6 天之前 · Vasovagal syncope (vay-zoh-VAY-gul SING-kuh-pee) occurs when you faint because your body overreacts to certain triggers. These may include the sight of blood or extreme …

6 天之前 · Diagnosing vasovagal syncope often begins with a physical exam. During the physical exam, your healthcare professional listens to your heart and takes your blood pressure. Your …

2017年3月18日 · For people with postural tachycardia syndrome, the heart rate goes up considerably higher when they stand, often increasing 30 to 50 beats per minute or more. This …

2024年7月19日 · The most common symptom of long QT syndrome is fainting, also called syncope. A fainting spell from LQTS can happen with little to no warning. Fainting happens …

2023年12月13日 · The most common symptom of Wolff-Parkinson-White (WPW) syndrome is a heart rate greater than 100 beats a minute. In WPW syndrome, the fast heartbeat can begin …

2022年4月30日 · Sick sinus syndrome is a type of heart rhythm disorder. It affects the heart's natural pacemaker (sinus node), which controls the heartbeat. Sick sinus syndrome causes …

2018年11月20日 · Most people with sick sinus syndrome initially have few or no symptoms. In some cases, symptoms come and go. When they occur, sick sinus syndrome signs and …

2017年11月17日 · As you note, one of the most frequent symptoms of long QT syndrome is fainting. The disorder triggers fainting when the heartbeat becomes irregular — usually during …

2024年4月23日 · Micturition syncope, also known as post-micturition syncope, is fainting while urinating or immediately after urinating. This is likely due to a sudden, severe drop in blood …

2024年9月12日 · Serotonin syndrome can occur when you increase the dose of certain medications or start taking a new drug. It's most often caused by combining medications that …