title: Recovery room risk and outcome associated with renal extracorporeal shock wave lithotripsy.
abstract: OBJECTIVE
  To determine (1) the general risk and outcome in the recovery room among 4 different anesthetic techniques associated with 2 different extracorporeal shock wave lithotripsy (ESWL) machines and (2) any gender-related differences among patients undergoing ESWL.
  
  
  METHODS
  Retrospective statistical analysis.
  
  
  METHODS
  University medical center.
  
  
  METHODS
  2,203 ASA physical status I-IV patients undergoing ESWL over a 46-month period.
  
  
  METHODS
  A review of the chart records of patients who received 1 of 4 anesthetic techniques (general, spinal, epidural, or monitored anesthesia care) on 1 of 2 ESWL machines.
  
  
  RESULTS
  A positive finding was defined as a complication and/or side effect of such significance as to require a treatment order or recovery room note on the patient's chart. The main complications and/or side effects were nausea and/or vomiting, flank pain, and hypertension. Female patients experienced flank pain and nausea and/or vomiting with general anesthesia and monitored anesthesia care at approximately twice the frequency of males.
  
  
  CONCLUSIONS
  (1) Overall, ESWL is relatively safe. Both machine types and all anesthetic techniques exhibited a low risk and good outcome. (2) There appear to be gender-related differences during ESWL. Female and male patients may have different pain and nausea and/or vomiting thresholds during ESWL.
authors.affiliation: Department of Anesthesiology, University of Kansas Medical Center, Kansas City 66160-7415.
authors.forename: A L
authors.initials: AL
authors.lastname: Kovac
mesh_terms: D000328:Adult; D000368:Aged; D000758:Anesthesia / Q000009:adverse effects*; D000762:Anesthesia Recovery Period; D000767:Anesthesia, Epidural / Q000009:adverse effects; D000768:Anesthesia, General / Q000009:adverse effects; D000769:Anesthesia, Inhalation / Q000009:adverse effects; D005260:Female; D006801:Humans; D007669:Kidney Calculi / Q000628:therapy*; D008096:Lithotripsy / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D012306:Risk