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. 1992 Dec;34(6):541–546.

The effect of i.v. sumatriptan, a selective 5-HT1-receptor agonist on central haemodynamics and the coronary circulation.

P D Macintyre 1, B Bhargava 1, K J Hogg 1, J D Gemmill 1, W S Hillis 1
PMCID: PMC1381457  PMID: 1337261

Abstract

1. Sumatriptan (GR43175) is a selective 5-HT1-receptor agonist effective in the acute treatment of migraine. Vasoactive properties in other vascular beds have been suggested by recent in vitro studies. 2. Its effects on coronary artery dimensions and central haemodynamics were assessed in 10 patients undergoing diagnostic coronary arteriography using digital subtraction angiography and invasive haemodynamic monitoring. 3. Following a 10 min i.v. infusion of sumatriptan to a total dose of 48 micrograms kg-1 there was a significant increase (P < 0.05) in systemic and pulmonary arterial pressures. There was a significant reduction in coronary artery diameter from 4.3 +/- 1.6 mm to 3.6 +/- 1.6 mm 12.9 +/- 6.9% (P < 0.001). There was no significant change in heart rate or ECG morphology. 4. Sumatriptan, a 5-HT1-receptor agonist, causes a vasopressor response in the systemic and pulmonary arterial circulations and coronary artery vasoconstriction; in this study there were no clinical sequelae.

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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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