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Evaluation of the effect of Trendelenburg position on intracranial pressure in patients undergoing laparoscopic pneumoperitoneum surgery by ultrasonic measurement of optic nerve sheath diameter: a prospective observational study

Evaluation of the effect of Trendelenburg position on intracranial pressure in patients undergoing laparoscopic pneumoperitoneum surgery by ultrasonic measurement of optic nerve sheath diameter: a prospective observational study

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2200065603
Enrollment
Unknown
Registered
2022-11-09
Start date
2022-12-10
Completion date
Unknown
Last updated
2023-05-15

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

Conditions

Trendelenburg position and laparoscopic pneumoperitoneum surgery

Interventions

Case series:None

Sponsors

NANFANG HOSPITAL SOUTHERN MEDICAL UNIVERSITY
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1. Sign the informed consent form voluntarily; 2. Age from 18 years old to 80 years old, regardless of gender; 3. Patients undergoing elective laparoscopic pneumoperitoneum in the Trendelenburg position.

Exclusion criteria

Exclusion criteria: 1. Patients with previous central nervous system diseases, cerebrovascular diseases, and ophthalmic diseases; 2. People who drink too much alcohol or take psychotropic drugs; 3. People with illiteracy, vision, and hearing impairment; 4. Patients with unclear ONSD during ultrasound measurement; 5. Patients were converted to open surgery; 6. According to the judgment of the researcher, it is not suitable to participate in this research.

Design outcomes

Primary

MeasureTime frame
Optic nerve sheath diameter;

Secondary

MeasureTime frame
Cerebral oxygen saturation;Montreal cognitive assessment;Postoperative nausea and vomiting ;

Countries

China

Contacts

Public ContactWenting Chen

NANFANG HOSPITAL SOUTHERN MEDICAL UNIVERSITY

chenwenting326@126.com+86 13560366082

Outcome results

None listed

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