This study aimed to compare the effect of adding HA versus PRP to endoscopic FGM in cases of small or medium-sized central TM perforation in the form of: 1. Evaluation of the graft uptake rate. 2. Evaluation and comparing audiological outcomes. 3. Finding out intraoperative and postoperative morbidity.
Tympanic membrane (TM) perforations result in recurrent middle ear infection and hearing loss. Both these hazards can be prevented by the reconstructive surgery of the tympanic membrane. Fat graft myringoplasty (FGM) has been reported as a suitable procedure to close long-standing TM perforations FGM is an efficient, safe and potentially fast method for TM perforation repairing with a success rate varies from 79% to 91%..Many researches was done to use supporting material in myringoplasty Saliba et al used hyaluronic acid fat graft myringoplasty \[HAFGM\] and results in a higher success rate than using FGM alone. El-Anwar et al proved that Topical autologous platelet-rich plasma(PRP) application during myringolpasty is safe, efficient and enhances healing of TM perforation PRP includes many autologous growth factors that have significant functions like cell proliferation, migration, and angiogenesis. Fibrin and fibronectin are essential proteins in PRP that provide the structural support needed for the cell migration, cell proliferation, and 3-dimensional growth of tissues. HA has been shown to play a role in cellular signaling, leukocyte growth and migration, Cell adhesion and biological remodeling and is mainly involved in tissue healing with a central role in modulating inflammatory responses also, Its absorption of water causes expansion in volume and formation of a viscoelastic gel which constitutes a favorable scaffold for tissue regeneration and remodeling .
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
60
general anesthesia. A single surgeon will perform all surgeries. * A small incision in the rim of ear lobule on the same side of the operated ear, a small piece of adipose tissue will be removed according to the experience of the surgeon. * Using 0 angulation endoscope visualization, the edges of the perforation will be refreshed and deepithelialized with a sharp Rosen's needle * sponge gel (Gelfoam) will pushed through TM perforation into the middle ear to support the graft and to avoid its medialization * the previously removed fat graft will be inserted through the perforation adjusted so most of the fat piece lying medial to the perforation and small part laterally in patients group A: 0.5 mL of HA vial will be injected directly over the fat graft and the TM remnant. After 5 minutes small gelfoam pieces soaked in 0.5 mL of HA vial will applied over the fat in patients group B PRPG was inserted into the external auditory canal on the outer face of the TM remnant and fat
graft taking
Endoscopic examination of TM: Graft will considered as successfully taken if there is no residual TM perforation after 3 months postoperativly.
Time frame: 3 months
Audiotympanogram
effect on hearing by using Audiotympanogram will be done three months post-operative
Time frame: 3 months
Otorrhea
presence or absence of otorrhea by history and ear examination
Time frame: 1 month
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