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Transsphenoidal Hypophesectomy
neurosurgery procedures
15
Medical
Not Applicable
04/07/2020

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Cards

Term
What is Transsphenoidal Hypophysectomy?
Definition
A surgical procedure most commonly used to remove a tumor of the pituitary gland, through the sphenoid sinus.
Term
In what bony structure does the pituitary gland sit?
Definition
Sella turcica of the sphenoid bone
Term
The pituitary gland is connected to the ___________ by a stalk called the infundibulum.
Definition
Hypothalamus
Term
Benign tumors of the Pituitary gland are responsible for what?
Definition
Overproduction of specific pituitary hormones
Term
What surgical approach is indicated if the tumor is large, pressing against the optic nerves?
Definition
Craniotomy
Term
What surgical approach is indicated for smaller tumors of the pituitary gland?
Definition
Transsphenoidal resection
Term
What are the 2 types of surgeons that may both be working on these cases?
Definition
ENT surgeon and Neurosurgeon
Term
Where is the entry point for access to the Sella Turcica?
Definition
An incision in the upper gumline, under the lip or through the nasal cavity.
Term
What instruments are used to punch through the Sella Turcica?
Definition
Kerrison rongeur and osteotome
Term
Medications used for hemostasis and sites of injection
Definition
Lidocaine with epinephrine. Cocaine may be used in nasal mucosa. Injection sites: nasal mucosa and gingiva
Term
Instruments for tumor removal
Definition
Pituitary curette, dissector, enucleator and suction
Term
What are the diagnostic tests for this procedure?
Definition

Endocrine function test

MRI

Term
The Pituitary gland is about the size of .....
Definition
A grape
Term
What position is the patient in for this procedure?
Definition
Semi-Fowler's
Term
All nasal instruments are considered _________ and should be kept separate from sterile instruments.
Definition
Contaminated
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