Autologous ozonized blood transfusion(AOBT) is a therapy of re-transfusion of 100-200 mL of autologous blood after shaking and agitation with appropriate amount of oxygen-ozone in vitro. The oxidation of blood through the strong oxidation of ozone can enhance the non-specific immune response of the body, regulate the internal environment and promote health. This therapy has been increasingly applied in clinical practice, while no unified standard for the operation process in terms of ozone concentration, treatment frequency and treatment course had been established. This operation process of AOBT is primarily explored in order to standardize the operation process and ensure its safety and efficacy.

Objective:To explore clinical value of nucleic acid detection for hepatitis B virus (HBV) screening in hospitalized patients.Methods:This cross-sectional study collected and analyzed plasma samples from patients admitted to 10 domestic medical institutions from July 2021 to December 2021. Serological immunoassay and nucleic acid screening were used to simultaneously detect hepatitis B markers such as hepatitis B surface antigen (HBsAg), hepatitis B surface antibody (HBsAb), hepatitis B e Antigen (HBeAg), hepatitis B e antibody (HBeAb), hepatitis B core antibody (HBcAb),and HBV DNA. Statistical analysis was performed on the serology, nucleic acid test results and clinical information of the patients.Results:Of the 8 655 collected samples, HBsAg was positive in 216 (2.50%) samples,HBV DNA was positive in 238 (2.75%) samples ( P>0.05); 210 (2.43%) samples were positive for both HBsAg and HBV DNA, 28 (0.32%) were HBsAg negative and HBV DNA positive, 6 cases (0.07%) were HBsAg positive and HBV DNA negative. Conclusion:These results indicate that the HBV DNA testing is equally effective as hepatitis B virus serological detection for hepatitis B virus screening in hospitalized patients.

Objective:This multi-centre study was conducted to assess the efficacy of various preoperative/pre-transfusion screening methods for blood transmitted disease.Methods:From July 2021 to December 2021, plasma samples of patients admitted to 10 hospitals were collected for screening preoperative/pre-transfusion blood transmitted disease. Nucleic acid detection technology was used to detect hepatitis B virus (HBV) DNA, hepatitis C virus (HCV) RNA and human immunodeficiency virus (HIV)(1+2) RNA, and the results were compared with the immuno-serological methods. χ 2 test and Kappa test were used to analyze the efficacy of these two methods. Results:A total of 8 655 valid specimens were collected from 10 hospitals. There was a statistically significant difference in the positive detection rate of HCV between the two methods ( P<0.001). There was no significant difference in the positive detection rate of HBV and HIV assessed by the two methods ( P>0.05), but the number of positive cases detected by HBV DNA and HIV RNA (218 and 4 cases) was significantly higher than the corresponding serological results (216 and 2 cases). At the same time, there were HBV, HCV and HIV immuno-serological omissions by the immuno-serological methods, among which 28 cases were HBsAg negative and HBV DNA positive, 2 cases were HCV antibody negative and HCV RNA positive, and 2 cases were HIV antigen/antibody negative and HIV RNA positive. In addition, in the 66 samples with inconsistent results from the two detection methods, 83.3% (55/66), 68.2% (45/66), 63.6% (42/66) and 62.1% (41/66) of patients aged was>45 years, tumor, surgery and male, respectively. Conclusions:Compared with immuno-serological tests, nucleic acid tests have the advantage in terms of sensitivity on detecting HBV, HCV and HIV infection and could reduce missed detection. The risk of transmission can be reduced by adding HBV, HCV, and HIV nucleic acid tests to preoperative/pre-transfusion immuno-serological tests screening for patients over 45 years of age and tumor patients.

