بررسی شکل منحنی جریان و حجم در ضایعات انسدادی کارینا و برونش

Authors

  • احتشامی افشار, امین
  • اسدیان, اسداله
  • افشار, باقر
  • زحمتکش, محمدمهدی
Abstract:

Spirometry and flow - volume loop show the abnormal pattern of pulmonary dysfunction and the site of the obstruction of upper and peripheral airways. For determinig the shape of flow - volume loop in obstruction of carina and bronchus we examined 19 patients with large airway obstruction documented with fiberoptic bronchoscopy via pulmonary function testing and flow ­volume loop performing. Two patients a bout 70% obstruction of carina had F-V loop compatible with upper aiway obstrucion. 10 patients with obstruction of right or left main or intermedius bronchus had PFT criteria of restrictive pulmonary dysfunction but no change in F-V loop. In seven patients with lobar bronchus obstruction this obstruction did not change the shape of flow - volume loop. We reached to the conclusion that F-V loop in obstruction of carina is the same as fixed upper airway obstruction but obstruction in main and intermediate bronchuses show normal F-V loop with restrictive pattern, and obstruction of lobar bronchus dose not significantly change the shape of F-V loop or pulmonary function parameters.

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Journal title

volume 7  issue 19

pages  11- 15

publication date 2000-06

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