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BACKGROUND: Reported incidence of blood transfusion reactions (TR) varies greatly. OBJECTIVE: To prospectively evaluate the incidence of acute TRs in dogs receiving allogenic blood products, using consensus definitions, and to assess factors associated with TRs. ANIMALS: Dogs (n = 858) administered allogenic blood products (n = 1542) between March and November 2022. METHODS: Prospective, multicenter surveillance study occurring in referral hospitals in the United States, United Kingdom, and Australia recording TRs in dogs administered blood products as defined by the consensus guidelines published by The Association of Veterinary Hematology and Transfusion Medicine in 2021. RESULTS: The incidence of acute TR was 8.9% (95% CI 7.0-11.1) for packed red blood cells (pRBCs) and 4.5% (95% CI 2.9-6.6) for plasma products. The most frequently reported TRs were febrile nonhemolytic TRs (FNHTR; 4%, 95% CI 2.8-5.5) when administering pRBCs and allergic TRs (3.2%, 95% CI 1.80-5.10) when administering plasma products. A higher dose of pRBC (adjusted odds ratio [aOR] 1.04 [95% CI 1.00-1.08]) was associated with a higher odds of TR. Administration of pRBCs stored for longer than 28 days was associated with higher odds of FNHTR (aOR 4.10 [95% CI 1.58-10.65]) and acute hemolytic TR (AHTR; OR 15.2 [95% CI 3.35-68.70]) when compared with pRBCs stored for 14 days or fewer. Leukoreduction of pRBC was not associated with lower odds of developing a TR (OR 1.47 [95% CI 0.89-2.42]). CONCLUSIONS AND CLINICAL IMPORTANCE: Clinicians should be mindful of the age and dose of pRBC prescribed to dogs.

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Although significant efforts have been made to enhance trauma care, the mortality rate for traumatic cardiac arrest (TCA) remains exceedingly high. Therefore, our institution has implemented special measures to optimize the treatment of major trauma patients. These measures include a prehospital Medical Intervention Car (MIC) and a 'code red' protocol in the trauma resuscitation room for patients with TCA or shock. These measures enable the early treatment of reversible causes of TCA and have resulted in a significant number of patients achieving adequate ROSC. However, a significant proportion of these patients still die due to circulatory failure shortly after. Our observations from patients who underwent clamshell thoracotomy or received echocardiographic evaluation in conjunction with current scientific findings led us to conclude that dysfunction of the heart itself may be the cause. Therefore, we propose discussing severe trauma-associated cardiac failure (STAC) as a new entity to facilitate scientific research and the development of specific treatment strategies, with the aim of improving the outcome of severe trauma.

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An 18-year-old male with T4-L3 adult idiopathic scoliosis was treated with posterior spinal fusion followed by the application of a combined incisional negative pressure wound therapy (NPWT) and subfascial suction drainage system. In this report, we describe a novel technique that incorporates subfascial drains into an NPWT incisional vacuum system leading to a single exiting suction line. This effectively mitigates drain burden, maintains a sterile environment during the in-hospital postoperative period, provides NPWT to the drain exiting and incisional sites, and provides negative pressure-assisted deep space closure.

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Cytochrome c oxidase, also known as complex IV, facilitates the transfer of electrons from cytochrome c to molecular oxygen, resulting in the production of ATP. The assembly of complex IV is a tightly regulated and intricate process that entails the coordinated synthesis and integration of subunits encoded by the mitochondria and nucleus into a functional complex. Accurate regulation of translation is crucial for maintaining proper mitochondrial function, and defects in this process can lead to a wide range of mitochondrial disorders and diseases. However, the mechanisms governing mRNA translation by mitoribosomes in mammals remain largely unknown. In this study, we elucidate the critical role of PET117, a chaperone protein involved in complex IV assembly, in the regulation of mitochondria-encoded cytochrome c oxidase 1 (COX1) protein synthesis in human cells. Depletion of PET117 reduced mitochondrial oxygen consumption rate and impaired mitochondrial function. PET117 was found to interact with and stabilize translational activator of COX1 (TACO1) and prevent its ubiquitination. TACO1 overexpression rescued the inhibitory effects on mitochondria caused by PET117 deficiency. These findings provide evidence for a novel PET117-TACO1 axis in the regulation of mitochondrial protein expression, and revealed a previously unknown role of PET117 in human cells.

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BACKGROUND AND OBJECTIVES: Transfusion-associated circulatory overload (TACO) and transfusion-related acute lung injury (TRALI) are serious adverse transfusion reactions. Standardized surveillance definitions are important to ensure consistent reporting of cases. Recently, revised definitions have been developed for TACO and TRALI, the latter of which has not yet been widely implemented. This study aimed to assess the impact of the new TACO and TRALI definitions on haemovigilance reporting. MATERIALS AND METHODS: The Australian Red Cross Lifeblood Adverse Transfusion Reaction database was accessed to identify all cases of suspected or confirmed TACO and TRALI referred from 1 July 2015 to 30 June 2019. Cases were assessed against both the former and new definitions and the results were compared. RESULTS: A total of 73 cases were assessed. There were 48 TACO cases identified. Only 26 of 48 cases strictly met the former 2011 International Society of Blood Transfusion (ISBT) definition of TACO; 6 cases did not meet the definition and 16 cases lacked sufficient clinical details. In comparison, 46 cases met the revised 2018 ISBT definition, with only 2 cases having insufficient details. There were 24 cases of TRALI according to the existing 2004 Canadian Consensus Conference (CCC) definition compared with 25 cases according to the proposed 2019 revised definition. CONCLUSION: The revised TACO definition captured more cases than the former definition. No significant differences were observed in the number of TRALI cases under the proposed new definition. This is the first study to provide validation data for the revised TRALI definition.

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The preeminent causes of blood transfusion-related morbidity and mortality are transfusion-associated circulatory overload (TACO) and transfusion-related acute lung injury (TRALI). These occur within hours of blood transfusion and lead to acute respiratory distress. The differentiation between TACO and TRALI has always been a great challenge in the context of underlying etiology, whether it is volume overload or lung injury, or both. This is a case report of a 64-year-old female with multiple comorbidities, who was brought to the emergency department with generalized weakness. She was hemodynamically unstable and encephalopathic. Her hemoglobin was 6.5 gm/dl with no active evidence of bleeding. She was started on a norepinephrine drip and one unit of packed red blood cells was transfused. A few hours post-transfusion, she became extremely tachypneic and hypoxic. A chest x-ray post-transfusion showed diffuse bilateral fluffy alveolar infiltrates and the N-terminal (NT)-pro hormone Brain Natriuretic Peptide (NT-proBNP) was significantly elevated. The transfusion reaction workup was negative. Due to worsening hypoxia, she required a rapid transition from non-invasive to invasive mechanical ventilation. The chronology of this case report depicts a unique presentation of acute respiratory distress and the course of hypoxemia.

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BACKGROUND AND OBJECTIVES: Transfusion-associated circulatory overload (TACO) is the primary cause of transfusion-related mortality. Speed and volume of transfusion are major risk factors. The aim of this study was to investigate the interaction of red blood cell (RBC) transfusion speed and volume on the development of TACO. MATERIALS AND METHODS: A validated model for TACO in anaemic Lewis rats with an acute myocardial infarction was used. The effect on pulmonary hydrostatic pressure of one, two or four units of packed RBCs transfused in either 30 or 60 min was evaluated (3.3-26.6 ml·kg-1 ·hr-1 ). Pulmonary capillary pressure was measured as left ventricular end-diastolic pressure (LVEDP). Cardiac stress biomarkers atrial natriuretic-peptide (ANP) and N-terminal pro-brain natriuretic peptide (NT-proBNP) were measured 1-h post-transfusion. RESULTS: Thirty animals were included (n = 5 per group). Transfusion of RBCs increased LVEDP in a volume-dependent manner (ΔLVEDP [mmHg]: -0.95, +0.50, +6.26, p < 0.001). Fast transfusion increased overall ΔLVEDP by +3.5 mmHg and up to +11.8 mmHg in the four units' group (p = 0.016). Doubling transfusion speed increased ΔLVEDP more than doubling volume in the larger volume groups. No difference in ANP or NT-proBNP were seen in high transfusion volume or groups. CONCLUSION: Transfusion volume dose-dependently increased LVEDP, with speed of transfusion rapidly elevating LVEDP at higher transfusion volumes. ANP and NT-proBNP were not impacted by transfusion volume or speed in this model. TACO is seen as purely volume overload, however, this study emphasizes that limiting transfusion speed, as a modifiable risk factor, might aid in preventing TACO.

