Objective: To evaluate the suitability of the existing hemolysis rate standards for locally processed red blood cell components by retrospectively analyzing 5-year hemolysis rate data at the end of storage. Methods: A total of 720 blood samples of three types of red blood cell components from our blood station from January 2019 to December 2023 were collected. Parameters included hemoglobin concentration (Hb), hematocrit (Hct), and free hemoglobin concentration (fHb). Hemolysis rate were taken as the control standard of 0.8% in accordance with the national standard. The hemolysis rates were compared against the national standard threshold of 0.8% (GB18469-2012), and annual trends of the detection parameters were observed. Results: The hemolysis rates (x-+s,%) of leukocyte-depleted whole blood at the end of storage were (0.038±0.023 8) in 2019, (0.049±0.039 5) in 2020, (0.043±0.040 7) in 2021, (0.049±0.030 7) in 2022, and (0.058±0.054 8) in 2023, respectively; The hemolysis rates (x-+s" />,%) of leukocyte-depleted suspended red blood cells at the end of storage were (0.093±0.050 2) in 2019, (0.086±0.049 5) in 2020, (0.123±0.072 3) in 2021, (0.122±0.052 1) in 2022, and (0.106±0.058 6) in 2023, respectively; The hemolysis rates (x-+s,%) of washed red blood cells at the end of storage were (0.127±0.038 2) in 2019, (0.150±0.066 5) in 2020, (0.121±0.052 2) in 2021, (0.124±0.038 9) in 2022, and (0.128±0.044 3) in 2023, respectively. Conclusion: Hemolysis rates at the end of blood storage of three red blood cell components were significantly lower than the limits specified in Quality Requirements for Whole Blood and Components (GB18469-2012), as well as standards from the EU, AABB and the United States. The results demonstrate excellent product quality control. A regional internal control standard of <0.2% is proposed for hemolysis rates at the end of storage.

Objective To excavate the TCM syndrome of chronic heart failure from 1973 to 2023 and summarize the evolution of the characteristics of medical syndrome.Methods The relevant literature on clinical research on TCM syndromes in three databases including CNKI from January 1,1973 to October 1,2023 was searched,and SPSS 21.0 and Rstudio software were used to conduct descriptive statistical analysis,association rule analysis,and cluster analysis on the distribution characteristics of TCM syndrome types and pattern elements in the final literature.Results A total of 218 literatures,including 41604 patients,covering 29 provinces,municipalities and autonomous regions across the country,were included,of which 179 articles explicitly reported the TCM composite syndrome type,including 31123 patients.A total of 71996 pattern elements were extracted,and the common elements included qi deficiency,blood stasis,phlegm turbidity,etc.The main location of the disease include heart,liver,spleen,etc.The characteristics of TCM syndromes in different regions and different periods show certain evolution rules,from 1973 to 2023,the proportion of qi deficiency and blood stasis pattern and phlegm and stasis mutual obstruction pattern showed an upward trend.The proportion of simple false evidence increased from 1994 to 2003 compared with 1973 to 1993,but decreased from 2004 to 2023,and was lower than that from 1973 to 1993.The proportion of yang deficiency water pan syndrome showed a downward trend;The evolution of syndromes in different regions has changed from deficiency to deficiency and real mixed syndrome,for example,North China,which has the highest proportion,has changed from cardiopulmonary qi deficiency to qi deficiency and blood stasis.In recent years,the proportion of heart,liver and spleen in the chronic heart failure syndrome pattern showed an overall upward trend,the proportion of the syndrome elements of the deficiency syndrome showed a downward trend,and the proportion of the syndrome elements of the standard disease syndrome showed an upward trend.Conclusion The characteristics of chronic heart failure syndrome are always the evidence of deficiency and reality,with"deficiency and qi retention"as the core pathogenesis,and the main disease sites are the heart,liver,and spleen,and the pattern elements composed of qi deficiency,phlegm turbidity,blood stasis,and water drinking gradually occupy a dominant position,and the TCM pattern type of chronic heart failure may show a trend of"deficiency of phlegm and stasis"in the future.

