Anaesthesia, Changes i Myocardial Velocities, Changes in Bloodflow Across Cardiac Valves, Changes in Diastolic Function, Changes in Dimensions of Inferior Caval Dimension and Hepatic Venous Bloodflow, Changes in Left and Right Ventricle Dimension, Obesity, Spinal Surgery
Conditions
Brief summary
Transoesophageal ultrasound examination before and after prone position.
Detailed 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.
Interventions
OTHERChange from supine to prone position
Change from supine to prone position
Sponsors
Odense University Hospital
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| End systolic and diastolic dimension of the left and right ventricle. | The day of surgery | Studied after induction of anaesthesia, before and after the patient is placed in the prone position. |
Secondary
| Measure | Time frame |
|---|---|
| Left and rigth ventricle eccentricity index. | The day of surgery |
Countries
Denmark
Contacts
Primary ContactJoachim Hoffmann-Petersen, MD
Backup ContactHenrik Berg, MD
Outcome results
None listed