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PURPOSE: To assess the long-term outcome of graft insertion by taco technique through a 2.8-mm clear corneal incision in patients undergoing Descemet's stripping automated endothelial keratoplasty (DSAEK). METHODS: This is a retrospective interventional case series of 77 eyes of 75 patients who underwent DSAEK in a tertiary eye hospital. The DSAEK donor grafts were folded to an uneven 70/30 taco and held at a single point using Utrata forceps. All insertions were through a 2.8-mm clear corneal incision except the two aphakic patients requiring combined SFIOL implantation. All patients underwent a comprehensive eye examination preoperatively and were followed up to 6 years postoperatively. Visual outcomes, graft clarity, and complications of all and endothelial cell loss in 22 patients with available postop specular microscopy were analyzed. RESULTS: Overall, 59 (76.6%) had clear grafts until the final follow-up. Visual acuity improved in 48 (62.3%) from an average of 1.3 to 0.8 logMAR (P = 0.0001). Vision was maintained in seven and worsened in four eyes. Grafts failed in 18 (23.3%) eyes: seven (9%) were primary failures, two post rejection, four done for failed PK did not clear, four due to worsening of preexisting glaucoma, and one noncompliant failed eventually. Average endothelial cell density reduction was 26.3% (mean preop donor 2419 to postop 1779 cells/mm2; P = 0.000). CONCLUSION: Our study shows good long-term clinical outcome of DSAEK using Taco technique through a 2.8-mm clear corneal incision in a tertiary hospital.

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OBJECTIVES: To review the new current diagnostic criteria of transfusion-associated circulatory overload (TACO) and transfusion-related acute lung injury (TRALI) from the literature while highlighting distinguishing features. We provide comprehensive understanding of the importance of hemovigilance and its role in appropriately identifying and reporting these potentially fatal transfusion reactions. METHODS: A review of the English language literature was performed to analyze TACO and TRALI while providing further understanding of the rationale behind the historical underrecognition and underreporting. RESULTS: Our review demonstrates the new 2018 and 2019 case definitions for TACO and TRALI, respectively. With more comprehensive diagnostic strategies, adverse transfusion events can be better recognized from mimicking events and underlying disease. In addition, there are mitigation strategies in place to help prevent complications of blood product transfusion, with emphasis on the prevention of TACO and TRALI. CONCLUSIONS: TACO and TRALI are potentially fatal adverse complications of blood transfusion. Both have been historically underrecognized and underreported due to poor defining criteria and overlapping symptomatology. Developing a thorough clinical understanding between these two entities can improve hemovigilance reporting and can contribute to risk factor identification and preventative measures.

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BACKGROUND: Transfusion-associated circulatory overload (TACO) is an adverse reaction associated with a high risk of mortality. The actual incidence of TACO and hypertension associated with transfusion in Japan is unknown. METHODS: A multicentre retrospective observational study was conducted across 23 institutions during the 1-year period of 2016. Patients were included if they developed TACO or their blood pressure (either systolic or diastolic) increased by at least 30 mmHg during the transfusion. TACO was confirmed by the primary physicians and transfusion medicine teams and recorded in the data on passive surveillance, and additional data were extracted from electronic medical records. RESULTS: In our patient cohort of 31 384 patients who underwent transfusion, the incidence of TACO and hypertension was 0·03% and 0·2%, respectively. However, 43% of the participating institutions didn't report any cases. When comparing risk factors between the TACO and hypertension groups, there were significant differences in comorbidities, such as abnormal findings on chest x-ray. Significant differences between the two groups were observed post-transfusion pulse rate, body temperature and oxygen saturation (P < 0·01). In the group of patients with hypertension, the level of BNP increased significantly after transfusion in 45% (5/11) of the patients. We identified 4 patients in the hypertension group who met the new ISBT's TACO criteria. CONCLUSION: Our study suggests that more attention should be given to TACO in Japan, particularly in terms of improving surveillance systems. For the early diagnosis of TACO, it is crucial to carefully monitor vital signs including blood pressure.

