Cardiac Diagnostic Tests Because the electrical system of the heart is complex, cardiologists or heart rhythm experts who use special testing equipment are required to diagnose abnormal heart rhythm (arrhythmias). To unearth the problem, the physician will ask about symptoms. obtain a medical history, give a thorough physical exam, and order the following [...]
22
Aug
Fainting Part II of II
Signs of Cardiovascular Syncope Cardiovascular syncope usually occurs suddenly. There might not be any warning signs that person is about to faint. Some individuals may feel the following: Pressure, tightness, chest discomfort, and/or pain Heart palpitations (feels like a fluttering, racing, or pounding sensation in your heart) Shortness of breath Long QT Syndrome and Cardiovascular Syncope Fainting is [...]
19
Aug
Fainting Part I of II
Fainting Fainting (syncope), a sudden loss of consciousness, most often occurs when blood pressure is too low (hypotension) so the heart doesn’t pump enough oxygen to the brain. Typically, a fainting spell will last only a few seconds or minutes, before the individual regains consciousness. Fainting is quite common and usually a single spell isn’t serious. It [...]
16
Aug
Arrhythmia Symptoms
Arrhythmia Symptoms Some arrhythmias can occur without even knowing it, while others may cause the feeling of the lightheadedness, heart “racing,” or dizziness. At some point, many adults have had short lived heart rhythm changes. Certain heart rhythms, especially the ones that last long enough to affect the function of the heart, can be serious [...]
13
Aug
Substances & Heart Rhythm Disorders
Substances & Heart Rhythm Disorders There are many substances that may affect the electrical system of the heart and change its ability to pump blood effectively throughout the body. Many prescription, over-the-counter and illegal drugs, as well as tobacco, certain foods, alcohol and other substances, may affect the heart’s electrical signals that trigger it [...]
10
Aug
Heart Failure
Heart failure, also known as congestive heart failure (CHF), is a common and serious condition that is usually due to weak heart muscle pumping. Ineffective heart pumping function can cause swelling legs, fatigue, difficulty breathing and trouble exercising. Heart surgery, lifestyle changes, and medications can sometimes help with symptoms, but because many individuals with heart failure also [...]
07
Aug
Sick Sinus Syndrome
Sick sinus syndrome (SSS) is not a relatively common heart rhythm disorder. SSS isn’t a specific disease, but rather a group of symptoms or signs that indicate the sinus node, the heart’s natural pacemaker, isn’t functioning properly. An individual with SSS may have a heart rhythm that is beating too slow (bradycardia), too fast (tachycardia), or a [...]
04
Aug
Heart Block
Heart block is a heart rhythm where the heart beats slower than normal (bradycardia). In this condition, the electrical impulses that inform the heart to contract are totally or partially blocked between the atria and the ventricles. This is why heart block is also called atrioventricular block (AV block). What is Heart Block? In normal [...]
01
Aug
Atrial Flutter
Atrial Flutter Atrial flutter (AFL) is a common abnormal heart rhythm, that similar to atrial fibrillation, is a supraventricular (ie. above the ventricles) tachycardia (rapid heart beats). In AFL, the upper chambers (atria) of the heart beat fast, resulting in atrial muscle contractions that are out of sync and faster than the lower chambers (ventricles). What is Atrial Flutter? [...]
28
Jul
Sudden Cardiac Arrest Part II of II
Every Minute Counts During SCA, the amount of time it takes to get treatment and help is the difference between life and death. 95% of individuals who experience SCA die because life-saving defibrillation is not received within four to six minutes, before brain and permanent death occur. If a SCA emergency is suspected, these steps should be followed: [...]
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