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India achieved impressive strides by providing 1.7 billion doses of the COVID-19 vaccine to more than 940 million people, attaining 100% first dose coverage and 80% overall immunization coverage as of February 9, 2022. Compared to unvaccinated individuals, vaccinated people have considerably decreased risks of infection, serious illness, hospitalization, and death. With the help of this study, we determined the prevalence of COVID-19 IgG antibodies with respect to vaccination. The cross-sectional analytical study was conducted from July 2021 to April 2022 on 809 healthy donors. All donor samples were screened for COVID-19 IgG antibodies against S1 protein using IgG ELISA kits (Qualisa COVID-19 IgG kits, Tulip, Goa, India). Data regarding COVID-19 infection history, vaccination status, type of vaccine, and the number of doses were obtained. All data were entered in Microsoft Excel and analyzed using SPSS version 21. Out of 809 blood donors, a total of 650 participants were vaccinated, among which 89.5% had COVID-19 IgG antibodies and 10.5% had no antibodies. Out of the 159 who had not taken vaccination, 52.8% of the participants had COVID-19 IgG antibodies, and 47.2% of the donors had no COVID-19 IgG antibodies. A total of 617 participants have taken the Covishield vaccine, of which 90.2% had COVID-19 IgG antibodies. A total of 32 donors have taken Covaxin, of which 78.1% had COVID-19 IgG antibodies. The above study has shown that COVID-19 vaccination enhances covid antibody formation, and multiple doses of vaccine ensure longevity of these antibodies.
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Hemolytic disease of the fetus and newborn (HDFN) due to anti-D was severe and fatal before the development of RhD immune prophylaxis. Proper screening and universal administration of Rh immune globulin has decreased the incidence of HDFN to a great extent. Pregnancy, transfusion, and transplantation still increase the chances of other alloantibody formation and the potential for HDFN. Advanced methods for immunohematology investigation allow for the identification of alloantibodies causative for HDFN other than anti-D. Many antibodies have been reported to cause HDFN, but there is scant literature where isolated anti-C is responsible for HDFN. We present here a case of severe HDFN caused by anti-C leading to severe hydrops and death of the neonate despite three intrauterine transfusions and other measures.
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Eritroblastosis Fetal , Embarazo , Femenino , Recién Nacido , Humanos , Eritroblastosis Fetal/epidemiología , Eritroblastosis Fetal/etiología , Isoanticuerpos , Hemólisis , Transfusión Sanguínea , FetoRESUMEN
Quality indicators are tools for continuous improvement to enable the blood center to achieve its standards of the highest quality. Hence, they have to be established and monitored regularly for which NABH (National Accreditation Board for Hospitals) accreditation should be sought for. This study was undertaken to assess the Key Performance Indicators (KPI) through clinical audit quality control study of ten parameters, with a goal to improve and meet the benchmark as defined by NABH. All 10 Key Performance Indicators defined by NABH were analysed prospectively in a tertiary care blood centre of southern India. Parameters were compared to that of bench mark standards. Root cause analysis of all non-conformance parameters were done. Problem were identified and action taken to achieve KPI benchmarks in all deviations. Out of the ten KPI's which were studied, more than 50% meet the quality standards. The ones that did not meet the bench mark were TTI-HIV% which was 0.44%, TTI-Syphilis (RPR)% 0.26%, Number of units received back for discarding 5.96%, PRBC wastage% (on-shelf) was 2.11%, FFP, Cryoprecipitate wastage % (on-shelf) was 2.71%, the mean TAT for crossmatch of emergency PRBC blood was 18.3 min, 41.11% of FFP QC failure failed, Delay in transfusion time beyond 30 min after issue was 19.14%, Donor Deferral rate was 16.36% and TTI Outliers% No. of deviations beyond ± 2SD for HBsAg, HCV, HIV were 14.43%, 12.59% and17.73% respectively. Present study has helped to understand the flaws and problems faced by a tertiary care blood center in sustaining quality. It also actively captured and analysed multiple cross sections of non-conformances.
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A 40-year-old male patient presented to the emergency department with complaints of anasarca, mild dyspnea, orthopnea, vomiting, and decreased urine output. A provisional diagnosis of chronic kidney disease was made and planned for hemodialysis. In view of severe anemia, 1 packed red blood cell (PRBC) was requested and after pretransfusion testing one unit of buffy coat-poor, nonleucofiltered, coombs cross-match compatible, fresh (<7-days old) saline-adenine-glucose-mannitol PRBC unit was issued. After transfusion of around 20 ml of red cells patient developed sudden onset of excruciating pain in the lower back and hip joints, tachypnea, and breathlessness with oxygen saturation dropping to 82%. Vitals were normal and patient remained afebrile. After stopping transfusion, supplemental oxygen and opioid analgesic were given. Once the symptoms subsided, transfusion was completed. A complete work-up was done to rule out other adverse reactions. Thus, this patient experienced what is known as an acute pain transfusion reaction.