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Resumen La introducción de las nuevas tecnologías en el béisbol ha optimizado los sistemas para el registro y análisis de información, tanto en el entrenamiento como en el juego, contribuyendo a un control más exacto del rendimiento de un jugador. En el presente trabajo, se aplica el sensor Blast Motion Baseball cuyo objetivo es identificar las variables significativamente influyentes en el rendimiento de los bateadores en el béisbol cubano. Se eligieron bateadores (N=24) pertenecientes a la Serie Nacional de béisbol LIX debido a que constituye el evento nacional de mayor nivel del béisbol cubano. La información fue registrada en prácticas de bateo, mientras el bateador ejecutaba la tarea de conectar bolas lanzadas por el entrenador de frente (front toss), por encima del brazo a una distancia de 30 pies y a una velocidad inferior a las 50 mph. Posteriormente, se compararon los resultados del Blast Motion Baseball con las estadísticas oficiales de la Serie Nacional de Béisbol LIX. Se demostró que los bateadores con mayor velocidad del bate, mayor velocidad máxima de las manos y mayor potencia lograron un mayor rendimiento ofensivo. Por tanto, conocer en tiempo real estas características del swing contribuyen a perfeccionar el proceso de entrenamiento y predecir el rendimiento deportivo de un bateador.

Resumo A introdução de novas tecnologias no basebol otimizou os sistemas de gravação e análise de informação, tanto no treino como no jogo, contribuindo para um controlo mais preciso do desempenho de um jogador. No presente trabalho, é aplicado o Sensor de basebol Blast Motion. O seu objetivo é identificar as variáveis que influenciam significativamente o desempenho dos batedores no basebol cubano. Os batedores (N=24) pertencentes à Série Nacional de basebol LIX foram escolhidos porque constitui o evento nacional de mais alto nível do basebol cubano. A informação foi registada durante o treino de batedores, enquanto o batedor executava a tarefa de ligar bolas lançadas pelo treinador a partir do lançamento frontal, sobre o braço a uma distância de 30 pés e a uma velocidade inferior a 50 mph. Os resultados do Blast Motion Baseball foram então comparados com as estatísticas oficiais da Série Nacional de Basebol LIX. Foi demonstrado que batedores com maiores velocidades de taco, maiores velocidades de mão superior, e mais potência alcançaram um maior desempenho ofensivo. Portanto, conhecer estas características do balanço em tempo real ajuda a refinar o processo de treino e a prever o desempenho atlético de um batedor.

Abstract The introduction of new technologies in baseball has optimized the systems for recording and analyzing information, both in training and in the game, contributing to a more accurate control of a player's performance. In this work, it is applied the Blast Motion Baseball sensor which objective is to identify the variables significantly influencing the performance of batters in Cuban baseball. There were chosen batters (N=24) belonging to the National Baseball Series LIX because it constitutes the national event of higher level in Cuban baseball. The information was recorded during batting practice, while the batter was performing the task of connecting balls thrown by the coach from the front toss, over the arm at a distance of 30 feet and at a speed of less than 50 mph. The results of Blast Motion Baseball were then compared with the official statistics of the LIX National Baseball Series. It was shown that batters with higher bat speed, higher top hand speed and more power achieved greater offensive performance. Therefore, knowing these characteristics of the swing in real time helps to perfect the training process and predict the sports performance of a batter.

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ABSTRACT Background: Blood transfusion is a life-saving procedure, but may cause adverse transfusion reactions (TRs). The reporting of TRs is often missed due to various reasons. The aim of this study was to determine the incidence of unreported acute TRs through active surveillance and to compare it with the incidence of passively reported TRs. Methods: This prospective observational study was done over a period of four months at a tertiary care hospital. A total of 500 consecutive transfusion episodes (TEs) in patients who had received blood component transfusions in the intensive care units were included in the study. Comprehensive data were collected from the blood bank records, patient records and through interviews with the attending clinical staff. The TEs were defined as all blood components issued to a single patient in 24 h. Results: The overall incidence of TRs was 1.8 % (9 cases), with 0.4 % (2 cases) being reported passively, while 1.4 % (7 cases) were identified during active surveillance. The transfusion-associated cardiac overload (TACO) had the highest incidence of 1.2 % (6 cases) in active surveillance. A single case of acute hemolytic transfusion reaction was also observed during active surveillance. The passively reported TRs were one allergic reaction and one febrile non-hemolytic transfusion reaction. Conclusion: Active surveillance of TRs provided an insight into the true incidence of TRs, which is higher when compared with the passively reported TRs. The TACO was found to have the highest incidence and not a single case was reported. There is a need to improve awareness regarding TR reporting.

