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Transcript

Objectives;

Associated Anomalies;

Pathological Anatomy ;

-Bat ear epidemiology

-Pathogenic anatomy of bat ear

-Management

-Surgery indications and contraindications

-Surgical approaches

-Post-Op complications

-Normal anatomy of the external ear

-Aesthetic considerations

-Embryology

-Some of the congenital external ear anomalies

-Syndromes associated

-CHARGE syndrome

-Down syndrome

-Alcohol fetal syndrome

-DiGeorge syndrome

-Renal Anomalies ( When to look for it ?

-Deafness

A. Underdeveloped antihelical fold: There is effacement with poor definition of the antihelical fold, such that the conchal concavity is in continuity with the fossa of the helix.

B. Overdeveloped concha: There is excessive height of the conchal wall. The concha is deeply cupped.

C. Increased conchoscaphal angle: The angle is greater than 90 degrees.

References;

Epidemiology ;

-Grabb Smiths Plastic textbook

-Current therapy in Plastics

-@Medscape Otoplasty topic

-@UpToDate Congenital Ear Anomaly topic

-

Management ;

-5% of whole pop

-59% have family history ( AD )

-Both genders equally affected

-Mostly affect right ear

Non-Surgical

Surgical

Indications

Contraindications

When ?

Surgical Approaches

According to the type of anatomical defect

Over developed conchoa

Furnas

Underdeveloped Helical fold

Suture-less technique

Morestin

Compound technique

Luckett procedure

Mustard Technique;

Similar to the Furnas technique, but a full-thickness ellipse of cartilage is also excised from the base of the excessive conchal bowl to decrease its excessive height.

Suture Only

Stenstrom

Anterior Scoring

Anatomy and Aesthetic Considerations

Post Op Complications;

Some of Congenital external ear Anomalies

-Incomplete correction

-Telephone ear deformity

-Over-correction

-Hematoma or seroma

-Chondritis

-Suture bridging

-Hypertrophic scar or kheloid

-Contour irregularity and sharp edges

-Assymetry

-P

-Recurrence

Embryology

The ear develops from six auricular hillocks or swellings during the 6th week of gestation:

A. The first branchial arch (mandibular arch) gives rise to the 1st, 2nd, and 3rd hillocks.

B. The second branchial arch (hyoid arch) gives rise to the 4th, 5th, and 6th hillocks.

Bat Ear Deformity

Done by; Dr.Isra Ali

Supervised by; Prof.M Hassan

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