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Comparing eye pupil size and pain scale for checking pain after spinal anaesthesia

Comparative evaluation of visual analogue scale and pupillary diameter for postoperative pain assessment following spinal anaesthesia a prospective observational study - NIL

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2025/10/095935
Enrollment
90
Registered
2025-10-13
Start date
Unknown
Completion date
Unknown
Last updated
2025-11-17

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

Conditions

Health Condition 1: M00-M99- Diseases of the musculoskeletal system and connective tissue

Interventions

Intervention1: Nil: Nil Intervention2: Nil: Nil

Sponsors

Dr Aravindh S
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Patients aged between 18 and 65 years of either sex. Patients scheduled to undergo lower abdominal surgical procedures under Spinal anaesthesia.

Exclusion criteria

Exclusion criteria: 1. Patients receiving general anaesthesia /epidural analgesia. 2. Patients with ocular conditions affecting the iris, cornea, or retina. 3. Patients with psychiatric disorders or an inability to understand or use the Visual Analogue Scale (VAS) for pain assessment. 4. Patients who received Drugs that can alter pupillary diameter like Anticholinergic agents: Atropine, Glycopyrrolate, Scopolamine Sympathomimetic agents: Epinephrine, phenylephrine, ephedrine. 5. Pregnant patients

Design outcomes

Primary

MeasureTime frame
Correlation between pupillary diameter and Visual Analogue Scale (VAS) scores for postoperative pain assessment at 4, 6, 8, 12, and 24 hours after spinal anaesthesiaTimepoint: Assessed at 4 hours, 6 hours, 8 hours, 12 hours , and 24 hours after spinal anaesthesia

Secondary

MeasureTime frame
Association of haemodynamic parameters (heart rate, blood pressure) with changes in pupillary diameter and VAS scores at the same postoperative time points.Timepoint: At 4, 6, 8, 12, and 24 hours after spinal anaesthesia

Countries

India

Contacts

Public ContactDr Aravindh S

Sri Venkateshwaraa Medical College Hospital and Research Centre

drkrishnaprabu@gmail.com9943770977

Outcome results

None listed

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