Tumors within sella turcica and small adenomas of the pituitary glands can be removed through

ESIC Nursing Officer - 2019 (Shift-2)

Medical Surgical Nursing

Easy

Appeared in: ESIC Nursing Officer - 2019 (Shift-2)

Explanation

The transsphenoidal approach is the standard surgical procedure for removing tumors within the sella turcica, such as pituitary adenomas.
This technique involves accessing the pituitary gland through the nasal cavity and the sphenoid sinus, which lies directly beneath the sella turcica.
It is a minimally invasive approach that avoids a traditional craniotomy, leading to less trauma, reduced risk of hemorrhage, and a quicker recovery period.

Option A: This approach is used for surgery on the posterior fossa, which contains the cerebellum and brainstem, not the pituitary gland.
Option C: This involves a craniotomy above the tentorium to access the cerebral hemispheres. It is generally used for large, complex tumors and not the preferred method for small pituitary adenomas confined to the sella.
Option D: This is a general term for the surgical removal of a portion of the skull, typically to relieve life-threatening intracranial pressure. It is a procedure, not a specific, planned approach to a particular brain region like the sella turcica.

Visual 1: Diagram: A sagittal view of the head showing the path of the transsphenoidal surgical approach through the nasal cavity and sphenoid sinus to reach the pituitary gland in the sella turcica.
Visual 2: Table: Comparison of surgical approaches (Supratentorial, Infratentorial, Transsphenoidal) detailing the surgical site and primary indications for each.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Surgical approaches for pituitary tumors as background academic context rather than a clinical decision trigger.
Post-operative nursing care after transsphenoidal surgery is critical and focuses on monitoring for complications like CSF leakage, diabetes insipidus (DI), and Syndrome of Inappropriate Antidiuretic Hormone (SIADH).
A key nursing assessment is checking for clear nasal drainage that tests positive for glucose (or shows a 'halo' sign on gauze), which indicates a CSF leak and requires immediate notification of the surgeon.
What if? If a patient post-transsphenoidal surgery develops a high urine output (e.g., greater than 200 mL/hr) with low specific gravity, the nurse should suspect Diabetes Insipidus (DI), a potential complication from pituitary manipulation, and prepare to administer vasopressin as ordered.

How to Approach the Question

First, identify the key anatomical location mentioned in the question: 'sella turcica' and 'pituitary glands'.
Next, review the options, which are different types of neurosurgical approaches.
Recall or deduce the anatomical relationship between the nasal sinuses and the sella turcica. The sphenoid sinus is directly anterior and inferior to the pituitary's location.
Match the most direct and logical surgical route to the target location. The term 'transsphenoidal' literally means 'through the sphenoid bone/sinus,' making it the most appropriate choice.
Eliminate other options based on their anatomical targets: 'infratentorial' for the posterior fossa (cerebellum/brainstem) and 'supratentorial' for the main cerebral hemispheres.

Concept Tested & Keywords

QDY4e12DELj73lHFmY-l3L