Optic Nerve Course Variants in Nepali Population (ONC)

November 6, 2024 updated by: PRAJWAL DAHAL, Grande International Hospital, Nepal

Evaluation of Variations of Optic Nerve Course in Relation to Posterior Paranasal Sinuses in MDCT at a Tertiary Care Center of Nepal

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.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

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 Type

Observational

Enrollment (Actual)

367

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Nepal
    • Bagmati
      • Kathmandu, Bagmati, Nepal, Nepal
        • Prajwal Dahal

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Probability Sample

Study Population

Patient of age 13 years and more undergoing NCCT PNS and Head for chronic rhinosinusitis , headache and vertigo

Description

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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Rhinosinusitis
Patients with rhinosinusitis
Other: No intervention done
No interventions done

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Prevalence of different types of optic nerve course
Time Frame: 1.5 years
Type 4 course is more prevalent than type 3 course
1.5 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Grande International Hospital, Nepal

Investigators

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

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 1, 2022

Primary Completion (Actual)

May 30, 2023

Study Completion (Actual)

May 30, 2023

Study Registration Dates

First Submitted

October 5, 2023

First Submitted That Met QC Criteria

October 5, 2023

First Posted (Actual)

October 11, 2023

Study Record Updates

Last Update Posted (Estimated)

November 7, 2024

Last Update Submitted That Met QC Criteria

November 6, 2024

Last Verified

October 1, 2023

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • Reg No: 16/2023

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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