Coronary vasospasm can persist during IV nitroglycerin infusion despite chest pain resolution, but may respond to intracoronary nitroglycerin.
IV nitroglycerin may fail to relieve coronary vasospasm despite pain resolution; this case report leaves open the role of intracoronary administration.
We present a case of coronary artery vasospasm occurring during cardiac catheterization, which occurred while the patient was receiving substantial doses of intravenous nitroglycerin. Continued coronary artery vasospasm despite resolution of chest pain and response of vasospasm to intracoronary nitroglycerin are important clinical points.
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Hom et al. (1985) studied this question.
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