Transcript PowerPoint-presentation

UlTRASOUND/MAGNETIC RESONANCE IMAGE FUSION GUIDED
LUMBOSACRAL PLEXUS BLOCK – A CLINICAL STUDY
Jennie M C Strid1, Erik M Pedersen2, Kjeld Søballe3, Thomas F Bendtsen1
Affiliations: 1 Department of Anesthesiology and Intensive Care Medicine, Aarhus University Hospital;
2 Department of Radiology, Aarhus University Hospital; 3 Department of Orthopedics Surgery, Aarhus University Hospital
Contact: Jennie M C Strid, MD, PhD fellow; Phone +45 2342 0949; E-mail [email protected]
BACKGROUND: HIP SURGERY
ANAESTHESIA & ANALGESIA
• Traditional methods inappropriate for
fragile elderly comorbid patients
• Alternative: US guided lumbosacral
plexus block (Suprasacral Parallel Shift,
SSPS)
• Complex lumbosacral anatomy
• US/MR image fusion with 3D electronic
needle guidance increases block
precision
MATERIAL & METHODS
• Double-blinded randomised controlled trial
• 24 healthy male volunteers
• MR datasets of lumbosacral region
• Upload to US system + synchronisation
• SSPS block with lidocaine + contrast
guided by US/MR image fusion vs. by US
one week apart
• Estimate and compare
 L2-S1 sensory and motor block
AIM
• Compare lidocaine effect and distribution
after SSPS guided by US/MR image fusion
vs. SSPS guided by US
• Success rate US/MR image fusion guided
SSPS hypothesised highest
 Plasma lidocaine over time
 Lidocaine MR distribution
FUTURE US/MR IMAGE FUSION GUIDED SSPS
• Safe effective hip surgery anaesthesia
• Minimised perioperative opioid need
• Decreased surgery mortality and morbidity and
opioid side effects
• Other blocks guided by US/MR image fusion