The influence of hemodynamic parameters on cerebral oxygen saturation during operations with trendelenburg position and head up tilt

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00024504

Enrollment

Registered

2021-11-04

Start date

2020-11-03

Completion date

Unknown

Last updated

2026-03-02

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

Conditions

F05.9

Interventions

Group 1: extended hemodynamic monitoring, CBF measurement, postoperative cognitive testing

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: extended hemodynamic monitoring, surgery in general anesthesia, head-up or head-down positioning

Exclusion criteria

Exclusion criteria: Pregnancy, cerebral vascular malformations

Design outcomes

Primary

Measure	Time frame
Increase/decrease in cerebral blood flow after positioning	—

Secondary

Measure	Time frame
postoperative cognitive deficit, relationship between arterial blood pressure and cerebral parameters, relationship between cardiac output and cerebral parameters	—

Countries

Germany

Contacts

Public ContactMarcus Thudium

Universitätsklinikum Bonn

marcus.thudium@ukbonn.de0228 28715109

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Mar 14, 2026