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

Odense University Hospital20 enrolled

Overview

Transoesophageal ultrasound examination before and after prone position.

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.

Study Type

OBSERVATIONAL

Enrollment

Conditions

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

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

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

Outcomes

Primary Outcomes

End systolic and diastolic dimension of the left and right ventricle.

Studied after induction of anaesthesia, before and after the patient is placed in the prone position.

Time frame: The day of surgery

Secondary Outcomes

Left and rigth ventricle eccentricity index.

Time frame: The day of surgery

Central Contacts

Joachim Hoffmann-Petersen, MD

CONTACT

+45 40515531 joachimstyrer@yahoo.dk

Henrik Berg, MD

CONTACT

+45 65411060 henrik.berg@rsyd.dk

Data from ClinicalTrials.gov

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