Electrocardiogram (ECG or EKG) | American Heart Association
2022年12月7日 · An electrocardiogram — abbreviated as EKG or ECG — measures the electrical activity of the heartbeat. With each beat, an electrical impulse (or “wave”) travels through the heart. This electrical wave causes the muscle to squeeze and pump blood from the heart.
2014年11月15日 · (a) Underdampening of pressure waveforms results when either excessive catheter movement or air bubble oscillations produce artifacts in peaks and dips of the pressure waveform, with falsely elvated systolic pressure. (b) Catheter kink or blood, contrast media, or air in the catheter can result in reduced
Heart Conduction Disorders - American Heart Association
2024年9月24日 · LQTS can cause abnormal heart rhythms in response to exercise or stress. In LQTS, the heart's lower chambers take too long to contract and release. The name comes from letters associated with the waveform created by the heart’s electrical signals. The interval between the letters Q and T defines the action of the ventricles.
Electrocardiogram (ECG or EKG) - American Heart Association CPR …
2022年12月7日 · An electrocardiogram — abbreviated as EKG or ECG — measures the electrical activity of the heartbeat. With each beat, an electrical impulse (or “wave”) travels through the heart. This electrical wave causes the muscle to squeeze and pump blood from the heart.
Echocardiogram (Echo) - American Heart Association
2022年12月7日 · An echocardiogram (echo) uses high frequency sound waves (ultrasound) to make pictures of your heart. The test is also called echocardiography or diagnostic cardiac ultrasound. The types of echocardiograms are: Transthoracic echocardiography; Stress echocardiography; Transesophageal echocardiography; Three-dimensional (3D) …
COVID-19 may increase heart attack and stroke risk for years
2024年10月9日 · People infected with the COVID-19 virus in 2020 may have double the risk for future heart attacks, strokes or premature death from any cause up to three years later – even if they never showed signs of severe illness, according to new research.
Ablation for Arrhythmias - American Heart Association
2024年10月24日 · Ablation for Arrhythmias. Catheter ablation is a procedure that uses radiofrequency energy (similar to microwave heat) to destroy a small area of heart tissue that is causing rapid and irregular heartbeats. Destroying this …
Provide endotracheal intubation or supraglottic advanced airway. Perform waveform capnography or capnometry to confirm and monitor ET tube placement. Once advanced airway is in place, give 1 breath every 6 seconds (10 breaths/min) with continuous chest compressions.
Premature Contractions ‒ PACs and PVCs - American Heart …
2024年9月24日 · Premature beats that start in your heart’s upper chambers are premature atrial contractions, or PACs. Those that start in the lower chambers are premature ventricular contractions, or PVCs. Watch an animation of a normal heartbeat.
Cardioversion - American Heart Association
2024年10月29日 · Cardioversion. If your heart has an irregular (uneven) beat or is beating too fast, cardioversion is a way to restore a regular rhythm. Watch an animation of arrhythmias. There are two kinds of cardioversion. Your doctor may give you one or more medications to bring back your regular heartbeat. This is called pharmacologic (chemical) cardioversion.