Over the last 20 years, it has emerged that, while surgical revascularisation of extensive ischaemic heart disease may have prognostic advantages, the main issues considered regarding individual management are usually...Over the last 20 years, it has emerged that, while surgical revascularisation of extensive ischaemic heart disease may have prognostic advantages, the main issues considered regarding individual management are usually those of symptomatic improvement only. The major impetus towards invasive intervention is therefore failure of prophylactic anti-anginal therapy. On the other hand, many patients, especially the elderly, now present the clinical problem of ongoing angina without residual invasive options. There is an ongoing need for more effective anti-anginal therapies. Of the currently available major classes of prophylactic anti-anginal agents, neither nitrates, β-blockers nor calcium antagonists generally produce marked improvements in exercise duration. Three areas of new therapeutic development in anti-anginal therapy are worthy of note. These involve the sinus node inhibitor ivabradine, high dose allopurinol (xanthine oxidase inhibitor) and a new class of “metabolic modulators” represented by perhexiline, trimetazidine and probably ranolazine. The current review addresses the therapeutic potential of these agents. Notably, all of these “new” drugs are potentially suitable for management of angina in the setting of impaired left ventricular systolic function, and they may also be utilized in patients with angina independent of the presence of coronary disease (for example in hypertrophic cardiomyopathy). The current evidence for efficacy and potential future development in this area are reviewed.展开更多
Medical treatment is the initial treatment strategy and is the cornerstone of management in patients with stable ischemic heart disease (IHD). Many patients are not suitable for percutaneous or surgical revascularizat...Medical treatment is the initial treatment strategy and is the cornerstone of management in patients with stable ischemic heart disease (IHD). Many patients are not suitable for percutaneous or surgical revascularization because of unfavourable anatomy, or the presence of co-morbidities. In addition, many patients have recurrence of angina following revascularization due to restenosis or incomplete revascularization. Furthermore, randomized clinical trials comparing optimal medical treatment to revascularization have not clearly shown that myocardial revascularization is superior to optimal medical treatment. Traditional drugs for angina treatment include b-blockers, calcium channel blockers and nitrates. Newer drugs are available with different mechanisms of action and with equal efficacy that do not cause significant hemodynamic deterioration. The availability of these newer drugs expands the therapeutic potential of medical treatment to even a wider population with stable IHD. Revascularization in patients with stable ischemic heart disease has never been shown to reduce hard endpoints (death or myocardial infarction) in randomized clinical trials.展开更多
文摘Over the last 20 years, it has emerged that, while surgical revascularisation of extensive ischaemic heart disease may have prognostic advantages, the main issues considered regarding individual management are usually those of symptomatic improvement only. The major impetus towards invasive intervention is therefore failure of prophylactic anti-anginal therapy. On the other hand, many patients, especially the elderly, now present the clinical problem of ongoing angina without residual invasive options. There is an ongoing need for more effective anti-anginal therapies. Of the currently available major classes of prophylactic anti-anginal agents, neither nitrates, β-blockers nor calcium antagonists generally produce marked improvements in exercise duration. Three areas of new therapeutic development in anti-anginal therapy are worthy of note. These involve the sinus node inhibitor ivabradine, high dose allopurinol (xanthine oxidase inhibitor) and a new class of “metabolic modulators” represented by perhexiline, trimetazidine and probably ranolazine. The current review addresses the therapeutic potential of these agents. Notably, all of these “new” drugs are potentially suitable for management of angina in the setting of impaired left ventricular systolic function, and they may also be utilized in patients with angina independent of the presence of coronary disease (for example in hypertrophic cardiomyopathy). The current evidence for efficacy and potential future development in this area are reviewed.
文摘Medical treatment is the initial treatment strategy and is the cornerstone of management in patients with stable ischemic heart disease (IHD). Many patients are not suitable for percutaneous or surgical revascularization because of unfavourable anatomy, or the presence of co-morbidities. In addition, many patients have recurrence of angina following revascularization due to restenosis or incomplete revascularization. Furthermore, randomized clinical trials comparing optimal medical treatment to revascularization have not clearly shown that myocardial revascularization is superior to optimal medical treatment. Traditional drugs for angina treatment include b-blockers, calcium channel blockers and nitrates. Newer drugs are available with different mechanisms of action and with equal efficacy that do not cause significant hemodynamic deterioration. The availability of these newer drugs expands the therapeutic potential of medical treatment to even a wider population with stable IHD. Revascularization in patients with stable ischemic heart disease has never been shown to reduce hard endpoints (death or myocardial infarction) in randomized clinical trials.
