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Benefits of the use of blood conservation in scoliosis surgery

World Journal of Orthopedics 2016年第12期7卷 808-813页

作者： peter R Loughenbury Lyeanda Berry Ben T Brooke Abhay S Rao Robert A Dunsmuir peter a millner Department of Neurosciences Leeds General Infirmary

AIM To investigate whether autologous blood transfusion(ABT) drains and intra-operative cell salvage reduced donor blood transfusion requirements during scoliosis *** Retrospective data collection on transfusion requirements of patients undergoing scoliosis surgery is between January 2006 and March 2010. There were three distinct phases of transfusion practice over this time: Group A received "traditional treatment" with allogeneic red cell transfusion(ARCT) in response to an intra- or postoperative anaemia(Hb < 8 g/d L or a symptomatic anaemia); Group B received intra-operative cell salvage in addition to "traditional treatment". In group C,ABT wound drains were used together with both intra-operative cell salvage and "traditional treatment".RESULTS Data from 97 procedures on 77 patients,there was no difference in mean preoperative haemoglobin levels between the groups(A: 13.1 g/d L; B: 13.49 g/d L; C: 13.66 g/d L). Allogeneic red cell transfusion was required for 22 of the 37 procedures(59%) in group A,17 of 30(57%) in group B and 16 of 30(53%) in group C. There was an overall 6% reduction in the proportion of patients requiring an ARCT between groups A and C but this was not statistically significant(χ2 = 0.398). Patientsin group C received fewer units(mean 2.19) than group B(mean 2.94)(P = 0.984) and significantly fewer than those in group A(mean 3.82)(P = 0.0322). Mean length of inpatient stay was lower in group C(8.65 d) than in groups B(12.83) or A(12.62).CONCLUSION When used alongside measures to minimise blood loss during surgery,ABT drains and intra-operative cell salvage leads to a reduced need for donor blood transfusion in patients undergoing scoliosis surgery.

关键词： Blood conservation Scoliosis Autologous blood Cell salvage Transfusion

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Photosynthetic Water Use Efficiency of Heritage and Modern Potatoes under Limited and Unlimited Water Environments

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Agricultural Sciences 2014年第14期5卷 1501-1512页

作者： Isaac R. Fandika peter D. Kemp James P. millner Dave Horne Institute of Natural Resources Massey University Palmerston North New Zealand Department of Agricultural Research Services Kasinthula Agricultural Research Station Chikwawa Malawi

Photosynthetic capacity for heritage (Taewa) and modern potato cultivars were compared at different water and nitrogenregimes in the glasshouse and field. The glasshouse was 2*2*4 factorial design with two irrigation: 100% ET and 60% ET;two applied N: 50 kg N ha-1 and 200 kg N ha-1, two Taewa (Moe Moe, Tutaekuri) and two modern potatoes (Moonlight, Agria). The 2009/2010 field experiment was a split-plot, with irrigation and rain-fed regimes as the main treatments: four potatoes above were sub-treatments. The 2010/2011 field experiment was a split-split-plot, with three water regimes as the main treatments: three cultivars (Moe Moe, Tutaekuri, and Agria) were subplots;two N rates were sub-sub-treatments. Gaseous exchange was measured by CIRAS-2 at different days from emergence. Leaf water potential was measured using pressure chamber method. Taewa achieved high photosynthetic WUE in glasshouse and 2010/2011 experiment by maintaining high An, low gs and low Ci compared to modern cultivars (p The An, gs and T increased with irrigation and N increase while decreasing Ci (p < 0.01). Water stress significantly increased VPD resulting in low An and photosynthetic WUE in Moonlight in the glasshouse. The leaf water potential for Taewa was very tolerant while modern potatoes were weakened by water stress. The study indicated that Taewa can be scheduled at partial irrigation without more detrimental effects on photosynthetic capacity while modern potatoes need full irrigation to avoid detrimental effects on photosynthetic capacity.

关键词： Taewa Photosynthesis Stomatal Conductance (gs) Transpiration (T) Irrigation Internal Carbon concentration (Ci) Vapour Pressure Deficit (VPD) Leaf Water Potential and Photosynthetic Water Use Efficiency (Photosynthetic WUE) Solanum tuberosum Solanum andigena

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