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Agrawal S, Chowdhry M, Thakur UK. ABO-incompatible granulocyte transfusion: Is ABO subgroup a barrier? Asian J Transfus Sci 2022; 16:273-275. [PMID: 36687538 PMCID: PMC9855222 DOI: 10.4103/ajts.ajts_8_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 01/24/2022] [Accepted: 01/30/2022] [Indexed: 01/25/2023] Open
Abstract
Granulocyte transfusion (GTx) is an efficient and compelling treatment option for patients with neutropenia following hematopoietic stem cell transplant. The donor pool for granulocyte harvest is limited to close friends and family members and the donors accepted are often of the same ABO Rh type. We report a case of ABO-incompatible prophylactic GTx, in a case of acute myeloblastic leukemia. Postcollection processing of the granulocyte product was done to reduce the red blood cell volume to <5 ml, making it safe for transfusion. The transfusion was successful in stabilizing the total leukocyte counts in the patient. The patient was monitored, and there were no adverse reactions posttransfusion.
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Affiliation(s)
- Soma Agrawal
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, New Delhi, India
| | - Mohit Chowdhry
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, New Delhi, India
| | - Uday Kumar Thakur
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, New Delhi, India
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2
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Chowdhry M, Agrawal S, Prakash B, Thakur UK, Mishra M. Platelet additive solution suspended apheresis platelets in a tertiary care hospital: A step toward universal single donor platelets. Asian J Transfus Sci 2022; 16:238-244. [PMID: 36687537 PMCID: PMC9855201 DOI: 10.4103/ajts.ajts_145_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 11/14/2021] [Accepted: 12/11/2021] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Transfusion of ABO-compatible single donor platelets (SDP) is preferable for better outcomes over group switchover SDP. The use of SDP containing ABO-incompatible plasma is associated with a risk of allergic and acute hemolytic transfusion reactions. Moreover, high titer O group donors SDP impose a further threat to patient safety. Platelet additive solution (PAS) is used worldwide for the storage of platelets which reduces plasma volume available in SDP. SSP + (Macopharma) is one such PAS which can provide improved availability, logistical management, decrease wastage, and improvement in patient safety. The aim of this study was to assess the feasibility of using PAS to obtain low titer SDP units which can be utilized across a larger patient population and to study quality control parameters of these units. MATERIALS AND METHODS The study was performed in the department of Transfusion Medicine from June 2017 to January 2018 after clearance from the Institutional Review Board. The study design comprised two cohorts (A and B). In cohort A, the temporal trend of in-vitro changes in the quality parameters was tested and analyzed for PAS modified and unmodified products on days 1, 5 and 7. In cohort B, the original plasma from the SDP donors of all blood group donors except the AB group was tested for antibody titers before (prepreparation) and after modification (postpreparation) by PAS. RESULTS In cohort A, in the control group, there was a significant change in the mean platelet volume, potassium, and bicarbonate levels from day 1 to day 7, whereas no significant change in the biochemical parameters was noted in the study group where PAS was used. In cohort B, on comparing the anti-A and anti-B, before and after modification of SDP with PAS, there was a significant reduction in the median titers across all the groups studied. CONCLUSION PAS added SDP is an efficient strategy to reduce the ABO-antibody levels significantly. PAS added SDP also helps in the better inventory management of available groups.
