A study on the correlation and predictive value of preoperative pupillary functional status and hypotension after induction.

Status

Recruiting

Phases

Early Phase 1

Study type

Observational

Source

ChiCTR

Registry ID

ChiCTR2300079068

Enrollment

Unknown

Registered

2023-12-25

Start date

2024-01-01

Completion date

Unknown

Last updated

2024-01-08

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

Conditions

post-induction hypotension

Interventions

Hypotension group:None

None-hypotension group:None

Eligibility

Sex/Gender

All

Age

20 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1. ASA grade I-III; 2. Thoracoscopic pneumonectomy to be performed.

Exclusion criteria

Exclusion criteria: 1. With eye diseases, eye surgery; 2. Neuromuscular dysfunction, diabetes mellitus, thyroid dysfunction; 3. Pupillary deformity, use of drugs affecting pupil size, use of alpha or beta blockers; 4. Scheduled surgery duration > 120 minutes; 5. Scheduled to undergo neurosurgery.

Design outcomes

Primary

Measure	Time frame
maximum pupil diameter (lnit);minimum pupil diameter (End);percentage change (Delta);latency (LAT);mean contraction velocity (ACV);maximum contraction velocity (MCV);dilation velocity (ADV);time to 75% recovery (T75%);	—

Secondary

Measure	Time frame
There is no post-induction hypotension;	—

Countries

China

Contacts

Public ContactShi Cunxian

Yuhuangding Hospital of Qingdao University

shicunxian@163.com+86 135 6252 2206

Outcome results

None listed

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