Complications of dialysis
Hypoxemia
This complication generally occurs to patients who adopt Acetate Dialysis.
And the reasons Immunotherapy from acetate metabolism within the body and the
decrease of CO2 and HCO3 content in blood. In addition, the bad biocompatibility
of dialysis membrane will lead to white cells concentration in pulmonary
capillary vessels, which results in hypoxemia. This complication usually has no
obvious clinical symptom and patients with cardiac disease history or the
elderly are more vulnerable to this complication when receiving dialysis.
Hypotension
Hypotension is usually caused by the decline of effective blood volume,
relatively fast filtration speed, pathological changes of automatic nerves, and
decline of vasoconstriction and high level of atrial natriuretic factor. And the
main symptoms include dizziness, choking sensation in chest, perspiration,
amaurosis, nausea and vomiting, muscular spasm or even the loss of
consciousness. Referring to treatments of this complication, immediate
replenishing blood volume together with slowing down blood stream speed or even
suspending dialysis temporally are highly recommended.
Cardiac tamponade
Cardiac tamponade can occur during or after the dialysis. And it is usually
hemorrhagic cardiac tamponade. The causation can be the application of heparin
to patients who have already suffer from pericarditis.
Hemolysis
Hemolysis can be caused by abnormality of dialysate like dialysate low
permeability, high temperature or higher content of nitrate or chloramines.
Symptoms include palpitation, shortness of breath, fantod, and the occurrence of
sharp waist pain or abdomen spasm could be possible. Dialysate low permeability
can also result in water intoxication or cerebral edema. the aggravation of
anemia is the most common result of Hemolysis.
Imbalance syndrome
This complication occurs to patients with high level of blood urea nitrogen
and creatinine. After receiving dialysis, the maldistribution of substances
mainly made up of urea in blood and cerebral tissue, together with the imbalance
of PH levels can easily lead to cerebral anoxia or cerebral edema. And symptoms
include headache after dialysis, fatigue, increase of blood pressure,
sleep-disorder and so on.