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Role of Ultrasound in Assessing the Rise in Intracranial Pressures in Patients Undergoing Lower Limb Surgery Under Tourniquet During Spinal Anesthesia

Mesurement Of Optic Nerve Sheath Diameter In Patients Undergoing Lower Limb Surgeries Under Tourniquet During Central Neuraxial Blockade. - NIL

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2024/07/071050
Enrollment
20
Registered
2024-07-23
Start date
Unknown
Completion date
Unknown
Last updated
2026-03-02

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

Conditions

Health Condition 1: O- Medical and Surgical

Interventions

Intervention1: To study the effect of tourniquet inflation and deflation on ONSD in patients undergoing lower limb surgeries during Central Neuraxial Blockade.: In this study, all patients will under

Sponsors

PT BD Sharma University Of Health Sciences PGIMS Rohtak Haryana
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Patients of American Society of Anesthesiologists (ASA) physical status I and II of either sex aged 18-65 yrs, scheduled for elective lower limb surgery under central neuraxial blockade will be included in the study.

Exclusion criteria

Exclusion criteria: Patients with presence of any one of the following will be excluded from the study 1. Refusal of consent 2. Patients having history of Cardiovascular dysfunction, Epilepsy or Pregnancy 3. Patients having history orbital trauma, optic nerve pathology, glaucoma. 4. Patient with increased ICP, coagulopathy and any contraindication to spinal anesthesia.

Design outcomes

Primary

MeasureTime frame
The primary objective will be to study variation in optic nerve sheath diameter (ONSD) following tourniquet inflation and deflation.Timepoint: 1. T0 - Baseline - before spinal anaesthesia 2. T1 - just after tourniquet inflation 3. T2 - just before tourniquet deflation 4. T3 - 5 minutes after tourniquet deflation 5. T4 - 10 minutes after tourniquet deflation—

Secondary

MeasureTime frame
1) Correlation of ONSD with hemodynamic parameters. 2) Correlation of ONSD with PaCO2 levels after tourniquet deflation. Timepoint: V0- Baseline vitals V1- Just after tourniquet inflation V2- Just before tourniquet deflation V3- 5 minutes after tourniquet deflation V4- 10 minutes after tourniquet deflation . Baseline paco2 before central neuraxial blockade and 5 minutes after tourniquet deflation.—

Countries

India

Contacts

Public ContactDr Abhishek Chahal

PT. B.D Sharma,PGIMS Rohtak,HARYANA INDIA

chahalabhi111@gmail.com9729766831

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Mar 14, 2026