title: Incidence of asymptomatic oesophageal lesions after atrial fibrillation ablation using an oesophageal temperature probe with insulated thermocouples: a comparative controlled study.
abstract: OBJECTIVE
  Oesophageal probes to monitor luminal oesophageal temperature (LET) during atrial fibrillation (AF) catheter ablation have been proposed, but their effects remain unclear. Aim of this study is to evaluate the effects of an oesophageal temperature probe with insulated thermocouples.
  
  
  RESULTS
  Patients with symptomatic, drug-refractory paroxysmal or persistent AF who underwent left atrial radiofrequency (RF) catheter ablation were prospectively enrolled. Patients were ablated using a single-tip RF contact force ablation catheter. An intraluminal oesophageal temperature probe was used in Group 1. In Group 2, patients were ablated without LET monitoring. Assessment of asymptomatic endoscopically detected oesophageal lesions (EDEL) was performed by oesophagogastroduodenoscopy (EGD) in all patients. Eighty patients (mean age 63.7 ± 10.7 years; men 56%) with symptomatic, drug-refractory paroxysmal (n = 28; 35%) or persistent AF were included. Group 1 and Group 2 patients (n = 40 in each group) were comparable in regard to baseline characteristics, but RF duration on the posterior wall was significantly shorter in Group 1 patients. Overall, seven patients (8.8%) developed EDEL (four ulcerations, three erythema). The incidence of EDEL in Group 1 and Group 2 patients was comparable (7.5 vs. 10%, P = 1.0). No major adverse events were reported in both groups.
  
  
  CONCLUSIONS
  According to these preliminary results, the use of oesophageal temperature probes with insulated thermocouples seems to be feasible in patients undergoing AF RF catheter ablation. The incidence of post-procedural EDEL when using a cut-off of 39°C is comparable to the incidence of EDEL without using a temperature probe.
authors.affiliation: Heart Center Bad Neustadt, Clinic for Interventional Electrophysiology, Bad Neustadt an der Saale, Germany.
authors.forename: Philipp
authors.initials: P
authors.lastname: Halbfass
authors.affiliation: Heart Center Bad Neustadt, Clinic for Interventional Electrophysiology, Bad Neustadt an der Saale, Germany.|University Hospital Bergmannsheil, Ruhr-University Bochum, Bochum, Germany.
authors.forename: Patrick
authors.initials: P
authors.lastname: Müller
authors.affiliation: Heart Center Bad Neustadt, Clinic for Interventional Electrophysiology, Bad Neustadt an der Saale, Germany.
authors.forename: Karin
authors.initials: K
authors.lastname: Nentwich
authors.affiliation: Heart Center Bad Neustadt, Clinic for Interventional Electrophysiology, Bad Neustadt an der Saale, Germany.
authors.forename: Joachim
authors.initials: J
authors.lastname: Krug
authors.affiliation: Heart Center Bad Neustadt, Clinic for Interventional Electrophysiology, Bad Neustadt an der Saale, Germany.
authors.forename: Markus
authors.initials: M
authors.lastname: Roos
authors.affiliation: Heart Center Bad Neustadt, Clinic for Interventional Electrophysiology, Bad Neustadt an der Saale, Germany.
authors.forename: Karsten
authors.initials: K
authors.lastname: Hamm
authors.affiliation: Heart Center Bad Neustadt, Clinic for Interventional Electrophysiology, Bad Neustadt an der Saale, Germany.
authors.forename: Sebastian
authors.initials: S
authors.lastname: Barth
authors.affiliation: Heart Center Bad Neustadt, Clinic for Interventional Electrophysiology, Bad Neustadt an der Saale, Germany.
authors.forename: Attila
authors.initials: A
authors.lastname: Szöllösi
authors.affiliation: University Hospital Bergmannsheil, Ruhr-University Bochum, Bochum, Germany.
authors.forename: Andreas
authors.initials: A
authors.lastname: Mügge
authors.affiliation: Department of Cardiology and Angiology, Philipps University Marburg, Marburg, Germany.
authors.forename: Bernhard
authors.initials: B
authors.lastname: Schieffer
authors.affiliation: Heart Center Bad Neustadt, Clinic for Interventional Electrophysiology, Bad Neustadt an der Saale, Germany.|University Hospital Bergmannsheil, Ruhr-University Bochum, Bochum, Germany.
authors.forename: Thomas
authors.initials: T
authors.lastname: Deneke
mesh_terms: D000368:Aged; D001281:Atrial Fibrillation / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery*; D017115:Catheter Ablation / Q000009:adverse effects*; D002985:Clinical Protocols; D022062:Electrophysiologic Techniques, Cardiac; D004867:Equipment Design; D004890:Erythema / Q000175:diagnosis / Q000453:epidemiology / Q000517:prevention & control*; D004945:Esophagoscopy; D004947:Esophagus / Q000293:injuries*; D005240:Feasibility Studies; D005260:Female; D005858:Germany / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D016343:Monitoring, Intraoperative / Q000295:instrumentation*; D011446:Prospective Studies; D011667:Pulmonary Veins / Q000503:physiopathology / Q000601:surgery*; D013821:Thermometers; D014456:Ulcer / Q000175:diagnosis / Q000453:epidemiology / Q000517:prevention & control*; D014947:Wounds and Injuries / Q000175:diagnosis / Q000453:epidemiology / Q000517:prevention & control*
keywords: Atrial fibrillation; Catheter ablation; Insulated thermocouples; Oesophageal lesion; Oesophageal temperature monitoring