title: Innovative frontal sinus stent acting as a local drug-releasing system.
abstract: Contemporary endonasal sinus surgery has given rise to distinct extended procedures focusing on the frontal sinus. However, surgical results sometimes are flawed, with reactive scarring leading to a relapse of insufficiency of drainage and ventilation. Topical application of medicines may offer help, but the hidden operative field around the frontal sinus is not reached by the usual nasal drugs. The effectiveness of an intraoperative insertion of stents is still a subject of debate in the literature. In previous studies we have seen some positive results. Based on this fact we looked for additional modalities to boost the effectiveness of fronto-nasal stents. We present a new device acting both as a stent and also as a local drug-releasing system. The combination of two therapeutic modalities may improve our treatment results in endonasal frontal sinus surgery. The pharmaceutical basics of our device are presented, and the first clinical data are shown. The first clinical trial was completely successful. Modification of the polymer and also of the released pharmaceutical agents may provide future improvements and may allow additional applications of the system in other areas of our surgical specialty.
authors.affiliation: Department of Otorhinolaryngology and Head and Neck Surgery, University of Greifswald, Walther Rathenau Str. 43-45, 17487 Greifswald, Germany. hosemann@uni-greifswald.de
authors.forename: Werner
authors.initials: W
authors.lastname: Hosemann
authors.forename: Edith
authors.initials: E
authors.lastname: Schindler
authors.forename: Eckard
authors.initials: E
authors.lastname: Wiegrebe
authors.forename: Achim
authors.initials: A
authors.lastname: Göpferich
mesh_terms: D000893:Anti-Inflammatory Agents / Q000008:administration & dosage* / Q000627:therapeutic use*; D002908:Chronic Disease; D003131:Combined Modality Therapy; D003692:Delayed-Action Preparations / Q000008:administration & dosage / Q000627:therapeutic use; D003907:Dexamethasone / Q000008:administration & dosage* / Q000627:therapeutic use*; D016503:Drug Delivery Systems / Q000295:instrumentation*; D004724:Endoscopy; D004867:Equipment Design; D005500:Follow-Up Studies; D015522:Frontal Sinusitis / Q000188:drug therapy* / Q000473:pathology / Q000601:surgery*; D006801:Humans; D066298:In Vitro Techniques; D017063:Outcome Assessment, Health Care; D015607:Stents; D013997:Time Factors; D014753:Vinyl Compounds / Q000008:administration & dosage / Q000627:therapeutic use
chemical_list: D000893:Anti-Inflammatory Agents; D003692:Delayed-Action Preparations; D014753:Vinyl Compounds; C057352:ethyl vinyl acetate; D003907:Dexamethasone