Why can cause hypotension in hemodialysis

Why hemodialysis can cause hypotension ? With some friends after hemodialysis, hypotension phenomenon occurs , many people ask us , said he wanted to know why this is , today we take a look at why would lead to low hemodialysis blood pressure.
Why can cause hypotension in hemodialysis patients on hemodialysis will appear some symptoms of hypotension , after analysis found that : ? Excessive ultrafiltration and dialysate sodium concentration is low mainly due to excessive ultrafiltration , the group had 170 cases of hypotension times , dialysis , blood withdrawn from the blood pump , that is full of dialyzers and blood lines , such as blood pump speed is fast, short blood fast (> 200 ml) into the bypass, the circulating blood volume reduction , caused by decreased blood pressure .
Cause hypotension in hemodialysis Why ? During dialysis , ultrafiltration too fast when the ultrafiltration rate> capillary refill rates lead to lack of effective circulating volume , resulting in hypotension. Generally occurs after dialysis 3 ~ 4 h. As the dialysate sodium concentration lower than the plasma sodium ion concentration , the osmotic pressure of the plasma below the tissue fluid osmolality crystal , therefore , the liquid from the blood into the tissue , blood volume , blood pressure decreased . When eating or dialysis dialysate dialysate temperature when the temperature reaches 37 ~ 38 ℃, can cause blood temperature, so that the patient's skin , muscle , blood vessels dilation reflex , effective circulating blood volume reduction , resulting in reduced blood pressure or patients at eating the gastrointestinal dialysis vasodilation, blood poured into the digestive system, so hypovolemia , hypotension .
Why on hemodialysis can cause low blood pressure you are not already clear it? After all this thing is not a simple dialysis treatment , so patients need to be prepared physically and mentally from a reasonable diet, aggressive treatment , patients believe will be able to win the final victory.