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Affiliation(s)
- Mohit Chowdhry
- Department of Transfusion Medicine, Indraprastha Apollo Hospital, New Delhi, India
| | - Soma Agrawal
- Department of Transfusion Medicine, Indraprastha Apollo Hospital, New Delhi, India
| | - Bindu Prakash
- Department of Transfusion Medicine, Indraprastha Apollo Hospital, New Delhi, India
| | - Uday Kumar Thakur
- Department of Transfusion Medicine, Indraprastha Apollo Hospital, New Delhi, India
| | - Manoj Mishra
- Department of Transfusion Medicine, Indraprastha Apollo Hospital, New Delhi, India
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Thakur UK, Kaman L, Singh C, Kumar M, Bhukal I, Shree R. Whipple's pancreaticoduodenectomy for cancer of the head of the pancreas in a patient with amyotrophic lateral sclerosis: perioperative challenges. Ann R Coll Surg Engl 2021; 103:e72-e73. [PMID: 33185456 PMCID: PMC9773894 DOI: 10.1308/rcsann.2020.7009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/10/2020] [Indexed: 11/22/2022] Open
Abstract
The association of amyotrophic lateral sclerosis and pancreatic cancer is rare. Amyotrophic lateral sclerosis is a neurodegenerative disease characterised by pure motor symptoms in the form of progressive muscle weakness and wasting, and can involve the bulbar and respiratory muscles, leading to significant morbidity. Successful surgery for patients with amyotrophic lateral sclerosis for pancreatic cancer has rarely been reported. Surgery in such patients is a dual-edged sword and is decided based on risk-benefit ratio. Patients are at high risk for general anaesthesia because of muscular weakness, increased sensitivity to muscle relaxants and certain anaesthetic drugs. There is a high chance of prolonged postoperative ventilatory support, aspiration pneumonia and pulmonary complications. We report a patient with cancer of the head of the pancreas who underwent successful elective pancreaticoduodenectomy.
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Affiliation(s)
- UK Thakur
- Department of General Surgery, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - L Kaman
- Department of General Surgery, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - C Singh
- Department of General Surgery, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - M Kumar
- Department of General Surgery, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - I Bhukal
- Department of Anaesthesia, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - R Shree
- Department of Neurology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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Chowdhry M, Agrawal S, Thakur UK. A case of rare anti-Hro alloantibody in a tertiary care center in India. Asian J Transfus Sci 2019; 13:54-56. [PMID: 31360012 PMCID: PMC6580840 DOI: 10.4103/ajts.ajts_26_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Anti-Hro is an alloantibody produced in individuals with -D- phenotype after a sensitizing event. Owing to the rarity of this antigen negative unit, registration in rare donor registries helps in procuring blood components at the earliest. We had a patient of -D- with anti-Hro antibody who required 7 units of red cells which was unavailable at our center. The patients near relatives were typed in search of a similar phenotype blood. Search was made for the rare units and Japanese Red Cross Society, American Red Cross Society, and International Blood Group Reference Laboratory, United Kingdom was contacted. Patient's brother and mother were typed as -D- and one unit from each of them was collected, irradiated, and transfused to the patient. Five units were imported from the Japanese Red Cross Society, Japan. Accessibility for identification and confirmation of rare blood groups and provision of the same can be centralized and liaison with the international registries can go a long way in the provision of blood components at the earliest.
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Affiliation(s)
- Mohit Chowdhry
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, New Delhi, India
| | - Soma Agrawal
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, New Delhi, India
| | - Uday Kumar Thakur
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, New Delhi, India
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Mishra VG, Thakur UK, Shah DJ, Das MK, Jeyakumar S, Ramanjaneyulu PS. Pyrohydrolysis separation of percentile level boron in borated Zr-Nb alloy and its determination by ion chromatography. SEP SCI TECHNOL 2018. [DOI: 10.1080/01496395.2018.1546742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
| | - Uday Kumar Thakur
- Radioanalytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Dipti Jayesh Shah
- Radioanalytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Mrinal Kanti Das
- Radioanalytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Subbiah Jeyakumar
- Radioanalytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai, India
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Makroo RN, Sardana R, Mediratta L, Butta H, Thakur UK, Agrawal S, Chowdhry M, Kumar S, Chokroborty S. Evaluation of bacterial inactivation in random donor platelets and single-donor apheresis platelets by the INTERCEPT blood system. Asian J Transfus Sci 2018; 12:146-153. [PMID: 30692800 PMCID: PMC6327773 DOI: 10.4103/ajts.ajts_87_17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND: Blood transfusion of contaminated components is a potential source of sepsis by a wide range of known and unknown pathogens. Collection mechanism and storage conditions of platelets make them vulnerable for bacterial contamination. Several interventions aim to reduce the transfusion of contaminated platelet units; however, data suggest that contaminated platelet transfusion remains very common. AIM: A pathogen inactivation system, “INTERCEPT”, to inactivate bacteria in deliberately contaminated platelet units was implemented and evaluated. MATERIALS AND METHODS: Five single-donor platelets (SDP) and five random donor platelets (RDP) were prepared after prior consent of donors. Both SDP and RDP units were deliberately contaminated by stable stock ATCC Staphylococcus aureus and Escherichia coli, respectively, with a known concentration of stock culture. Control samples were taken from the infected units and bacterial concentrations were quantified. The units were treated for pathogen inactivation with the INTERCEPT (Cerus Corporation, Concord, CA) Blood system for platelets (Amotosalen/UVA), as per the manufacturer's instructions for use. Post illumination, test samples were analyzed for any bacterial growth. RESULTS: Post-illumination test samples did not result in any bacterial growth. A complete reduction of >6 log10S. aureus in SDP units and >6 log10Escherichia coli in RDP units was achieved. CONCLUSION: The INTERCEPT system has been shown to be very effective in our study for bacterial inactivation. Implementation of INTERCEPT may be used as a mitigation against any potential bacterial contamination in platelet components.
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Affiliation(s)
- Raj Nath Makroo
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, New Delhi, India
| | - Raman Sardana
- Department of Microbiology, Indraprastha Apollo Hospitals, New Delhi, India
| | - Leena Mediratta
- Department of Microbiology, Indraprastha Apollo Hospitals, New Delhi, India
| | - Hena Butta
- Department of Microbiology, Indraprastha Apollo Hospitals, New Delhi, India
| | - Uday Kumar Thakur
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, New Delhi, India
| | - Soma Agrawal
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, New Delhi, India
| | - Mohit Chowdhry
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, New Delhi, India
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Makroo RN, Agrawal S, Chowdhry M, Bhatia A, Thakur UK. Red cell alloimmunization & role of advanced immunohaematological support in liver transplantation. Indian J Med Res 2017; 145:488-491. [PMID: 28862180 PMCID: PMC5663162 DOI: 10.4103/ijmr.ijmr_1974_15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Background & objectives: Transfusion support forms an integral part of liver transplantation programme. Advanced immunohaematology services are required to deal with complex serological problems that can complicate transfusion therapy in these patients. Here, we report on red cell alloimmunization and presence of alloimmunization in donors and patients undergoing liver transplantation in a tertiary care hospital in north India. Methods: Records of 1433 liver transplants performed from January 2009 to March 2015 were retrieved and reviewed. Antibody screening was performed both for liver donors, and recipients and antibody identification was performed for the screen-positive patients. Results: Of the 1433 liver recipients, 32 (2.3%) developed antibodies. Seventeen patients had one or more alloantibodies, five had autoantibodies with an underlying alloantibody and 10 had only autoantibodies in their plasma. The overall alloimmunization rate was 1.5 per cent with 25 alloantibodies identified in 22 patients. Anti-E was the most common specificity identified. Interpretation & conclusions: The presence of alloantibodies can complicate transfusion therapy in patients undergoing liver transplantation, who are already at a high risk of being heavily transfused owing to the nature of surgery and the haemostatic dysfunction from chronic liver disease. Therefore, screening for irregular red cell alloantibodies combined with a rational blood transfusion policy may be essential for these patients.
