PMID- 10590498
OWN - NLM
STAT- MEDLINE
DCOM- 20000713
LR  - 20191103
IS  - 1383-875X (Print)
IS  - 1383-875X (Linking)
VI  - 4 Suppl 1
DP  - 2000 Jan
TI  - New mapping technology for atrial tachycardias.
PG  - 117-20
AB  - Prerequisite for succesful radiofrequency catheter ablation of tachycardias is 
      the exact mapping during the electrophysiological study. The new mapping system 
      CARTO allows a three-dimensional color-coded electroanatomic map of impulse 
      propagation using electromagnetic technology. The aim of this study was to 
      determine the feasibility and safety of the new electromagnetic mapping 
      technology CARTO for atrial tachycardias. RESULTS: Electrophysiologic study and 
      CARTO mapping was performed in 38 atrial tachycardias. The mapping procedure took 
      26 +/- 23 min. We created 33 maps within the right atrium and 5 maps within the 
      left atrium with a mean of 74 +/- 38 different catheter positions. The mechanism 
      was determined as reentrant in 9, junctional in 1 and focal in 28 tachycardias. 
      In focal tachycardias the tachycardia cycle length (CL) and the total atrial 
      activation time (AT) were clearly different (352 +/- 98 ms vs 99 +/- 25 ms). 
      Reentrant tachycardias had a comparable CL and AT (236 +/- 44 ms vs 240 +/- 56 
      ms). In 83% of the focal tachycardias and in 67% of the reentrant tachycardias, 
      ablation was performed successfully. No complications occured. CONCLUSION: The 
      electroanatomic mapping system allows high resolution visualization of electrical 
      activity and may therefore improve precision and simplify the determination of 
      the arrhythmogenic substrate during tachycardias for successful catheter 
      ablation.
FAU - Hoffmann, E
AU  - Hoffmann E
AD  - Med. Klinik I, Klinikum Grosshadern, LMU Munich, Germany.
FAU - Nimmermann, P
AU  - Nimmermann P
FAU - Reithmann, C
AU  - Reithmann C
FAU - Elser, F
AU  - Elser F
FAU - Remp, T
AU  - Remp T
FAU - Steinbeck, G
AU  - Steinbeck G
LA  - eng
PT  - Clinical Trial
PT  - Journal Article
PL  - Netherlands
TA  - J Interv Card Electrophysiol
JT  - Journal of interventional cardiac electrophysiology : an international journal of 
      arrhythmias and pacing
JID - 9708966
SB  - IM
MH  - Adult
MH  - Aged
MH  - Atrial Fibrillation/*diagnosis/therapy
MH  - Body Surface Potential Mapping/*methods
MH  - Catheter Ablation
MH  - Electromagnetic Fields
MH  - Female
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Sensitivity and Specificity
EDAT- 1999/12/11 09:00
MHDA- 2000/07/15 11:00
CRDT- 1999/12/11 09:00
PHST- 1999/12/11 09:00 [pubmed]
PHST- 2000/07/15 11:00 [medline]
PHST- 1999/12/11 09:00 [entrez]
AID - 10.1023/a:1009894903100 [doi]
PST - ppublish
SO  - J Interv Card Electrophysiol. 2000 Jan;4 Suppl 1:117-20. doi: 
      10.1023/a:1009894903100.