Impact of posterior septum resection on nasal airflow pattern and warming function

Lifeng Li, Nyall R. London, Hongrui Zang, Demin Han

Research output: Contribution to journalArticle

Abstract

Background: The functional significance of the posterior segment of the septum is not fully understood. Aims/Objectives: The purpose of this study was to evaluate the impact of posterior septum resection with varying extents on nasal airflow pattern and warming function, and to determine the appropriate resection extent on posterior septum without disturbing airflow pattern. Material and Methods: Three dimensional models were established from the nasal CT scan of a healthy female volunteer without nasal disease. The models included the normal, as well as 1 cm, 2 cm, and 3 cm extent of posterior septum resection by virtual surgery. Using computational fluid dynamics, the airflow characteristics such as average and peak airflow velocity, average wall shear stress, average temperature and turbulence kinetic energy were recorded and compared among the four models. Results: By comparison with the normal model, the virtual surgeries with varying extents of posterior septum resection (1 cm, 2 cm, and 3 cm), demonstrated little alteration on indices of the average and peak airflow velocity, average wall shear stress, airflow temperature and turbulence kinetic energy. However, a statistical difference of the abovementioned indices existed when compared between varying planes of the nasal cavity (p <.001), although this did not appear to be significantly influenced by the degree of posterior septectomy. Conclusions and significance: From an aerodynamics perspective, little disturbance on airflow pattern and warming function of nasal cavity could be detected with increasing resection of posterior septum (up to 3 cm). These results may imply that resection of the posterior septum (up to 3 cm) has little impact on nasal function.

Original languageEnglish (US)
JournalActa Oto-Laryngologica
DOIs
StateAccepted/In press - Jan 1 2019

Fingerprint

Nose
Nasal Cavity
Nose Diseases
Temperature
Hydrodynamics
Healthy Volunteers

Keywords

  • computational fluid dynamics
  • Nasal septum
  • posterior resection
  • virtual surgery

ASJC Scopus subject areas

  • Otorhinolaryngology

Cite this

Impact of posterior septum resection on nasal airflow pattern and warming function. / Li, Lifeng; London, Nyall R.; Zang, Hongrui; Han, Demin.

In: Acta Oto-Laryngologica, 01.01.2019.

Research output: Contribution to journalArticle

@article{c83090067e124518a05e6d101fb74df1,
title = "Impact of posterior septum resection on nasal airflow pattern and warming function",
abstract = "Background: The functional significance of the posterior segment of the septum is not fully understood. Aims/Objectives: The purpose of this study was to evaluate the impact of posterior septum resection with varying extents on nasal airflow pattern and warming function, and to determine the appropriate resection extent on posterior septum without disturbing airflow pattern. Material and Methods: Three dimensional models were established from the nasal CT scan of a healthy female volunteer without nasal disease. The models included the normal, as well as 1 cm, 2 cm, and 3 cm extent of posterior septum resection by virtual surgery. Using computational fluid dynamics, the airflow characteristics such as average and peak airflow velocity, average wall shear stress, average temperature and turbulence kinetic energy were recorded and compared among the four models. Results: By comparison with the normal model, the virtual surgeries with varying extents of posterior septum resection (1 cm, 2 cm, and 3 cm), demonstrated little alteration on indices of the average and peak airflow velocity, average wall shear stress, airflow temperature and turbulence kinetic energy. However, a statistical difference of the abovementioned indices existed when compared between varying planes of the nasal cavity (p <.001), although this did not appear to be significantly influenced by the degree of posterior septectomy. Conclusions and significance: From an aerodynamics perspective, little disturbance on airflow pattern and warming function of nasal cavity could be detected with increasing resection of posterior septum (up to 3 cm). These results may imply that resection of the posterior septum (up to 3 cm) has little impact on nasal function.",
keywords = "computational fluid dynamics, Nasal septum, posterior resection, virtual surgery",
author = "Lifeng Li and London, {Nyall R.} and Hongrui Zang and Demin Han",
year = "2019",
month = "1",
day = "1",
doi = "10.1080/00016489.2019.1688388",
language = "English (US)",
journal = "Acta Oto-Laryngologica",
issn = "0001-6489",
publisher = "Informa Healthcare",

}

TY - JOUR

T1 - Impact of posterior septum resection on nasal airflow pattern and warming function

AU - Li, Lifeng

AU - London, Nyall R.

AU - Zang, Hongrui

AU - Han, Demin

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Background: The functional significance of the posterior segment of the septum is not fully understood. Aims/Objectives: The purpose of this study was to evaluate the impact of posterior septum resection with varying extents on nasal airflow pattern and warming function, and to determine the appropriate resection extent on posterior septum without disturbing airflow pattern. Material and Methods: Three dimensional models were established from the nasal CT scan of a healthy female volunteer without nasal disease. The models included the normal, as well as 1 cm, 2 cm, and 3 cm extent of posterior septum resection by virtual surgery. Using computational fluid dynamics, the airflow characteristics such as average and peak airflow velocity, average wall shear stress, average temperature and turbulence kinetic energy were recorded and compared among the four models. Results: By comparison with the normal model, the virtual surgeries with varying extents of posterior septum resection (1 cm, 2 cm, and 3 cm), demonstrated little alteration on indices of the average and peak airflow velocity, average wall shear stress, airflow temperature and turbulence kinetic energy. However, a statistical difference of the abovementioned indices existed when compared between varying planes of the nasal cavity (p <.001), although this did not appear to be significantly influenced by the degree of posterior septectomy. Conclusions and significance: From an aerodynamics perspective, little disturbance on airflow pattern and warming function of nasal cavity could be detected with increasing resection of posterior septum (up to 3 cm). These results may imply that resection of the posterior septum (up to 3 cm) has little impact on nasal function.

AB - Background: The functional significance of the posterior segment of the septum is not fully understood. Aims/Objectives: The purpose of this study was to evaluate the impact of posterior septum resection with varying extents on nasal airflow pattern and warming function, and to determine the appropriate resection extent on posterior septum without disturbing airflow pattern. Material and Methods: Three dimensional models were established from the nasal CT scan of a healthy female volunteer without nasal disease. The models included the normal, as well as 1 cm, 2 cm, and 3 cm extent of posterior septum resection by virtual surgery. Using computational fluid dynamics, the airflow characteristics such as average and peak airflow velocity, average wall shear stress, average temperature and turbulence kinetic energy were recorded and compared among the four models. Results: By comparison with the normal model, the virtual surgeries with varying extents of posterior septum resection (1 cm, 2 cm, and 3 cm), demonstrated little alteration on indices of the average and peak airflow velocity, average wall shear stress, airflow temperature and turbulence kinetic energy. However, a statistical difference of the abovementioned indices existed when compared between varying planes of the nasal cavity (p <.001), although this did not appear to be significantly influenced by the degree of posterior septectomy. Conclusions and significance: From an aerodynamics perspective, little disturbance on airflow pattern and warming function of nasal cavity could be detected with increasing resection of posterior septum (up to 3 cm). These results may imply that resection of the posterior septum (up to 3 cm) has little impact on nasal function.

KW - computational fluid dynamics

KW - Nasal septum

KW - posterior resection

KW - virtual surgery

UR - http://www.scopus.com/inward/record.url?scp=85075138896&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85075138896&partnerID=8YFLogxK

U2 - 10.1080/00016489.2019.1688388

DO - 10.1080/00016489.2019.1688388

M3 - Article

C2 - 31738638

AN - SCOPUS:85075138896

JO - Acta Oto-Laryngologica

JF - Acta Oto-Laryngologica

SN - 0001-6489

ER -