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Affiliation(s)
- Raj Nath Makroo
- Department of Transfusion Medicine, Molecular Biology & Transplant Immunology, Indraprastha Apollo Hospitals, New Delhi, India
| | - Soma Agrawal
- Department of Transfusion Medicine, Molecular Biology & Transplant Immunology, Indraprastha Apollo Hospitals, New Delhi, India
| | - Mohit Chowdhry
- Department of Transfusion Medicine, Molecular Biology & Transplant Immunology, Indraprastha Apollo Hospitals, New Delhi, India
| | - Aakanksha Bhatia
- Department of Transfusion Medicine, Molecular Biology & Transplant Immunology, Indraprastha Apollo Hospitals, New Delhi, India
| | - Uday Kumar Thakur
- Department of Transfusion Medicine, Molecular Biology & Transplant Immunology, Indraprastha Apollo Hospitals, New Delhi, India
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Abstract
INTRODUCTION: Our study presents an analysis of the trends of ABO antibody titers and the TPE (Therapeutic Plasma Exchange) procedures required pre and post ABO incompatible renal transplant. MATERIALS AND METHODS: Twenty nine patients underwent ABO incompatible renal transplant during the study period. The ABO antibody titers were done using the tube technique and titer reported was the dilution at which 1+ reaction was observed. The baseline titers of anti-A and anti-B antibodies were determined. The titer targeted was ≤8. Patients were subjected to 1 plasma volume exchange with 5% albumin and 2 units of AB group FFP (Fresh Frozen Plasma) in each sitting. TPE procedures post-transplant were decided on the basis of rising antibody titer with/ without graft dysfunction. RESULTS: The average number of TPE procedures required was 4-5 procedures/patient in the pretransplant and 2-3/patient in the post-transplant period. An average titer reduction of 1 serial dilution/procedure was noted for Anti-A and 1.1/procedure for Anti-B. Number of procedures required to reach the target titer was not significantly different for Anti-A and Anti-B (P = 0.98). Outcome of the transplant did not differ significantly by reducing titers to a level less than 8 (P = 0.32). The difference in the Anti-A and Anti-B titers at 14th day post-transplant was found to be clinically significant (P = 0.042). CONCLUSION: With an average of 4-5 TPE procedures pretransplant and 2-3 TPE procedures post transplants, ABO incompatible renal transplantations can be successfully accomplished.
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Affiliation(s)
- Raj Nath Makroo
- Department of Transfusion Medicine and Immunohematology, Indraprastha Apollo Hospitals, New Delhi, India
| | - Sweta Nayak
- Department of Transfusion Medicine and Immunohematology, Indraprastha Apollo Hospitals, New Delhi, India
| | - Mohit Chowdhry
- Department of Transfusion Medicine and Immunohematology, Indraprastha Apollo Hospitals, New Delhi, India
| | - Sanjiv Jasuja
- Department of Nephrology, Indraprastha Apollo Hospitals, New Delhi, India
| | - Gaurav Sagar
- Department of Nephrology, Indraprastha Apollo Hospitals, New Delhi, India
| | - N L Rosamma
- Department of Transfusion Medicine and Immunohematology, Indraprastha Apollo Hospitals, New Delhi, India
| | - Uday Kumar Thakur
- Department of Transfusion Medicine and Immunohematology, Indraprastha Apollo Hospitals, New Delhi, India
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Makroo RN, Agrawal S, Bhatia A, Chowdhry M, Thakur UK. Impact of antigenic exposures and role of molecular blood grouping in enhancing transfusion safety in chronically transfused thalassemics. Asian J Transfus Sci 2016; 10:140-4. [PMID: 27605852 PMCID: PMC4993084 DOI: 10.4103/0973-6247.187942] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Background: Red cell alloimmunization is an acknowledged complication of blood transfusion. Current transfusion practices for thalassemia do not cater to this risk. Serological phenotyping is usually not reliable in these cases unless performed before the first transfusion. Under such circumstances, molecular blood grouping is an effective alternative. Aim: To perform molecular blood group genotyping in chronically transfused thalassemia patients and assess the risk of antigenic exposure and incidence of alloimmunization with current transfusion protocols. Materials and Methods: Molecular blood group genotyping was performed for 47 chronically transfused thalassemia patients. Their 1-year transfusion records were retrieved to assess the antigenic exposure and the frequency thereof. Results: Of 47 patients, 6 were already alloimmunized (3 with anti-E and 3 with anti-K) and were receiving the corresponding antigen negative units. We observed that random selection of ABO and Rh D matched units resulted in 57.7% ±8.26% chance of Rh and Kell phenotype matching also. Forty-four patients had received one or more antigenic exposures at least once. The 6 already alloimmunized patients were further exposed to antigens other than the ones they were immunized to. During the study period, only one patient developed an alloantibody, anti-E with exposure to antigens C (92%) and/or E (32%) at each transfusion. Conclusion: Several factors apart from mere antigen exposure may influence the development of alloimmunization as most of our patients received antigenic exposures but not alloimmunized. Our data provide an impetus for future large-scale studies to understand the development of alloimmunization in such patients.
