Comparison of metabolic rates of ropivacaine in cerebrospinal fluid as inferred from plasma concentrations between elderly patients and young patients
Authors' conclusion
The cumulation of ropivacaine and HA appears to imitate the degeneration of central lymphatic circulation metabolism in elderly people.
Study context
- Population
- Patients with spinal anaesthesia in orthopedic lower limb surgery
- Participants
- 20 patients
- Exposure
- Elderly vs young patients
- Outcome
- Rate of ropivacaine metabolism in cerebrospinal fluid (peripheral blood ropivacaine as probe)
Main finding
As reported in the abstract
Ropivacaine metabolism rate and anaesthesia duration
- Equivalent ropivacaine dose anaesthetised the elderly for longer
- Ropivacaine metabolism slower in elderly than young
Observational data: associations, not effects.
Further findings
CSF total Aβ protein
- No significant difference between groups
CSF hyaluronic acid
- Significantly higher in elderly than young
Original publication
Comparison of metabolic rates of ropivacaine in cerebrospinal fluid as inferred from plasma concentrations between elderly patients and young patients. Perioper Med (Lond). Published 6 March 2024. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →