Why Do Trumpet Players Pass Out? Part II

Five possible causes of passing out with similar conditions to playing and releasing extended high notes on a trumpet.

Material taken from Wikapedia.com

1. Syncope (faint) is a sudden fall of blood pressure resulting in loss of consciousness.

2. Valsalva maneuver or Valsalva manoeuvre. The Valsalva maneuver is performed by attempting to exhale against a closed airway. This can be done by keeping the mouth closed and pinching the nose while trying to breath out. This maneuver greatly increases pressures inside the chest cavity – which stimulates the vagus nerve and increases vagal tone.

3. Orthostatic hypotension, also known as postural hypotension, and colloquially as head rush or dizzy spell, is a form of hypotension in which a person’s blood pressure suddenly falls when standing up or stretching.

4. Hyperventilation can sometimes cause symptoms such as numbness or tingling in the hands, feet and lips, lightheadedness, dizziness, headache, chest pain, flexor spasm of hands and feet,[3] slurred speech, nervous laughter, and sometimes fainting, particularly when accompanied by the Valsalva maneuver.

Notice that I have mentioned FIVE possible causes and have listed only four so far. The fifth will be explained at the conclusion of this post.

from Wikapedia.com-

The vagus nerve also called pneumogastric nerve or cranial nerve X, is the tenth of twelve (excluding CN0) paired cranial nerves. Upon leaving the medulla between the medullary pyramid and the inferior cerebellar peduncle, it extends through the jugular foramen, then passing into the carotid sheath between the internal carotid artery and the internal jugular vein down below the head, to the neck, chest and abdomen, where it contributes to the innervation of the viscera. Besides output to the various organs in the body, the vagus nerve conveys sensory information about the state of the body’s organs to the central nervous system. 80-90% of the nerve fibers in the vagus nerve are afferent (sensory) nerves communicating the state of the viscera to the brain.[1]

The vagus is also called the pneumogastric nerve since it innervates both the lungs and the stomach.

The motor division of the vagus nerve is derived from the basal plate of the embryonic medulla oblongata, while the sensory division originates from the cranial neural crest.

The vagus nerve includes axons which emerge from or converge onto three nuclei of the medulla:

1. The Dorsal nucleus of vagus nerve – which sends parasympathetic output to the viscera, especially the intestines
2. The Nucleus ambiguus – which sends parasympathetic output to the heart (slowing it down) and
3. The Solitary nucleus – which receives afferent taste information and primary afferents from visceral organs

Also from Wikapedia.com-

Nucleus ambiguous
The nucleus ambiguus in its “external formation” contains cholinergic preganglionic parasympathetic neurons for the heart.[1] These neurons are cardioinhibitory.[2]This cardioinhibitory effect is one of the means by which quick changes in blood pressure are achieved by the central nervous system (the primary means being changes in sympathetic nervous system activity, which constricts arterioles and makes the heart pump faster and harder). That is, through integrated and antagonistic system with sympathetic outflow from thevasomotor center of the brainstem, the parasympathetic outflow arising from the nucleus ambiguus and dorsal motor nucleus of the vagus nerve acts to decrease cardiac activity in response to fast increases in blood pressure. The external formation of the nucleus ambiguus also sends bronchoconstrictor fibers to the bronchopulmonary system, which can produce reflexive decreases in pulmonary bronchial airflow. The pathophysiologic relevance of this system, which may act in concert with the cardioinhibitory system, is poorly understood, but likely plays a role in bronchospastic diseases like COPD/emphysema (in which inhaled anticholinergic medications such as Spiriva/tiotropium oripratropium are standard-of-care treatment) and asthma, particularly for exercise-related asthma exacerbations, which may have a component of autonomic dysregulation.

Now that we have seen material which means very little to the average trumpet player, what does it all mean?

Causes not particular to our trumpet situation-

Hyperventilation may be the reason for passing out for anxious moments in a performance can and does bring on lesser symptoms of what we are studying. But the more savvier symptoms of our cases are more aggressive than mere anxiety and we need to look deeper into the cause.

Orthostatic hypotension, although similar to our situation, it does not take into consideration the element of restricted back pressure in the respiratory channel.

Causes similar to playing and releasing high notes-

Syncope certainly fits the form for our study for a sudden drop in blood pressure could be the cause of passing out.

The Valsalva maneuver is performed by attempting to exhale against a closed airway which is exactly what we are doing when sustaining and eventually releasing a high note.

