Haemodynamic Changes During Anaesthesia in the Prone Position, Evaluated Using Transoesophageal Ultrasound

Odense University Hospital

Status: Unknown

Conditions: Spinal Surgery; Anaesthesia; Changes in Left and Right Ventricle Dimension; Changes in Bloodflow Across Cardiac Valves; Changes in Diastolic Function; Obesity; Changes i Myocardial Velocities; Changes in Dimensions of Inferior Caval Dimension and Hepatic Venous Bloodflow

Treatments: Other: Change from supine to prone position

Study type: Observational

Funder types: Other

Identifiers

NCT02595788

S-20130032

Details and patient eligibility

About

Transoesophageal ultrasound examination before and after prone position.

Full description

Patients undergoing spinal surgery in the prone position are anaesthetized and then an ultrasound probe is placed in the oesophagus and the heart physiology is examined. Following prone position the examination is repeated.

Enrollment: 20 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• adult patients scheduled for spinal surgery in the prone position. Body mass index above 30.

Exclusion criteria

• significant cardiomyopathy or valvular disease
• heart rhythm other than normal sinus rhythm
• coagulopathy
• increased risk of oesophageal injury during probe insertion

Trial design

20 participants in 2 patient groups

Supine position

Description:

Examination in the supine position

Prone position

Description:

Change from supine to prone position

Treatment:

Other: Change from supine to prone position