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A premature ventricular contraction (PVC) is a common event where the heartbeat is initiated by Purkinje fibers in the ventricles rather than by the sinoatrial node. PVCs may cause no symptoms or may be perceived as a "skipped beat" or felt as palpitations in the chest. PVCs do not usually pose any danger. [1]
This is a list of drugs and substances that are known or suspected to cause Stevens–Johnson syndrome This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources .
The onset of symptoms can occasionally be gradual rather than sudden. [8] The cause of pericarditis often remains unknown but is believed to be most often due to a viral infection. [4] [8] Other causes include bacterial infections such as tuberculosis, uremic pericarditis, heart attack, cancer, autoimmune disorders, and chest trauma.
A heart attack can cause symptoms such as: Chest pain that often radiates to your left shoulder, neck, or arm. Abdominal pain. Shortness of breath. Fatigue. Pressure or heaviness in your chest ...
Larger ones can cause a range of symptoms, including chills. Sometimes, you might have a fever, too. Other signs of kidney stones include pain on either side of your lower back, bloody or cloudy ...
Myocarditis can progress to inflammatory cardiomyopathy when there is associated ventricular remodeling and cardiac dysfunction due to chronic inflammation. [6] [7] Symptoms can include shortness of breath, chest pain, decreased ability to exercise, and an irregular heartbeat. [1] The duration of problems can vary from hours to months.
Ventriculitis can cause a wide variety of short-term symptoms and long-term side effects ranging from headaches and dizziness to unconsciousness and death if not treated early. It is treated with some appropriate combination of antibiotics in order to rid the patient of the underlying infection. Much of the current research involving ...
In people without underlying heart disease and who do not have any symptoms, bigeminy in itself does not require any treatment. If it does become symptomatic, beta-blockers can be used to try to suppress ventricular ectopy. Class I and III agents are generally avoided as they can provoke more serious arrhythmias. [4]