Doctor insights on:
Medicine For Sustained Ventricular Tachycardias
But more important is looking for the reason you may have non-sustained VT.
This would require a detailed evaluation by your physician. ...Read more
Is an EP study worth the risks in someone with multiple episodes NSVT (Non-Sustained ventricular tachycardia)? What can I gain from this??
Perhaps: If the problem is pathological RFA is possible. But at the moment, without a portable EKG monitoring to show it is significant I would wait. Nonetheless, your own cardiologist is the best advocate, Ask. ...Read more
I've had multiple long runs of monomorphic Non-Sustained Ventricular tachycardia. Echo & stress test normal. What causes this?
Many possible causes: Certainly structural heart disease such as coronary disease or heart muscle disease can cause ventricular tachycardia and in the absence of this electrolyte abnormalities such high or low potassium or magnesium or other conditions such as right ventricular outflow tract navy or brugada syndrome or long QT syndrome or other genetic conditions can cause ventricular tachycardia ...Read more
How can I be tested for Brugada syndrome? ECG has no indication but I've had a few runs of non sustained, monomorphic ventricular tachycardia.
Stress testing: Testing for Brugada requires an EKG to look for the Brugada pattern. If present then Electrophysiologic testing is done to see if the pattern can be induced. It is genetic. Is there a history of sudden cardiac death in your family? Talk to your primary care provider about it. ...Read more
Yea: There is VT foci cardiac ablation, there is scar mapping- if VT is related to scar, there is mapping using pacing- if the VT causes your blood pressure to drop, there are a hand- full of anti arrhythmic medications that can be used and, of course, there is the implantable cardioverter defibrillator. Request to speak with a cardiac electrophysiologist about your options. ...Read more
See below: Normal heart rhythm arises in specialized cells within the right atrium called the sinus node and then is propagated over specialized conducting tissue into both ventricles. When an irritable focus in a ventricle begins firing independently repeatedly or in a repetitive loop, initiating it's own renegade rhythm at a rapid rate, it's called ventricular (where it starts) tachycardia (rate >100). ...Read more
No specific signs: You can not determine if an abnormal heart rhythm is due to VT by how it feels. Vt is, by definition, a fast heart beat so people may feel pounding in their chest. Depending on the rate, they may become dizzy, short of breath, have chest pain, get sweaty and/or pass out. None of these symptoms are specific for vt. The rhythm must be recorded on ekg or on a monitor for definitive diagnosis. ...Read more
Life threatening: Ventricular tachcardia is a life threatening arrythmia. Its the rythm that needs to be "shocked". The pts in persistent v-tach is when shocking or medicine doesn't restore normal sinus rythm. The pt usually expire. ...Read more
VT, long QT: As usual this is far too complcated for the space here. You need an etiologic diagnosis for the arrhythmia and an estimate of the type of long QT syndrome present. There are several genotypes of long QT. Once this is done, there are drugs, electrophysiologic testing/therapy and device therapy all possible as well as anatomic or physiologic therapy depending on what is thought to be the cause ...Read more
Abnormal fast rhythm: Abnormal fast rhythm from the large chambers of the heart which can be life threatening if sustained. ...Read more
Depends: Ventricular tachycardia in the presence of structural hear disease is at risk of sudden death. However V Tach in a normal heart or without underlying heart disease is benign. It can cause palpitation but the risk of death is low. It often originates in the right side of the heart and can be treated with medicine or cured by ablation ...Read more
Not really pulseless: When VT occurs at a fast enough rate, there is inadequate time for ventricular filling, cardiac output falls, and blood pressure falls. You may not be able to palpate a pulse but an arterial line would show a waveform that is reduced in amplitude. Rate is the key. As tissue perfusion fails, acidosis, hypoxemia and hyperkalemia result leading to ventricular fibrillation and death. ...Read more
Atria or ventricles: Supra ventricular tachycardia: from upper chambers of the heart, is due to irritability (increased automaticity) or a short circuit (reentry), heart is usually structurally normal. Ventricular tachycardia: from lower chambers of the heart, due to irritability, can occur in normal hearts but is more often seen in hearts with scar tissue or weak hearts and can be life threatening. ...Read more
It depends: Some types of ventricular tachycardia can be modified or even eliminated with a procedure called an electrophysiologic study. Other types may be more complex and warrant long term medication or an implanted cardioverter-defibrillator. You should have yourself checked by a cardiologist that specializes in arrhythmias (an electrophysiologist) as soon as possible. ...Read more
Ventricular: Not all are dangerous. But some are. In these cases your heart may go into ventricular fibrillation and your heart stops popping blood to your body. Or, in some rare cases, especially you have an additional problem such as weak heart muscle, ventricular tachycardia can kill you. Electrophysiology docs like my self can differentiate ones with risk from none risky ones. ...Read more
Yes: Black-outs (or syncope) are often caused by transient reductions in blood flow to the brain from a variety of causes. With ventricular tachycardia, the abnormal rhythm may be associated with a reduction in cardiac output and a temporary reduction in brain blood flow that can lead to syncope. ...Read more
No/That's a problem!: Ventricular tachycardia is one of the most life-threatening abnormal heart rhythms. It can be associated with angina, but I am sure many doctors here have been called urgently to a hospital patient's bedside with v-tach much to the inquisitive look of the patient as they are wheeled urgently to intensive care for more careful monitoring and treatment. So no, not generally, but it is serious. ...Read more
Origin, prognosis: Supra-ventricular tachycardia originates in the upper chambers of the heart (atria) and ventricular tachycardia in the lower chambers (ventricles). In very general terms, ventricular tachycardia may carry a more worrisome prognosis than its supra-ventricular counterpart but in many cases both types can be treated and in some cases (particularly supra-ventricular) can be "cured". See you doctor. ...Read more
Everything: Svt arises in the atria (the upper chambers) and VT arises in the ventricles (lower chambers). Svt often occurs in otherwise healthy hearts and is annoying but only rarely serious. Vt usually arises in diseased hearts, can be serious, and sometimes is life-threatening. Vt in the setting of a heart attack or acute coronary syndrome is very dangerous. ...Read more
If someone had angina from a quick BP drop but stabilizes will it cause damage or cause ventricular tachycardia?
No permanent injury: If the angina was caused by the blood pressure drop (caused, for example, by a medication), and it resolved (and the heart rhythm was normal) when the blood pressure returned to norma, l it is unlikely it caused permanent damage. However, if the angina was the cause of the blood pressure drop, that would be more concerning. Either way, this needs to be carefully evaluated by a doc. ...Read more
What is the difference between ventricular fibrillation and ventricular re-entrant tachycardia? And which is more severe?
Circulation: Ventricular fibrillation is totally disorganized and does not effectively pump blood. Untreated, this will be fatal. Ventricular tachycardia is organized, and depending on the rate, and the part of the heart it originates from, may be able to generate an effective blood pressure, at least for awhile. Serious, but not always fatal. ...Read more