scholarly journals Blood transportation using multi-vehicle systems; optimal blood transport temperature in terms of hemolysis

2021 ◽  
Vol 9 (1) ◽  
pp. 5-10
Author(s):  
Fumiatsu Yakushiji ◽  
Koki Yakushiji ◽  
Mikio Murata ◽  
Naoki Hiroi ◽  
Hiroshi Fujita

Recently, the use of drones has been proposed for blood transportation. Therefore, in this review, we first detailed the history of blood storage and transportation for red blood cell transfusion, and then presented ideas for creating rules to improve the safety of blood transportation, based on the idea that hemolysis is the problem for blood quality. In particular, it touches on the current logistics of blood transportation in which public transportation is not used, including the recent use of drones to transport blood, and points out the problems with this system. We discuss how instances of improper red blood cell transportation with inadequate temperature control are still observed, and that temperature control, vibration remain the major hindrances to appropriate blood transportation. Therefore, a set of rules that will contribute to appropriate and rapid blood transportation is warranted. Moreover, there are notable differences in blood storage rule between Japan and the US and UK, and there is no legal transportation rule in Japan. Based on our review and experience, we think that basic temperature control at 2–6°C should always be maintained to prevent blood deterioration even if unmanned aerial vehicle (drone) technologies are available.

Author(s):  
Fumiatsu Yakushiji ◽  
Koki Yakushiji ◽  
Mikio Murata ◽  
Naoki Hiroi ◽  
Hiroshi Fujita

Recently, the use of drones has been proposed for blood transportation. Therefore, in this review, we first detailed the history of blood storage and transportation for red blood cell transfusion, and then presented ideas for creating rules to improve the safety of blood transportation, based on the idea that hemolysis is the problem for blood quality. In particular, it touches on the current logistics of blood transportation in which public transportation is not used, including the recent use of drones to transport blood, and points out the problems with this system. We discuss how instances of improper red blood cell transportation with inadequate temperature control are still observed, and that temperature control, vibration remain the major hindrances to appropriate blood transportation. Therefore, a set of rules that will contribute to appropriate and rapid blood transportation is warranted. Moreover, there are notable differences in blood storage rule between Japan and the US and UK, and there is no legal transportation rule in Japan. Based on our review and experience, we think that basic temperature control at 2–6°C should always be maintained to prevent blood deterioration even if unmanned aerial vehicle (drone) technologies are available.


2021 ◽  
Vol 10 (11) ◽  
pp. 2475
Author(s):  
Olivier Peyrony ◽  
Danaé Gamelon ◽  
Romain Brune ◽  
Anthony Chauvin ◽  
Daniel Aiham Ghazali ◽  
...  

Background: We aimed to describe red blood cell (RBC) transfusions in the emergency department (ED) with a particular focus on the hemoglobin (Hb) level thresholds that are used in this setting. Methods: This was a cross-sectional study of 12 EDs including all adult patients that received RBC transfusion in January and February 2018. Descriptive statistics were reported. Logistic regression was performed to assess variables that were independently associated with a pre-transfusion Hb level ≥ 8 g/dL. Results: During the study period, 529 patients received RBC transfusion. The median age was 74 (59–85) years. The patients had a history of cancer or hematological disease in 185 (35.2%) cases. Acute bleeding was observed in the ED for 242 (44.7%) patients, among which 145 (59.9%) were gastrointestinal. Anemia was chronic in 191 (40.2%) cases, mostly due to vitamin or iron deficiency or to malignancy with transfusion support. Pre-transfusion Hb level was 6.9 (6.0–7.8) g/dL. The transfusion motive was not notified in the medical chart in 206 (38.9%) cases. In the multivariable logistic regression, variables that were associated with a higher pre-transfusion Hb level (≥8 g/dL) were a history of coronary artery disease (OR: 2.09; 95% CI: 1.29–3.41), the presence of acute bleeding (OR: 2.44; 95% CI: 1.53–3.94), and older age (OR: 1.02/year; 95% CI: 1.01–1.04). Conclusion: RBC transfusion in the ED was an everyday concern and involved patients with heterogeneous medical situations and severity. Pre-transfusion Hb level was rather restrictive. Almost half of transfusions were provided because of acute bleeding which was associated with a higher Hb threshold.


