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Spinal anaesthesia and its effects on optic nerve sheath diameter in orthopaedic surgery

The effects of spinal Anaesthesia and Tourniquet application on Ultrasound measured Optic Nerve Sheath Diameter in patients undergoing orthopaedic lower limb surgeries under subarachnoid block a prospective observational study - NIL

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2025/09/094548
Enrollment
50
Registered
2025-09-10
Start date
Unknown
Completion date
Unknown
Last updated
2025-09-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Condition 1: - Health Condition 2: O- Medical and Surgical

Interventions

None listed

Sponsors

Dr Chhaya Singour
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Patients between the age group 18- 60 years. ASA class I-ll .BMI 18.5-29.9kg/m2.Mallampati class I or II

Exclusion criteria

Exclusion criteria: Mallampati class III or IV ,ASA IIII or IV or emergency status.if the patient is not willing to give consent for subarachnoid block.having contraindications for subarachnoid block i.e coagulopathy,infection.coexisting injuries.orbital trauma ,eye pathology

Design outcomes

Primary

MeasureTime frame
Comparison of ONSD amongst tourniquet inflation and deflation from the baseline values.Timepoint: 10th minute after tourniquet inflation;30th minute after torniquet inflation and after five minutes of torniquet deflation—

Secondary

MeasureTime frame
Comparison of optic nerve sheath diameter after spinal anaesthesia & torniquet inflation & deflation from the baseline value. Timepoint: before spinal anaesthesia, after spinal anaesthesia with adequate motor blockade,10th minute after tourniquet inflation,30th minute after torniquet inflation,and after five minutes of torniquet deflation.—

Countries

India

Contacts

Public ContactDr Nanish Sharma

Dr.Rajendra Prasad Medical College Tanda Kangra

shelkbj@yahoo.com9418113786

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026