Objective:To compare the cost-effectiveness of hospitalized Chinese patients undergoing nucleic acid screening strategies for hepatitis B and hepatitis C, immunological screening strategy, and no screening strategy under different willingness to pay (WTP). The results might aid to decision-making for the optimal strategy.Methods:In this study, nucleic acid screening, immunological screening and no screening were used as screening strategies, and China′s GDP in 2021 (80 976 yuan) was used as the threshold of WTP to construct a Markov model. After introducing parameters related to the diagnosis and treatment of hepatitis B and C in inpatients, a cohort population of 100 000 inpatients was simulated by TreeAge Pro 2021 software, the total cost, total health effects, incremental cost-effectiveness ratio and average cost-effectiveness ratio of different screening strategies were calculated, and cost-effectiveness analysis was conducted. Univariate and probabilistic sensitivity analysis were used to assess the impact of parameter uncertainty on the final results.Results:Compared with the non-screening strategy, the incremental total cost of the hepatitis B immunological screening strategy for cohort patients was 11 049 536 yuan, and the incremental cost-effectiveness ratio was 24 762 yuan/quality-adjusted life years (QALY), while the total incremental cost of nucleic acid screening was 19 208 059 yuan, and the incremental cost-effectiveness ratio was 29 873 yuan/QALY; the incremental cost-effectiveness ratio of nucleic acid screening and immunological screening was 45 834 yuan/QALY. Compared with the non-screening strategy, the incremental cost-effectiveness ratio of hepatitis C immunological screening strategy was 5 731 yuan/QALY, the incremental cost-effectiveness ratio of nucleic acid screening strategy was 8 722 yuan/QALY, the incremental cost-effectiveness ratio of nucleic acid screening and immunological screening was 45 591 yuan/QALY. The results of probabilistic sensitivity analysis showed that when the cost of nucleic acid testing exceeded 214.53 yuan, it was not cost-effective to perform hepatitis B nucleic acid screening under the WTP as 1 fold GDP. When the cost of nucleic acid testing exceeded 132.18 yuan, it was not cost-effective to conduct hepatitis C screening under the WTP as 1 fold GDP.Conclusions:Nucleic acid screening strategy can achieve more cost-effectiveness and is worthy of vigorous promotion. Compared with no screening, both the nucleic acid and immunological screening strategies are cost-effective, and hepatitis nucleic acid screening is the optimal strategy for hospitalized patients.

Platelets concentrates play a vital role in the maintenance of normal hemostatic activity and the integrity of blood vessel wall. Accordingly, for patients with low platelet counts (thrombocytopenia) or dysfunction, platelet transfusion can be of significant value in preventing and treating hemorrhage. In recent years, various studies have proved that platelets also play a very important role on anti-inflammation and improvement of cell and tissue growth and repair in regeneration processes. Platelets with the natural source of various growth factors can help in wound healing and proliferation. At present, autologous platelet-rich plasma and platelet gel are also widely used in the treatment of clinical patients. Therefore, the non-transfusion therapy of allogeneic platelet concentrate and alternatives such as platelet rich plasma, platelet gel and dry platelet (freeze-dried platelet) should be applied on patients in the near future.

OBJECTIVE: To explore serological and molecular characteristics of a family trio with weak B phenotype. METHODS: ABO blood type of the family was determined with a serological method. Genotypes of the ABO gene were determined with PCR-sequence specific primer (PCR-SSP). Sequences of exons 6 and 7 of the ABO gene were analyzed by PCR sequence-based testing. RESULTS: Serologically, the proband and her father were determined as B subtype (Bw), while her mother was of O group. The genotypes of the proband and her father were Bw12/O, while her mother was O01/O01. Sequencing of exons 6 and 7 of the ABO gene confirmed that the proband and her father were Bw12/O01. Compared with B101/O01, the Bw12 subtype carried a missense mutation (278C>T) in exon 6 of the ABO gene. CONCLUSION The 278C>T mutation probably underlies the Bw phenotype and can be transmitted stably.
ABO Blood-Group System ; genetics ; Alleles ; Base Sequence ; Exons ; Female ; Genotype ; Humans ; Male ; Mutation, Missense ; Phenotype ; Sequence Analysis, DNA

