3 research outputs found
Adding to platelet safety and life: Platelet additive solutions
Background: Platelet additive solutions (PAS) are crystalloid nutrient media used in place of plasma for platelet storage. They replace 60%–70% of plasma in platelet components, so the amount of storage plasma can be decreased. Platelets in PAS have lower risk for allergic transfusion reactions with equivalent clinical efficacy for controlling bleeding.
Aim: The aim of this study is to evaluate the clinical and laboratory efficacy of PAS-platelets.
Materials and Methods: A total of 1674 single donor platelet (SDP) were collected in PAS in the month of June to September 2016 by different apheresis systems. The quality control tests were done on 356 units in 4 months. Total number of SDP were processed with Amicus device (n = 232), Trima Accel (n = 84), and MCS+ (n = 40). The parameters analyzed were antibody titer of anti-A and anti-B, volume, platelet count, pH, bacterial contamination, and reporting of adverse transfusion reaction. Antibody titers were checked by tube technique, and platelet counts were checked by hematology analyzer Sysmex poch 100i. The swirling was checked manually, and pH was checked with pH strips.
Results: Out of 356, 164 units were O group, 113 units were B group, 68 units were of A group, and the remaining 11 units were of AB Group. Anti-A and anti-B titer was significantly reduced in PAS-SDP and found 1:32 or less for all the units. All the units found negative for bacterial contamination. No transfusion reaction was reported of the units transfused. All other quality parameters for platelets also found satisfactory after implementing the additive solution.
Conclusion: The ABO antibody titers were significantly reduced after addition of PAS. This facilitates the ABO incompatible SDP transfusion and helps in inventory management. The risk of allergic transfusion reaction decreases after reducing the amount of plasma from SDP units. Using PAS-SDP certainly improve the inventory management for platelets with no compromise on clinical and laboratory efficacy
Buckling Analysis of Roll Cage Using Finite Element Analysis
Abstract — The present paper is based on frame buckling analysis of ATV roll cage through finite element procedures.This analysis was performed using CATIA software. The detailed three dimensional model geometry of roll cage is worked out. The meshing of the part blower is done and the details of the finite element mesh are calculated. The roll cage is subjected to the load environment. The actual load conditions are worked out and the boundary conditions are given.This analysis comprises of material selection, structure computation, restraint computation, load computation, stiffness computation, singularity computation, constraint computation, factorized computation, direct method computation, geometric stiffness computation and buckling computation and at last global sensors