The main cause of presyncope is a lack of blood flow to your brain. If blood flow to your brain stops for six to eight seconds, you pass out.

14 сент. 2023 г. · Presyncope is feeling like you are going to pass out. Learn what causes it, how it's treated, and more.

Presyncope (or near syncope) refers to the feeling of impending LoC without losing consciousness. Several symptoms and physical signs contribute to this ...

18 сент. 2019 г. · Presyncope is the sensation of feeling faint without fainting. Although it's often a benign event, it can sometimes be a sign of a more ...

Presyncope occurs when a person feels like they are about to faint but do not actually lose consciousness. Someone with presyncope may experience ...

The most uniform definition is “feeling like one was going to pass out but without actual loss of consciousness.” Near syncope can last for seconds to minutes.

Pre-syncope is the feeling that you are about to faint. Someone with pre-syncope may be lightheaded (dizzy) or nauseated, have a visual "gray out" or trouble ...

14 нояб. 2019 г. · The symptoms preceding loss of consciousness are known as presyncope and can last for a few seconds before the onset of vasovagal and ...

Presyncope is a medical condition characterized by a feeling of light-headedness or impending fainting, but without actually losing consciousness.

8 авг. 2022 г. · Lightheadedness (presyncope) is a symptom that may indicate a heart problem or other cardiovascular, neurological, metabolic, ...