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Chen JP, Hou D. Subvalvular stenosis after aortic valve replacement. CONGESTIVE HEART FAILURE (GREENWICH, CONN.) 2008; 14:214-218. [PMID: 18772628 DOI: 10.1111/j.1751-7133.2008.07691.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Affiliation(s)
- Jack P Chen
- Department of Cardiology, Saint Joseph's Hospital, Atlanta, GA, USA.
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Raggi P, Rodney E, El-Jandali A, Vasavada BC, Sacchi TJ. Myocardial Infarction and Dynamic Left Ventricular Outflow Obstruction Induced by Bronchodilator Therapy. J Pharm Technol 1995. [DOI: 10.1177/875512259501100209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Objective: To report a case of myocardial infarction with patent coronary arteries and left ventricular outflow obstruction induced by a combination of aminophylline and beta2-agonists treatment. Case Summary: A 61-year-old woman, without risk factors for coronary artery disease, was admitted with an exacerbation of bronchial asthma. She received intravenous aminophylline and aerosolized beta2-agonists. She developed hemodynamic and echocardiographic features of obstructive hypertrophic cardiomyopathy and had a myocardial infarction. Her serum theophylline concentration was normal. At cardiac catheterization the coronary arteries were patent and the obstructive features disappeared when the asthma drug treatment was discontinued. Discussion: This case describes the occurrence of a very unusual combination of cardiovascular adverse effects induced by drugs widely used for treatment of bronchial asthma. Aminophylline and beta2-agonists can cause myocardial ischemia by inducing tachycardia, hypercontractility, and coronary artery spasm. Conclusions: Aminophylline and beta2-agonists can induce severe and life-threatening myocardial ischemia, even when used at therapeutic drug concentrations.
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