scholarly journals Persistence of Lymphocytotoxic Antibodies in Patients in the Trial to Reduce Alloimmunization to Platelets: Implications for Using Modified Blood Products

2011 ◽  
Vol 25 (2) ◽  
pp. 102-110 ◽  
Author(s):  
Sherrill J. Slichter ◽  
Douglas Bolgiano ◽  
Kuo-Jang Kao ◽  
Thomas S. Kickler ◽  
Janice McFarland ◽  
...  
Keyword(s):  
Blood Products ◽  
Lymphocytotoxic Antibodies

scholarly journals Identification of anti-HLA-A1 antibodies in a multi-transfused patient: Case report

2004 ◽  
Vol 57 (1-2) ◽  
pp. 77-80
Author(s):  
Svetlana Vojvodic ◽  
Stevan Popovic ◽  
Ivana Urosevic
Keyword(s):  
Single Dose ◽  
Case Report ◽  
Hla Class I ◽  
Blood Transfusions ◽  
Blood Products ◽  
Platelet Concentrates ◽  
Patient Case ◽  
Hla Antibodies ◽  
Lymphocytotoxic Antibodies ◽  
Microlymphocytotoxicity Test

Introduction HLA antibodies develop as a result of alloimmunization to HLA class I and II antigens. Their appearance is associated with frequent blood transfusions, allogeneic tissue and organ transplantation, pregnancy and immunization. It is established that after usage of single dose HLA nonmatched leukocytes, circulating lymphocytotoxic antibodies appear in serum of recipients, 10 to 12 days after alloimmunization. Case report This article describes a case report of a multi-transfused patient, with identified HLA-A1 antibodies established by using microlymphocytotoxicity test and two different panels of HLA typed lymphocytes. The case report shows occurrence of febrile posttransfusion nonhemolytic reaction (FNHTR) in our patient after application of 410 ml resuspended erythrocytes. After transfusiologists recommendations for detecting lymphocytotoxic antibodies in patient's serum, we determined a specificity of monospecific antibody which caused posttrasnfusion FNHTR. Discussion and conclusion FNHTR may be caused by antileukocyte antibodies or immunoinflammatory cytokines. It is more frequent in patients receiving platelet concentrates (15-30%) than those receiving red blood cell products (1%). This case report shows that FNHTR was caused by HLA-A1 antibody in a patient who received 111 various blood products.

GB Virus C/Hepatitis G Virus Isolates in Japanese Haemophiliacs and their Origins

1998 ◽  
Vol 80 (08) ◽  
pp. 242-245 ◽  
Author(s):  
Yoshihide Fukuda ◽  
Tetsuo Hayakawa ◽  
Junki Takamatsu ◽  
Hidehiko Saito ◽  
Hiroaki Okamoto ◽  
...  
Keyword(s):  
Sequence Similarity ◽  
West African ◽  
Blood Products ◽  
Hepatitis G Virus ◽  
Gb Virus C ◽  
Route Of Transmission ◽  
Polymerase Chain ◽  
Hepatitis G ◽  
Virus C ◽  
Virus Isolates

SummaryJapanese haemophiliacs have been at high risk for infection with parenterally-transmissible viruses through the use of blood products, especially imported ones. Recently, novel transfusion-transmissible virus, GB virus C (GBV-C)/hepatitis G virus (HGV) were isolated. We investigated the origin and route of transmission of GBV-C/HGV isolates in haemophiliacs in Japan. GBV-C/HGV RNA was measured by nested reverse transcription polymerase chain reaction in 91 Japanese haemophiliacs. Phylogenetic analysis and genotypic grouping of GBV-C/HGV isolates in Japanese haemophiliacs were performed based on sequences in the 5’ untranslated region, and the characteristics were compared with those of reported isolates. GBV-C/HGV infection was present in 19 of 91 haemophiliacs (20.9%). Sequence analysis showed that 15 of the 19 isolates (78.9%) showed sequence similarity to a group in which mainly West African isolates have been reported. The other 4 isolates (21.1%) showed sequence similarity to Asian isolates. None of the GBV-C/HGV isolates showed sequences similar to those generally found in isolates from USA and Europe. The majority of GBV-C/HGV isolates found in Japanese haemophiliacs who are considered to have been infected by imported blood products were similar to those detected in West Africa.

