Beta blockers are the medications which influence on the response of the body to particular nerve impulses. This reduces the rate and force of the heart’s contractions, which diminishes blood pressure and reduces the heart’s demand for oxygen. Beta blockers are used above all in the treatment of hypertension, tachyarrhythmia, angina pectoris, hypertrophic subaortic stenosis, MI (prevention), glaucoma (ophthalmic use), migraine headache (prophylaxis),
CHF (carvedilol and sustained-release metopolol only) and hyperthyroidism etc. It has been stated that unless they are contraindicated, beta blockers should be taken into consideration as a basis of treatment in such patients in order to improve symptoms and mortality as well as reduce hospitalizations. There is compelling evidence now that beta-blocker therapy is safe and effective.
Beta-blockers diminish stress on the heart by reducing its workload. According to recent studies, beta-blockers are valuable in avoiding second heart attacks. Evidence emphasizing the benefits of using it in the chronic post-MI period is very powerful. It has now been averred that the benefits of beta blockers therapy in lowering mortality and reinfarction outweigh their risks, even in sufferers with relative contraindications like diabetes, asthma, severe peripheral vascular disease, mellitus, and severe or moderate left ventricular failure. Therefore, according to current guidelines for treatment of CHF, beta blockers are standard therapy for people suffering from mild to moderate heart failure.
Beta blockers are also of meaningful importance in the cure of hyperthyroidism. Both propranolol and atenolol from the group of beta blockers are beneficial for this purpose. These medications do not act on the thyroid gland itself, but they quickly stop the effects of the high hormone levels on the heart muscle, nervous systems as well as other organs. Therefore, beta blockers are helpful with controlling the heart racing, shakes, palpitations, and some of the psychological issues which develop with hyperthyroidism.
Evidence has been not uncovered yet proving that beta blockers improve mortality in burn sufferers. Beta blockers weaken hypermetabolic states in children who experienced burns, and the perioperative use in some adult cases has presented beneficial effects, which proves that they are able to improve burn effects. A new research also suggest that the beta blocker therapy may also diminish the risk of a broken bone. Treatment with beta blocker plus
a diuretic is able to lessen the risk of bone break even more.
Beta blockers are regarded to be the first line medications in the cure of hypertension.
They are very effective in diminishing the cardiovascular complications of hypertension.
It is indicated that beta blockers ought to be used in hypertension include myocardial infarction or angina as well as heart failure.
Beta blockers are also used to cure open-angle glaucoma. They show high effectiveness and they are usually well-tolerated. In glaucoma, beta blockers decrease the pressure inside the eye by lessening the fluid in the eye.
Nowadays, it is very common to use beta blockers as a cure for migraine. Propranolol, atenolol and metoprolol are the forms of beta blockers used for migraines. It was noticed that patients experiencing angina and migraine who took propranolol observed improvement.
Beta blockers are also prevalent in the treatment of patients suffering from idiopathic hypertrophic subaortic stenosis, also known as hypertrophic cardiomyopathy. These beta blockers decrease the inotropic state of the left ventricle, reduce diastolic dysfunction and boost left ventricle compliance, thereby lessening pressure gradient across the left ventricle outflow tract. They also reduce myocardial oxygen consumption and lessen the heart rate and, as a result, myocardial ischemia potential is also reduced.
Beta blockers, such as esmolol, atenolol, metoprolol and nadolol are also very useful in treatment of tachyarrhythmia.
Beta blockers are also commonly used for the angina pectoris. The disease is characterized by chest pain which is caused by an imbalance between the amount of delivered oxygen and its demand and usually results from the failure of atherosclerotic coronary arteries to perfuse the heart under the conditions of boosted myocardial oxygen consumption. The therapeutic effect can result from an inhibition of betal receptor mediated stimulation of heart rate and myocardial contractility, causing an improved oxygen requirement and supply balance in the myocardium.
As we see, beta blockers are used for a numerous ailments. However, it has to be emphasized that beta blockers should not be taken without doctor’s approval, because inappropriate amounts of the medicines may cause side effects. A number of beta blockers have to be taken only once a day while others may be taken more often. Whatever the dosage of beta blockers is, its effectiveness and importance in the treatment of numerous diseases cannot be denied.
