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Regenerative treatment for tympanic membrane perforation.

Shin-Ichi Kanemaru¹, Hiroo Umeda, Yoshiharu Kitani

¹Department of Otolaryngology-Head and Neck Surgery, Medical Research Institute, Kitano Hospital, Osaka, Japan. kanemaru@ent.kuhp.kyoto-u.ac.jp

Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [And] European Academy of Otology and Neurotology

|September 8, 2011

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This study shows that a new tissue engineering therapy using basic fibroblast growth factor (b-FGF) effectively regenerates tympanic membrane perforations (TMPs) without surgery. This minimally invasive treatment offers a safe and cost-effective outpatient solution for TMP repair.

Area of Science:

Regenerative Medicine
Tissue Engineering
Otolaryngology

Background:

Large tympanic membrane perforations (TMPs) often require surgical intervention.
Conventional surgical therapies for TMP can be invasive and costly.

Purpose of the Study:

To develop and evaluate a novel tissue engineering therapy for large TMPs.
To assess the efficacy of basic fibroblast growth factor (b-FGF) in promoting TM regeneration without surgery.

Main Methods:

A randomized controlled trial was conducted with 63 outpatients with chronic TMPs.
Patients were assigned to receive treatment with gelatin sponge, fibrin glue, and b-FGF, or a control group with saline.
Treatment involved applying the prepared materials to the perforation and was repeated up to four times if necessary.

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Main Results:

A high closure rate of over 98.1% was observed in the b-FGF group, compared to 10% in the control group.
Successful TM repair led to improved hearing levels in patients.
No serious adverse events or sequelae were reported.

Conclusions:

A combination of gelatin sponge, b-FGF, and fibrin glue facilitates TM regeneration, offering an alternative to conventional surgery.
This regenerative therapy is a safe, cost-effective, and minimally invasive outpatient treatment for TMPs.