2Hu S, Zhang ZY, Hua YQ, et al. A comparison of regional and general anaesthesia for total replacement of the hip or knee: a meta-analysis[J]. J Bone Joint Surg Br,2009,91(7) :935-942.
4Minville V, Asehnoune K, Delussy A, et al. Hypotension dur- ing surgery for femoral neck fracture in elderly patients: effect of anaesthetic techniques, a retrospective study[J]. Minerva Anestesiol, 2008,74 (12) : 691-696.
5Reich DL, Hossain S, Krol M, et al. Predictors of hypotension after induction of general anesthesia[J]. Anesth Analg, 2005, 101(3) : 622-628.
6Sen S, Aydin K, Discigil G. Hypotension induced by lateral decubitus or supine spinal anaesthesia in elderly with low ejec- tion fraction undergone hip surgery[J]. J Clin Monit Comput, 2007,21(2) : 103-107.