Safety and effectiveness of Perioperative Transfusion Trigger Score on perioperative allogeneic RBC transfusions in surgical patients / 中国输血杂志

【Objective】 To evaluate the safety and effectiveness of Perioperative Transfusion Trigger Score (POTTS) in guiding surgical patients blood transfusion intraoperatively and postoperatively. 【Methods】 A total of 900 patients(perioperative Hb 60~100 g/L) from December 2017 to March 2021 were collected, including 251 males and 649 females, with ASA grading Ⅰ~Ⅳ, and randomly divided into experimental group and controls. In the experimental group, the allogeneic RBC transfusion trigger(Hb threshold) and transfusion units in anemia patients was determined by POTTS. While those in the controls were decided by physicians according to current guidelines concerning transfusion. The proportion and units of allogeneic RBC transfusion, the incidence of postoperative complications, the mortality of hospitalization and discharge for 4 weeks, Hb value, healing of surgical incision, ICU admission rate and ICU length of stay, length of hospitalization, etc were recorded. 【Results】 The proportion of allogeneic RBC transfusion in the experimental group(35.3%)were less than the controls(42.2%)(P<0.05). The units of allogeneic RBC transfused, incidence of postoperative complications and mortality in hospital and 4 weeks after surgery, healing of surgical incision (grade A/ grade B/ grade C), the Hb level 24 h after surgery and at discharge, the ICU admission rate and ICU length of stay, length of hospitalization were not significantly different between the groups. 【Conclusion】 The peri-operative allogeneic red blood cells transfusion guided by POTTS can reduce the proportion of allogeneic RBC transfusion, and is safe and effective.

Criterios actuales en la medicina transfusional perioperatoria / Current opinions in perioperative transfusion medicine

Blood transfusion as well as blood conservation strategies are the basis of so-called transfusion medicine, which is founded on the multidisciplinary work of anaesthesiologists, surgeons, haematologists, internists, etc. Its main objective is to avoid unnecessary transfusions. It is out of the question that a knowledge of transfusion indications, with the application of physiological triggers for red blood cells and the use of viscoelastic test-based guidelines for plasma and platelets, forces us to stay constantly abreast of the latest guidelines in this field. It is true that the blood products transfused today are the safest ever, although a zero-risk situation is impossible to reach. So, it is always important to keep in mind, as an essential part of transfusion medicine, a balance between risk and benefits in the indication of every single hemoderivate we prescribe. Taking into account the need for better criteria in the final transfusion decision, trying to use every resource available to minimise allogenic blood administration (also avoiding infra-transfusion), the concept of "patient blood management" has been developed. Its main objective for the surgical patient is to optimise preparation in the preoperative period, to minimise blood loss and bleeding during surgery, as well as to optimise the physiological tolerance of anaemia in the postoperative period

La transfusión de hemoderivados y sus técnicas de ahorro son la base de la medicina transfusional, que se fundamenta en el trabajo multidisciplinario de anestesiólogos, cirujanos, hematólogos, internistas, entre otros. Su objetivo esencial es disminuir o evitar las denominadas transfusiones innecesarias. No cabe duda de que el conocimiento de las indicaciones de administración de cada uno de los hemoderivados, con la aplicación de los triggers fisiológicos cuando se hace referencia a los concentrados de hematíes, o de la monitorización con pruebas de viscoelasticidad cuando se habla de la transfusión de hemostáticos, hacen que debamos ser conocedores de las nuevas tendencias decisionales en este campo. La sangre que se transfunde en el momento actual es la más segura que hemos tenido nunca, pero es imposible llegar al "riesgo cero", por lo que siempre es necesario tener en cuenta, como parte de la medicina transfusional, el equilibrio entre riesgo y beneficio en la indicación de cada uno de los hemoderivados que administramos. A partir de la premisa de transfundir con mejor criterio, tratando de emplear todos los recursos para minimizar la transfusión de sangre alogénica sin entrar en la infratransfusión, se desarrolla el concepto de "patient blood management", cuya esencia es la óptima preparación del paciente, la minimización del sangrado y las pérdidas hemáticas durante la cirugía y el aprovechamiento y la optimización de la reserva fisiológica de cada paciente en el posoperatorio

Study of central venous oxygen saturation used in transfusion of hemorrhagic shock rabbits / 中国医师杂志

ObjectiveTo study central venous oxygen saturation (ScyO2) in controlled hemorrhagic shock rabbits resuscitation process as a transfusion trigger and traditional transfusion trigger of comparison.MethodsSelection New Zealand pure line of rabbit 32 only,simple randonly divided into 4 groups,groups A and B for the observation group,groups C and D as control group,groups of eight only.A,B,C,D four groups respectively by ScvO2 ≤70％,ScvO2 ≤75％,hemoglobin (Hb)≥8g/dl,blood loss for the whole blood volume≥30％ as transfusion trigger.From right femoral artery bloodletting 10 minute inside,made the MAP to about (40 ± 5 )mmHg,and maintained the blood pressure 60 minutes,established controlled hemorrhagic shock rabbits of animal model.And then started to resuscitate,with colloid and crystalloid infusion according to the proportion 1∶2,infusion rate of about 10 ～ 15ml/( kg · h),according to the blood pressure and heart rate,and proper adjustment according to the different requirements of each group conducted a blood transfusion.Monitoring based value,shock,shock treatment 30 minutes,60 minutes,120 minutes,180 minutes all time points,and various indexes of blood loss,blood transfusions,crystalloid and colloid fluid volume and so on.ResultsIn shock treatment observation group A late blood pressure,pH,BE,HCO3-,O2ER etc compared with the other three groups had obvious statistical differences ( P ＜ 0.05 ),group B with C and D two groups at the same time points each monitoring were no significant differences ( P ＞0.05 ).The volume of transfusion group C was most,compared with the other three groups were significant difference ( P ＜ 0.05 ),group D of blood transfusions than A,B two groups (P ＜ 0.05 ),groups A and B infused colloid fluid,crystal fluid volume than groups C and D ( P ＜ 0.05 ),each group blood lossed without significant difference.ConclusionScvO2 for controlled hemorrhagic shock rabbit resuscitation monitoring can guide controlled hemorrhagic shock rabbit of blood transfusions,according to ScvO2 ≤75％ transfusion with traditional according to Hb or blood loss transfusion trigger comparison,can achieve the same resuscitation effect,and can more accurately and individualized guide transfusion,reduce unnecessary blood transfusions,save resources.

The influence of two transfusion triggers on middle-and old-aged patients during tumorectomy / 中国输血杂志

0.05].Conclusion To the middle-and old-aged GI cancer patients without organ dysfunction,lowering blood transfusion trigger from Hb 100 g/L to Hb 80 g/L during operation can meet the requirement of oxygen,reduce blood transfusion,and do not increase the rates of wound infection or delay wound healing.