COMPARATIVE STUDY
JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
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Multiplanar reconstruction: a new method for the diagnosis of tracheobronchial rupture?

OBJECTIVE: To compare multiplanar reconstruction with operative techniques (bronchoscopy, surgery and/or autopsy) for the diagnosis of tracheobronchial rupture.

DESIGN: Prospective, observational study.

SETTING: Surgical intensive care unit.

PATIENTS AND PARTICIPANTS: Tracheobronchial rupture was suspected on clinical grounds and from radiological findings.

INTERVENTIONS: An initial helical computed tomography scan was performed on all patients meeting the inclusion criteria, and operative techniques were then performed. Multiplanar reconstructions were reformatted and reviewed by two independent radiologists.

MEASUREMENTS AND RESULTS: Twenty-four consecutive patients met the inclusion criteria. Tracheobronchial rupture was diagnosed in 13 patients by at least one operative technique. Multiplanar reconstructions were positive in 15 patients. The diagnostic sensitivity and specificity of multiplanar reconstructions were 100% (95%CI, 85-100) and 82% (95%CI, 64-82), respectively. The positive and negative predictive values were 87% (95%CI, 74-87) and 100% (95%CI, 78-100), respectively. For tracheobronchial rupture, the positive and negative likelihood ratios were 5.5 (95%CI, 2.35-5.5) and 0 (95%CI, 0-0.24), respectively. The Kappa coefficients were 0.83 (95%CI, 0.6-1.06) for agreement between operative techniques and multiplanar reconstruction, and 0.91 (95%CI, 0.59-0.91) for agreement between the two radiologists.

CONCLUSIONS: Multiplanar reconstruction appears to be a sensitive technique for the identification of tracheobronchial rupture because of its excellent negative likelihood ratio. In clinical practice, negative multiplanar reconstruction can exclude a diagnosis of tracheobronchial rupture, making bronchoscopy unnecessary. When multiplanar reconstruction is positive, tracheobronchial rupture should be confirmed by bronchoscopy.

DESCRIPTOR: Trauma.

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