nasal meatus


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Related to nasal meatus: nasal sinus, nasal fossa, nasal spine

na·sal me·a·tus

[TA]
any of four passages in the nasal cavity formed by the projection of the conchae: inferior nasal meatus [TA] (meatus nasi inferior [TA]), lies below the inferior concha; middle nasal meatus [TA] (meatus nasi medius [TA]), lies between the middle and inferior conchae; superior nasal meatus [TA] (meatus nasi superior [TA]), lies between the superior and middle conchae; common nasal meatus [TA] (meatus nasi communis [TA]) is the part of the nasal cavity between the conchae and the nasal septum.
Synonym(s): meatus nasi [TA]

na·sal me·a·tus

(nā'zăl mē-ā'tŭs) [TA]
The three passages (inferior, middle, superior) in the nasal cavity formed by the projection of the conchae.
Synonym(s): meatus nasi.
References in periodicals archive ?
For these patients, gauze containing tetracaine and oxymetazoline hydrochloride spray was inserted into the inferior nasal meatus until it reached the posterior part and compression was performed.
This study evaluated the outcomes of endoscopic surgery and conventional nasal packing for epistaxis in the posterior fornix of the inferior nasal meatus. The failure rate, extent of discomfort and incidence of nasal cavity adhesion were significantly lower in the surgery group than in the packing group, indicating that endoscopic surgery was superior to conventional nasal packing.
In all 53 patients, the bleeding sites were mostly localized in the posterior nasal dome of the inferior nasal meatus, with the large branches of the posterolateral nasal arteries distributed around the external lateral wall.10 Intermittent bleeding was observed before surgery or nasal packing, with blood effusion from the anterior naris, pharynx oralis, contralateral nasal cavity, affected eyes and the external acoustic meatus; these are the typical clinical features of epistaxis in the posterior fornix of the inferior nasal meatus.
The primary goal of treatment for epistaxis is the identification of the bleeding sites, followed by immediate and effective haemostasis.14 Patients with epistaxis in the posterior fornix of the inferior nasal meatus should receive immediate treatment after pre-operative preparation, which include fluid infusion, anti-inflammatory therapy and, in some cases, anti-shock therapy.
The bleeding site was found in the right posterior fornix of the inferior nasal meatus and haemostasis was achieved.
In our study, extensive efforts were made to identify potential bleeding sites in the olfactory fissure, sphenoethmoidal recess and middle nasal meatus; the results indicated no active bleeding.