Tympanoplasty

A tympanoplasty is a type of ear surgery intended to repair a hole in the tympanic membrane or eardrum, a vital part of the ear. The eardrum reacts to soundwaves and sends vibrations into the inner ear for processing. Injuries of the eardrum may affect hearing, so if a hole or tear does not repair on its own, patients usually turn to surgery. In a tympanoplasty, a surgeon patches the perforated eardrum and affixes the patch in place. Patients should follow the surgeon’s guidelines and take prescribed medications in the post-operation period, and take extra precautions to avoid disturbing the eardrum as it heals.

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Overview

The ear is a complex organ that gives humans their sense of hearing and contributes to their sense of balance. The ear consists of many parts, broadly categorized as the outer ear, middle ear, and inner ear. Hearing begins when external soundwaves reach the outer ear. These soundwaves strike the tympanic membrane and cause it to vibrate. This vibration then proceeds to the middle ear, where three small bones amplify the vibration and move it further into the ear. The structures of the inner ear then receive the vibration and convert it into electrical pulses. These pulses then proceed to the brain, which interprets them and informs the person of the sound that has occurred.

The tympanic membrane is a layer of tissue that vibrates when it encounters sound waves. This structure is popularly known as the eardrum because of its similarity to the thin, skin-like top of a drum that vibrates when struck. Despite being extremely important, the eardrum is a fragile structure prone to injury. Many people injure their eardrums accidentally while cleaning their ears too aggressively. Ear infections and growths, along with some surgeries and implants, may also damage eardrums. Eardrum injuries are often seen among children.

In most cases, a perforated eardrum can fix itself, though this process may take years. Especially in cases involving young children, doctors often prefer to give self-healing a chance before attempting a surgical repair. However, a damaged eardrum can cause hearing damage and may also allow water to run into the middle ear. If the damage does not appear to be resolving itself, doctors may opt for surgery. The most common surgery for an eardrum perforation is tympanoplasty.

Ear, nose, and throat specialists perform tympanoplasty procedures, which generally last from around 30 minutes to two hours. Before the procedure, the surgeon anesthetizes the patient. Then the surgeon uses fine tools to graft, or patch, the perforation in the eardrum. The surgeon may use a synthetic material for the patch, or may take a small amount of tissue from near the patient’s ear. The surgeon affixes the graft using a packing material that will gradually disappear, leaving the patch in place.

During the post-operation period, the patient may experience ear pain or mild bleeding or leakage. Patients should avoid touching or getting water in their ears and use any prescribed medicines or ear drops. In addition, patients should be careful about sneezing or blowing their noses, as doing so may upset the air pressure in the ears and undo the patch. The packing material should dissolve in a matter of weeks. The surgeon may remove any residual material during follow-up visits.

Bibliography

“Anatomy and Physiology of the Ear.” Stanford Children’s Health, 2021, www.stanfordchildrens.org/en/topic/default?id=anatomy-and-physiology-of-the-ear-90-P02025. Accessed 3 Feb. 2021.

Barth, Patrick C. “Eardrum Injuries.” Kids Health / Nemours Foundation, Sept. 2019, kidshealth.org/en/parents/eardrums.html. Accessed 3 Feb. 2021.

Jackler, Robert K. and Christine Gralapp. Ear Surgery Illustrated: A Comprehensive Atlas of Otologic Microsurgical Techniques. Thieme, 2019.

Kacker, Ashutosh, Daphne Pierce-Smith, and Marianne Fraser. “Anatomy and Physiology of the Ear.” University of Rochester Medical Center, 2021, www.urmc.rochester.edu/encyclopedia/content.aspx?ContentTypeID=90&ContentID=P02025. Accessed 3 Feb. 2021.

Parkes, William J. “Tympanoplasty.” Kids Health / Nemours Foundation, July 2019, kidshealth.org/en/parents/tympanoplasty.html. Accessed 3 Feb. 2021.

“Tympanoplasty.” Dallas Ear Institute, www.dallasear.com/services-tympanoplasty.html. Accessed 3 Feb. 2021.

“Tympanoplasty in Children – Ear Drum Repair.” Children’s Minnesota, 2020, www.childrensmn.org/services/care-specialties-departments/ear-nose-throat-ent-facial-plastic-surgery/conditions-and-services/tympanoplasty/. Accessed 3 Feb. 2021.

“Eardrum Perforation.” Marshfield Clinic Health System, 2021, www.marshfieldclinic.org/specialties/ent/eardrum-perforation. Accessed 3 Feb. 2021.