PMID- 1720821
OWN - NLM
STAT- MEDLINE
DCOM- 19920110
LR  - 20190817
IS  - 0047-1828 (Print)
IS  - 0047-1828 (Linking)
VI  - 55
IP  - 10
DP  - 1991 Oct
TI  - Heart rate-dependent alteration of the frequency and coupling interval of 
      ventricular arrhythmias as measured by 24-hour ECG monitoring.
PG  - 942-50
AB  - Twenty-four hour ECG recordings of 132 patients with frequent (greater than 
      1000/day) ventricular premature contractions (VPCs) were analyzed using a 
      computerized system, designed to evaluate the relationships between 1) the VPC 
      frequency and heart rate (HR) (VPC-HR relation), 2) the coupling interval (CI) of 
      VPCs and HR (CI-HR relation), and 3) the incidence of ventricular tachycardia 
      (VT) and HR (VT-HR relation). The patterns of the VPC-HR relation included: 1) an 
      increase in VPCs with increasing HR (positive correlation, 43 patients), 2) an 
      increase in VPCs at low HR range and a decrease at high HR range, with increasing 
      HR (bidirectional correlation, 74 patients), 3) a decrease in VPCs with 
      increasing HR (negative correlation, 7 patients) and 4) constant VPCs over all 
      HRs (flat correlation, 8 patients). Patients were divided into 2 broad categories 
      according to whether they had a positive correlation (P group, 43 patients) or 
      the other correlations (non-positive or NP group, 89 patients). Of 132 patients, 
      the CI-HR relation was negative in 129 (98%) and positive in only 3 (2%). 
      Patients with frequent VTs (10 or more events over 24h) were significantly more 
      frequent in the P (9 patients, 21%) than in the NP group (7 patients, 8%, p less 
      than 0.05). However, mean HR, mean CI, total VPC counts and the slope of CI-HR 
      relation were not significantly different between the groups. The VT-HR relation 
      observed in 16 patients with frequent VTs were positive in 9 of the P group and 
      in 2 of the NP group and non-positive in 5 of the NP group.(ABSTRACT TRUNCATED AT 
      250 WORDS)
FAU - Inoue, T
AU  - Inoue T
AD  - Department of Laboratory Medicine, Medical College of Oita, Japan.
FAU - Koumatsu, K
AU  - Koumatsu K
FAU - Ito, M
AU  - Ito M
FAU - Arita, M
AU  - Arita M
FAU - Saikawa, T
AU  - Saikawa T
LA  - eng
PT  - Journal Article
PL  - Japan
TA  - Jpn Circ J
JT  - Japanese circulation journal
JID - 7806868
SB  - IM
MH  - Adolescent
MH  - Adult
MH  - Aged
MH  - Aged, 80 and over
MH  - Arrhythmias, Cardiac/*physiopathology
MH  - Cardiac Complexes, Premature/physiopathology
MH  - Chi-Square Distribution
MH  - *Electrocardiography, Ambulatory
MH  - Female
MH  - *Heart Rate
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Regression Analysis
MH  - Reproducibility of Results
MH  - Signal Processing, Computer-Assisted
MH  - Tachycardia/physiopathology
EDAT- 1991/10/01 00:00
MHDA- 1991/10/01 00:01
CRDT- 1991/10/01 00:00
PHST- 1991/10/01 00:00 [pubmed]
PHST- 1991/10/01 00:01 [medline]
PHST- 1991/10/01 00:00 [entrez]
AID - 10.1253/jcj.55.942 [doi]
PST - ppublish
SO  - Jpn Circ J. 1991 Oct;55(10):942-50. doi: 10.1253/jcj.55.942.