Dhar Supriya, Basu Sabita, Chakraborty Subhosmito, Sinha Subir
Department of Transfusion Medicine, Tata Medical Center, Kolkata, West Bengal, India.
Asian J Transfus Sci. 2015 Jul-Dec;9(2):195-8. doi: 10.4103/0973-6247.154254.
Pneumatic tube system (PTS) is commonly used in hospital settings to transport blood samples to diagnostic laboratories. At our blood center, we receive blood requisitions via the PTS, but units are carried to the ward by human courier. Recently we considered using the PTS for transporting blood units. Since, there are reports of hemolysis in blood samples sent through the PTS, we evaluated this system for transporting red cell units.
The aim was to assess the effect of PTS transport on the quality of packed red cell units.
A total of 50 red blood cells units (RBC), (25 non-irradiated and 25 irradiated) were subjected to transportation through the PTS. The control arm in the study was age-matched RBC units not subjected to PTS transport. Each RBC unit was evaluated for hemoglobin (Hb), lactate dehydrogenase, potassium and plasma hemoglobin (Hb). The paired t-test was used to compare these parameters, and the P value was calculated.
The percentage of hemolysis after transportation through PTS was below the recommended guidelines. Delivery of the blood unit to the wrong station, bags lying unattended at the destination were few of the problems that had to be addressed. To conclude, though the PTS is a safe means of transporting blood products with reduction in the turn-around-time, it must be validated before use.
气动管道系统（PTS）常用于医院环境，将血样运输至诊断实验室。在我们的血液中心，我们通过PTS接收血液申请单，但血液单位由人工信使送至病房。最近我们考虑使用PTS运输血液单位。由于有报告称通过PTS发送的血样出现溶血情况，我们评估了该系统用于运输红细胞单位的情况。
目的是评估PTS运输对浓缩红细胞单位质量的影响。
总共50个红细胞单位（RBC）（25个未辐照和25个辐照）通过PTS进行运输。研究中的对照组是未通过PTS运输的年龄匹配的RBC单位。对每个RBC单位进行血红蛋白（Hb）、乳酸脱氢酶、钾和血浆血红蛋白（Hb）评估。使用配对t检验比较这些参数并计算P值。
通过PTS运输后的溶血百分比低于推荐指南。血液单位被送到错误站点、袋子在目的地无人看管是一些必须解决的问题。总之，尽管PTS是一种安全的运输血液制品的方式，可减少周转时间，但在使用前必须进行验证。
