Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1979-9-1
pubmed:abstractText
The QRS complex and ST segment in the ECGs of 80 patients who died of an acute myocardial infarction (MI) were studied in relation to the extent of the MI (subendocardial vs. transmural). Changes in the QRS complex developed in nine out of the 15 cases with an acute subendocardial MI. Five of these cases fulfilled the conventional QRS criteria for a myocardial infarction. A definite ST segment depression (a J point depression of 2 mm. or more in at least one lead, and a horizontal or downward sloping ST segment with a minimum duration of 0.08 sec.) occurred most frequently in connection with a circumferential subendocardial MI (88 per cent), but it was also found in a regional subendocardial (43 per cent) and transmural MI (43 per cent). In 17 per cent of the cases with a transmural MI, this was the only ECG abnormality. It is concluded that cases with a subendocardial MI cannot always be distinguished from transmural MI on the basis of the presence or absence of the QRS changes, and that an ST segment depression, as defined in this study, can give additional information in the evaluation of an acute phase of an MI.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0002-8703
pubmed:author
pubmed:issnType
Print
pubmed:volume
98
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
176-84
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1979
pubmed:articleTitle
Changes in the QRS complex and ST segment in transmural and subendocardial myocardial infarctions. A clinicopathologic study.
pubmed:publicationType
Journal Article