Open and laparoscopic surgeries are associated with comparable 90 day morbidities and mortalities following ERAS protocols- A retrospective Study. (Preprint)

2020 ◽  
Author(s):  
BHAVIN VASAVADA ◽  
Hardik Patel
Keyword(s):  
Multivariate Analysis ◽  
Retrospective Study ◽  
Mortality Rate ◽  
Operative Time ◽  
Univariate Analysis ◽  
Morbidity And Mortality ◽  
Morbidity Rate ◽  
Blood Products ◽  
Asa Score

UNSTRUCTURED All the gastrointestinal surgeries performed between April 2016 to march 2019 in our institution have been analysed for morbidity and mortality after ERAS protocols and data was collected prospectively. We performed 245 gastrointestinal and hepato-biliary surgeries between April 2016 to march 2019. Mean age of patients was 50.96 years. 135 were open surgeries and 110 were laparoscopic surgeries. Mean ASA score was 2.40, mean operative time was 111 minutes, mean CDC grade of surgery was 2.56. 40 were emergency surgeries and 205 were elective surgeries. Overall 90 days mortality rate was 8.5% and over all morbidity rate was around 9.79% . On univariate analysis morbidity was associated significantly with higher CDC grade of surgeries, higher ASA grade, more operative time, more blood products use, more hospitalstay, open surgeries,HPB surgeries and luminal surgeries(non hpb gastrointestinal surgeries) were associated with higher 90 days morbidity. On multivariate analysis no factors independently predicted morbidity. On univariate analysis 90 days mortality was predicted by grade of surgeries, higher ASA grade, more operative time, more blood products use, open surgeries and emergency surgeries. However on multivariate analysis only more blood products used was independently associated with mortality There is no difference between 90 day mortality and moribidity rates between open and laparoscopic surgeries.

scholarly journals Transfusion Medicine Informatics: Analysis of User Burden from Clinical Decision Support Alerts in Promoting Patient Blood Management

2020 ◽  
Vol 154 (Supplement_1) ◽  
pp. S123-S124
Author(s):  
H C Tsang ◽  
P Mathias ◽  
N Hoffman ◽  
M B Pagano
Keyword(s):  
Decision Support ◽  
Clinical Decision Support ◽  
Blood Product ◽  
Clinical Decision ◽  
Blood Products ◽  
Blood Management ◽  
Before And After ◽  
Blood Utilization ◽  
Transfusion Ratio ◽  
Major Project

Abstract Introduction/Objective To increase efficiency of blood product ordering and delivery processes and improve appropriateness of orders, a major project to implement clinical decision support (CDS) alerts in the electronic medical record (EMR) was undertaken. A design team was assembled including hospital and laboratory medicine information technology and clinical informatics, transfusion services, nursing and clinical services from medical and surgical specialties. Methods Consensus-derived thresholds in hemoglobin/hematocrit, platelet count, INR, and fibrinogen for red blood cell (RBC), platelet, plasma, and cryoprecipitate blood products CDS alerts were determined. Data from the EMR and laboratory information system were queried from the 12-month period before and after implementation and the data was analyzed. Results During the analysis period, 5813 RBC (avg. monthly = 484), 1040 platelet (avg. monthly = 87), 423 plasma (avg. monthly = 35), and 88 cryoprecipitate (avg. monthly = 7) alerts fired. The average time it took for a user to respond was 5.175 seconds. The total amount of time alerts displayed over 12 months was 5813 seconds (~97 minutes of user time) compared to 56503 blood products transfused. Of active CDS alerts, hemoglobin/RBC alerts fired most often with ~1:5 (31141 RBC units) alert to transfusion ratio and 4% of orders canceled (n=231) when viewing the alert, platelet alerts fired with ~1:15 (15385 platelet units) alert to transfusion ratio and 6% orders canceled (n=66), INR/plasma alerts fired with ~1:21 (8793 plasma units) alert to transfusion ratio and 10% orders canceled (n=41), cryoprecipitate alerts fired with ~1:13 (1184 cryoprecipitate units) alert to transfusion ratio and 10% orders canceled (n=9). Overall monthly blood utilization normalized to 1000 patient discharges did not appear to have statistically significant differences comparing pre- versus post-go-live, except a potentially significant increase in monthly plasma usage at one facility with p = 0.34, although possibly due to an outlier single month of heavy usage. Conclusion Clinical decision support alerts can guide provider ordering with minimal user burden. This resulted in increased safety and quality use of the ordering process, although overall blood utilization did not appear to change significantly.

scholarly journals Transfusion of blood products derived from SARS-CoV-2+ donors to patients with hematological malignancies

2021 ◽  
pp. 103105
Author(s):  
Carlo Gambacorti-Passerini ◽  
Marco Ruggeri ◽  
Andrea Aroldi ◽  
Rocco Piazza ◽  
Angela Mazzi ◽  
...  
Keyword(s):  
Hematological Malignancies ◽  
Blood Products
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