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Affiliation(s)
- Raj Nath Makroo
- Department of Transfusion Medicine, Indraprastha Apollo Hospital, New Delhi, India
| | - Soma Agrawal
- Department of Transfusion Medicine, Indraprastha Apollo Hospital, New Delhi, India
| | - Aakanksha Bhatia
- Department of Transfusion Medicine, Indraprastha Apollo Hospital, New Delhi, India
| | - Mohit Chowdhry
- Department of Transfusion Medicine, Indraprastha Apollo Hospital, New Delhi, India
| | - Uday Kumar Thakur
- Department of Transfusion Medicine, Indraprastha Apollo Hospital, New Delhi, India
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Makroo RN, Hegde V, Bhatia A, Chowdhry M, Arora B, Rosamma NL, Thakur UK. A multivariate analysis to assess the effect of packed red cell transfusion and the unit age of transfused red cells on postoperative complications in patients undergoing cardiac surgeries. Asian J Transfus Sci 2015; 9:12-7. [PMID: 25722566 PMCID: PMC4339924 DOI: 10.4103/0973-6247.150939] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Transfusion of blood components and age of transfused packed red cells (PRCs) are independent risk factors for morbidity and mortality in cardiac surgeries. MATERIALS AND METHODS We retrospectively examined data of patients undergoing cardiac surgery at our institute from January 1, 2012 to September 30, 2012. Details of transfusion (autologous and allogenic), postoperative length of stay (PLOS), postoperative complications were recorded along with other relevant details. The analysis was done in two stages, in the first both transfused and nontransfused individuals and in the second only transfused individuals were considered. Age of transfused red cells as a cause of morbidity was analyzed only in the second stage. RESULTS Of the 762 patients included in the study, 613 (80.4%) were males and 149 (19.6%) were females. Multivariate analysis revealed that factors like the number and age of transfused PRCs and age of the patient had significant bearing upon the morbidity. Morbidity was significantly higher in the patients transfused with allogenic PRCs when compared with the patients not receiving any transfusion irrespective of the age of transfused PRCs. Transfusion of PRC of over 21 days was associated with higher postoperative complications, but not with in-hospital mortality. CONCLUSION In patients undergoing cardiac surgery, allogenic blood transfusion increases morbidity. The age of PRCs transfused has a significant bearing on morbidity, but not on in-hospital mortality. Blood transfusion services will therefore have to weigh the risks and benefits of providing blood older than 21 days in cardiac surgeries.
