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This topic has appeared in the trending rankings 1 time(s) in the past year. While it does not trend frequently, its appearance suggests a renewed or concentrated surge of public interest.
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Endobronchial_valve entered the ranking for the first time today at position #. This is its highest position ever recorded.
This topic has appeared in the English Wikipedia rankings 1 time. It first appeared on 2026-05-05 and was most recently seen on 2026-05-05.
An endobronchial valve (EBV) is a small, one-way valve, which may be implanted in an airway feeding the lung or part of lung. The valve allows air to be breathed out of the section of lung supplied, and prevents air from being breathed in. This leaves the rest of the lung to expand more normally and avoid air-trapping. Endobronchial valves are typically implanted using a flexible delivery catheter advanced through a bronchoscope in minimally invasive bronchoscopic lung volume reduction procedures in the treatment of severe emphysema. The valves are also removable if they are not working properly.
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