Ventricular fibrillation

treatment of cardiac arrest. Currently both epinephrine and vasopressin are being evaluated as significant treatments. The American Heart Association Guidelines have been adjusted to reflect these studies over the past 10 years. Within the Ventricular Fibrillation arm of the cardiac arrest algorithm (Link, 2015), step 6 directs for the administration of 1 mg epinephrine IV or IO every 3-5 minutes (See figure 1). The 2010 AHA guidelines allowed for the use of 40 units vasopressin as an option to…

worldwide. Advances in the percutaneous management of coronary artery disease as well as in cardiac surgical techniques have led to improved outcomes with consequent longer life expectancy for patients. Greater numbers of patients with depressed left ventricular function, multiple comorbidities, failed interventional procedures, and prior revascularization operations are now referred for cardiac surgery. As a result, preoperative risk assessment is even more critical to ensure the safe…

Physiological Effects of Monomorphic Ventricular Tachycardia Ventricular tachycardia (VT) is a disease of the heart, in which the heart’s normal rhythmic contraction is altered, changing the heart function (Ideker &Walcott, 1993). It is characterized by having a heartbeat that is too fast, although the disease itself is far more complex (Ideker & Walcott, 1993). Ventricular tachycardia often leads to ventricular fibrillation (VF), and together, they are among the most life threatening cardiac…

Pathology Atrial fibrillation is a common dysrhythmia characterized by disorganized atrial activity without discrete atrial contractions. Extremely rapid impulses bombard the AV node, causing an irregular ventricular response. The heartbeat in atrial fibrillation can range from 100-175 beats per minute (Mayo Clinic, 2015). Atrial fibrillation may occur suddenly and recur, or it may become chronic. It is common in patients with heart failure (Burke, 2016). Risk factors for atrial fibrillation…

senses dangerous fast rhythms. CRT-D can improve the pump 6,7function of the heart and reduce ventricular remodeling. The CRT works by providing electrical impulses that are sent to the left and right 6,7ventricle to improve the timing. Like the pacemaker and ICD the CRT-D generator is implanted in the chest or abdomen. The indications of the CRT and CRT-D are to treat dangerous ventricular arrhythmias, ventricular defibrillation, atrial tachyarrhythmia, heart muscle damage, AV blocks,…

A 70-year-old male patient develops a large anterior wall myocardial infarction. He is currently being managed with oxygen, aspirin, nitrates and a beta-blocker. He develops recurrent episodes of ventricular tachycardia and remains conscious however has dizzy spells and also becomes diaphoretic and hypotensive. An IV bolus of lidocaine is given followed by IV lidocaine infusion. • Which class of antiarrhythmics does lidocaine fall under? Lidocaine is a Class IB antiarrhythmic, fast sodium…

the hospital. His chest pain had resolved prior to arriving in the ED. His medical history is significant for atrial fibrillation, congestive heart failure, hypertension and he has age related macular degeneration. It is to be noted that his hemoglobin is 8.5 and 26.4. On admission he does have a BUN of 29. Cardiac enzymes are negative. He is known to be in atrial fibrillation. He is on Coreg, Digoxin and Pradaxa. It is to be noted in…

study on the effects between physiologic pacing (dual chamber or atrial) and single chamber pacing (ventricular). The researchers were trying to determine whether the physiologic pacing is superior to the single chamber pacing as previous thought. The way they would determine this is to take a sample of patients that will receive one of the above pace makers and compare the results of atrial fibrillation, stroke, or death due to the heart. The researchers gathered their sample by some specific…

the heart rate. Body environment is also important with slow heart rhythm abnormalities.Hypothermia, or low body temperature, is a potential cause. 3. The symptoms of heart rythm disorders are Premature atrial contractions (PACs) and premature ventricular contractions (PVCs) are variations of normal and most often, people are unaware that an extra beat has occurred. However, some patients are keenly aware of any extra heartbeat, even if it is a normal variant and requires no treatment. That…

Dronaderone is the analogue of amiodarone which is used for patients with persistent or paroxysmal atrial fibrillation. It is used for the maintenance of sinus rhythm and persistent or paroxysmal atrial flutter who are in sinus rhythm or undergoing cardioversion after initiation of the drug. Dronaderone (Multaq) is sodium and potassium ion channels blocker, like amiodarone. It is also an alpha and beta adrenergic receptor antagonist. Dronaderone is a benzo furan derivative like amiodarone, with…