Abstract:
The purpose of this study is to evaluate the efficacy of a multicomponent
collection protocol (LDPRBC) that produces leukodepleted platelets and
leukodepleted red blood cells from a single donation. Twenty three donors underwent
erythrothrombocytapheresis using the Haemonetics MCS+ LN 9000 - 220E blood cell
separator. All blood components were white cells reduced by in-line filtration.
The procedures took in average (mean + SD) 108.26 + 10.19 minutes (range
90-130 min) with a mean blood processed volume of 3,435 + 281.28 ml (range 2,703-
3,922 ml) at flow rate of 74.13 + 11.35 ml/minute (range 60-90 ml/min), resulting in a
platelet content of 4.12 + 0.97 x 10 platelets/unit (95% CI 3.7-4.54 x 10
platelets/unit) with a mean volume of
11 11
298.04 + 26.68 ml/unit (95% CI 286-310
ml/unit). Platelet collection efficiency was 56.43 + 15.07 % (95% CI 50-63%). The
mean hemoglobin from the leukodepleted red blood cells was 50.67 + 2.84 g/unit
(95% CI 49.6-51.75 g/unit) with a mean volume of 285.17 + 7.85 ml/unit (95% CI
282-289 ml/unit). The leukocyte contamination of both platelets and red blood cells
products was in the mean of 0.034 + 0.012 x 106 and 0.035 + 0.012 x 10 ,
respectively. The log depletion of white blood cell filtration in red blood cell units was
4.6
6
+ 0.2. The Hematocrit, Hemoglobin, red blood cell and platelet count of
preapheresis and postapheresis were significantly decreased.
In conclusion, the leukodepleted platelet and red blood cell collection with the
MCS+ blood cell separator met the AABB criteria of leukodepleted blood products.
Only donor reaction was paresthesia.