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TitleSilent Myocardial Ischemia [electronic resource] : Proceedings of the Symposium on New Drugs and Devices October 15-16, 1987, Philadelphia, Pennsylvania / edited by Joel Morganroth, E. Neil Moore
ImprintBoston, MA : Springer US, 1988
Connect tohttp://dx.doi.org/10.1007/978-1-4613-1745-6
Descript XIV, 242 p. online resource

SUMMARY

Although some investigators have questioned the importance and even the existence of silent myocardial ischemia, documentation presented at this two day symposium leaves little doubt about its existence and importance. It has been estimated that about 3 million of the estimated 4 million angina sufferers in the United states have frequent episodes of silent myocardial ischemia. Although it is not possible to define how many Americans die due to silent ischemia, it has been suggested that the mortality rate may exceed hundreds of thousands of victims annually. Unfortunately, there still remains a lack of definitive information as to why some ischemic events are painless. Some suggest the concept that the location and size of the myocardium at jeopardy relates to pain, that the pain threshold varies from patient to patient or that there are neurological deficits in the myocardium of some patients with silent ischemia. Abnormalities in myocardial perfusion and function can occur without pain. An interesting observation presented by several investigators has been that when a coronary artery is occluded in man, no ischemic pain is perceived for the first 30 seconds. Only after a 30 second period or so of occlusion does angina occur. An even more confusing observation is that some 30 second periods of occlusion of the same vessel in the same patient results in angina while the next occlusion can be a totally silent event


CONTENT

I Epidemiology, Pathophysiology, Classification -- 1. Epidemiology and prevalence of silent myocardial ischemia, and prognosis in asymptomatic patients -- 2. Pathophysiology of ischemia: Why are some episodes silent? -- 3. Myocardial ischemia as a useful functional indicator of risk in patients with coronary artery disease -- 4. The diagnostic and prognostic value of exercise ECG and radionuclide markers of ischemia in asymptomatic and symptomatic populations -- 5. An integrated clinical classification for ischemic heart disease: A combined assessment of severity of coronary disease, left ventricular function and myocardial ischemia -- Panel Discussion -- II Detection and Prognosis -- 6. Methods to detect ischemia using ambulatory (Holter) electrocardiography -- 7. The prognostic significance of silent myocardial ischemia during exercise testing -- 8. The role of radionuclide techniques in the evaluation of patients with silent myocardial ischemia -- Panel Discussion -- 9. Longitudinal (natural history) studies of silent myocardial ischemia -- 10. Silent myocardial ischemia and sudden cardiac death -- Panel Discussion -- IV Therapy and FDA Claims -- 11. Antianginal drug therapy for silent myocardial ischemia: Adrenergic blockers and calcium entry blockers -- 12. Therapy for silent ischemia: Nitrates -- 13. What are the FDA requirements to obtain a claim for the indication of silent ischemia? -- Panel Discussion -- V Combination Drug Therapyโ{128}{148}FDA Issues -- 14. Combination drug therapy: What studies are required to obtain approval? -- Participant List


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