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Detection of clinically significant alloantibodies during pretransfusion testing is essential before any blood transfusion. Sometimes, clinically insignificant antibodies unrelated to blood group antigen may interfere with routine testing. Their interpretation is often made only after tedious immunohematology workup resulting in the exclusion of all possible clinically significant antibodies. We encountered such incidence which interfered with crossmatching. In our case, direct antiglobulin test was negative, indirect antiglobulin test and autocontrol were positive with pan-reactive antibody screening test, and group-specific units were incompatible. After meticulous workup, we could find that these antibodies were directed against the enhancement media, low-ionic strength solution in this case.
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Abstract Introduction Chronic suppurative otitis media is a common ailment in developing countries, and it generally presents with otorrhea and hearing loss. Different surgical procedures have been used to treat otitis media; among them is myringoplasty, which is a procedure that includes repair of the tympanic membrane. Platelet concentrates have been used widely in different types of wounds and are found to improve wound healing. Hence, the use of platelet-rich fibrin in myringoplasty will also improve the tympanic membrane healing. Objectives To assess the safety and efficacy of autologous platelet-rich fibrin on graft uptake in myringoplasty. Methods Eighty-six patients were observed during the study period of two years. Forty-three patients in the study group underwent myringoplasty aided with plateletrich fibrin, and 43 patients in the control group went through the same procedure but without the platelet-rich fibrin. The patients were observed for three months postoperatively by a blinded observer. Results A total of 4.7% of the patients in the study group had postoperative infection, compared with a rate of 19% in the control group (p = 0.039). The graft uptake success rate was found to be 97.7% in the study group as compared with 81% in control group (p = 0.012). The results were found to be statistically significant. Conclusion Being autologous in nature, and by comparing the groups, platelet-rich fibrin is safe for patients. The postoperative graft uptake rate is better in cases in which plateletrich fibrin was used. The postoperative infection rate was also lower in the same group. (AU)
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Humanos , Masculino , Femenino , Adulto , Fibrina Rica en Plaquetas , Miringoplastia , Otitis Media Supurativa/cirugía , Trasplante Autólogo , Membrana Timpánica/lesiones , Cicatrización de Heridas , Resultado del TratamientoRESUMEN
Introduction Chronic suppurative otitis media is a common ailment in developing countries, and it generally presents with otorrhea and hearing loss. Different surgical procedures have been used to treat otitis media; among them is myringoplasty, which is a procedure that includes repair of the tympanic membrane. Platelet concentrates have been used widely in different types of wounds and are found to improve wound healing. Hence, the use of platelet-rich fibrin in myringoplasty will also improve the tympanic membrane healing. Objectives To assess the safety and efficacy of autologous platelet-rich fibrin on graft uptake in myringoplasty. Methods Eighty-six patients were observed during the study period of two years. Forty-three patients in the study group underwent myringoplasty aided with platelet-rich fibrin, and 43 patients in the control group went through the same procedure but without the platelet-rich fibrin. The patients were observed for three months postoperatively by a blinded observer. Results A total of 4.7% of the patients in the study group had postoperative infection, compared with a rate of 19% in the control group ( p = 0.039). The graft uptake success rate was found to be 97.7% in the study group as compared with 81% in control group ( p = 0.012). The results were found to be statistically significant. Conclusion Being autologous in nature, and by comparing the groups, platelet-rich fibrin is safe for patients. The postoperative graft uptake rate is better in cases in which platelet-rich fibrin was used. The postoperative infection rate was also lower in the same group.
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Oestrogen controls Foxp3 expression in regulatory T cells (Treg cells) via a mechanism thought to involve oestrogen receptor alpha (ERα), but the molecular basis and functional impact of ERα signalling in Treg cells remain unclear. We report that ERα ligand oestradiol (E2) is significantly increased in human cervical cancer (CxCa) tissues and tumour-infiltrating Treg cells (CD4+CD25hiCD127low), whereas blocking ERα with the antagonist ICI 182,780 abolishes FOXP3 expression and impairs the function of CxCa infiltrating Treg cells. Using a novel approach of co-immunoprecipitation with antibodies to E2 for capture, we identified binding of E2:ERα complexes to FOXP3 protein in CxCa-derived Treg cells. Chromatin immunoprecipitation analyses of male blood Treg cells revealed ERα occupancy at the FOXP3 promoter and conserved non-coding DNA elements 2 and 3. Accordingly, computational analyses of the enriched regions uncovered eight putative oestrogen response elements predicted to form a loop that can activate the FOXP3 promoter. Together, these data suggest that E2-mediated ERα signalling is critical for the sustenance of FOXP3 expression and Treg cell function in human CxCa via direct interaction of ERα with FOXP3 promoter. Overall, our work gives a molecular insight into ERα signalling and highlights a fundamental role of E2 in controlling human Treg cell physiology.