Linked Life Data

1287289

Source:http://linkedlifedata.com/resource/pubmed/id/1287289

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
1993-3-15
pubmed:abstractText
The aim of this study was to assess the diurnal variability of heart rate during VT. For the purpose of this investigation VT was considered to be a minimum of 3 consecutive ventricular beats in duration at a rate more than 100 bpm. From the group of 287 patients with VT during 24-hour ECG monitoring, a selection was made of 52 patients in whom episodes of monomorphic VT occurred in the day-time and night-time without any changes of the QRS morphology. Thirty one patients had ischemic heart disease, 10--dilated cardiomyopathy, 2--mitral valve prolapse and 10 patients had no evidence of heart disease. In these patients the rate of VT (HR-V), basic heart rate (HR-S) before VT, and coupling interval (CI) of VT initiating beat were measured during day-time and night-time. The mean VT rate was 170 +/- 34 bpm during day-time and 149 +/- 36 bpm during night-time (p < 0.001). The mean sinus rhythm rate was significantly (p < 0.001) greater during day-time (88 +/- 16 bpm) than at night (78 +/- 19 bpm). There was significant difference in the mean values of the CI between day-time and night-time (504 +/- 122 vs 589 +/- 181 ms). A significant correlation was noted between HR-V and HR-S at night (r = 0.73; p < 0.001) but not during day-time (r = 0.38). Thus, HR-V similarly as HR-S is greater during day-time than during night-time. Diurnal variability of HR-V may be related to changes in autonomic nervous system tone.
pubmed:language
pol
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0022-9032
pubmed:author
pubmed:issnType
Print
pubmed:volume
37
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
287-90
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
[Diurnal variability of heart rate during paroxysmal ventricular tachycardia].
pubmed:affiliation
Zak?ad Kardiometrii Instytutu Medycyny Wewnetrznej CSK WAM, Warszawie.
pubmed:publicationType
Journal Article, Comparative Study, English Abstract