title: Pressure waveform-guided epidural catheter placement in comparison to the loss-of-resistance conventional method.
abstract: OBJECTIVE
  To investigate pressure waveform-guided epidural catheter placement (PWEP) and its effect in clinical practice.
  
  
  METHODS
  Single-center, prospective cohort study.
  
  
  METHODS
  University teaching hospital.
  
  
  METHODS
  3,326 patients undergoing thoracic, abdominal, and lower limb surgery.
  
  
  METHODS
  1,614 underwent PWEP and 1,664 had the loss-of-resistance (LOR) technique.
  
  
  METHODS
  Anesthesia success and catheter replacement-related complications were recorded.
  
  
  RESULTS
  The specificity and sensitivity of PWEP was higher than LOR, and it also provided higher satisfaction with anesthesia when compared with the LOR technique (62.8% vs 45.6 %; P < 0.05). PWEP also performed better than LOR in risk of anesthesia failure (0.4% vs 1.1%; P < 0.05) and catheter replacement-related complications (0% vs 0.6%; P < 0.05).
  
  
  CONCLUSIONS
  PWEP is a reliable and useful technique for epidural catheter placement.
authors.affiliation: Department of Anesthesiology, First Affiliated Hospital of Inner Mongolia Medical College, Huhehot, Inner Mongolia, China. Electronic address: dr.gongyuhua@gmail.com.
authors.forename: Yuhua
authors.initials: Y
authors.lastname: Gong
authors.affiliation: Department of Anesthesiology, First Affiliated Hospital of Inner Mongolia Medical College, Huhehot, Inner Mongolia, China.
authors.forename: Haixia
authors.initials: H
authors.lastname: Shi
authors.affiliation: Department of Anesthesiology, First Affiliated Hospital of Inner Mongolia Medical College, Huhehot, Inner Mongolia, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Wu
authors.affiliation: Department of Anesthesiology, First Affiliated Hospital of Inner Mongolia Medical College, Huhehot, Inner Mongolia, China.
authors.forename: Danbaila
authors.initials: D
authors.lastname: Labu
authors.affiliation: Department of Anesthesiology, First Affiliated Hospital of Inner Mongolia Medical College, Huhehot, Inner Mongolia, China.
authors.forename: Junzhi
authors.initials: J
authors.lastname: Sun
authors.affiliation: Department of Anesthesiology, First Affiliated Hospital of Inner Mongolia Medical College, Huhehot, Inner Mongolia, China.
authors.forename: Haiyan
authors.initials: H
authors.lastname: Zhong
authors.affiliation: Department of Anesthesiology, First Affiliated Hospital of Inner Mongolia Medical College, Huhehot, Inner Mongolia, China.
authors.forename: Libiao
authors.initials: L
authors.lastname: Li
authors.affiliation: Department of Anesthesiology, First Affiliated Hospital of Inner Mongolia Medical College, Huhehot, Inner Mongolia, China.
authors.forename: Xuedong
authors.initials: X
authors.lastname: Xin
authors.affiliation: Department of Anesthesiology, First Affiliated Hospital of Inner Mongolia Medical College, Huhehot, Inner Mongolia, China.
authors.forename: Ling
authors.initials: L
authors.lastname: Wang
authors.affiliation: Department of Anesthesiology, First Affiliated Hospital of Inner Mongolia Medical College, Huhehot, Inner Mongolia, China.
authors.forename: Lifang
authors.initials: L
authors.lastname: Wu
authors.affiliation: Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Imperial College London, Chelsea and Westminster Hospital, London, UK. Electronic address: d.ma@imperial.ac.uk.
authors.forename: Daqing
authors.initials: D
authors.lastname: Ma
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000767:Anesthesia, Epidural / Q000379:methods*; D002404:Catheterization / Q000379:methods*; D002648:Child; D002675:Child, Preschool; D015331:Cohort Studies; D005260:Female; D006785:Hospitals, University; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013514:Surgical Procedures, Operative / Q000379:methods*; D055815:Young Adult
keywords: Catheterization; Epidural anesthesia; Epidural catheter placement: complications; Loss-of-resistance technique; Pressure waveform-guided epidural catheter placement