Since the lixelle and the connecting tube are pvp free, a possibility of developing pvp allergy can be excluded.Those devices are steam sterilized and a possibility of ethylene oxide (eto) allergy can also be excluded.The incident occurred in the very first treatment with lixelle s-15.According to the treatment parameters provided by the treatment site, the patient was overhydrated by 3.3 kg (6.3%) to the estimated ideal weight (b)(6) before starting the treatment.Due to his overhydrated condition, a relatively higher dehydration rate at 700-1,000 ml/hr compared to that in standard hd procedures (500-700 ml/hr in general), with the blood flow rate of 230 ml/min, was applied.Since the lixelle is used connecting in series to a hemodialyzer, the extracorporeal volume (the blood circulating outside the body) increases by a priming volume of the lixelle s-15 from that of the hd system alone.It might be possible that a higher dehydration rate and the increased extracorporeal volume enhanced a hypovolemic status to cause the severe hypotension resulting in a shock symptom.This report is delayed because it was sent to the emdr test instead of production.
|
The case was a male patient on his 60s of age with chronic hemodialysis (hd) accompanied with dialysis-related amyloidosis (dra).When an on-line hemodiafiltration (hdf) was introduced to the patient in order to improve worsened symptoms of dra, he experienced a significant hypotension at 30 min.After beginning the treatment.The blood test revealed that he was positive in allergy to polyvinylpyrrolidone (pvp).The hdf was switched to a hemodialysis (hd) by using a polysulfone hemodialyzer, aps (asahi kasei medical), but a significant hypotension reoccurred in 12th or 13th hd with the aps, and then, the hemodialyzer was changed to a cellulose triacetate hemodialyzer, fb-190ub (nipro), and the complication had not recurred since then.Since his dra exacerbated again, lixelle s-15, beta2-microglobuline adsorption column, was added on the hd with the fb-190ub.In his first hd with the lixelle, his blood pressure (bp) dropped from 148 mmhg to 72 mmhg at about one hour after starting the treatment and he fell into a state of shock.The treatment was stopped immediately and he recovered with a saline infusion.His bp returned to 130's mmhg at the termination of the treatment.
|