What is Transmastoid approach?

What is Transmastoid approach?

The transmastoid approach can be used to directly or indirectly isolate a bony defect of the superior canal. The main advantages of a TM approach includes (1) avoidance of a more invasive craniotomy, (2) lower risk of CSF leak, and (3) no brain retraction.

How long does SSCD surgery take?

Duke’s Division of Head and Neck Surgery & Communication Sciences has adopted a new technique as its routine approach to repairing the skull base disorder superior semicircular canal dehiscence syndrome (SSCD): a one-hour procedure in which the surgeon accesses the area with the dehiscence from behind the patient’s ear …

How long does it take to recover from Scds surgery?

For either transmastoid or middle fossa (MF) approach to repair SCD, I tell patients to expect a recovery period of about 6 weeks. For the MF approach, the initial postoperative recovery is a little more involved because of the added recovery from a craniotomy in addition to the inner ear work.

What is middle fossa craniotomy?

Craniotomy for the middle fossa approach. (A) The skin incision and temporalis muscle have been retracted with fishhooks to expose the temporalis squama and the root of the zygomatic arch. (B) The craniotomy is approximately a 3.5-cm square.

What causes Scds?

SCDS is a rare condition caused by an abnormal thinness or incomplete closure of one of the bony canals in the inner ear. The problem can cause hearing loss, sound distortion and balance problems triggered by loud noises or intracranial pressure caused by sneezing or coughing.

What is semicircular canal dehiscence?

Canal dehiscence refers to an opening (dehiscence) in the bone that covers one of the semicircular canals of the inner ear. It most commonly occurs in the superior semicircular canal of the ear. It can result in symptoms that affect a person’s balance and hearing.

Does SSCD get worse?

The symptoms of SSCD can get worse when a patient experiences extended episodes of coughing, sneezing or blowing of the nose. Sometimes hearing one’s own voice can also aggravate SSCD.

Is SSCD serious?

If you have SSCD, you have a hole or a very thin place in the bone in your ear that helps your body balance itself. It also can cause problems with the way sound comes into your ear. SSCD is a rare condition. Only 1%-2% of the population has been diagnosed with it.

How do you fix SCDS?

The primary treatment for SCDS is surgery to close the hole in the superior canal in a way that prevents further pressure transmission between the inner ear and brain cavity. The team uses general anesthesia so you will be asleep during the procedure.

Is SCDS hereditary?

Although the genetic basis of SCD is not known, Hildebrand et al9 proposed that SCD may be present in other patients with DFNA9 mutations (DFNA9 mutations lead to progressive hearing loss and vestibular impairment).

Which part of the brain occupies the middle cranial fossa?

pituitary gland
The middle cranial fossa consists of a central portion, which contains the pituitary gland, and two lateral portions, which accommodate the temporal lobes of the brain. Both parts of the fossa are marked by numerous bony landmarks, which will be discussed below.

What is posterior fossa?

The posterior fossa is a small space in the skull, found near the brainstem and cerebellum. The cerebellum is the part of the brain responsible for balance and coordinated movements. The brainstem is responsible for controlling vital body functions, such as breathing.