Patient selection is critical to optimizing patient outcomes.
The Chartis system helps physicians identify appropriate candidates for the Zephyr valve. Recommended patient selection criteria for the Zephyr valve:
- FEV1 15-45% Predicted; GOLD stage III or IV Emphysema patient with CT confirming Emphysema diagnosis
- Residual volume (RV) > 180% of predicted value, measured by body plethysmography
- Little or no collateral ventilation from adjacent lobe, as measured by the Chartis system
- Complete fissures, as analyzed by validated software program
Please refer to the Instructions for Use for a complete listing of indications, contraindications, warnings and precautions.