Linked Life Data

751723

Source:http://linkedlifedata.com/resource/pubmed/id/751723

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
1979-8-29
pubmed:abstractText
Idioventricular rate, QRS width, site of block and responses to ventricular overdrive pacing were studied in 29 patients with chronic complete heart block in an attempt to distinguish patients liable to syncopal attacks. Ten patients were asymptomatic, 5 gave a history of presyncope and 14 of syncope. Although the mean idioventricular rate of the 10 patients in the narrow QRS group (40.0 per min) was significantly faster than that of the 19 patients in the wide QRS group (35.5 per min; P less than 0.02), the rate did not distinguish symptomatic patients in either the narrow or the wide QRS groups. His bundle studies of the site of block were also unhelpful. Overdrive right ventricular pacing at increasing rates was used to assess ventricular escape times which were not significantly different in symptomatic and asymptomatic wide QRS patients. There was, however, a significant difference in the product of maximum ventricular escape time X overdrive cycle length between symptomatic and asymptomatic narrow QRS patients after 30 s overdrive (3.850+/-1.670 vs 1.070+/-0.475; P less than 0.01); 60 s overdrive (5.020+/-2.170 vs 1.240+/-0.515; P less than 0.01) and 120 s overdrive (6.040+/-2.900 vs 1.460+/-0.275; P less than 0.01) which may have clinical predictive values.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0008-6363
pubmed:author
pubmed:issnType
Print
pubmed:volume
12
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
712-9
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1978
pubmed:articleTitle
Ventricular overdrive suppression of idioventricular rhythm in patients with complete heart block.
pubmed:publicationType
Journal Article