Vasovagal Syncope

Vasovagal syncope is fainting caused due to drop in blood pressure and decreased blood supply to the brain. The drop in blood pressure is caused due to alteration in the nerve signals to the heart. Prolonged standing, intense heat, dehydration, fasting, etc., are the cause of vasovagal syncope.

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Why did my 14-year-old daughter faint in the morning?

Query: Hello doctor,My 14 years old daughter fainted three days back in the morning when she woke up to study for her test. Her pulse was normal during the episode. She is okay now, but I want to know what could have caused it to prevent further occurence.  Read Full »


Dr. Hardika Kothari

Answer: Hello, Welcome to icliniq.com. I hope she is doing fine now. There are numerous causes for fainting (syncope), such as dehydration due to improper intake of water, anemia, or menstrual cycle may also lead to syncope in female adolescents. It can also be due to vasovagal, which is the emotional ups...  Read Full »

What caused the four-second arrhythmia when I stood up?

Query: Hello doctor, I am a 17-year-old male. About a month ago, I passed out after watching a movie first responders came and said I was fine until they asked me to stand up, and that is when a four-second arrhythmia occurred. I was rushed to the emergency room and was told I needed a pacemaker, and the...  Read Full »


Dr. Muhammad Zohaib Siddiq

Answer: Hi, Welcome to icliniq.com. Thanks for the query. The transient loss of consciousness with loss of postural tone but with spontaneous and complete recovery is called syncope. The most common in the general population is vasovagal syncope. Please answer some questions so that I may rule out the ca...  Read Full »

Is it normal for the heart to stop for 11 seconds during vasovagal syncope?

Query: Hi doctor,I am a 21-year-old male and take no medications. Four years ago, I started having vasovagal syncope episodes that have increased in frequency over the years, and I have now passed out from it around ten times. My triggers for it are blood, needles, and damage to the wrists. My clinic recom...  Read Full »


Dr. Muhammad Zohaib Siddiq

Answer: Hi, Welcome to icliniq.com. Thanks for the query. 1. First thing you should know is that vasovagal syncope is not dangerous. Try to avoid circumstances that lead to syncope. 2. When you feel that you are having syncope (prodrome), escape from that area or scene. Sit down on the floor in a squatt...  Read Full »

Before two weeks, I fainted for a prolonged period on my bed. Is it due to vasovagal syncope?

Query: Hi doctor,I am 17 years old. Before two weeks, I got fainted in bed for a prolonged period. After standing, I went to emergency and I was diagnosed with arrhythmia. The doctor told me that I need to have a pacemaker. Then I went for a second opinion and the doctor told me that it is a simple case of...  Read Full »


Dr. Ilir Sharka

Answer: Hi, Welcome to icliniq.com. It seems to be a vasovagal episode and it leads to loss of consciousness. This gets support from postural tachycardia. It is necessary to review the cause of the arrhythmia. A cardiac ultrasound can be done. A tilt test and holter monitor can be done to identify the cau...  Read Full »

I did a tilt tablet test to diagnose POTS. Please give your opinion.

Query: Hi doctor, I had a tilt table test recently. The interpretation was normal. I had a rest time of ten minutes to relax before having a tilt. My resting heart rate was 80 beats per minute before doing the test. My heart rate got raised to 126 beats per minute during the tilt. At home, I had a resting...  Read Full »


Dr. Muhammad Zohaib Siddiq

Answer: Hi, Welcome to icliniq.com. A tilt table test (TTT) is usually done to diagnose vasovagal syncope and postural drop in blood pressure. In vasovagal syncope, when the heart rate decreases or when the blood pressure drops, both lead to dizziness and syncope (transient loss of consciousness). Normall...  Read Full »

I feel extreme muscle tension and blackout after extreme laugh. Is this concerning issue?

Query: Hello doctor, While playing a game something happened that caused me to laugh extremely hard. It was just one yelp or laugh, but it was very strenuous, I could feel a lot of muscle tension if I remember correctly. I could tell I was about to blackout or pass out, my vision started to fade away, bu...  Read Full »


Dr. Suresh Kumar G D

Answer: Hello, Welcome to icliniq.com. You have posted an interesting and unusual query. At the outset, your description of the event does not look worrying. You have done some relevant research. It is true that sometimes laughter can induce vasovagal syncope. It can happen with any extreme emotion, s...  Read Full »

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