Elicitation of myocardial ischemia by nifedipine in a case of coronary artery fistula.
A 63-year-old woman had chest pain that worsened when nifedipine was given. She was found to have a right coronary-to-thorax angioma/fistula. Acute nifedipine administration elicited precordial symptoms, associated with ischemic changes in the inferior ECG leads and an obvious vasodilatation of the fistulous tract, suggesting that a nifedipine-induced "steal" phenomenon might be responsible for the paradoxic clinical response.
Montorsi
P
P
Istituto di Cardiologia dell'Università, Centro di Studio Ricerche Cardiovascolari del Consiglio Nazionale delle Ricerche, Milan, Italy.
Bartorelli
A
A
Garbagnati
F
F
D003327:Coronary Disease / Q000139:chemically induced* / Q000000981:diagnostic imaging; D003330:Coronary Vessel Anomalies / Q000150:complications*; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008875:Middle Aged; D009543:Nifedipine / Q000009:adverse effects*; D011859:Radiography
D009543:Nifedipine