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The Egyptian Journal of Bronchology
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Assessment of lung functions using impulse oscillometry before and after bronchoscopic lung volume reduction with histoacryl gel

Egyptian Journal of Bronchology volume 13, pages 43–48 (2019)Cite this article

Abstract

Background

Many forms of bronchoscopic lung volume reduction were introduced as a treatment for patients with emphysema surpassing the surgical management and its fatality. Biological bronchoscopic lung volume reduction (BBLVR) proved to be a safe and competent solution inducing collapse of the emphysematous segment(s). Impulse oscillometry (IOS) constitutes an effortless but underused surrogate to spirometry in assessment of pulmonary function. Therefore, the aim of this study was to evaluate the use of IOS before and after BBLVR with histoacryl gel in comparison with spirometry among patients with emphysema.

Patients and methods

A prospective comparative follow-up study was performed at Kobry El-Kobba Military Hospital. A total of 30 patients with radiological evidence of heterogenous emphysema or emphysematous bullae were enrolled during the period from July 2014 to April 2015. BBLVR was accomplished by the instillation of the histoacryl gel into the affected segment(s) using standard technique. Clinical, radiological, and functional assessments were done before and 4 weeks after the procedure.

Results

After BBLVR, the following outcome was measured: 6-min walk test, partial pressure of O2 in arterial blood, forced expiratory volume in the first second, resistance at 5 Hz, resistance at 20 Hz, and reactance at 5 Hz. They improved with statistical significance among all the patients. There was a negative correlation between forced vital capacity and resistance at 5 Hz in the heterogenous emphysema group (ρ=0.47 and P<0.025); however, the forced expiratory volume at first second showed positive correlation with reactance at 5 Hz in emphysematous bullae group (ρ=0.82 and P<0.023).

Conclusion

BBLVR with histoacryl gel is associated with improvement in exercise capacity and lung functions. IOS provided comprehensive assessment of the pulmonary functions, which was in good correlation with spirometry.

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Authors and Affiliations

  1. Chest Department, Faculty of Medicine, Ain Shams University, 8 Ossman Abd Elhafeez Street, 11371, Nasr City, Cairo, Egypt

    Adel M. Khattab & Nevine Abd Elfattah MBBS, MD (Associate Professor)

  2. Military Medical Academy, Kobry El-Koba Military Hospital, Cairo, Egypt

    Ayman Farghaly

  3. Military Medical Academy, Kobry El-Koba Military Hospital, Cairo, Egypt

    Alsayyed Hassan

Authors
  1. Adel M. Khattab
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  2. Nevine Abd Elfattah MBBS, MD
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  3. Ayman Farghaly
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  4. Alsayyed Hassan
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Corresponding author

Correspondence to Nevine Abd Elfattah MBBS, MD.

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Khattab, A.M., Abd Elfattah, N., Farghaly, A. et al. Assessment of lung functions using impulse oscillometry before and after bronchoscopic lung volume reduction with histoacryl gel. Egypt J Bronchol 13, 43–48 (2019). https://doi.org/10.4103/ejb.ejb_79_17

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  • DOI: https://doi.org/10.4103/ejb.ejb_79_17

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