Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1976-8-23
pubmed:abstractText
Repeated recordings were made of the apexcardiogram throughout the first month after myocardial infarction in 30 patients. The classical timed intervals of the systolic wave are open to some criticism. The systolic waveforms are important. In the majority of transmural anterior infarctions there is a rounded appearance to the beginning of the wave which seems to prolong the electromechanical latency, followed by a late systolic bulge, or a domed waveform. This signifies a non-contractile area, and not neccessarily an ectasia. The early diastolic "peaktrough" appearance, found very frequently wherever the necrosis is situated, is indicative of asynergic contraction of the left ventricle. All of the diastolic phases are altered, probably by increased parietal stiffness: the TRI is lengthened; the "F" wave is flattened (and often absent later on in the condition), its duration is shortened over the anterior positions, and it may contain a shallow dip if there is LVF; the stasis wave is very feeble; the "a" wave is large when the infarct is extensive, or when there is LVF, or when there is longstanding hypertension. Enlargement of the "a" wave is especially indicative of a lowering of the performance of the left ventricle.
pubmed:language
fre
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0003-9683
pubmed:author
pubmed:issnType
Print
pubmed:volume
69
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
357-65
pubmed:dateRevised
2009-2-13
pubmed:meshHeading
pubmed:year
1976
pubmed:articleTitle
[Phonomecanography in recent myocardial infarction. Ventricular mechanic curve].
pubmed:publicationType
Journal Article, Comparative Study, English Abstract