title: Immediate effect of Biosense guided percutaneous direct myocardial revascularization with holmium:yttrium aluminium garnet laser on myocardial contractility assessed by transesophageal echocardiography.
abstract: OBJECTIVE
  To evaluate immediate changes in left ventricular wall motion in patients treated using Biosense direct myocardial revascularization laser system.
  
  
  METHODS
  Regional wall motion in 10 patients undergoing catheter-based direct myocardial revascularization using a holmium:yttrium aluminium garnet laser was assessed by transesophageal echocardiography before and immediately after the procedure.
  
  
  RESULTS
  Mild deterioration in wall-motion score occurred rarely for only three of 160 (1.9%) segments and did not induce clinical heart failure.
  
  
  CONCLUSIONS
  With the current catheter-based laser myocardial revascularization strategy, mild deterioration in wall motion of treated segments was rarely observed and did not effect overall left ventricular function or induce clinical congestive heart failure.
authors.affiliation: Department of Cardiology, Washington Hospital Center, DC, USA.
authors.forename: A
authors.initials: A
authors.lastname: Shiran
authors.forename: S A
authors.initials: SA
authors.lastname: Goldstein
authors.forename: S
authors.initials: S
authors.lastname: Ellahham
authors.forename: M B
authors.initials: MB
authors.lastname: Leon
authors.forename: R
authors.initials: R
authors.lastname: Kornowski
mesh_terms: D000368:Aged; D017548:Echocardiography, Transesophageal; D005260:Female; D006695:Holmium; D006801:Humans; D007834:Lasers; D008297:Male; D008875:Middle Aged; D009204:Myocardial Revascularization / Q000379:methods*; D013997:Time Factors; D016896:Treatment Outcome; D016277:Ventricular Function, Left; D015019:Yttrium
chemical_list: D015019:Yttrium; D006695:Holmium