rachelscott51
Contributor
I just heard on the news that a diver died just south of Vashon Island today. He was diving off a boat named Sampan. Anyone have any news?
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wolf eel:I have absolute respect for the family and the lose.
I was wondering if anybody may know what kind of seals did he have.? Latex or tuck ?
As I was talking with someone the other day about the tightness around the throat and how that will induce certain action in the body. There is no disrespect just asking.
Cheers
Derek
[Scuba_freak Restrictions in neck seals causes what called Carotid Sinus Reflex.
Can cause you to black out.
Read the following (www.deepocean.net)
Blood pressure is monitored by receptors called the carotid-sinus receptors, which are located in the carotid arteries. The carotid arteries branch up from each side of the neck, leading to the brain. If blood pressure is high, the carotid-sinus receptors signal the cardioinhibitory center in the brain, which slow down the heart rate and causes vasodilatation (widening of the blood vessels). Low blood pressure stops the signaling of the cardioinhibitory center and heart rate goes up again.
Problems may occur if a divers suit or other equipment is to tight around the neck. The resulting pressure may incorrectly be interpreted by the carotid-sinus receptors as high blood pressure, resulting in a stimulation of the cardioinhibitory centers and a lowering heart rate. Less blood flows to the brain. Since the pressure persists, less blood keeps flowing to the brain. Symptoms are discomfort, light-headedness and eventually loss of consciousness.
My thoughts with his family.
SF]
This sounds like a serious problem. However, if the diver did clutch his chest or heart at depth (and 110' is deep) it sounds to me more like the problem was either his heart, and/or his lungs directly rather than indirectly. Having seen deaths offshore (too many), it sounds like a cliche when you describe the typical heart attack victim but they are generally overweight, and generally smokers. The first symptoms of a heart attack often manifest as "indigestion" - something commonly found by over-eaters. These are minor warning attacks. The major attack can quickly cause loss of concious.Scuba_freak:Blood pressure is monitored by receptors called the carotid-sinus receptors, which are located in the carotid arteries. The carotid arteries branch up from each side of the neck, leading to the brain. If blood pressure is high, the carotid-sinus receptors signal the cardioinhibitory center in the brain, which slow down the heart rate and causes vasodilatation (widening of the blood vessels). Low blood pressure stops the signaling of the cardioinhibitory center and heart rate goes up again.
Problems may occur if a divers suit or other equipment is to tight around the neck. The resulting pressure may incorrectly be interpreted by the carotid-sinus receptors as high blood pressure, resulting in a stimulation of the cardioinhibitory centers and a lowering heart rate. Less blood flows to the brain. Since the pressure persists, less blood keeps flowing to the brain. Symptoms are discomfort, light-headedness and eventually loss of consciousness.