| Measurement of left mainstem bronchus using multiplane CT reconstructions and relationship between patient characteristics or tracheal diameters and left bronchial diameters. | |
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MedLine Citation:
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PMID: 16840389 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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STUDY OBJECTIVES: To measure the tracheal diameters (TDs) [transverse (Tr) TD, and anteroposterior (AP) TD] and left main bronchus diameters (LBDs) [Tr and AP] using multiplane CT scan reconstructions with a tridimensional correction of the declination. To evaluate the relationship between clinical variables and CT scan diameters of the tracheobronchial tree. To aid in the selection of a double-lumen tube of appropriate size. DESIGN: Prospective observational study. SETTING: Private and university hospitals. PATIENTS: A total of 206 patients (105 women and 101 men) undergoing a CT scan for medical investigations or preoperative evaluation. INTERVENTION: No intervention. MEASUREMENTS AND RESULTS: TDs and LBDs are greater in men (p < 0.001). The Tr-TD is smaller than AP-TD for men (p < 0.001). The Tr-LBD is greater than AP-LBD in both sexes (p < 0.001). In men, height, Tr-TD, and AP-TD are predictive factors for Tr-LBD, while Tr-TD and AP-TD are the only predictive factors for AP-LBD. In women, Tr-TD and AP-TD are the only predictive factors for Tr-LBD and AP-LBD. The smallest LBD (ie, the lesser of the Tr-LBD or the AP-LBD [called the smallest LBD]) is the Tr-LBD in 25.2% of the cases. The mean (+/- SD) ratio of the smallest LBD/Tr-TD is 0.70 +/- 0.14 for men and 0.65 +/- 0.12 for women. The estimated (Est) LBD is calculated using this ratio. The mean value for Est-LBD minus the smallest LBD is 1.6 +/- 1.3 mm, and this difference is < 1 mm in 40% of male patients and 39% of female patients. CONCLUSIONS: In conclusion, the left main bronchus is most often elliptic, and the smallest LBD cannot be accurately evaluated using patient characteristics or a ratio from TD. |
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Authors:
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Philippe Olivier; David Hayon-Sonsino; Jean Paul Convard; Pierre-Antoine Laloë; Marc Fischler |
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Publication Detail:
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Type: Clinical Trial; Journal Article; Multicenter Study |
Journal Detail:
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Title: Chest Volume: 130 ISSN: 0012-3692 ISO Abbreviation: Chest Publication Date: 2006 Jul |
Date Detail:
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Created Date: 2006-07-14 Completed Date: 2006-08-10 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0231335 Medline TA: Chest Country: United States |
Other Details:
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Languages: eng Pagination: 101-7 Citation Subset: AIM; IM |
Affiliation:
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Groupe des Anesthésistes Réanimateurs de l'Hôpital Privé d'Antony, France. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Bronchi
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anatomy & histology* Female Humans Intubation, Intratracheal Male Middle Aged Models, Biological Predictive Value of Tests Prospective Studies Sex Factors Tomography, X-Ray Computed Trachea / anatomy & histology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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