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Is it normal to hold a deep breath and start

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Posted on Fri, 22 Mar 2019
Question: Is it normal to hold a deep breath and start to pass out? I can feel my pulse in my neck and take a deep breath and hold it, after 5 seconds or so, I can’t feel the pulse in my neck anymore
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Answered by Dr. Ilir Sharka (1 hour later)
Brief Answer:
It is a physiological effects more pronounced in certain individuals.

Detailed Answer:
Hello!

Welcome on -Ask a Doctor- service!

Regarding your issue of concern, I would like to confirm your physiological connection between the forceful contained deep breathing and fainting.

This situation induces a Valsalva maneuver leading to decreased blood pressure at the level of aorta, which in turn may be reflected as decreased cerebral blood flow.

When this phenomenon is exaggerated, it may lead near fainting and even syncope.

This is more pronounced in some sensitive individuals.

Coming to this point, I recommend avoiding such stressful situations and a better control of your blood pressure values.

Hope to have clarified some of your uncertainties!

Kind regards,

Dr. Iliri




Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Ilir Sharka

Cardiologist

Practicing since :2001

Answered : 7434 Questions

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Is it normal to hold a deep breath and start

Brief Answer: It is a physiological effects more pronounced in certain individuals. Detailed Answer: Hello! Welcome on -Ask a Doctor- service! Regarding your issue of concern, I would like to confirm your physiological connection between the forceful contained deep breathing and fainting. This situation induces a Valsalva maneuver leading to decreased blood pressure at the level of aorta, which in turn may be reflected as decreased cerebral blood flow. When this phenomenon is exaggerated, it may lead near fainting and even syncope. This is more pronounced in some sensitive individuals. Coming to this point, I recommend avoiding such stressful situations and a better control of your blood pressure values. Hope to have clarified some of your uncertainties! Kind regards, Dr. Iliri