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Does the speed of eyes" response to light stimuli provide information on the pressure inside the skull bone?" A study conducted in patients having raised pressure inside the skull

Changes in pupillometry based pupillary reactivity indices following cerebrospinal fluid diversion procedure in adult obstructive hydrocephalus patients presenting with raised intracranial pressure - NIL

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2024/10/074632
Enrollment
140
Registered
2024-10-03
Start date
Unknown
Completion date
Unknown
Last updated
2024-10-14

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

Conditions

Health Condition 1: G911- Obstructive hydrocephalus

Interventions

Control Intervention1: Nil: Nil

Sponsors

National Institute of Mental Health and Neuro sciencesNIMHANS
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: patients undergoing VP shunt procedures for posterior fossa/sellar lesions

Exclusion criteria

Exclusion criteria: 1.Patients undergoing shunt revisions 2.ophthalmic injuries /cataract/operated for cataract 3.Patients having second and third cranial nerve involvement

Design outcomes

Primary

MeasureTime frame
To compare Qpi score before and 24-48 hrs after VP shunt procedure among adult patients with obstructive hydrocephalusTimepoint: Before procedure and 24-48hrs after procedure—

Secondary

MeasureTime frame
To compare baseline Qpi and optic nerve sheath diameterTimepoint: Before procedure;To compare constriction velocity before and 24-48hr after VP shuntTimepoint: Before procedure and 24-48 hours after procedure;To compare Qpi score ,latency and constriction velocity with opening csf pressureTimepoint: preop and Intraoperative—

Countries

India

Contacts

Public ContactMadhu H T

National Institute of Mental Health and Neuro sciences(NIMHANS), Bengaluru

mkrs1974@gmail.com9686997450

Outcome results

None listed

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