Prenatal detection of unilateral nasal airway obstruction caused by a dacryocystocele

Unilateral Nasal Obstruction Caused by a Large Nasopharyngeal Cyst.

A 40-year-old man presented with left-side nasal obstruction for the past nine months. He had been treated for allergic rhinitis with nasal steroids for a long time. An anterior rhinoscopic examination was normal. Endoscopic examination revealed a nodulary mass in the nasopharynx, partially obstructing the left choana (Figure 1A). An endoscopic examination of the right nasopharynx revealed regu...

detection of airway partitioning following unilateral nasal stimulations by the forced oscillation technique in rats.

nasal mucosa has an extraordinary nerve supply with unique geometry that encompasses complex physiology. among these, side-specific predilections to the respiratory and autonomic centers are the interesting issues that have been raised about the consequences of the nasal irritations. the aim of the study was an evaluation of how intranasal stimulation influences lung mechanics and determines wh...

Detection of airway partitioning following unilateral nasal stimulations by the forced oscillation technique in rats.

Nasal mucosa has an extraordinary nerve supply with unique geometry that encompasses complex physiology. Among these, side-specific predilections to the respiratory and autonomic centers are the interesting issues that have been raised about the consequences of the nasal irritations. The aim of the study was an evaluation of how intranasal stimulation influences lung mechanics and determines wh...

Nasal airway obstruction and facial development.

A Case of Congenital High Airway Obstruction Syndrome Caused by Complete Tracheal Obstruction with Associated Anomalies

An obstruction of the fetal upper airway in utero due to various reasons may cause a fatal condition congenital high airway obstruction syndrome (CHAOS). The prenatal ultrasound fi ndings of CHAOS include large echogenic lungs, fl attened or inverted diaphragms, dilated airways distal to the obstruction, and fetal ascites and/or hydrops [1]. If it is associated with severe hydrops and/ or assoc...