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Tracheostoma occlusion

After the tracheostomy tube has been removed (decannulation), the tracheostoma slowly begins to shrink, which can lead to the opening being completely airtight. In some cases, the shrinkage of the tracheostoma means that after a few hours it is no longer possible to insert a tracheostomy tube into the opening. The extent and duration of the shrinkage depend on how long the tracheostoma - surgical tracheostoma or dilatation tracheostoma - has existed, how large it is and what accompanying diseases (e.g. diabetes, irradiated neck) are present. The shrinking process can take several weeks. In order to make it easier for the patient to speak and swallow during this time, a bandage that is as airtight as possible is placed on the tracheostoma. With such a special weaning and decannulation plaster, the stoma can be closed without any special dressing technique. The seal is made by a cuff integrated into the plaster, an air-filled cuff that exerts a slight pressure on the opening. The cuff is made of soft plastic and closes well even on uneven surfaces.
Spontaneous closure without surgical measures is the case in around 90% of the accesses made using percutaneous dilatation tracheotomy (PDT). But even with a dilatation tracheostoma, in some cases a small fistula (i.e. a tubular opening) remains through which pressure can escape and germs can penetrate the trachea.