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Australian Red Cross Lifeblood has seen a 50 % increase in demand for phenotyped red blood cell (RBC) units between 2016-2018 and a 30 % increase in demand in 2018 to perform molecular RBC typing on patient samples. Lifeblood conducted a survey to understand transfusion laboratory practices for requesting patient phenotyping and/or molecular RBC typing and for selecting phenotyped RBC units in various patient groups.
An electronic Qualtrics survey form was sent to 296 transfusion laboratories with questions designed to understand the practice of selecting phenotyped RBC units and reasons for requesting extended serology or molecular RBC typing.
49 (16.6 %) transfusion laboratories provided data. Reasons to request extended phenotyping and/or molecular RBC typing for patients included; chronic transfusion (n = 31 laboratories), sickle cell disease (n = 25), Thalassemia (n = 23), requirement for anti-CD38 or other MAB therapy (n = 23) or Myelodysplasia (n = 22). Forty-seven transfusion laboratories provided responses with reasons for requesting molecular RBC typing which included predicting phenotype in patients with multiple antibodies (n = 31), prior to administering anti-CD38 or other MAB therapies (n = 29), for pregnancy related transfusions (n = 28) or for confirming the phenotype of recently transfused patients (n = 18).
Transfusion laboratory practices indicated that phenotyped RBC units were selected for patients requiring chronic transfusion support and/or undergoing MAB therapy. Requests for molecular RBC typing occurred for more complex patient requirements where serological investigations were not suitable or possible due to reagent restrictions.
Transfusion laboratory practices indicated that phenotyped RBC units were selected for patients requiring chronic transfusion support and/or undergoing MAB therapy. Requests for molecular RBC typing occurred for more complex patient requirements where serological investigations were not suitable or possible due to reagent restrictions.Anti-aquaporin-4 (AQP4) antibody-positive optic neuritis is a condition in which a patient testing positive for anti-AQP4 antibody presents with optic neuritis only. The disease is classified as a neuromyelitis optica spectrum disorder (NMOSD) and is a steroid-resistant refractory optic neuritis. Patients are treated by oral administration of steroids, steroid pulse therapy, and apheresis therapy. The patient in our case was a 48-year-old female who was diagnosed with anti-AQP4 antibody-positive optic neuritis by her ophthalmologist, and was referred to our hospital. Selective plasma exchange (SePE) was initially started, but she strongly preferred treatment as an outpatient due to family circumstances. Therefore, selective immunoadsorption (SeIA) was used from the second session to minimize loss of coagulation factors. The RRs were 16.5-33.3% for anti-AQP4 antibody, 7.48-18.57% for fibrinogen, and 0.8-4.57% for factor XIII. After the 7th SeIA session, the patient was followed up with a maintenance dose of 10 mg/day oral prednisolone as an outpatient at our Department of Ophthalmology. This is the first report to investigate the removal rate (RR) of anti-AQ4 antibody using SeIA. In our case, the anti-AQP4 antibody level before the last SeIA session was still not completely negative, but there was clinical improvement in vision. SeIA was highly effective in maintaining coagulation factor levels. Therefore, our results suggest that SeIA is a safe treatment that can be performed in an outpatient setting.
Pediatric PBSC harvests pose specific challenges during apheresis and a knowledge of the same and variables affecting PBSC collection are very important in planning these procedures. In the present study safety profile of pediatric PBSC procedures and variables influencing the successful collection were analyzed.
Pediatric PBSC harvest data for 3 years was reviewed for donor, procedural and product parameters and any specific challenges faced during the procedures. Successful PBSC collection was defined when CD34 dose obtained was ≥2 × 10
cells/Kg of recipients' body weight.
85 PBSC collections performed on 46 children (age range 1.5-15 years) were included. Sixty-two procedures were on autologous donors and 23 on allogenic donors. The median CD34+ cell dose in the PBSC product per procedure was 2.12 × 10
cells/Kg for autologous procedures and 4.6 × 10
cells/Kg for allogenic procedures. Elenestinib molecular weight Systemic adverse reaction was observed during only one procedure (0.01 %) and was managed conservatively. Successful dose was collected in 52 procedures (61.17 %) and was significantly associated with CD34+ count of more than 19.7/μL, monocyte count of more than 1.65 × 10
/μL, allogenic collection and female gender (p = 0.00001, p = 0.011, p = 0.00052, and p = 0.0001, respectively).
PBSC collection is safe in pediatric age groups and pre-procedure CD34 count of ≥20/μL on the day of collection may result in successful collection of stem cell dose. It is important to identify factors associated with failed collection for appropriate counselling and justifying pre-emptive use of stem cell mobilizing agents.
PBSC collection is safe in pediatric age groups and pre-procedure CD34 count of ≥20/μL on the day of collection may result in successful collection of stem cell dose. It is important to identify factors associated with failed collection for appropriate counselling and justifying pre-emptive use of stem cell mobilizing agents.
Subcapital fractures of the 5th metacarpal bone (MCV) represent a common injury. Volar angulation measurement is essential for treatment decision-making and therefore needs a reliable and valid method. The purpose of the present study was to investigate a new technique for volar angulation measurement, called the "Trigonometric Technique" (TT), and to compare the TT with the reference standard based on computed tomography (CT).
Quantifying volar angulation in MCV neck fractures with the TT shows no difference compared to the angle measured on CT scans.
Fifteen patients (14 men and 1 woman) with a mean age of 37±16years (range, from 16 to 72 years) who suffered MCV neck fracture and met the inclusion and exclusion criteria were selected for this prospective cohort study. Radiologic investigation included simple dorsopalmar (DP) radiographs and CT scans from the injured hand. Volar angulation measurements were performed by three observers at two time points comparing the TT to measurements obtained on CT scans.
Read More: https://www.selleckchem.com/products/elenestinib-phosphate.html
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