PMID- 14764169
OWN - NLM
STAT- MEDLINE
DCOM- 20040618
LR  - 20190726
IS  - 0147-8389 (Print)
IS  - 0147-8389 (Linking)
VI  - 27
IP  - 2
DP  - 2004 Feb
TI  - Localization of accessory pathways by the electrocardiogram: which is the degree 
      of accordance of three algorithms in use?
PG  - 189-93
AB  - We evaluated the extent of agreement among three algorithms used for the 
      localization of accessory pathways in patients with overt preexcitation. By the 
      use of one algorithm, three independent couples of observers localized the 
      accessory pathway in 95 consecutive patients showing overt preexcitation in the 
      12-lead surface electrocardiogram. We defined the following regions: Left 
      atrioventricular ring (LAVR), Right atrioventricular ring (RAVR), Left 
      lateral/left anterolateral (LL/LAL), Left posterior/left posterolateral (LP/LPL), 
      Left posteroseptal (LPS), Right midseptal (RMS), Right posteroseptal (RPS), Right 
      posterior/right posterolateral (RP/RPL), Right lateral/right anterolateral 
      (RL/RAL), and Right anterior/right anteroseptal (RA/RAS). The extent of agreement 
      in each region was evaluated and compared with the expected one, as calculated 
      from the reported. The extent of agreement was as expected: (1) high in the 
      regions LAVR, RAVR, LL/LPS and (2) limited in the regions LPS, RPS, and (3) 
      clearly lower than expected in the regions LP/LPL, RA/RAS, RMS, RL/RAL. In cases 
      with total or partial disagreement, the number of electrocardiograms with 
      duration of QRS complex smaller than 120 ms was greater than in cases with total 
      agreement (30/46 vs 22/50, P < 0.05). The observed agreement among algorithms is 
      clearly lower than the expected one. Minimal preexcitation, limited number of 
      patients, and arbitrarily defined regions were possibly the reasons for some 
      unexpected results.
FAU - Katsouras, Christos S
AU  - Katsouras CS
AD  - Department of Cardiology, University Hospital of Ioannina, Ioannina, Greece. 
      cskats@yahoo.com
FAU - Greakas, Georgios F
AU  - Greakas GF
FAU - Goudevenos, John A
AU  - Goudevenos JA
FAU - Michalis, Lampros K
AU  - Michalis LK
FAU - Kolettis, Theofilos
AU  - Kolettis T
FAU - Economides, Constantinos
AU  - Economides C
FAU - Argyri, Urania
AU  - Argyri U
FAU - Pappas, Spiridon
AU  - Pappas S
FAU - Sideris, Dimitris A
AU  - Sideris DA
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Pacing Clin Electrophysiol
JT  - Pacing and clinical electrophysiology : PACE
JID - 7803944
SB  - IM
MH  - Algorithms
MH  - Atrioventricular Node/physiopathology
MH  - *Electrocardiography/classification/statistics & numerical data
MH  - Forecasting
MH  - Heart Conduction System/*physiopathology/surgery
MH  - Heart Septum/physiopathology
MH  - Humans
MH  - Observer Variation
MH  - Pre-Excitation Syndromes/*physiopathology/surgery
MH  - Single-Blind Method
MH  - Time Factors
EDAT- 2004/02/07 05:00
MHDA- 2004/06/23 05:00
CRDT- 2004/02/07 05:00
PHST- 2004/02/07 05:00 [pubmed]
PHST- 2004/06/23 05:00 [medline]
PHST- 2004/02/07 05:00 [entrez]
AID - 10.1111/j.1540-8159.2004.00409.x [doi]
PST - ppublish
SO  - Pacing Clin Electrophysiol. 2004 Feb;27(2):189-93. doi: 
      10.1111/j.1540-8159.2004.00409.x.