000 03020nam a22003977a 4500
008 171017s20172017 xxu||||| |||| 00| 0 eng d
022 _a0165-5876
040 _aOvid MEDLINE(R)
099 _a28964295
245 _a"On-command" dissolvable tympanostomy tube in the chinchilla model: A proof of concept.
251 _aInternational Journal of Pediatric Otorhinolaryngology. 101:20-24, 2017 Oct
252 _aInt J Pediatr Otorhinolaryngol. 101:20-24, 2017 Oct
253 _aInternational journal of pediatric otorhinolaryngology
260 _c2017
260 _fFY2018
266 _d2017-10-17
520 _aCONCLUSION: Our PBM tubes dissolve "on-command" in a chinchilla model when exposed to treatment with a benign chemical. Dissolvable "on-command" tympanostomy tubes may reduce significant complications related to pediatric tympanostomy tube use. Copyright (c) 2017 Elsevier B.V. All rights reserved.
520 _aMETHODS: Prototype tympanostomy tubes were fabricated from poly(butyl methacrylate-co-(2-dimethylaminoethyl) methacrylate-co- methyl methacrylate) (PBM). "In vitro" dissolution studies were performed with applications of the benign chemical, hydrogen peroxide (HP). PBM tubes were placed into ten chinchilla tympanic membranes matched with standard plastic tubes placed into the contralateral side. All 20 tubes were exposed to HP for 21 days with serial endoscopic examinations. In vitro PBM tubes were weighed before and after interventions and compared to control tubes. In vivo photo documentation was used to show progression of dissolution and histologic slides were obtained to show the effect of the PBM on surrounding tissues.
520 _aOBJECTIVES: To prove the concept that a dissolvable "on-command" tympanostomy tube placed into the tympanic membrane of a chinchilla can dissolve when a benign solution is applied and result in a well healed tympanic membrane without histologic evidence of injury.
520 _aRESULTS: Compared to control tubes, all those exposed to hydrogen peroxide had a statistically significant reduction in weight (p < 0.01). After placement into the tympanic membrane of chinchillas, all PBM tubes dissolved within 21 days of hydrogen peroxide treatment leaving behind histologically normal, intact tympanic membranes.
520 _aSTUDY DESIGN: Prospective Randomized Single-Subject Controlled Trial.
546 _aEnglish
650 _a*Hydrogen Peroxide/pd [Pharmacology]
650 _a*Middle Ear Ventilation/mt [Methods]
650 _a*Tympanic Membrane/su [Surgery]
650 _aAnimals
650 _aChinchilla
650 _aProspective Studies
650 _aProstheses and Implants
651 _aMedStar Health Research Institute
657 _aJournal Article
700 _aJenkins, Audrey
790 _aCleary K, Dumont M, Jenkins A, Mai JP, Reilly BK, Wiedermann JP
856 _uhttps://dx.doi.org/10.1016/j.ijporl.2017.07.017
_zhttps://dx.doi.org/10.1016/j.ijporl.2017.07.017
942 _cART
_dArticle
999 _c2783
_d2783