Hip fracture is a frequent pathology, involving elderly patients with many co-morbidities ; therefore, post-operative morbidity and mortality is high. It is reported that intra-operative hemodynamics correlate with post-operative complications such as myocardial injury after non-cardiac surgery (MINS) or acute kidney injury (AKI) ; that is why elderly patients undergoing hip fracture surgery should benefit from a better hemodynamic stability. Low-dose hypobaric lateral spinal anesthesia with a reduced dose of local anesthetic has been shown to have better hemodynamic stability than conventional spinal anesthesia. It has also been reported that general anesthesia and conventional spinal anesthesia in elderly patients undergoing hip fracture surgery have the same hemodynamic effect. However, no published study has compared low-dose hypobaric lateral spinal anesthesia to general anesthesia with regards to hemodynamic effects. The aim of the present study is to compare the intra-operative hemodynamics of low-dose hypobaric lateral spinal anesthesia with that of general anesthesia in elderly patients undergoing hip fracture surgery.
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Number of episode of severe intraoperative hypotension
Timeframe: At Day 0