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Affiliation(s)
- Raj Nath Makroo
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, New Delhi, India
| | - Vikas Hegde
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, New Delhi, India
| | - Aakanksha Bhatia
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, New Delhi, India
| | - Mohit Chowdhry
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, New Delhi, India
| | - Bhavna Arora
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, New Delhi, India
| | - N L Rosamma
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, New Delhi, India
| | - Uday Kumar Thakur
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, New Delhi, India
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Makroo RN, Bhatia A, Hegde V, Chowdhry M, Thakur UK, Rosamma N. Antibody screening & identification in the general patient population at a tertiary care hospital in New Delhi, India. Indian J Med Res 2014; 140:401-5. [PMID: 25366208 PMCID: PMC4248387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND & OBJECTIVES The development of alloantibodies can significantly complicate transfusion therapy and results in difficulties in cross-matching of blood. Most literature on alloimmunization is limited to multitransfused individuals, with very few studies on the general hospital patients. This study was aimed at assessing the frequency and type of unexpected red cell antibodies in the general patient population at a multispecialty tertiary care centre in New Delhi, India. METHODS The results of 49,077 antibody screening tests carried out on patients, from January 2009 to December 2012 were analyzed. The clinical and transfusion records were reviewed. The data were compiled and statistically analysed. RESULTS A total of 49,077 (29,917; 60.96% males and 19,160; 39.04% females) patient samples were screened for the presence of unexpected antibodies. Antibody screening was positive in 403 patients (0.82%). In the serum samples of 164 patients only autoantibodies were identified, 27 revealed autoantibodies with one or more underlying alloantibodies, while 212 patients had only alloantibody/ies in their serum. The overall alloimmunization rate was 0.49 per cent. Antibodies against the Rh system were the most frequent (64.1%), the most common alloantibody identified being anti E (37.2%), followed by anti D (19.2%). INTERPRETATION & CONCLUSIONS Since clinically significant antibodies are frequently detected in our patient population, antibody screening and if required, identification is the need of the hour. Since antibodies against the common Rh and Kell blood group antigens are the most frequent, provision of Rh and Kell matched red cells may be of protective value.
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Affiliation(s)
- Raj Nath Makroo
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, New Delhi, India,Reprint requests: Dr R.N. Makroo, Director, Department of Transfusion Medicine, Gate No. 9, Indraprastha Apollo Hospitals Sarita Vihar, Mathura Road, New Delhi 110 044, India e-mail: /
| | - Aakanksha Bhatia
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, New Delhi, India
| | - Vikas Hegde
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, New Delhi, India
| | - Mohit Chowdhry
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, New Delhi, India
| | - Uday Kumar Thakur
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, New Delhi, India
| | - N.L. Rosamma
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, New Delhi, India
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Mishra VG, Sali SK, Shah DJ, Thakur UK, Sawant RM, Tomar BS. Studies on U-Zr and U-Pu-Zr alloys for determination of Cl and F using pyrohydrolysis. RADIOCHIM ACTA 2014. [DOI: 10.1515/ract-2013-2203] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Pyrohydrolysis method was studied for the separation of Cl and F from U-Zr and U-Pu-Zr alloy nuclear
fuels and determination by ion chromatography. A detailed study was performed on pyrohydrolysed
products of U-Zr alloy, obtained on heating in moist argon and oxygen atmospheres using X-ray powder
diffraction (XRD) and thermogravimtric methods. Using oxygen as the carrier gas pyrohydrolysis
performed at 900 ℃ was complete within 30 min. It was found that, moist
oxygen as carrier gas only could open the matrix completely within stipulated time. This was
attributed to the formation of α-U3O8, which was not possible in moist argon
heating for 30 min. The pyrohydrolysis in moist Ar required 60–90 min for
complete removal of halides. The method was then successfully extrapolated to U-Pu-Zr alloys. The
results showed recovery up to 90% or above for the optimized conditions.
