A study of the correlation and predictive value of preoperative pupil functional status with ward and admission blood pressure variability

Status

Recruiting

Phases

Early Phase 1

Study type

Observational

Source

ChiCTR

Registry ID

ChiCTR2400081898

Enrollment

Unknown

Registered

2024-03-14

Start date

2024-03-15

Completion date

Unknown

Last updated

2024-03-18

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

Conditions

Pupil parameters predict blood pressure variability

Interventions

Blood pressure variability group:none

Eligibility

Sex/Gender

All

Age

20 Years to 85 Years

Inclusion criteria

Inclusion criteria: 1. Age = 65 years 2. ASA grade I-III 3. elective thoracoscopic pneumonectomy.

Exclusion criteria

Exclusion criteria: 1. Have eye disease, eye surgery 2. Neuromuscular dysfunction 3. Diabetes, thyroid dysfunction 4. Pupil deformity 5. Use of drugs that affect pupil size, use of alpha or beta blockers 6. Scheduled surgery duration >120 minutes 7. Scheduled to undergo neurosurgery

Design outcomes

Primary

Measure	Time frame
Maximum pupil diameter;Minimum pupil diameter;Percentage of pupil change;Incubation period;Average shrinkage speed;Maximum shrinkage speed;	—

Secondary

Measure	Time frame
Expansion speed;Recover 75% of the time;	—

Countries

China

Contacts

Public ContactXie Yonggang

Yuhuangding Hospital of Qingdao University

xyglzxrx@sina.cn+86 152 7552 6999

Outcome results

None listed

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