Biomedical subjects

Nabil I Elsahy

Publications and source records attributed to Nabil I Elsahy.

6 recordsLinked to original sources

PubMed2002

Acquired ear defects.

Trauma and tumor are the causes of acquired ear defects that surgeons are frequently called on to treat. Trauma may result in hematoma or laceration of the ear. In addition, both trauma and tumor excision may result in skin or cartilage loss. Prevention of recurrence depends on complete excision of the tumor m both lateral margins and depth. Tumors of the ear (as well as the nose) are often incompletely excised because of the difficulty in reconstruction. The absence of subcutaneous tissue in the ear allows fixation and perichondrial involvement to occur early. The tumor affinity for perichondrium usually prohibits penetration into the cartilage itself.

Ear Deformities, Acquired↗

PubMed2002

Reconstruction of the ear after skin and perichondrium loss.

Because no two auricular defects are exactly the same, the choice of a suitable method for ear reconstruction is essential. Location and size of the defect influence the choice of technique needed for reconstruction. The method of reconstruction varies if there is skin loss, skin and perichondrium loss, or full-thickness loss. The skin surrounding the defect should be examined to determined if it is lacerated, burned, or scarred to decide whether or not it can be used in reconstruction. A plan of treatment should be decided and explained fully to the patient. A small area of skin loss can be closed by undermining of the edges and direct closure. If this cannot be performed because the defect is too large, the perichondrium is then examined to decide whether or not it is intact.

Ear Neoplasms↗

PubMed2002

Reconstruction of the ear after skin and cartilage loss.

Small defects (less than 1.5 cm) of the helix or antihelix of the middle third of the ear can be converted to a wedge-shaped excision and primary repair performed. In some cases, small Burrow's triangles on either side of the wedge must be exised from the scapha or antihelix to allow for closure without distortion or cupping. In addition, the resection may go across the conchal rim and include the bowl to allow for rotation without deformity.

Cartilage↗

PubMed2002

Ear replantation.

Most trauma to the ear is minimal and can heal with excellent results if meticulous repair is performed immediately after the accident. Amputation of the ear, on the other hand, is a very serious problem and can lead to severe deformity. Many reattachment and reconstruction techniques are described; however, reattachment of the severed ear continues to be a major challenge that can lead to severe deformity. To date, only a few successful cases of microvascular ear replantation have been reported. Bone-anchored prosthesis or plastic reconstruction may be recommended if the patient refuses surgery, in patients with multiple health problems, or in the case of a reconstructive attempt that has failed and the patient prefers to wear a prosthesis for the rest of his or her life.

Ear, External↗

PubMed2002

The constricted ear.

The constricted ear may be described best as a pursestring closure of the ear. The deformity may include lidding of the upper pole with downward folding, protrusion of the concha, decreased vertical height, and low ear position relative to the face. The goals of surgical correction should include obtaining symmetry and correcting the intra-auricular anatomy. The degree of intervention is based on the severity of the deformity and may range from simple repositioning, soft tissue rearrangement, or manipulation of the cartilage. Multiple surgical techniques are described.

Child↗

PubMed2002

Cryptotia: principles and management.

Adequate treatment of the cryptotic ear must address both recreation of the upper pole and correction of the vertical height. The degree of soft tissue manipulation ia dictated by the severity of the deformity. Often this must be combined with repositioning or reconstruction of the cartilaginous skeleton.

Child↗