Endoscopy ◽  
2021 ◽  
Author(s):  
Konstantinos Triantafyllou ◽  
Paraskevas Gkolfakis ◽  
Ian M. Gralnek ◽  
Kathryn Oakland ◽  
Gianpiero Manes ◽  
...  

Main Recommendations 1 ESGE recommends that the initial assessment of patients presenting with acute lower gastrointestinal bleeding should include: a history of co-morbidities and medications that promote bleeding; hemodynamic parameters; physical examination (including digital rectal examination); and laboratory markers. A risk score can be used to aid, but should not replace, clinician judgment.Strong recommendation, low quality evidence. 2 ESGE recommends that, in patients presenting with a self-limited bleed and no adverse clinical features, an Oakland score of ≤ 8 points can be used to guide the clinician decision to discharge the patient for outpatient investigation.Strong recommendation, moderate quality evidence. 3 ESGE recommends, in hemodynamically stable patients with acute lower gastrointestinal bleeding and no history of cardiovascular disease, a restrictive red blood cell transfusion strategy, with a hemoglobin threshold of ≤ 7 g/dL prompting red blood cell transfusion. A post-transfusion target hemoglobin concentration of 7–9 g/dL is desirable.Strong recommendation, low quality evidence. 4 ESGE recommends, in hemodynamically stable patients with acute lower gastrointestinal bleeding and a history of acute or chronic cardiovascular disease, a more liberal red blood cell transfusion strategy, with a hemoglobin threshold of ≤ 8 g/dL prompting red blood cell transfusion. A post-transfusion target hemoglobin concentration of ≥ 10 g/dL is desirable.Strong recommendation, low quality evidence. 5 ESGE recommends that, in patients with major acute lower gastrointestinal bleeding, colonoscopy should be performed sometime during their hospital stay because there is no high quality evidence that early colonoscopy influences patient outcomes.Strong recommendation, low quality of evidence. 6 ESGE recommends that patients with hemodynamic instability and suspected ongoing bleeding undergo computed tomography angiography before endoscopic or radiologic treatment to locate the site of bleeding.Strong recommendation, low quality evidence. 7 ESGE recommends withholding vitamin K antagonists in patients with major lower gastrointestinal bleeding and correcting their coagulopathy according to the severity of bleeding and their thrombotic risk. In patients with hemodynamic instability, we recommend administering intravenous vitamin K and four-factor prothrombin complex concentrate (PCC), or fresh frozen plasma if PCC is not available.Strong recommendation, low quality evidence. 8 ESGE recommends temporarily withholding direct oral anticoagulants at presentation in patients with major lower gastrointestinal bleeding.Strong recommendation, low quality evidence. 9 ESGE does not recommend withholding aspirin in patients taking low dose aspirin for secondary cardiovascular prevention. If withheld, low dose aspirin should be resumed, preferably within 5 days or even earlier if hemostasis is achieved or there is no further evidence of bleeding.Strong recommendation, moderate quality evidence. 10 ESGE does not recommend routinely discontinuing dual antiplatelet therapy (low dose aspirin and a P2Y12 receptor antagonist) before cardiology consultation. Continuation of the aspirin is recommended, whereas the P2Y12 receptor antagonist can be continued or temporarily interrupted according to the severity of bleeding and the ischemic risk. If interrupted, the P2Y12 receptor antagonist should be restarted within 5 days, if still indicated.Strong recommendation, low quality evidence.


2015 ◽  
Vol 15 (11) ◽  
pp. e151-e156 ◽  
Author(s):  
Justyna Bartoszko ◽  
Tony Panzarella ◽  
Anthea Lau ◽  
Aaron Schimmer ◽  
Andre Schuh ◽  
...  

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