ONC: Optic Nerve Course Variants in Nepali Population

• Sponsor: Grande International Hospital, Nepal (Other)
• Overall Status: Completed
• CT.gov ID: NCT06077929
• Collaborator: (none)
• Enrollment: 367
• Location: 1
• Actual Duration (Months): 16.9
• Patients Per Site Per Month: 21.7

Study Details

Study Description

Brief Summary

A retrospective study was conducted on 367 patients. CT PNS and head of the patients were evaluated for type of course of optic nerve according to DeLano's Classification.

Condition or Disease	Intervention/Treatment	Phase
Optic Nerve	Other: No intervention done

Detailed Description

A retrospective study was conducted on 367 patients aged 13 years and above. Four investigators, each with 2 to 6 years of experience in the field of radiology, evaluated computed tomography scans of the paranasal sinuses and the head of these patients. The optic nerves were classified into four types based on DeLano's classification, and their respective prevalence rates were determined. Additionally, the prevalence of optic nerve dehiscence and pneumatization of the anterior clinoid process was assessed.

Study Design

• Study Type: Observational [Patient Registry]
• Actual Enrollment: 367 participants
• Observational Model: Case-Only
• Time Perspective: Cross-Sectional
• Official Title: Evaluation of Variations of Optic Nerve Course in Relation to Posterior Paranasal Sinuses in MDCT at a Tertiary Care Center of Nepal
• Actual Study Start Date: Jan 1, 2022
• Actual Primary Completion Date: May 30, 2023
• Actual Study Completion Date: May 30, 2023

Arms and Interventions

Arm	Intervention/Treatment
Rhinosinusitis Patients with rhinosinusitis	Other: No intervention done; No interventions done

Outcome Measures

Primary Outcome Measures

1. Prevalence of different types of optic nerve course [1.5 years]

   Type 4 course is more prevalent than type 3 course

Eligibility Criteria

Criteria

• Ages Eligible for Study: 13 Years to 94 Years
• Sexes Eligible for Study: All
• Accepts Healthy Volunteers: Yes

Inclusion Criteria: Patients undergoing NCCT PNS and Head for chronic rhinosinusitis, headache and vertigo

Exclusion Criteria:

1. Patient less than 13 years age

2. Patients with recent trauma

3. Patient with large mass/ extensive polyposis

Contacts and Locations

Locations

	Site	City	State	Country	Postal Code
1	Prajwal Dahal	Kathmandu	Bagmati	Nepal	Nepal

Sponsors and Collaborators

• Grande International Hospital, Nepal

Investigators

• Principal Investigator: PRAJWAL DAHAL, MD, Grande International Hospital

Study Documents (Full-Text)

• Study Protocol - Jul 30, 2023

More Information

Publications

None provided.

• Responsible Party: PRAJWAL DAHAL, Principal Investigator, Grande International Hospital, Nepal
• ClinicalTrials.gov Identifier: NCT06077929
• Other Study ID Numbers: Reg No: 16/2023
• First Posted: Oct 11, 2023
• Last Update Posted: Oct 18, 2023
• Last Verified: Oct 1, 2023

• Studies a U.S. FDA-regulated Drug Product: No
• Studies a U.S. FDA-regulated Device Product: No
• Keywords provided by PRAJWAL DAHAL, Principal Investigator, Grande International Hospital, Nepal: Optic Nerve Course; De Lano's Classification; Anterior Clinoid Process Pneumatization

Study Results

No Results Posted as of Oct 18, 2023