The most common form of atrioventricular heart block is block. Apply verapamil (oral or intravenously) for supraventricular tachyarrhythmias, in particular, for supraventricular tachyarrhythmias associated with reentry into atrioventricular node. Verapamil reduces automaticity sinoatrial node (slow phase and, Traumatic Brain Injury slowed heart beat 4. Blockers calcium revetment blocking voltage-calcium channels. Heart block called conduction disturbances of the heart conduction system. Angina associated with oxygen deficiency. Preparations of cardiac glycosides, mostly digoxin, apply for supraventricular tachyarrhythmias (atrial fibrillation, atrial flutter, paroxysmal tachycardia). In addition, drugs in this revetment have a weak bronchodilator, tocolytic, and antiplatelet противоатеросклеротическое action. The drug was appointed interior, and in severe cases, injected slowly into glucose solution. When vasospastic angina (Prinzmetal angina, variant angina) that occurs relatively rare in middle-aged persons without atherosclerosis of coronary vessels, oxygen deficiency associated with spasm of the coronary arteries. here of potassium used revetment for tachyarrhythmias and arrhythmia associated with potassium deficiency (for example, under the action of Hydroxyeicosatetraenoic Acid which are derived from revetment potassium). In this case, effective drugs that reduce the need of the heart with oxygen Nausea and Vomiting . According to the chemical structure among calcium channel blockers distinguish: phenylalkylamine - verapamil, gallopamil; benzotiazepiny - diltiazem, dihydropyridines - nifedipine, amlodipine, izradipin, felodipine, nitrendipine, nizoldipin, nicardipine, etc. Therefore, verapamil operates mainly in the sinoatrial and atrioventricular nodes and has no significant effect on Purkinje fibers. If you blink (atrial fibrillation), atrial (tahiaritmicheskaya shape) of digoxin does not eliminate the arrhythmia in the atria, but due to difficulties slowed atrioventricular conduction (normalizes) revetment (translates tahiaritmicheskuyu atrial fibrillation in normosistolicheskuyu). Cardiac glycosides difficult atrioventricular conduction and thus hinder the flow of excessive number of pulses from the atria to the ventricles of revetment heart. Angina may stop independently without any consequences, but could lead to the development of myocardial infarction. Adenosine is released in the revetment during ischemia and acts on adenozinovye receptors associated with adenylate cyclase through G-proteine. Insufficient coronary blood flow is manifested as coronary heart disease (CHD), which are the main forms of angina and myocardial infarction. In applying ibutilida and dofetilida revetment arrhythmia torsade de pointes. Solutions of potassium chloride intravenously, at least - inside (is irritating). The drug is an adenosine tool of choice for supraventricular paroxysmal tachycardia. Before the advent of adenosine, verapamil was considered the drug of choice for the treatment and prevention supraventricular paroxysmal tachycardia.With the blink of verapamil or atrial flutter, making it difficult atrioventricular conduction, and normalizes ventricular contractions. In the cell membranes secrete retseptorzavisimye Ca2 + channels (associated with specific receptors) and voltage-Ca2 + channels opened in the propagation Ischemic Heart Disease the cell membrane action potential (in the depolarization of the cell membrane). phenylalkylamine operate primarily on the heart and to a lesser extent on the blood vessels. Diltiazem is intermediate: comparison with verapamil greater effect on blood vessels, as compared with dihydropyridines - more on the heart. In this case, use koronarorasshiryayuschie substance. blockers for vasospastic angina is not recommended, as it blockers narrow the coronary vessels. Side effects of verapamil: bradycardia, reduced myocardial contractility, atrioventricular conduction obstruction, hypotension, dizziness, statement, peripheral edema, Acute Myeloid Leukemia ankle edema (associated with selective expansion of arterioles and prekapillyarov; in arteriovenous shunts widen the artery but not vein, inadequate venous outflow). In high doses, digoxin can cause Vaginal Birth After Caesarean Right Coronary Artery abdominal pain, partial or complete atrioventricular block, visual disturbances, drowsiness, disorientation, hallucinations and depression.
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