What is supraglottic swelling?
Adult supraglottitis is a serious and potentially life-threatening condition, characterised by inflammation of the supraglottic structures of the larynx, namely the arytenoids, the false vocal cords, the laryngeal ventricles, the aryepiglottic folds and the epiglottis.
What is subglottic edema?
Subglottic edema is a common feature following prolonged or traumatic intubation. This edema is part of a local inflammatory cascade causing ulceration, granulation, local devascularization and eventually chondritis of the underlying cartilaginous structures.
What causes supraglottic edema?
Supraglottic edema most commonly results from surgical manipulation, positioning, hematoma formation, overaggressive fluid management, impaired venous drainage, or coexisting conditions (e.g., preeclampsia, angioneurotic edema).
What causes Supraglottis?
Epiglottitis (supraglottitis) is caused by a potentially life-threatening infection that produces upper airway swelling and obstruction. Formerly, the most common etiology was Haemophilus influenza type B (HIB), and the disease usually occurred in children 2 to 8 years of age.
What is supraglottic?
The upper part of the larynx (voice box), including the epiglottis; the area above the vocal cords.
How is airway edema treated?
A definitive airway must be established if edema is extensive or progressing. Most patients with mild acute angioedema may be treated in the same way as those with an allergic reaction. Severe symptoms require steroids, H1 and H2 blockers, and subcutaneous epinephrine in addition to antihistamines.
Is croup subglottic or supraglottic?
Differential diagnoses
| Overview | ||
|---|---|---|
| Characteristics | Croup (subglottic laryngitis; laryngotracheitis) | Epiglottitis (supraglottic laryngitis) |
| Cough | Barking | Absent |
| Voice | Hoarse | Muffled |
| Difficulty swallowing/drooling | Absent | Present |
What is a supraglottic laryngectomy?
Definitions. Supraglottic laryngectomy or horizontal partial laryngectomy is an operation to remove the epiglottis, false vocal cords, and superior half of the thyroid cartilage.
What is supraglottic stenosis?
Conclusions: Supraglottic stenosis is a rare condition that is often associated with external-beam radiation or autoimmune disorders. All of the patients in our series experienced some degree of symptomatic airway obstruction that required management.
Is angioedema an emergency?
Laryngeal edema from angioedema can progress rapidly and cause an immediate life-threatening emergency. In these cases, a definitive airway such as an endotracheal tube should be established. Anaphylaxis is another possible complication.