What therapies do you routinely use to prevent mucus plug formation after endobronchial stent placement?

After airway stent placement, especially silicone stents and/or Y stents, I start my patients on albuterol neb BID; hypertonic saline neb BID, and NAC neb BID. If there are any issues with adherence, I use either albuterol + hypertonic saline or albuterol + NAC depending on patient preference. If they require a clean-up bronchoscopy on a dual regimen, I either resume the 3-drug regimen or add something else such as Mucinex PO.