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Affiliation(s)
| | | | - Dipti Jayesh Shah
- Radioanalytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India
| | - Uday Kumar Thakur
- Radioanalytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India
| | - Ramesh Mahadeo Sawant
- Radioanalytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India
| | - Bhupendra Singh Tomar
- Radioanalytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India
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Makroo RN, Raina V, Kumar P, Thakur UK. A prospective audit of transfusion requests in a tertiary care hospital for the use of fresh frozen plasma. Asian J Transfus Sci 2011; 1:59-61. [PMID: 21938235 PMCID: PMC3168122 DOI: 10.4103/0973-6247.33847] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Aims and Background: Like any other drug, therapeutic use of fresh frozen plasma (FFP) has its own side effects, adverse reactions and risks involved. Overall use of FFP has been on the increase in most tertiary care hospitals. Since the guidelines for FFP use in a clinical setting are not well defined, the present study aims at defining the appropriateness of use of FFP in the light of its risks and benefits as a drug. Materials and Methods: We carried out a prospective survey of 821 transfusion orders for 2,915 units of fresh frozen plasma components in our hospital over a 4-month period and recorded indication for transfusion and the number of components requested. Results: Five hundred seventy-three (69.8%) of transfusion requests affecting 2,202 (75.54%) units of FFP were appropriately indicated, while 248 (30.2%) of FFP requests were inappropriately indicated. The majority of fresh frozen plasma requests used were for surgical bleeding (22.77%) because of the deranged coagulation profile before surgery in most of the patients. It was followed by liver disease and transplantation (12.54%). Out of 821 patients, 586 were male and 235 were female. Conclusion: Inappropriate requests accounted for 30.2% of the total FFP requests in patients who had normal coagulation parameters. Regular audits, appropriate training of medical staff, conducting regular CMEs are the measures being incorporated in our hospital to rationalize the use of blood components.
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Affiliation(s)
- R N Makroo
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, Sarita Vihar, New Delhi, India
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Makroo RN, Raina V, Bhatia A, Gupta R, Majid A, Thakur UK, Rosamma NL. Evaluation of the red cell hemolysis in packed red cells during processing and storage. Asian J Transfus Sci 2011; 5:15-7. [PMID: 21572708 PMCID: PMC3082708 DOI: 10.4103/0973-6247.75970] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Introduction: Storage of red cells causes a progressive increase in hemolysis. In spite of the use of additive solutions for storage and filters for leucoreduction, some amount of hemolysis is still inevitable. The extent of hemolysis, however, should not exceed the permissible threshold for hemolysis even on the 42nd day of storage. Study Design and Methods: Eighty units of packed red cells, 40 stored in SAGM post leucoreduction and 40 in ADSOL without leucoreduction filters, were evaluated for plasma hemoglobin by HemoCue Plasma Hemoglobin analyzer on the day of collection and on the 7th, 14th, 21st, 28th, 35th and 42nd days thereafter. The hemoglobin and hematocrit were also noted for all these units by the Beckman and Coulter analyzer. Percentage hemolysis was then calculated. Observations: Hemolysis progressively increased with the storage period in all the stored red cell units (SAGM as well ADSOL). However, on day 42nd of storage, free hemoglobin in all the red cell units was within the permissible level (which is 0.8% according to the Council of Europe guidelines and 1% as per the US FDA guidelines). The mean percentage hemolysis was slightly higher in the SAGM-containing bags with an integral leucoreduction filter as compared to the bags containing ADSOL. However this difference was marginal and not statistically significant. Conclusion: Hemolysis of the red cells increases with storage. However, maximum hemolysis does not exceed the permissible limits at any time thereby indicating the effect of optimum processing and storage conditions on red cell hemolysis.
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Affiliation(s)
- R N Makroo
- Department of Transfusion Medicine, Indraprastha Apollo Hospitals, Sarita Vihar, New Delhi 110 076, India
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Makroo RN, Raina V, Bhatia A, Gupta R, Majid A, Thakur UK, Rosamma NL. Evaluation of Red Cell Hemolysis in Packed Red Cells During Processing and Storage. Apollo Medicine 2010. [DOI: 10.1016/s0976-0016(12)60005-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Makroo RN, Raina V, Chowdhry M, Thakur UK, Rosamma NL. Audit of Blood Transfusion Services (BTS) in Total Knee Replacement (Tkr) And Total Hip Replacement (Thr) Surgery: A Prospective Study. Apollo Medicine 2009. [DOI: 10.1016/s0976-0016(11)60030-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
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