What is non-sustained VT?
Non-sustained ventricular tachycardia (NSVT) is a common arrhythmia encountered in modern clinical cardiology. In general, NSVT is defined as 3 or more consecutive ventricular beats with an RR interval of 600 ms and lasting <30 second.
What is the drug most commonly used to treat ventricular tachycardia?
Amiodarone (Cordarone, Pacerone, Nexterone) Amiodarone is the drug of choice for the treatment of hemodynamically unstable VT that is refractory to other antiarrhythmic agents.
Is NSVT life threatening?
In some settings, NSVT is a marker of increased risk for subsequent sustained tachyarrhythmias and sudden cardiac death. In other settings they have no prognostic significance. NSVT in the presence of structural heart disease carries a more serious prognosis than in the absence of cardiac abnormality.
Can anxiety cause non sustained ventricular tachycardia?
Emotional stressors can lead to ventricular ectopic beats and ventricular tachycardia. Though disturbances of cardiac rhythm due to emotional stress are often transient, sometimes the consequences can be seriously damaging and even fatal .
How many PVCs in a row does it take to have Vtach?
Three or more PVCs in a row at what would be a rate of over 100 beats per minute is called ventricular tachycardia (V-tach).
When do ventricular premature beats ( VPB ) occur?
Ventricular premature beats (VPBs), also called premature ventricular contractions (PVC), may occur erratically or at predictable intervals (eg, every 3rd [trigeminy] or 2nd [bigeminy] beat). VPBs may increase with stimulants (eg, anxiety, stress, alcohol, caffeine, sympathomimetic drugs), hypoxia, or electrolyte abnormalities.
What is the difference between vfib and pulseless ventricular tachycardia?
Ventricular Fibrillation and Pulseless Ventricular Tachycardia Ventricular fibrillation (VF) and pulseless ventricular tachycardia (VT) are life-threatening cardiac rhythms that result in ineffective ventricular contractions. VFib (Figure 24) is a rapid quivering of the ventricular walls that prevents them from pumping.
What is the P wave morphology of focal atrial tachycardia?
Focal atrial tachycardia: There is a narrow complex tachycardia at 120 bpm Each QRS complex is preceded by an abnormal P wave — upright in V1, inverted in the inferior leads II, III and aVF P wave morphology is consistent throughout
When to treat premature ventricular complexes without tachycardia?
In patients without established cardiac disease, the occurrence of premature ventricular complexes without sustained ventricular tachycardia is more an annoyance than a medical risk, and treatment is not required.