And Now……..

Possable reason #5

All of this information explains how a drop in blood pressure can cause a blackout, but could there be another reason (reason #5) for the drop in blood pressure? Could there be something in the action taken by the player that triggers the loss in blood pressure?

During most of my teaching history, I taught my students that the real cause of a blackout was caused from the expansion of the throat against the blood vessels in that area. I also taught, and still do believe that the release of the note and the sudden decrease in the restrictions in the area of the throat allowed the blood to suddenly resume its travel into the brain which caused the player to become dizzy and possibly pass out.

An additional instruction was that as the feeling of dizziness starts to set in, the player should tuck his/her chin tightly into his/her chest and the affect of the blood pressure change could be substantially minimized.
Fortunately or unfortunately, I have not had the dizziness symptoms for many years and am unable to test this theory. When I was experiencing the dizziness, the “tuck the chin” exercise worked every time.

When trying this movement remember to tuck the chin in tight and stretch the back of the neck as much as possible.
Some might ask “What does this movement have to do with the blood flow. I believe that the “tucked in position” slightly restricts the sudden increase of blood to the brain enough to lessen the sudden impact of the blood rush.

Sounds very brutal doesn’t it?

Let me assure you that it is not as dangerous as it sounds. The only reason I have discussed the “Pass Out” subject is to give you a warning for the only real danger you might be faced with would be waking up to find you might have fallen and damaged your instrument.

Bruce was a member of the faculty at the University of Northern Iowa, School of Music in Cedar Falls from 1969 until his retirement in 1999. He has performed with many well-known entertainers such as Bob Hope, Jim Nabors, Roy Rogers and Dale Evans, Steve Lawrence and Eydie Gorme, Anita Bryant, Carman Cavalara, Victor Borgie, the Four Freshman, Blackstone the Magician, Bobby Vinton and John Davidson.

3 thoughts on “Why Do Trumpet Players Pass Out? Part II

  1. Josh

    Thanks Bruce, very interesting info! I will definitely remember the chin-tuck next time I find myself in this situation.

    Further to the change of blood pressure, have you ever noted (or heard others talk about) having a relationship between the inhilation (after the note has finished) and the onset of a blindingly painful head-surge?

    It would seem that this is a different thing to passing out (since you can often pass out while playing a high-long note, but can’t inhale while holding a high-long note), however, I’m not sure if it is or not.

    I have experienced both fainting and this painful head-surge, and wondered if you know whether they may be the same or different things. Thanks!

  2. James Munroe

    I can verify that the chin tuck does not work — it worsened the condition. I get faint when trying to play high notes even when sitting down. I am first and foremost a trombonist (of over forty years) — I only started seriously taking up the trumpet and flugelhorn in the past year — and this never happens to me even when I play the highest notes in the register of a trombone, only when playing the trumpet or flugelhorn. The difference appears to be in the length of the air column required to fill the respective horns, which bottoms out in my abdomen when playing the trombone, but terminates in mid-thorax (around the solar plexus!) when playing trumpet and flugelhorn. In addition to the danger of damaging the instrument, one can damage oneself considerably during a fall while unconscious. I have no desire to awaken with broken teeth or nose, etc.

    • Bruce Chidester

      Thank you for your comments and I will try to defend my positions.

      Your comments have been placed in quotes.

      “I can verify that the chin tuck does not work — it worsened the condition”.

      Even if it does not work for you, you cannot “verify that the chin tuck doesn’t work” you can only say that it doesn’t work for you.

      “I am first and foremost a trombonist (of over forty years) — I only started seriously taking up the trumpet and flugelhorn in the past year — and this never happens to me even when I play the highest notes in the register of a trombone, only when playing the trumpet or flugelhorn”.

      Congratulations for finally moving from the dark side into the light.

      “The difference appears to be in the length of the air column required to fill the respective horns, which bottoms out in my abdomen when playing the trombone, but terminates in mid-thorax (around the solar plexus!) when playing trumpet and flugelhorn”.

      Oh my! Please let me know how you came to that conclusion. Using your theory, an air column required to play tuba would have to extend three and one half feet out your butt! In all cases the air column extends to the same length which is to the bottom of your lungs.

      “In addition to the danger of damaging the instrument, one can damage oneself considerably during a fall while unconscious. I have no desire to awaken with broken teeth or nose, etc”.

      Well I do agree with you on that statement.
      Have a nice day.

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