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Impact of Reverse Trendelenburg on ONSD in Obesity Surgery

NCT07639502 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 90

Last updated 2026-07-14

No results posted yet for this study

Summary

This prospective randomized controlled trial aims to investigate the effect of reverse Trendelenburg positioning applied before pneumoperitoneum on optic nerve sheath diameter (ONSD) and, consequently, intracranial pressure during laparoscopic bariatric surgery. Patients will be randomly assigned to two groups, and perioperative changes in ONSD will be compared between the groups. The primary hypothesis of the study is that applying the reverse Trendelenburg position before pneumoperitoneum may attenuate ONSD enlargement and thereby help prevent increases in intracranial pressure.

Conditions

  • Morbid Obesity

Interventions

OTHER

Pre-pneumoperitoneum Reverse Trendelenburg Group

Patients are placed in the reverse Trendelenburg position before carbon dioxide insufflation and establishment of pneumoperitoneum.

Sponsors & Collaborators

  • Bagcilar Training and Research Hospital

    lead OTHER_GOV

Principal Investigators

  • SEZEN KUMAS SOLAK, MD · Bagcılar Training Research Hospital

Study Design

Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2026-01-01
Primary Completion
2026-04-15
Completion
2026-06-01

Countries

  • Turkey (Türkiye)

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07639502 on ClinicalTrials.gov