The Effect of Head Position on the Optik Nerve Sheath Diameter in Patients During Thyroid Surgery

NCT07298187 | Completed

• 1 other identifier: 1274724
• Study Type: observational
• Target: 49
• Locations: 1 country
• Sites: 1

Brief Summary

THE EFFECT OF HEAD POSİTİON ON THE OPTİC NERVE SHEATH DİAMETER İN PATİENTS DURİNG THYROİD SURGERY

Conditions

Thyroid Cancer; Thyroid and Parathyroid Surgery; Thyroid Adenoma

Outcome Measures

Primary Outcomes (1)

• OPTİC NERVE SHEATH DİAMETER

  CHANGE İN OPTİC NERVE SHEATH DİAMETER MEASURED BY ULTRASOUND BEFORE AND AFTER POSİTİONİNG DURİNG THYROİDECTOMY

  INTRAOPERATİVE PERİOD(FROM İNDUCTİON TO THE END OF SURGERY)

Secondary Outcomes (1)

• POSTOPERATİVE HEADACHE SEVERİTY (VISUAL ANALOG SCALE)

  WİTHİN SEVEN DAYS AFTER SURGERY

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Probability Sample

Study Population

ISTANBUL UNIVERSITY-CERRAHPASA

You may qualify if:

• Patients aged between 18 and 65, with an ASA score between 1 and 2 according to the American Society of Anesthesiologists (ASA) physical status classification system
• whose surgery duration was expected to be less than 4 hours were included in our study.

You may not qualify if:

• liver failure
• kidney failure
• intracranial masses
• history of hydrocephalus,
• migraine
• chronic hypoxemia or hypercarbic lung disease
• additional heart disease
• hemodynamic insufficiency
• neurological and psychiatric diseases,
• glaucoma
• patients in whom ocular USG could not provide adequate images
• patients with pathological problems involving the eyelid and its surrounding area
• patients with diseases such as periorbital cellulitis
• patients with preoperative headache complaints
• patients with known diseases that could cause increased intracranial pressure

Sponsors & Collaborators

• Istanbul University - Cerrahpasa: lead

Study Sites (1)

Istanbul University Cerrahpasa

Istanbul, FATİH, 34000, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Thyroid Neoplasms; Thyroid Diseases

Condition Hierarchy (Ancestors)

Endocrine Gland Neoplasms; Neoplasms by Site; Neoplasms; Head and Neck Neoplasms; Endocrine System Diseases

Study Design

• Study Type: observational
• Observational Model: CASE ONLY
• Time Perspective: PROSPECTIVE
• Target Duration: 7 Days
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: RESEARCH ASSİSTANT DOCTOR

Study Record Dates

• First Submitted: December 9, 2025
• First Posted: December 23, 2025
• Study Start: April 1, 2025
• Primary Completion: September 30, 2025
• Study Completion: November 3, 2025
• Last Updated: December 23, 2025

Record last verified: 2025-12

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)