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[Functional laryngeal obstruction]

M E Alonso Peces1, J de Miguel Díez, J L Izquierdo Alonso

  • 1Servicio de Neumología, Hospital Universitario de Getafe.

Archivos De Bronconeumologia
|December 1, 1995
PubMed
Summary
This summary is machine-generated.

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Four patients experienced reversible upper airway obstruction, presenting as dyspnea crises. This functional condition, often mistaken for asthma, was diagnosed via flow-volume curves and confirmed with bronchoscopy.

Area of Science:

  • Pulmonology
  • Respiratory Medicine
  • Diagnostic Imaging

Background:

  • Reversible upper airway obstruction is a rare condition.
  • Symptoms can mimic other respiratory diseases like asthma.
  • Diagnosis can be challenging due to the functional nature of the obstruction.

Observation:

  • Four patients presented with recurrent dyspnea and respiratory sounds.
  • Initial assessments for organic causes and asthma were negative.
  • Flow-volume curves showed upper airway obstruction with poor reproducibility.

Findings:

  • Functional obstruction of the upper airways was identified in all four patients.
  • Repeatedly normal resistance values were noted.
  • Fiberoptic bronchoscopy confirmed the non-organic, functional cause.

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Implications:

  • Highlights the importance of considering functional upper airway obstruction in differential diagnoses.
  • Suggests specific diagnostic approaches like flow-volume curves and bronchoscopy for challenging cases.
  • Emphasizes the need for accurate diagnosis to guide appropriate management and avoid misdiagnosis of asthma.