[Clostridium septicum infection in tumor patients].
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Adenocarcinoma↗
Biomedical subjects
P Dost
Publications and source records attributed to P Dost.
Perforation of the posterior tracheal wall during percutaneous dilatational tracheotomy.
Dilatative percutaneous tracheotomy is more and more indicated in intensive-care medicine. We report on the perforation of the posterior tracheal wall observed in 3 patients after this procedure. In 2 patients the tracheo-oesophageal fistula was closed by the use of a pediculated flap from the infrahyoideal muscle. The third patient died due to the underlying disease. As demonstrated by the 3 cases reported here, this complication cannot be avoided in every case neither by the use of an endoscope nor by extensive personal experience of the physician. The possibility of this complication should be known, because it seems to be typical of this procedure. In the case of perforation of the posterior tracheal wall, active surgical treatment seems to be a successful method to deal with this complication.
Adolescent↗
Biocompatibility testing of new polymers in a moving implant bed.
Total reconstruction of the auricle requires a skillful surgical technique and an appropriate material for the shape-supporting frame. Up to now, there is no such material apart from autologous rib cartilage. The combination of chronic microtraumatization of adjacent tissue caused by the mobility of an implant bed such as the auricle and the foreign-body reaction to currently available artificial polymers frequently results in extrusion. In our animal model (rats), polymers of different elasticity were implanted in a moving implant bed to analyse differences in foreign-body reaction related to implant elasticity. The results were significantly better for a rather stiff control material (porous polyethylene). A contributing factor may be better fixation of the implant material by tissue ingrowth into its micropores.
Animals↗