Objective To excavate the TCM syndrome of chronic heart failure from 1973 to 2023 and summarize the evolution of the characteristics of medical syndrome.Methods The relevant literature on clinical research on TCM syndromes in three databases including CNKI from January 1,1973 to October 1,2023 was searched,and SPSS 21.0 and Rstudio software were used to conduct descriptive statistical analysis,association rule analysis,and cluster analysis on the distribution characteristics of TCM syndrome types and pattern elements in the final literature.Results A total of 218 literatures,including 41604 patients,covering 29 provinces,municipalities and autonomous regions across the country,were included,of which 179 articles explicitly reported the TCM composite syndrome type,including 31123 patients.A total of 71996 pattern elements were extracted,and the common elements included qi deficiency,blood stasis,phlegm turbidity,etc.The main location of the disease include heart,liver,spleen,etc.The characteristics of TCM syndromes in different regions and different periods show certain evolution rules,from 1973 to 2023,the proportion of qi deficiency and blood stasis pattern and phlegm and stasis mutual obstruction pattern showed an upward trend.The proportion of simple false evidence increased from 1994 to 2003 compared with 1973 to 1993,but decreased from 2004 to 2023,and was lower than that from 1973 to 1993.The proportion of yang deficiency water pan syndrome showed a downward trend;The evolution of syndromes in different regions has changed from deficiency to deficiency and real mixed syndrome,for example,North China,which has the highest proportion,has changed from cardiopulmonary qi deficiency to qi deficiency and blood stasis.In recent years,the proportion of heart,liver and spleen in the chronic heart failure syndrome pattern showed an overall upward trend,the proportion of the syndrome elements of the deficiency syndrome showed a downward trend,and the proportion of the syndrome elements of the standard disease syndrome showed an upward trend.Conclusion The characteristics of chronic heart failure syndrome are always the evidence of deficiency and reality,with"deficiency and qi retention"as the core pathogenesis,and the main disease sites are the heart,liver,and spleen,and the pattern elements composed of qi deficiency,phlegm turbidity,blood stasis,and water drinking gradually occupy a dominant position,and the TCM pattern type of chronic heart failure may show a trend of"deficiency of phlegm and stasis"in the future.

Objective To study the local irritation of repeated intrathecal injection of Ziconotide Acetate,and to provide reference for irritancy evaluation ofintrathecal injection.Methods Sixteen New Zealand rabbits were assigned into two groupsat random:Control group and Ziconotide Acetate group,eight animals each group.Totally 50 μL saline or Ziconotide Acetate (100 μg/mL) were administrated by repeated lumbar intrathecal injection once daily for 7 d.Animal behavior was observed every day,and four animals in each group were sacrificed 2 d later after the last injection,the lumbar spinal cord was removed for histopathological examination and irritancy evaluation.The remaining animals were sacrificed for initancy evaluation 14 d later after the last injection.Results Only one animal died after anesthesia on day three in saline group,while no obvious adverse reactions were observed in other rabbits during the entire study,and no intrathecal irritant reactions of histopathological examination were found in both groups.The reversible minor mechanical damage was observed at the injection point,2 d after the last administration.Conclusion For 7 d repeated lumbar intrathecal injection in rabbits,no intrathecal irritant reactions observed in Ziconotide group,and the New Zealand rabbit could be used as a local irritation evaluation model.

Objective To evaluate the characteristics and efficacy of microscope-assisted bilateral decompression via unilateral approach for the treatment of lumbar stenosis. Methods From June 2007 to June 2010, Sixty case lumbar stenosis with bilateral decompression were treated via unilateral approach under microscopy. Patients were followed up from 6 to 24 months, average (12 ± 4.7) months. Results The pain level of each patient was assessed both before and after the opeartion, using a visual analogue scale (VAS). Intermittent claudication was completely relieved in 57 out of 60 cases, moderately relieved in 3 cases. VAS score decreased from pre-operational 9.08 ± 0.76 to post-operational 2.33 ± 1.43, and there was significantly difference between them. There was no recurrent case during the whole follow-up. Conclusion Bilateral decompression via unilateral approach under microscope is proved to be an effective and safe procedure for the treatment of lumbar stenosis, and have the advantages of minimal invasion, less pain, quick recovery, better effect, little influence on the spinal stability.