Influence of Two Different PEEP Niveaus and a Trendelenburg Positioning Manoeuvre on Subclavian Vein Diameter

Universitätsklinikum Köln

Status: Withdrawn

Conditions: Insufficiency; Cardiac, Complicating Surgery

Treatments: Other: Trendelenburg positioning -20°, PEEP 0 cmH2O; Other: neutral positioning, PEEP 5cm H2O; Other: Trendelenburg positioning -20°, PEEP 5 cmH2O; Other: Trendelenburg positioning -20°, PEEP 10 cmH2O; Other: neutral positioning, PEEP 0 cm H2O; Other: neutral positioning, PEEP 10cm H2O

Study type: Observational

Funder types: Other

Identifiers

NCT02231463

CVL-Position-1

Details and patient eligibility

About

In 50 Patients who are undergoing a planned surgical procedure which require a central venous catheter the diameter of the subclavian vein is measured by ultrasound under 6 different conditions.

Full description

In 50 Patients who are undergoing a planned surgical procedure which require a central venous catheter the diameter of the subclavian vein is measured by ultrasound under 6 different conditions. The conditions are

1. neutral positioning, PEEP 0 cm H2O,
2. neutral positioning, PEEP 5cm H2O,
3. neutral positioning, PEEP 10cm H2O,
4. Trendelenburg positioning -20°, PEEP 0 cmH2O,
5. Trendelenburg positioning -20°, PEEP 5 cmH2O,
6. Trendelenburg positioning -20°, PEEP 10 cmH2O After these measurements a central venous catheter is used to measure the central venous pressure.

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Age >18 years
• cardiosurgery or neurosurgery
• written informed consent
• ECG: inus rhythm

Exclusion criteria

• peacemaker
• kontraindications for PEEP
• pulmonary disease
• hemodynamically instable patients
• pregnancy
• pulmonal Hypertension
• ejection fraction < 35%
• severe valvular disease
• tricuspid insufficiency

Trial design

0 participants in 1 patient group

ultrasound measurement

Description:

measuring subclavian vein Diameter in six Groups: neutral positioning, PEEP 0 cm H2O, neutral positioning, PEEP 5cm H2O, neutral positioning, PEEP 10cm H2O, Trendelenburg positioning -20°, PEEP 0 cmH2O, Trendelenburg positioning -20°, PEEP 5 cmH2O, Trendelenburg positioning -20°, PEEP 10 cmH2O After these measurements a central venous catheter is used to measure the central venous pressure.

Treatment:

Other: neutral positioning, PEEP 0 cm H2O

Other: neutral positioning, PEEP 5cm H2O

Other: Trendelenburg positioning -20°, PEEP 5 cmH2O

Other: Trendelenburg positioning -20°, PEEP 0 cmH2O

Other: Trendelenburg positioning -20°, PEEP 10 cmH2O

Other: neutral positioning, PEEP 10cm H2O