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The pulmonary complications of transfusion (TACO, TRALI and TAD) are the leading cause of transfusion-related mortality and major morbidity. Advance in this area is essential in improving transfusion safety. This review describes the drivers for change in haemovigilance practice, the influence of recent key publications and future directions.

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BACKGROUND: Blood transfusion is a life-saving procedure, but may cause adverse transfusion reactions (TRs). The reporting of TRs is often missed due to various reasons. The aim of this study was to determine the incidence of unreported acute TRs through active surveillance and to compare it with the incidence of passively reported TRs. METHODS: This prospective observational study was done over a period of four months at a tertiary care hospital. A total of 500 consecutive transfusion episodes (TEs) in patients who had received blood component transfusions in the intensive care units were included in the study. Comprehensive data were collected from the blood bank records, patient records and through interviews with the attending clinical staff. The TEs were defined as all blood components issued to a single patient in 24h. RESULTS: The overall incidence of TRs was 1.8 % (9 cases), with 0.4 % (2 cases) being reported passively, while 1.4 % (7 cases) were identified during active surveillance. The transfusion-associated cardiac overload (TACO) had the highest incidence of 1.2 % (6 cases) in active surveillance. A single case of acute hemolytic transfusion reaction was also observed during active surveillance. The passively reported TRs were one allergic reaction and one febrile non-hemolytic transfusion reaction. CONCLUSION: Active surveillance of TRs provided an insight into the true incidence of TRs, which is higher when compared with the passively reported TRs. The TACO was found to have the highest incidence and not a single case was reported. There is a need to improve awareness regarding TR reporting.

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Perioperative allogeneic blood product transfusion is common in lung transplantation and has various implications on the short- and long-term outcomes of lung recipients. This review summarizes the effect of transfusion on outcomes including primary graft dysfunction, chronic lung allograft dysfunction, and all-cause mortality. We outline known risk factors for increased transfusion requirement in lung transplantation and present current evidence regarding the effect of hemostatic agents including antifibrinolytics, recombinant factor VII, and prothrombin complex concentrates. Finally, we highlight the roles of point-of-care coagulation testing and goal-directed transfusion strategies in reducing transfusion requirements in lung transplantation.

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A Mexican staple food prepared with corn "tortilla" (Zea mays L.) and common beans (Phaseolus vulgaris L.) is named as "taco". It was fermented in an in vitro colonic Simulator of Human Microbial Ecosystem (SHIME®) to evaluate the effect in short chain fatty acids (SCFA), ammonia production, and the growth of total presumptive counts for anaerobic bacteria, Lactobacillus spp., Bifidobacterium spp., Clostridium spp., and total coliforms in the three simulated reactors of the human colon. After two weeks of stabilization, the simulator was fed during 9 days with the mixture of 50 g of beans and 50 g of tortilla mixed with 100 mL of carbohydrate based medium. Every third day, samples were collected from the three simulated colon vessels for the corresponding analysis. The production of the SCFA was higher during the treatment period than the basal period in the three colon sections. The acetate was produced in higher concentration (191.9 mmol/L) than propionate and butyrate (29.1 and 55.0 mmol). During the treatment period, the higher molar ratio (%) for acetate, propionate, and butyrate were 84: 14: 24, respectively. The ammonia ions as well as the growth of presumptive coliforms were reduced (p < 0.05) in the three simulated colon vessels during the treatment. Finally, in vitro fermentation of Mexican "taco" showed a possible potential functional profile of an ancestral staple food due to the production of SCFA that may exert beneficial effects.

