title: A pilot study of cardiac electrophysiology catheters to map and pace bladder electrical activity.
abstract: This is a pilot study to evaluate the feasibility of using diagnostic cardiac electrophysiology catheters for recording intrinsic urinary bladder electrical activity and for electrical pacing capture of bladder tissue.
  
  
  
  During cystoscopy, a curved quadripolar catheter was introduced and contact was made with the right and left halves of the dome and trigone in adult female patients undergoing cystoscopy. Electrical activity was recorded, using a commercially available cardiac electrophysiologic recording system, before and during pacing at 0.5-3.0 Hz.
  
  
  
  Apparent spontaneous electrical depolarizations were detected in both the trigone and the dome. The amplitude of these depolarizations was in the microVolt range. During pacing, local electrical capture was noted in the trigone, but not in the dome.
  
  
  
  Spontaneous low-amplitude electrical activity was detected in the bladder through the use of commercially available cardiac electrophysiology equipment. While these low-level signals could represent noise, the voltage, and morphology resemble detrusor muscle action potentials previously seen in animal studies. Pacing induced local electrical capture in the trigone but not the dome.
authors: Department of Gynecology and Obstetrics, Emory University, Atlanta, Georgia.
authors: Robert S
authors: RS
authors: Kelley
authors: Department of Obstetrics and Gynecology, Mount Sinai Hospital, New York, New York.|Department of Obstetrics and Gynecology, Englewood Hospital and Medical Center, Englewood, New Jersey.
authors: Michael D
authors: MD
authors: Vardy
authors: Department of Cardiology, Englewood Hospital and Medical Center, Englewood, New Jersey.
authors: Grant R
authors: GR
authors: Simons
authors: Department of Cardiac Electrophysiology, Private Practice, San Pablo, California.
authors: Henry
authors: H
authors: Chen
authors: Department of Obstetrics and Gynecology, Mount Sinai Hospital, New York, New York.
authors: Charles
authors: C
authors: Ascher-Walsh
authors: Department of Obstetrics and Gynecology, Mount Sinai Hospital, New York, New York.
authors: Michael
authors: M
authors: Brodman
mesh_terms: D000200:Action Potentials; D062906:Cardiac Catheters; D003558:Cystoscopy; D022062:Electrophysiologic Techniques, Cardiac / Q000295:instrumentation; D055724:Electrophysiological Phenomena; D005240:Feasibility Studies; D005260:Female; D006801:Humans; D008875:Middle Aged; D009130:Muscle, Smooth / Q000503:physiopathology*; D010865:Pilot Projects; D001743:Urinary Bladder / Q000503:physiopathology*; D014555:Urination Disorders / Q000503:physiopathology*
keywords: LUTS; bladder; electrophysiology; overactive; pilot; underactive