collateral ventilation

collateral ventilation

the process by which gas passes from one lung unit to a contiguous unit through alveolar pores or direct airway anastomoses; the mechanism that explains lack of atelectasis distal to an obstructed bronchus; sometimes also called collateral air drift.

collateral ventilation

the ventilation of alveoli in the lungs through indirect pathways, such as Kohn's pores in alveolar septa or anastomosing bronchioles.
References in periodicals archive ?
Such collateral ventilation prevents atelectasis and thereby subverts the deflating effect of the devices.
The RePneu Coil works independently of collateral ventilation, a common condition in emphysema patients which precludes patients from treatment with other types of implants.
The alveoli are laced with the Pores of Kohn, intercommunications between the alveoli that allow for collateral ventilation.
The peer-reviewed clinical paper, "Radiological and Clinical Outcomes of Using Chartis to Plan Endobronchial Valve Treatment," demonstrates the ability of the bronchoscopic Chartis Pulmonary Assessment System to predict treatment response by determining the presence or absence of collateral ventilation (CV).
This is a normal physiological phenomenon in many individuals, but significant interlobar collateral ventilation subverts the deflating effect of endobronchial blocking devices.
The RePneu Coil works independently of collateral ventilation, a common condition in emphysema patients which disqualifies patients from treatment with other types of implants.
In addition, the RePneu LVRC works independently of collateral ventilation, and is performed in a gentle, well-tolerated procedure with a rapid recovery period.
The flow velocity profiles of HFOV include bulk convection, Taylor dispersion, asymmetric velocity profiles (coaxial flow velocities), pendelluft phenomena, cardiogenic mixing, molecular diffusion, Brownian movement and collateral ventilation.
Unlike Lung Volume Reduction Surgery or other minimally invasive devices designed to treat emphysema, the RePneu LVRC is intended to treat a broad range of emphysema patients, including those with heterogeneous and homogeneous disease, in both upper and lower lobes, and it performs independently of collateral ventilation, a common condition in emphysema patients.
2 showcases improved workflow and dataflow functionality streamlining VIDA's software as a service model, new interactive procedure planning features for lung volume reduction therapies and endobronchial biopsies, and the industry's first automatic lobar fissure integrity scoring application to evaluate collateral ventilation in emphysema patients.
The RePneu LVRC has proven effective in patients with both heterogeneous and homogeneous disease, in both the upper and lower lobes, and it works independently of collateral ventilation.
This treatment offers a minimally invasive alternative to lung volume reduction surgery, and works independently of collateral ventilation.