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Synchronized electrical cardioversion is used to treat hemodynamically unstable supraventricular (or narrow complex) tachycardias, including atrial fibrillation and atrial flutter. It is also used in the emergent treatment of wide complex tachycardias, including ventricular tachycardia , when a pulse is present.
Causes: Not known [3] Risk factors: Alcohol, caffeine, nicotine, psychological stress, Wolff-Parkinson-White syndrome [3] Diagnostic method: Electrocardiogram [3] Prevention: Catheter ablation [3] Treatment: Valsalva maneuver, adenosine, calcium channel blockers, synchronized cardioversion [4] Prognosis: Generally good [3] Frequency: 2.3 per ...
Signs and symptoms [ edit ] Patients with heart tumours usually have non-specific symptoms , such as dyspnea (in particular, shortness of breath when lying down), thoracoabdominal pain (pain in the general area around the heart), fatigue, hemoptysis , nausea and vomiting , fever , weight loss, and night sweats.
Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. [3] [4] Cancer can be difficult to diagnose because its signs and symptoms are often nonspecific, meaning they may be general phenomena that do not point directly to a specific disease process.
According to the ACLS protocol, people with WPW who are experiencing rapid abnormal heart rhythms (tachydysrhythmias) may require synchronized electrical cardioversion if they are demonstrating severe signs or symptoms (for example, low blood pressure or lethargy with altered mental status). If they are relatively stable, medication may be used ...
Elderly rodents typically die of cancer or kidney disease, but not of cardiovascular disease. In humans, the relative incidence of cancer increases exponentially with age for most cancers, but levels off or may even decline by age 60–75 [3] (although colon/rectal cancer continues to increase). [4]
Defibrillation or cardioversion may be accomplished by an implantable cardioverter-defibrillator (ICD). Electrical treatment of arrhythmias also includes cardiac pacing. Temporary pacing may be necessary for reversible causes of very slow heartbeats, or bradycardia (for example, from drug overdose or myocardial infarction).
Signs and symptoms depend on the specific type of problem. [100] Symptoms can vary from none to life-threatening. [99] When present they may include rapid breathing, bluish skin, poor weight gain, and feeling tired. [101] It does not cause chest pain. [101] Most congenital heart problems do not occur with other diseases. [100]