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BACKGROUND AND OBJECTIVES: Transfusion-associated circulatory overload is a leading cause of transfusion-related adverse events. The frequency and risks for transfusion-associated circulatory overload in ambulatory haematology patients are not known. MATERIALS AND METHODS: A retrospective cohort analysis of ambulatory patients transfused in a tertiary haematology centre, using medical records and an electronic transfusion database, was undertaken between January and December 2014. Variables studied included age, gender, diagnosis, heart failure, kidney disease and details of transfusions. Transfusion-associated circulatory overload was defined according to proposed International Society of Blood Transfusion criteria. Patients with clinical evidence of hypervolaemia, not meeting the TACO definition and/or who were prescribed otherwise unscheduled diuretic agent, were collectively deemed to be at 'risk of clinically significant hypervolaemia' (ROCSH). RESULTS: In the study period, 93 ambulatory patients (male = 49, female = 44, mean age = 75·89 ± 11·37 years) attended 715 transfusion encounters, totalling 1536 packed red cell units. No cases of TACO occurred whilst 'ROCSH' events occurred in 57/715 (8%) of transfusion encounters. In a univariate model, age was significantly associated with 'ROCSH', odds ratio = 1·05 (P = 0·017 95%, CI 1·01-1·09) and no factors were significant on multivariate analysis. CONCLUSIONS: Transfusion-associated circulatory overload occurs infrequently haematology patients receiving ambulatory blood transfusions. To our knowledge, this is the first study to report on occurrence and risk factors for circulatory overload in ambulatory transfusions. This study provides vital baseline data for future prospective studies on this important aspect of haemovigilance.

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OBJECTIVES: Transfusion-related adverse events (TRAE) can contribute to patient morbidity and mortality. In this brief narrative review, the strategies that clinicians can apply at the bedside to avoid TRAE are discussed. METHODS: Strategies to avoid the following five types of TRAE were reviewed: transfusion-associated circulatory overload (TACO), transfusion-related acute lung injury (TRALI), transfusion-associated hypothermia (TAH), transfusion-related allergic reactions (TRAR) and acute haemolytic transfusion reactions (AHTR). RESULTS: Minimizing exposure to blood components is fundamental to TRAE avoidance. Pre-transfusion assessment can identify patients at risk of TACO, TRAR and TAH, and avoidance steps implemented. Preventive strategies for TACO include lower transfusion rate, 'one unit at a time' transfusion policy and possibly diuretic medication. Patients with past history of TRAR should preferably be given plasma-free blood components; anti-histamine medication prior to transfusion could be considered. TAH is common in the massive transfusion setting, particularly trauma patients. Warming of patients are key strategies to avoid TAH. Identification of patients at risk of TRALI is more opaque; however, any measures that limit pulmonary inflammation prior to transfusion may decrease the risk of TRALI. Causes of AHTR are commonly due to human error and failure to apply rigorous cross-checks of patient and issued RBC component blood groups. CONCLUSIONS: Beneficial strategies to avoid TRAE include judicious use of blood components, identification of high-risk patients, adherence to recommended clinical processes and awareness of TRAE pathophysiology. More evidence is warranted to better guide clinicians in the prevention of TRAE.

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OBJECTIVES: Transfusion-associated circulatory overload (TACO) is a severe pulmonary transfusion reaction and leading cause of transfusion-related morbidity and mortality in Europe. TACO is of particular importance in critically ill patients, since they often receive blood transfusions and have multiple risk factors for TACO. This study investigates transfusion practices in patients at risk of developing TACO, and furthermore knowledge concerning risk factors, diagnoses and treatment strategies among Dutch intensive care unit (ICU) fellows. MATERIAL AND METHODS: An unannounced paper-based survey was conducted among Dutch ICU fellows during an educational conference. The survey consisted of 16 multiple and open choice questions. RESULTS: Of all 65 Dutch ICU fellows 56.8% completed the survey; of respondents 88.9% identified the correct constellation of symptoms for TACO. In total, 29.7% of the respondents are aware they are obligated to report TACO cases to the blood bank. Major risk factors for TACO that respondents identified were reduced left ventricular function, infusion volume and infusion rate. In a non-emergency setting, 45.9% of fellows start red blood cell transfusion with 2 units or more. Transfusion rates exceeded national guidelines in 15.4% of fictitious cases. TACO is treated with furosemide by 94.5% of the fellows, however goals of the therapy varied greatly. CONCLUSION: Dutch ICU fellows are knowledgeable of TACO symptoms, risk factors and treatment, however knowledge on reporting and transfusion practice in the setting of at risk patients for TACO should be improved.

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