Journal article
The effect of maxillary sinus antrostomy size on xenon ventilation in the sheep model
Otolaryngology--head and neck surgery, Vol.131(4), pp.528-533
2004
DOI: 10.1016/j.otohns.2004.04.010
PMID: 15467631
Abstract
A major goal of maxillary antrostomy is to increase sinus ventilation. Limited data exist regarding the effect of maxillary antrostomy size on sinus ventilation. We sought to quantify the effect of uncinectomy, small antrostomy, and large antrostomy on maxillary sinus ventilation using xenon-enhanced CT in the sheep model.
A xenon-oxygen-air mixture was delivered to 8 fresh cadaveric sheep heads while repeated CT scans were performed through the maxillary sinuses. Baseline and postoperative studies were performed after an endoscopic uncinectomy, small antrostomy, or large antrostomy was created. Images were analyzed to measure the density of the xenon gas in the maxillary sinus as a function of time, generating a time constant.
The time constants for both small antrostomy and large antrostomy were significantly different compared to baseline (
P = 0.003 for both). The time constant comparison between small antrostomy and large antrostomy was not significant (
P = 0.948).
A small antrostomy produces a statistically significant increase in maxillary sinus ventilation over baseline. No significant further ventilation increase is obtained by creating a large antrostomy in the sheep model. This lends credence to the use of small antrostomies to improve maxillary sinus ventilation in human sinus surgery.
Details
- Title: Subtitle
- The effect of maxillary sinus antrostomy size on xenon ventilation in the sheep model
- Creators
- Kevin T Brumund - Department of Otolaryngology-Head and Neck Surgery (Drs Brumund and Graham), University of Iowa, Iowa City, IA, USAScott M Graham - Department of Otolaryngology-Head and Neck Surgery (Drs Brumund and Graham), University of Iowa, Iowa City, IA, USAKenneth C Beck - Division of Physiologic Imaging-Department of Radiology (Drs Beck and Hoffman), University of Iowa, Iowa City, IA, USAEric A Hoffman - Division of Physiologic Imaging-Department of Radiology (Drs Beck and Hoffman), University of Iowa, Iowa City, IA, USAGeoffrey McLennan - Division of Pulmonary Medicine-Department of Internal Medicine (Dr McLennan), University of Iowa, Iowa City, IA, USA
- Resource Type
- Journal article
- Publication Details
- Otolaryngology--head and neck surgery, Vol.131(4), pp.528-533
- Publisher
- Mosby, Inc
- DOI
- 10.1016/j.otohns.2004.04.010
- PMID
- 15467631
- ISSN
- 0194-5998
- eISSN
- 1097-6817
- Language
- English
- Date published
- 2004
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Radiology; Neurosurgery; Otolaryngology; Internal Medicine
- Record Identifier
- 9984006458002771
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