Objective To investigate the blood transfusion paths in elderly patients in order to ensure the blood transfusion safety in the elderly.Methods Clinical data of elderly patients (aged 60 and over) receiving blood transfusion were selected from January 2008 to December 2013.Data of blood transfusion in different clinical department were analyzed.Results From 2008 to 2013,the number of elderly patients receiving blood transfusion and transfusion volume showed the rising trends.Patients in Department of Cardiothoracic Surgery had the most blood transfusion volume among all surgical departments (9.3U/person),and plasma transfusion accounted for the most with plasma and red blood cells in a 3 ∶ 1 ratio.Patients in Department of Internal Medicine had the most blood transfusion volume among all non surgical departments (15.9U/person),and platelets transfusion accounted for the most with platelets and red blood cells in a 3 ∶ 1 ratio.The oldest patients on average receiving blood transfusion in the top 10 was from Department of Emergency (aged 77 years),and the most common cause was gastrointestinal hemorrhage.The youngest patients receiving blood transfusion in the top 10 was from Department of Cardiothoracic Surgery and Department of Gynecology (aged 69 years),and the most common cause was huge pleural mass and ovarian cancer.Conclusions Blood transfusion for elderly patients should be restrict the indications for transfusion strictly,choose the reasonable transfusion time,blood components and volume.Physiological and functional changes and clinical features of elderly patients should be paid attention to at the same time in order to reduce unnecessary transfusions,particularly the dependence on plasma transfusion and unnecessary collocated blood transfusion,to avoid the overload and adverse transfusion reactions.

To improve higher training quality and capacity of orthopedic postgraduates,early contact education,problem-base learning combined with co-supervisor with radiologists were engaged for orthopedic postgraduates since 2008.Effect of the practice was assessed by postgraduates one year later.Investigation revealed that practice aroused learning enthusiasm and initiative,promoted comprehensive understanding of orthopedic knowledge,set up social responsibility,and constructed innovative thinking.

Objective To analyze the safety of blood transfusion in hospitalized senile patients,and to prevent or reduce adverse transfusion reactions. Methods The blood transfusion information of patients over the age of 60 years in our hospital from January 2009 to December 2011 were retrospective analyzed. The data of pre-storage type of autologous blood transfusion for elective surgery were also discussed. Results Among 3549 cases of elderly patients,there were totally 23877 times of allogeneic transfusion and 84 cases with blood transfusion adverse reactions of heating or allergic reactions.The adverse reaction rates occured most in the infusion of fresh frozen plasma (0.55％).There was no hemolytic reaction,and transfusion adverse reactions occarred during stored blood autotransfusion. Conclusions Medical institutions should set the scientific and rational principle of blood use and select the appropriate blood components to reduce transfusion adverse events in the elderly patients. The autologous blood transfusion in the elderly patients should be actively pursued.

Objective To investigate the testing capabilities of clinical transfusion laboratories in medical institutions in Beijing for the regulatory authorities to formulate administrative policies in this regard.Methods Experts assigned by Beijing Clinical Transfusion Quality Control Center made on-site inspections at the transfusion laboratories in medical institutions using quality control products.They recorded the complete testing process of the operators as well as the instruments,detection reagents in use and the testing results,with statistics and analysis made to the data so collected.Results The pass rate of these on-site inspections was lower than that of the external quality assessment.Some laboratories failed to complete the testing of the quality control products in time and the actual operations in some laboratories were inconsistent to the guidelines.55.9％ of level Ⅰ hospitals and 25.6％ of level Ⅱ hospitals were found with insufficient and inadequate instruments and process layout to meet the needs of clinical blood transfusion.Some of the technicians were found without sufficient trainings in their professional knowledge and basic skills,resulting in their poor competence against emergency cases and weakness in independent problem solving.In addition,the records of detection process and results were found to be substandard.Conclusions Transfusion laboratories in Beijing need to improve their testing capabilities in general.