventions to relieve airway obstruction.

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