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. 1977 Oct;39(10):1067–1070. doi: 10.1136/hrt.39.10.1067

Vasodilator therapy in acute myocardial infarction. Use of sublingual isosorbide dinitrate.

R H Baxter, C M Tait, J B McGuinness
PMCID: PMC483371  PMID: 911556

Abstract

The haemodynamic effect of a long-acting vasodilator isosorbide dinitrate has been studied in 10 patients after an acute myocardial infarct, all of whom had evidence of left ventricular failure. Left ventricular filling pressure measured as the mean pulmonary artery wedge pressure was raised in all patients and fell significantly from 20+/-6 to 13+/-5 mmHg (P less than 0-001) within 10 minutes of sublingual isosorbide dinitrate. This 35 per cent fall in left ventricular preload was accompanied by significant fall in mean pulmonary artery pressure from 30+/-7 to 20+/-4 mmHg (P +less than 0-001) and mean right atrial pressure from 11+/-3 to 6+/-2 mmHg but cardiac output measured by thermodilution was unchanged. Mean systemic blood pressure was also significantly reduced. This improvement in left ventricular performance resulting from a reduction in left ventricular filling pressure and systemic blood pressure indicates that there may be a place for long-acting vasodilator in the treatment of acute myocardial infarction.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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