Stress-induced polymorphic ventricular tachycardia
Stress-induced Polymorphic Ventricular Tachycardia Stress-induced polymorphic ventricular tachycardia (SIPVT) is a rare cardiac arrhythmia characterized by rapid and irregular heartbeats originating from the ventricles, which are the lower chambers of the heart. This condition is specifically triggered by physical or emotional stress.
Pathophysiology[edit | edit source]
SIPVT occurs due to abnormal electrical activity in the heart. The stress-induced nature of this condition suggests a link to the autonomic nervous system, which regulates heart rate and can be influenced by stress hormones such as adrenaline. The polymorphic nature of the tachycardia indicates that the QRS complexes on an electrocardiogram (ECG) vary in shape and size, distinguishing it from monomorphic ventricular tachycardia.
Symptoms[edit | edit source]
Patients with SIPVT may experience palpitations, dizziness, syncope (fainting), or even sudden cardiac arrest. The symptoms are often precipitated by stress, whether physical exertion or emotional distress.
Diagnosis[edit | edit source]
Diagnosis of SIPVT involves:
- Electrocardiogram (ECG): To detect the characteristic polymorphic ventricular tachycardia.
- Stress Testing: To provoke the arrhythmia under controlled conditions.
- Holter Monitor: Continuous ECG monitoring to capture episodes of tachycardia.
- Genetic Testing: In some cases, to identify underlying genetic mutations that may predispose individuals to this condition.
Treatment[edit | edit source]
Treatment strategies for SIPVT include:
- Beta-blockers: To reduce the effects of adrenaline and other stress hormones on the heart.
- Calcium Channel Blockers: In some cases, to help stabilize heart rhythm.
- Implantable Cardioverter-Defibrillator (ICD): For patients at high risk of sudden cardiac arrest.
- Lifestyle Modifications: Stress management techniques and avoidance of known triggers.
Prognosis[edit | edit source]
The prognosis for individuals with SIPVT varies depending on the frequency and severity of episodes, as well as the effectiveness of treatment. With appropriate management, many patients can lead normal lives.
See Also[edit | edit source]
External Links[edit | edit source]
- [American Heart Association](https://www.heart.org/)
- National Organization for Rare Disorders
NIH genetic and rare disease info[edit source]
Stress-induced polymorphic ventricular tachycardia is a rare disease.
Search WikiMD
Ad.Tired of being Overweight? Try W8MD's physician weight loss program.
Semaglutide (Ozempic / Wegovy and Tirzepatide (Mounjaro / Zepbound) available.
Advertise on WikiMD
|
WikiMD's Wellness Encyclopedia |
| Let Food Be Thy Medicine Medicine Thy Food - Hippocrates |
Translate this page: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
தமிழ்,
తెలుగు,
Urdu,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
বাংলা
European
español,
Deutsch,
français,
Greek,
português do Brasil,
polski,
română,
русский,
Nederlands,
norsk,
svenska,
suomi,
Italian
Middle Eastern & African
عربى,
Turkish,
Persian,
Hebrew,
Afrikaans,
isiZulu,
Kiswahili,
Other
Bulgarian,
Hungarian,
Czech,
Swedish,
മലയാളം,
मराठी,
ਪੰਜਾਬੀ,
ગુજરાતી,
Portuguese,
Ukrainian
Medical Disclaimer: WikiMD is not a substitute for professional medical advice. The information on WikiMD is provided as an information resource only, may be incorrect, outdated or misleading, and is not to be used or relied on for any diagnostic or treatment purposes. Please consult your health care provider before making any healthcare decisions or for guidance about a specific medical condition. WikiMD expressly disclaims responsibility, and shall have no liability, for any damages, loss, injury, or liability whatsoever suffered as a result of your reliance on the information contained in this site. By visiting this site you agree to the foregoing terms and conditions, which may from time to time be changed or supplemented by WikiMD. If you do not agree to the foregoing terms and conditions, you should not enter or use this site. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates Wikipedia, licensed under CC BY SA or similar.
Contributors: Prab R. Tumpati, MD
