title: Hyaluronic Acid Fat Graft Myringoplasty Versus Autologous Platelet Rich Plasma.
abstract: BACKGROUND
  Hyaluronic acid fat graft myringoplasty (HAFGM) is an office-based technique for tympanic membrane perforation (TMP) treatment. It is simple, inexpensive, and performed under local anesthesia at the outpatient office department. We aimed to compare HAFGM technique to a recently described topical use of autologous platelet rich plasma myringoplasty (PRPM) in the repair of TMP. We also aimed to assess the hearing level improvement postoperatively.
  
  
  METHODS
  We conducted a prospective study in an adult tertiary care center between January 2015 and January 2016. Adult patients presenting with simple TMP were operated randomly using either HAFGM or PRPM under local anesthesia in an office-based setting. Perforations were classified into four grades. Success was considered when complete closure is achieved. Audiometric parameters were evaluated pre- and postoperatively.
  
  
  RESULTS
  We included 27 patients, of whom 16 were operated with HAFGM and 11 were operated with PRPM. Complete closure was achieved in 81.2% and 18.1%, respectively. Postoperatively, no worsening of bone conduction threshold was noted. The study was abandoned due to the low success rate in patients with PRPM. The pure tone audiometry was improved postoperatively in patients with closed tympanic membrane.
  
  
  CONCLUSIONS
  The study was aborted because of the unsatisfactory obtained results using PRPM. It confirms once again the beneficial effect of hyaluronic acid in the healing process when added to fat graft myringoplasty. Furthermore, it requires no hospitalization.
authors.affiliation: Department of Surgery, Division of Otorhinolaryngology, Head & Neck Surgery, Montreal University Hospital Center (CHUM), University of Montreal, Montreal, QC, Canada.
authors.forename: Salman F
authors.initials: SF
authors.lastname: Alhabib
authors.affiliation: Department of Surgery, Division of Otorhinolaryngology, Head & Neck Surgery, Montreal University Hospital Center (CHUM), University of Montreal, Montreal, QC, Canada.
authors.forename: Issam
authors.initials: I
authors.lastname: Saliba
keywords: Autologous platelet rich plasma; HAFGM; Hearing loss; Myringoplasty; Tympanic membrane perforations