0
Clinical Investigations: SLEEP AND BREATHING |

Effects of Nasal Prongs on Nasal Airflow Resistance*

Anne-Marie Lorino, PhD; Hubert Lorino, PhD; Estelle Dahan; Marie Pia d’Ortho, MD; André Coste, MD; Alain Harf, MD; Frédéric Lofaso, MD
Author and Funding Information

*From Service de Physiologie (Drs. A. Lorino, d’Ortho, Harf, and Ms. Dahan), and INSERM U 492 (Drs. H. Lorino and Coste), Hôpital Henri Mondor, AP-HP, et Service de Physiologie (Dr. Lofaso), Hôpital Raymond Poincaré, AP-HP, Garches, France.

Correspondence to: Anne-Marie Lorino, PhD, Service de Physiologie - Explorations Fonctionnelles, Hôpital Henri Mondor, 94010 Créteil, France; e-mail: anne-marie.lorino@hmn.ap-hop-paris.fr



Chest. 2000;118(2):366-371. doi:10.1378/chest.118.2.366
Text Size: A A A
Published online

Study objectives: The aim of this study was to investigate whether nasal prongs, which have been proposed to assess nasal flow during sleep, affect nasal airflow resistance (NR).

Design: NR was estimated by posterior rhinomanometry at a 0.5 L/s flow, under eight conditions: in the basal state, and with seven different nasal prongs.

Participants: The study was performed in 17 healthy supine subjects, 8 of whom had basal NR values within the normal range (≤ 2 cm H2O·L−1·s, group 1), and 9 had increased basal NR values (> 2.5 cm H2O·L−1·s, group 2), because of nare narrowness and/or deviated nasal septum.

Measurements and results: NR increased significantly while breathing with nasal prongs (p < 0.0001 in both groups). The changes in NR (ΔNR) induced by the different nasal prongs were characterized by large intersubject and intrasubject variability, with a maximum ΔNR of 24.2 cm H2O·L−1·s. Significant differences were found between the ΔNR induced by the different nasal prongs (p < 0.001 in group 1, and p < 0.0003 in group 2), and for six of them, ΔNR was significantly higher in group 1 than in group 2 (p < 0.02).

Conclusions: This study demonstrates that nasal prongs can markedly increase NR in subjects presenting with nare narrowness and/or deviated nasal septum. Further investigations that would include nocturnal polysomnography are still required to evaluate the possible influence of nasal prongs on the diagnosis of obstructive sleep apnea syndrome and its severity.

Figures in this Article

Sign In to Access Full Content

MEMBER & INDIVIDUAL SUBSCRIBER

Want Access?

NEW TO CHEST?

Become a CHEST member and receive a FREE subscription as a benefit of membership.

Individuals can purchase this article on ScienceDirect.

Individuals can purchase a subscription to the journal.

Individuals can purchase a subscription to the journal or buy individual articles.

Learn more about membership or Purchase a Full Subscription.

INSTITUTIONAL ACCESS

Institutional access is now available through ScienceDirect and can be purchased at myelsevier.com.

Topics

nose

Sign In to Access Full Content

MEMBER & INDIVIDUAL SUBSCRIBER

Want Access?

NEW TO CHEST?

Become a CHEST member and receive a FREE subscription as a benefit of membership.

Individuals can purchase this article on ScienceDirect.

Individuals can purchase a subscription to the journal.

Individuals can purchase a subscription to the journal or buy individual articles.

Learn more about membership or Purchase a Full Subscription.

INSTITUTIONAL ACCESS

Institutional access is now available through ScienceDirect and can be purchased at myelsevier.com.

Figures

Tables

References

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Sign In to Access Full Content

MEMBER & INDIVIDUAL SUBSCRIBER

Want Access?

NEW TO CHEST?

Become a CHEST member and receive a FREE subscription as a benefit of membership.

Individuals can purchase this article on ScienceDirect.

Individuals can purchase a subscription to the journal.

Individuals can purchase a subscription to the journal or buy individual articles.

Learn more about membership or Purchase a Full Subscription.

INSTITUTIONAL ACCESS

Institutional access is now available through ScienceDirect and can be purchased at myelsevier.com.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Find Similar Articles
CHEST Journal Articles
PubMed Articles
  • CHEST Journal
    Print ISSN: 0012-3692
    Online ISSN: 1931-3543