Related Experiment Videos
Ischemic heart disease: a patient-specific therapeutic approach with emphasis on quality of life considerations
Insights
Stable angina therapies like surgery and medications offer benefits but also drawbacks. Coronary artery bypass surgery and angioplasty have advantages but also risks, while beta blockers and calcium channel blockers manage symptoms but have side effects.
Area of Science:
- Cardiology
- Pharmacology
- Medical Therapeutics
Background:
- Stable angina significantly impacts quality of life.
- Evaluating treatment efficacy and side effect profiles is crucial.
Purpose of the Study:
- To compare the advantages and disadvantages of various stable angina therapies.
- To assess the impact of treatments on patients' quality of life.
Main Methods:
- Review of existing data on coronary artery bypass surgery (CABS).
- Analysis of percutaneous transluminal coronary angioplasty (PTCA) outcomes.
- Evaluation of beta blockers, calcium blockers, and long-acting nitrates for angina management.
Main Results:
- CABS offers less angina and activity limitation but has graft occlusion risks.
- PTCA has low initial risk but high reocclusion rates and uncertain long-term outcomes.
- Pharmacological therapies (beta blockers, calcium blockers, nitrates) provide symptom control with varying side effect profiles and quality of life impacts.
Conclusions:
- Treatment choice for stable angina requires balancing efficacy, risks, and quality of life.
- Each therapy, including CABS, PTCA, beta blockers, calcium blockers, and nitrates, presents a unique profile of benefits and drawbacks.
Abstract:
Advantages and disadvantages of the various therapies for stable angina are considered with particular attention to quality of life. Advantages of coronary artery bypass surgery (CABS), apart from the question of survival, include less angina, less activity limitation, and less need for drugs than with medical treatment. However, data from the Coronary Artery Surgery Study (CASS) and others show that there is no difference between medical and surgical therapy in return to work and in need for subsequent hospitalization. In CABS patients, there is also predictable return of angina, substantial late vein graft occlusion, and possibly increased progression of native coronary artery disease in grafted vessels. Percutaneous transluminal coronary angioplasty (PTCA) has advantages similar to those of CABS, with very low initial mortality and major complication rates, minimal discomfort, very short disability period, and moderate cost. Its major disadvantages are a high short-term reocclusion rate and uncertain long-term outcome. Beta blockers provide good control of angina, have additional antihypertensive and antiarrhythmic effects, and may be beneficial in preventing sudden cardiac (arrhythmic) death and limiting myocardial infarct size, should these events supervene in the patient with angina. Disadvantages of beta blockers involve the occasional major side effects, including potential exacerbation of bronchospasm, peripheral vascular disease (PVD), diabetes, congestive heart failure and bradyarrhythmia, and frequent "nuisance" side effects. Calcium blockers control both exercise and rest angina and pose no problem in patients with bronchoconstriction, PVD, or diabetes. Disadvantages include need for frequent dosage, cost, and side effects. Long-acting nitrates have few major side effects and usually transient minor side effects, with little effect on quality of life.(ABSTRACT TRUNCATED AT 250 WORDS)