PMID- 10392382
OWN - NLM
STAT- MEDLINE
DCOM- 19990908
LR  - 20190726
IS  - 0147-8389 (Print)
IS  - 0147-8389 (Linking)
VI  - 22
IP  - 6 Pt 1
DP  - 1999 Jun
TI  - Inverse relation of body-surface activation-recovery interval and recovery time 
      to activation time in normal subjects: stronger correlation and more 
      heterogeneous distribution in activation-recovery interval than in recovery time.
PG  - 855-65
AB  - The activation-recovery interval (ARI), measured directly from the myocardium, 
      has shown a good correlation with the action potential duration (APD) in 
      experiments. APD has been reported to be inversely related to the activation time 
      (AT). However, no studies have examined the correlation between the body-surface 
      ARI and AT in normal subjects. Fifty normal subjects (25 men and 25 women) were 
      studied to elucidate the relationship between the body-surface ARI and AT. The 
      body-surface AT was defined as the duration between the QRS onset and the minimum 
      dV/dt of the QRS wave, and ARI as the interval between the minimum dV/dt of the 
      QRS wave and the maximum dV/dt of the T wave in each lead of an 87 unipolar lead 
      system. We also measured the recovery time (RT) defined as the duration between 
      the QRS onset and the maximum dV/dt of the T wave. ARI was inversely correlated 
      with AT (r = -0.73). RT was also inversely correlated with AT (r = -0.61), 
      however, RT had a less heterogeneous distribution than ARI (148 ms vs 159 ms). 
      There were no differences between male and female subjects in the relation 
      between ARI and RT or in the body-surface distribution of ARI and RT. These 
      findings suggest that the body-surface ARI may reflect recovery properties over 
      the cardiac surface and that APD may distribute inhomogeneously over the human 
      cardiac surface with a longer RT over an area with a shorter AT. ARI calculated 
      from body-surface ECG may be a useful noninvasive and repeatedly measurable 
      estimate of APD.
FAU - Iwata, K
AU  - Iwata K
AD  - Division of Cardiology, Aichi Prefectural Owari Hospital, Japan.
FAU - Hirai, M
AU  - Hirai M
FAU - Yoshida, Y
AU  - Yoshida Y
FAU - Iino, S
AU  - Iino S
FAU - Kondo, T
AU  - Kondo T
FAU - Shimizu, A
AU  - Shimizu A
FAU - Terazawa, M
AU  - Terazawa M
FAU - Akahoshi, M
AU  - Akahoshi M
FAU - Inden, Y
AU  - Inden Y
FAU - Sugino, M
AU  - Sugino M
FAU - Tsuda, M
AU  - Tsuda M
FAU - Tomita, Y
AU  - Tomita Y
FAU - Saito, H
AU  - Saito H
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Pacing Clin Electrophysiol
JT  - Pacing and clinical electrophysiology : PACE
JID - 7803944
SB  - IM
MH  - Adolescent
MH  - Adult
MH  - *Body Surface Potential Mapping
MH  - Electrocardiography/*instrumentation
MH  - Electrodes
MH  - Equipment Design
MH  - Female
MH  - Humans
MH  - Male
MH  - Reference Values
MH  - Signal Processing, Computer-Assisted/instrumentation
EDAT- 1999/07/07 00:00
MHDA- 1999/07/07 00:01
CRDT- 1999/07/07 00:00
PHST- 1999/07/07 00:00 [pubmed]
PHST- 1999/07/07 00:01 [medline]
PHST- 1999/07/07 00:00 [entrez]
AID - 10.1111/j.1540-8159.1999.tb06808.x [doi]
PST - ppublish
SO  - Pacing Clin Electrophysiol. 1999 Jun;22(6 Pt 1):855-65. doi: 
      10.1111/j.1540-8159.1999.tb06808.x.