Background: A new procedure, pyriform turbinoplasty, is described and nasal airflow is measured before and after this procedure in a virtual model.
Methodology: Pyriform turbinoplasty is the submucosal reduction of the bone of the frontal process of the maxilla and the lacrimal bone. It opens part of the lateral margin of the nasal valve area with minimal damage to nasal mucosa. The resection of bone in this area can be extended by "nasal wall lateralization" when the lacrimal bone that joins the uncinate process behind the lacrimal duct as well as the base of the inferior turbinate and the edge of the maxilla at the rim of the pyriform aperture are removed. Nasal airflow was simulated using computational fluid dynamics and ANSYS Fluent solver.
Results: Analysis using fluid dynamics showed that these procedures help ventilation in the main airflow areas without substantially altering the normal pattern of airflow.
Conclusions: The changes after performing a pyriform turbinoplasty seem to be an improvement when compared to the changes after inferior turbinate surgery that can misdirect the airflow largely through the inferior meatus.
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http://dx.doi.org/10.4193/Rhino14.259 | DOI Listing |
J Neurosci
January 2025
Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA.
Odor perception plays a critical role in early human development, but the underlying neural mechanisms are not fully understood. To investigate these, we presented appetitive and aversive odors to infants of both sexes at one month of age while recording functional magnetic resonance imaging (fMRI) and nasal airflow data. Infants slept during odor presentation to allow MRI scanning.
View Article and Find Full Text PDFObjectives: To evaluate nasal septum changes after rapid maxillary expansion (RME) during the mixed dentition and to verify the association between quantitative and qualitative assessments of nasal septum deviation (NSD) by ear, nose, and throat (ENT) specialists.
Materials And Methods: The sample comprised 24 patients (11 male, 13 female) with a mean age of 7.62 ± 0.
Laryngoscope Investig Otolaryngol
February 2025
Objectives: Hypoglossal nerve stimulation (HGNS) is a promising surgical option for patients with obstructive sleep apnea (OSA) who are intolerant of continuous positive airway pressure therapy (CPAP). Efficacy studies for HGNS stimulation largely focus on the apnea-hypopnea index and/or oxygen desaturation index. This study's objective was to show the physiological effects of HGNS stimulation on upper airway patency, airflow, and treatment effect during polysomnography (PSG) testing.
View Article and Find Full Text PDFClin Exp Otorhinolaryngol
January 2025
Department of Otolaryngology-Head and Neck Surgery, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Background: The septal swell body (SSB), a distinct anatomical structure located in the anterior nasal septum, has been recognized as a significant contributor to nasal obstruction, impacting airflow dynamics and nasal resistance. This meta-analysis evaluated the impact of septal swell body volume reduction (SSBVR).
Methods: A systematic review of studies from PubMed, SCOPUS, Embase, Web of Science, and Cochrane databases was conducted through October 2024.
EClinicalMedicine
January 2025
WEISS Centre, University College London, UK.
Background: The COVID-19 pandemic highlighted the need for improved infectious aerosol concentrations through interventions that reduce the transmission of airborne infections. The aims of this review were to map the existing literature on interventions used to improve infectious aerosol concentrations in hospitals and understand challenges in their implementation.
Methods: We reviewed peer-reviewed articles identified on three databases, MEDLINE, Web of Science, and the Cochrane Library from inception to July 2024.
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