In addition to weakening the heart, the widowmaker can also make the heart muscle irritable, increasing the risk of abnormal electrical activity like ventricularfibrillation(VFib). VFib is the cause of sudden cardiac death. Normally, the heart beats rhythmically, but in VFib, every cell of the...
In addition to weakening the heart, the widowmaker can also make the heart muscle irritable, increasing the risk of abnormal electrical activity like ventricularfibrillation(VFib). VFib is the cause of sudden cardiac death. Normally, the heart beats rhythmically, but in VFib, every cell of the...
You may even have a heart attack without knowing it. These heart attacks may only register with the individual once an MRI (magnetic scan) or ECG (electrical tracing of the heart) has taken place. Symptomless heart attacks are most common in diabetic people and the elderly. Aside from this...
Anomalous coronary artery.In their normal position, the coronary arteries lie on the surface of the heart. On occasion, in the course of a part, the artery can dive into the heart muscle itself. When the heart muscle contracts, it can temporarily kink the artery and cause angina. Again, d...
Coronary heart disease (CHD) is a group of different types of heart disease. Common heart disease symptoms include chest pain, shortness of breath, palpitations, light-headedness, and dizziness. Heart disease has many causes, including genetics, atherosc
Electricity flows through heart cells to stimulate contraction of the heart muscle. People who have heart disease have hearts that do not conduct electricity normally. An electrocardiogram (EKG or ECG) is a quick, painless, noninvasive test that assesses the electrical behavior of the heart. An ...
heart rate monitor front end, shown in Figure 1, was developed for this kind of low-power wearable application. It includes an instrumentation amplifier with a gain of 100 V/V and a high-pass filter to block the offset voltage generated by the half-cell potential of the electrodes on the...
ECGs provide detailed information regarding the various components (P-, QRS-, and T-wave) of one heartbeat. Single-lead ECGs are more common in the sports world, with a two-electrode chest strap measuring heart activity. ECG waveforms can be detected, but most systems just measure heart ...
heart disease and can manage stable patients who do not need invasive procedures or interventions. These providers also work to help minimize potential risk factors for heart disease, so that it does not develop, or if it is already present, to minimize the progression of the artery blockages....
Heart rhythm disorders are classified according to where they occur in the heart and how they affect the heartbeat. There are twelve types of heart rhythm disorders include Atrial fibrillation (A-fib) ECG of the Abnormal Conduction of the Heart's Electrical System in AFib ...