Modern medicine and diagnostics nightmare "by the top specialists in the world".

1. The guy faints when he is SITTING and in the middle of discussing where to get coffee. He is NOT standing, his blood isn't pooled into his extremities, therefore not causing his BP to drop, he is not stressed. WE DISREGARD ALL that and still think it could be Vasovagal syncope.

Okay! Lets do Tilt Table Test.

2. "..typical scenario.... your blood pressure starts to drop...and his fainting caused by reduced blood flow to the brain...." , so TTT should show us what happens to his HR and BP when he is STANDING, BUT NOT TO THE FLOW OF BLOOD TO HIS BRAIN; remember, he faints in a sitting position.

In true Postural Orthostatic Tachycardia Syndrome (POTS), NOT VASOVAGAL SYNCOPE, a person faints while STANDING, BUT his BP remains NORMAL. Yes, HR goes up, blood pools into legs, BUT BP remains normal..and the person faints. In Vasovagal syncope, his BP DROPS. Who knows what is going on systemwide when a person experiencing Cerebral syncope.

3. In his case, he is investigated for Vasovagal syncope, not POTS. His doctor doesn't even mention POTS. Then he tells us that fainting is typically caused by reduced blood flow to the brain. Typically? Based on what ?? On assumption I guess. I don't see any transcranial dopplers (TCD) during TTT procedure. TCD is a non-invasive, painless ultrasound technique that uses high-frequency sound waves to measure the rate and direction of blood flow inside vessels. They don't use TCD during his TTT, yet make conclusions about blood flow!?!

4. So we have no idea if blood vessels in his brain constrict or dilate when he passes out.

The existing theories of cerebral blood flow autoregulation would have predicted a sudden cerebral arteriolar vasodilation at the time of syncope, in order to help preserve cerebral perfusion. Instead, what was uniformly reported was a sudden significant increase in cerebral vascular resistance (signifying arteriolar vasoconstriction) as measured by TCD, which occurred concomitant with the loss of consciousness. They even call it "A Paradoxic and Unexpected Response".

But it is not investigated in his (or most) case. So we don't know.

5. Did they consider association between Syncope and Myocardial Bridge? Myocardial bridging: A 'forgotten' cause of acute coronary syndrome. Was he investigated for that?

Yes, we all know stress exacerbate symptoms. But heart just don't stop beating out of the blue when a person is not stressed- playing board games or SITTING in a car and talking..

Lastly, why ALL cardiovascular test are performed when a person is in a supine position? People rarely, if ever, have a syncope or presyncope while being horizontal. To really know what is going on one has to replicate real life conditions, don't you think?

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