What is the drug of choice for monomorphic ventricular tachycardia?
Amiodarone is the drug of choice for the treatment of hemodynamically unstable VT that is refractory to other antiarrhythmic agents.
Does VT always require immediate cardioversion?
Individuals suffering from pulseless VT or unstable VT are hemodynamically compromised and require immediate electric cardioversion to shock them out of the VT rhythm.
Which of the following drugs is used to treat dysrhythmias?
The most common medications in this class are: amiodarone (Cordarone, Pacerone) flecainide (Tambocor) ibutilide (Corvert), which can only be given through IV.
What causes monomorphic ventricular tachycardia?
Monomorphic VT is most commonly seen in patients with underlying structural heart disease. There is typically a zone of slow conduction, most commonly the result of scarring or fibrillar disarray. Causes include prior infarct, any primary cardiomyopathy, surgical scar, hypertrophy, and muscle degeneration.
When do you use adenosine vs amiodarone?
Adenosine—while a proven treatment for PSVT—can be fatal to the patient if the underlying tachyarrhythmia is incorrectly identified. Amiodarone is not the first-line treatment for many narrow complex tachyarrhythmias but it is a proven appropriate alternative that is safe across a wide range of underlying rhythms.
What interventions are used to treat dysrhythmias?
Types of procedures and surgeries used to treat heart arrhythmias include:
- Catheter ablation. In this procedure, the doctor threads one or more catheters through the blood vessels to the heart.
- Pacemaker.
- Implantable cardioverter-defibrillator (ICD).
- Maze procedure.
- Coronary bypass surgery.
Which drugs are used to treat ventricular dysrhythmias select all that apply?
Amiodarone is the drug of choice for ventricular fibrillation and pulseless ventricular tachycardia.
What arrhythmias does amiodarone treat?
Amiodarone is a potent antiarrhythmic agent that is used to treat ventricular arrhythmias and atrial fibrillation. The drug prevents the recurrence of life-threatening ventricular arrhythmias and produces a modest reduction of sudden deaths in high-risk patients.
What is worse Vtach or Vfib?
Ventricular tachycardia is a fast heart rhythm that starts in the lower part of the heart (ventricles). If left untreated, some forms of ventricular tachycardia may get worse and lead to ventricular fibrillation, which can be life-threatening. Ventricular fibrillation is a leading cause of sudden cardiac death. Click to see full answer.
How dangerous is V tach?
Why is V tach dangerous? In some cases, ventricular tachycardia can cause your heart to stop (sudden cardiac arrest), which is a life-threatening medical emergency. This condition usually occurs in people with other heart conditions, such as those who have had a previous heart attack or other structural heart disease (cardiomyopathy).
Can ventricular tachycardia be cured?
Ventricular tachycardia in this situation can be treated with medications, with typically significant reductions in the frequency and duration of episodes. However, some patients do fail medication therapy and can be amenable to “curative” catheter ablation procedures.
What is a V run on ECG?
Do you see concordance present in the precordial leads (V1-V6)?
Amiodarone (Cordarone, Pacerone, Nexterone) Amiodarone is the drug of choice for the treatment of hemodynamically unstable VT that is refractory to other antiarrhythmic agents. Prehospital studies currently suggest that amiodarone is safe and efficacious for use in out-of-hospital cardiac arrest.
How is stable ventricular tachycardia treated?
Sustained ventricular tachycardia often requires urgent medical treatment, as this condition may sometimes lead to sudden cardiac death. Treatment involves restoring a normal heart rate by delivering a jolt of electricity to the heart. This may be done using a defibrillator or with a treatment called cardioversion.
What drug do you give for stable tachycardia?
Adenosine is the primary drug used in the treatment of stable narrow-complex SVT (Supraventricular Tachycardia). Now, adenosine can also be used for regular monomorphic wide-complex tachycardia. When given as a rapid IV bolus, adenosine slows cardiac conduction particularly affecting conduction through the AV node.
Which is the correct treatment for unstable regular monomorphic VT with a pulse?
If the patient with monomorphic VT (regular form and rate) is unstable but has a pulse, treat with synchronized cardioversion. To treat monomorphic VT using a monophasic waveform, provide an initial shock of 100 J.
Is monomorphic ventricular tachycardia stable?
– Stable, monomorphic ventricular tachycardia is defined by a rate faster than 120 beats/min with QRS greater than 120 ms. – Hemodynamically unstable VT requires immediate synchronized direct current cardioversion. – Medical management of hemodynamically stable monomorphic VT is controversial.
What is amiodarone used to treat?
Amiodarone is used to treat life-threatening heart rhythm problems called ventricular arrhythmias. This medicine is used in patients who have already been treated with other medicines that did not work well.
What is monomorphic and polymorphic VT?
VT is considered sustained if it is continuous for at least 30 seconds. If the QRS complex has primarily a single morphology, the VT is monomorphic, whereas if the QRS complex varies, the VT is polymorphic.
What is the drug of choice for ventricular fibrillation?
If the patient remains in ventricular fibrillation, pharmacological treatment should begin. Epinephrine is the first drug given and may be repeated every 3 to 5 minutes. If epinephrine is not effective, the next medication in the algorithm is amiodarone 300 mg.
What drugs are used for chemical cardioversion?
The following are some examples of medicines that your healthcare provider might use: Flecainide, dofetilide, propafenone, amiodarone or ibutilide, for AF. Adenosine or verapamil, for supraventricular tachycardia (SVT)
What is the treatment for polymorphic ventricular tachycardia?
Polymorphic ventricular tachycardia (a.k.a. Torsades de Pointes) is best treated with intravenous magnesium. Patients with a prolonged QT interval have a higher risk of developing polymorphic VT. Remove offending drugs that prolong the QT interval and correct potassium or calcium imbalances as well.
What is the difference between polymorphic and monomorphic?
If the QRS complex has primarily a single morphology, the VT is monomorphic, whereas if the QRS complex varies, the VT is polymorphic. Monomorphic VT is an uncommon condition that underlies the chief complaint in approximately 1 in every 10,000 ED visits.
What is monomorphic and polymorphic?
Due to having more than one possible variation for this gene, it is termed ‘polymorphism’. However, if the jaguar has only one possible trait for that gene, it would be termed “monomorphic”. For example, if there was only one possible skin colour that a jaguar could have, it would be termed monomorphic.
How is monomorphic ventricular tachycardia (VT) treated in unstable patients?
Unstable patients with monomorphic VT should be immediately treated with synchronized direct current (DC) cardioversion, usually at a starting energy dose of 100 J (monophasic; comparable biphasic recommendations are not currently available).
Which medications are used to rule out ventricular tachycardia (VT)?
In the case of stable patients, adenosine can be considered to rule out VT versus broad QRS supraventricular tachycardia (SVT). If the adenosine converts the arrhythmia, it is not VT. Referring to stable patients, other pharmacologic agents are commonly used. The following doses have been recommended:
What is the QRS of monomorphic ventricular tachycardia?
Monomorphic ventricular tachycardia will have QRS complexes greater than or equal to .12 second (120 milliseconds). These QRS complexes appear uniform and symmetrical. This suggests that the impulses and/or circuitry of the heart is causing complexes to originate in the same area of the ventricle.
What is cardioversion in acute ventricular tachycardia?
Cardioversion in Acute Ventricular Tachycardia. The acute emphasis in patients with ventricular tachycardia (VT) is on achieving an accurate diagnosis and conversion to sinus rhythm. VT associated with loss of consciousness or hypotension is a medical emergency necessitating immediate cardioversion.