Numerical simulation of intranasal airflow after radical sinus surgery

Lindemann, Jörg; Brambs, Hans-Juergen; Keck, Tilman; Wiesmiller, Kerstin; Rettinger, Gerhard; Pless, Daniela

doi:10.1016/j.amjoto.2005.02.010

Cited by 96 publications

(103 citation statements)

References 14 publications

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“…Extensive resection of the inferior turbinate results in an altered nasal valve and the detour of airflow, almost exclusively, through the inferior meatus [8,9]. Patients often complain about the subjective feeling of a blocked nose that is caused by dryness of the nasal mucosa.…”

Section: Discussionmentioning

confidence: 99%

“…Most of the applied techniques in turbinate surgery, especially partial or total resections, lead to a deterioration in nasal air conditioning [8][9][10].…”

Section: Discussionmentioning

confidence: 99%

“…Using a physiological breathing cycle these properties varied over time. The boundary conditions were based on our own in vivo measurements [5,8,9,21,22]. A GE Medical Systems Discovery 690 Scanner with an axial slice thickness of 0.63 mm was used to perform the CT-Scan.…”

Section: Computational Fluid Dynamics Modelmentioning

confidence: 99%

“…Excessive resection of the inferior turbinate leads to a significant reduction in heating and humidification of inhaled air [8][9][10]. Nasal air conditioning is more influenced by medial than inferior resection of the turbinate.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effects of nasal wall lateralization and pyriform turbinoplasty on nasal air conditioning

Sommer¹,

Simmen²,

Briner³

et al. 2016

Otorhinolaryngol Head Neck Sur

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Background: The inferior turbinate, as part of the nasal valve area, plays a key role in directing the airflow and moisturizing and heating the inspired air. Excessive resection of the inferior turbinate leads to a significant reduction in heating and humidification of inhaled air. Different types of turbinate surgery are described in the current literature. Pyriform Turbinoplasty is a new endoscopically performed procedure which includes a submucosal reduction of the bone of the frontal process of the maxilla and the lacrimal bone yet it preserves the mucosal surface. This new surgical technique is able to improve nasal airflow without hampering nasal climatization.

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Section: Discussionmentioning

confidence: 99%

“…Most of the applied techniques in turbinate surgery, especially partial or total resections, lead to a deterioration in nasal air conditioning [8][9][10].…”

Section: Discussionmentioning

confidence: 99%

Section: Computational Fluid Dynamics Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of nasal wall lateralization and pyriform turbinoplasty on nasal air conditioning

Sommer¹,

Simmen²,

Briner³

et al. 2016

Otorhinolaryngol Head Neck Sur

View full text Add to dashboard Cite

show abstract

“…They subsequently made clear airflow characteristics in the nose experimentally and numerically, and found that pressure drop was a main factor of nasal airflow. Lindemann et al focused at a case which underwent radical sinus surgery (Lindemann et al (2004;2005)). In their case, both the lateral nasal wall and the turbinates, inhibiting physiological airflow, were removed by the surgery to realize the enlargements of the nasal cavity volumes and to increase the ratio between nasal cavity volume and surface area.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation for Intranasal Transport Phenomena

Yamamoto¹,

Nakata²,

Nakashima³

et al. 2012

Fluid Dynamics, Computational Modeling and Applications

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Beyond skeletal studies: A computational analysis of nasal airway function in climate adaptation

Bastir,

Sanz‐Prieto,

Burgos

et al. 2024

American Journal of Biological Anthropology

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ObjectivesEcogeographic variation in human nasal anatomy has historically been analyzed on skeletal morphology and interpreted in the context of climatic adaptations to respiratory air‐conditioning. Only a few studies have analyzed nasal soft tissue morphology, actively involved in air‐conditioning physiology.Materials and MethodsWe used in vivo computer tomographic scans of (N = 146) adult individuals from Cambodia, Chile, Russia, and Spain. We conducted (N = 438) airflow simulations during inspiration using computational fluid dynamics to analyze the air‐conditioning capacities of the nasal soft tissue in the inflow, functional, and outflow tract, under three different environmental conditions: cold–dry; hot–dry; and hot–humid. We performed statistical comparisons between populations and sexes.ResultsSubjects from hot–humid regions showed significantly lower air‐conditioning capacities than subjects from colder regions in all the three conditions, specifically within the isthmus region in the inflow tract, and the anterior part of the internal functional tract. Posterior to the functional tract, no differences were detected. No differences between sexes were found in any of the tracts and under any of the conditions.DiscussionOur statistical analyses support models of climatic adaptations of anterior nasal soft tissue morphology that fit with, and complement, previous research on dry skulls. However, our results challenge a morpho‐functional model that attributes air‐conditioning capacities exclusively to the functional tract located within the nasal cavity. Instead, our findings support studies that have suggested that both, the external nose and the intra‐facial soft tissue airways contribute to efficiently warming and humidifying air during inspiration. This supports functional interpretations in modern midfacial variation and evolution.

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Numerical simulation of intranasal airflow after radical sinus surgery

Cited by 96 publications

References 14 publications

Effects of nasal wall lateralization and pyriform turbinoplasty on nasal air conditioning

Effects of nasal wall lateralization and pyriform turbinoplasty on nasal air conditioning

Numerical Simulation for Intranasal Transport Phenomena

Beyond skeletal studies: A computational analysis of nasal airway function in climate adaptation

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