Ventricular arrhythmias in ergonovine-induced vasospastic angina

Thyrotoxicosis-induced vasospastic angina.

Ergonovine echocardiography as a screening test for diagnosis of vasospastic angina before coronary angiography.

OBJECTIVES In patients with chest pain suggestive of variant angina, we performed this prospective study to test the specificity and diagnostic validity of ergonovine echocardiography (detection of regional wall motion abnormality during bedside ergonovine challenge) as a screening procedure before coronary angiography. BACKGROUND Spasm provocation test outside the catheterization room has ge...

Vasospastic Angina in Identical Twins

BACKGROUND The clinical conditions of various diseases, including coronary artery disease, are determined by genetics and the environment. Previous investigations noted the significance of genetic mutations and polymorphisms in cases of coronary spasm. CASE REPORT We report on monozygotic identical twins who almost simultaneously presented with vasospastic angina. The 58-year-old younger twin...

Similarities of ergonovine-induced and spontaneous attacks of variant angina.

Ergonovine has been shown to provoke attacks of variant angina, but a question remains whether spontaneous and ergonovine-induced attacks of variant angina are similar. Seven patients with variant angina undergoing cardiac catheterization were studied during transient episodes of spontaneous and ergonovine-induced rest angina with ST-segment elevation. Clinical, electrocardiographic, left ventr...

Renal denervation as a treatment strategy for vasospastic angina induced ventricular tachycardia

Polymorphic ventricular tachycardia can be a detrimental consequence of coronary vasospasm [1]. The pathophysiology of vasospastic angina (VA) is poorly understood, although the disease has been linked to sympathetic hyperactivity [2–4]. We present a 52-year-old male smoker with ventricular fibrillation (VF) 2 years ago. Work-up revealed no signs of structural heart disease or obstructive coronary