title: Hypotension during surgery for femoral neck fracture in elderly patients: effect of anaesthetic techniques. A retrospective study.
abstract: BACKGROUND
  The aim of this retrospective study was to compare the incidence of hypotension between different anaesthetic techniques, including general anaesthesia (GA), spinal anaesthesia single injection (SA), continuous spinal anaesthesia with 2.5 mg bolus injections as needed (CSA 2.5) or 5 mg bolus injections as needed (CSA 5) in elderly patients (>75 yrs old) undergoing surgery for femoral neck fractures.
  
  
  METHODS
  Demographic, surgical and hemodynamic data from 333 patients over a four year period within a single hospital were recorded and examined.
  
  
  RESULTS
  Forty-two patients underwent GA, 109 underwent SA, 61 underwent CSA 5, and 121 underwent CSA 2.5. Patients receiving GA, SA or CSA 5 had a higher incidence of hypotension (83%, 68%, and 34%, respectively) than patients who underwent CSA 2.5 (4%; P<0.05). The CSA 2.5 group required less colloid infusion (490+/-50 mL) than the GA and SA groups (810+/-330 and 645+/-230 mL, respectively). The CSA 2.5 group also required less crystalloid infusion volume (760+/-371 mL) than the GA group (1140+/-770 mL). Ephedrine infusion was higher in the GA and SA groups (30+/-10 and 26+/-9 mg, respectively) than the CSA 2.5 (15+/-8 mg; P<0.05).
  
  
  CONCLUSIONS
  This study demonstrated that CSA 2.5 causes fewer episodes of hypotension than other anaesthetic techniques for surgical repair of hip fracture in elderly patients.
authors.affiliation: Department of Anaesthesiology and Intensive Care, University Hospital of Toulouse, University of Paul Sabatier, Toulouse, France. vincentminville@yahoo.fr
authors.forename: V
authors.initials: V
authors.lastname: Minville
authors.forename: K
authors.initials: K
authors.lastname: Asehnoune
authors.forename: A
authors.initials: A
authors.lastname: Delussy
authors.forename: O
authors.initials: O
authors.lastname: Fourcade
authors.forename: A
authors.initials: A
authors.lastname: Colombani
authors.forename: A
authors.initials: A
authors.lastname: Rabinowitz
authors.forename: K
authors.initials: K
authors.lastname: Samii
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000768:Anesthesia, General / Q000009:adverse effects*; D000775:Anesthesia, Spinal / Q000009:adverse effects*; D000779:Anesthetics, Local / Q000008:administration & dosage / Q000009:adverse effects*; D002045:Bupivacaine / Q000008:administration & dosage / Q000009:adverse effects*; D005260:Female; D005265:Femoral Neck Fractures / Q000601:surgery*; D006801:Humans; D007022:Hypotension / Q000453:epidemiology* / Q000209:etiology*; D015994:Incidence; D008297:Male; D012189:Retrospective Studies
chemical_list: D000779:Anesthetics, Local; D002045:Bupivacaine