Nocturnal hypertension : Something Important is being cooked in the hypertensive world !

Some physics: Why is blood under pressure?  In perfect vascular climatic conditions, the human circulatory system is comparable to a smooth flowing river irrigating 100 trillion cells, traversing many kilometers of the capillary network, to the far away tissue bed. One major difference in the river analogy is, that in human biology, the entire blood has to return back to the heart in about 30 seconds. (The fact that the venous system does this in style with near-zero pressure head is the greatest wonder in circulatory physiology) The force per unit area, that drives the blood is the blood pressure. It is expressed in kilo pascals. (16/10 Kpa one Kpa is 7.5 mmHg. It has two components streaming pressure as well the lateral pressure. What we measure by conventional BP apparatus is the lateral pressure on the vessel, which is what we are worried about most times. But, the forward driving head is equally important because the branch points bear the brunt of this pressure head. Sudden surges and spikes attack the grade separators more. This is one of the reasons, the arterial branch points are more prone to atherosclerosis. While we believe onward pressure head does all the damage, it is also worth knowing the velocity of blood flow can also be defining factor in vascular Injury. The flow velocity is surprisingly low in physiological conditions, about 4-6km/h something similar to our walking speed.  What is normal blood pressure? We don’t ...
Source: Dr.S.Venkatesan MD - Category: Cardiology Authors: Tags: Hypertension systemic hypertension acc aha esc hypertension guidelines dippers non dippers melatonin for nocturnal hypertension night time bp reverse dipper Source Type: blogs