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Correlation between collateral ventilation and interlobar lung fissures.

Daniele Diso1, Marco Anile, Carolina Carillo

  • 1Department of Thoracic Surgery, University of Rome Sapienza, Rome, Italy.

Respiration; International Review of Thoracic Diseases
|August 30, 2014
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Summary
This summary is machine-generated.

Collateral ventilation (CV) and incomplete interlobar lung fissures (ILF) are key for emphysema treatment. This study validates their assessment, finding a correlation between ILF status and CV, aiding patient selection.

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Area of Science:

  • Pulmonary Medicine
  • Interventional Pulmonology
  • Thoracic Surgery

Background:

  • Bronchoscopic techniques for end-stage emphysema treatment require accurate patient selection.
  • Interlobar collateral ventilation (CV) and interlobar lung fissures (ILF) are critical factors in patient selection for these treatments.

Purpose of the Study:

  • To anatomically validate in vivo the assessment of interlobar collateral ventilation (CV) and interlobar lung fissures (ILF).
  • To compare the accuracy of high-resolution computed tomography (HRCT) with surgical findings for ILF assessment.
  • To evaluate the relationship between CV and ILF status.

Main Methods:

  • Prospective enrollment of 21 patients undergoing lung resection for lung cancer.
  • Assessment of CV using the Chartis catheter system during surgery.
  • Retrospective review of ILF completeness on HRCT.
  • Comparison of HRCT-determined ILF status with intraoperative findings.

Main Results:

  • High-resolution computed tomography (HRCT) showed 76% accuracy in assessing interlobar lung fissures (ILF) compared to surgical findings.
  • CV was present in 11 patients, and incomplete ILF were found in 15 patients during surgery.
  • A significant correlation was observed between incomplete ILF and the presence of CV (odds ratio = 10.0).

Conclusions:

  • A correlation exists between interlobar lung fissure (ILF) status and collateral ventilation (CV).
  • Both catheter evaluation of CV and HRCT assessment of ILF have limitations.
  • Combined information from CV and HRCT enables reliable assessment of anatomical ILF status for emphysema treatment selection.