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【Objective】 To explore the relationship between the storage time of leukodepleted red blood cells and transfusion adverse reactions by analyzing the occurrence of transfusion adverse reactions of patients after leukodepleted red blood cells transfusion from four hospitals. 【Methods】 By using the electronic medical record management system, the collection and transfusion dates of leukodepleted red blood cells from four hospitals in Enshi Prefecture from 2018 to 2022, as well as the information on transfusion adverse reactions, were retrieved. 【Results】 From 2018 to 2022, a total of 697 61 bags of leukodepleted red blood cells were transfused in four hospitals, resulting in 166 cases of transfusion adverse reactions, among which 93 were allergic reactions, 63 were non hemolytic febrile reactions, and 10 were others, with a total incidence rate of transfusion adverse reactions at 0.24%. The average storage time of leukodepleted red blood cells with and without transfusion adverse reactions was (20.25±6.31) and (19.88±5.50) days, respectively. With a storage time of 7 days as the threshold, the incidence of transfusion adverse reactions was the lowest for a storage time of 15~21 days. The incidence of transfusion adverse reactions of leukodepleted red blood cells in two groups (with storage days ≤21 days and >21 days) was not statistically significant(P>0.05). 【Conclusion】 Allergic reactions were the main type of transfusion adverse reaction caused by leukodepleted red blood cells, and the incidence of transfusion adverse reactions decreased and then increased with the prolongation of the storage time of leukodepleted red blood cells. There was no significant difference in the incidence of transfusion adverse reactions with leukodepleted red blood cells stored for ≤ 21 days and >21 days.
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Breast cancer is one of malignant tumors with the highest incidence rate at present. Early diagnosis and treatment of breast cancer have great significance on the prognosis of patients. Along with the progress and maturation of robotics, MR-guided biopsy robot tends to be an ideal solution for early diagnosis and treatment of breast cancer. The advances of research, development and application of MR-guided breast biopsy robots were reviewed in this article.
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BACKGROUND: Both MRI and transcranial Doppler can be used for ultra-early assessment of acute cerebral infarction (ACI), the former is considered as a reliable diagnostic means mainly for the morphological changes of ACI, however the latter is often used before obvious morphological changes appeared, but their combined diagnostic value is still uncertain. OBJECrIVE: To investigate the value of combined MRI and transcranial Doppler in ultra-early assessment of highly suspected ACI.DESIGN: Case analysis and double-blind design.SETTING: MRI Department of Daqing Oil-field General Hospital and Department of Clinical Epidemiology of West China School, and Medical-Economic Department of Public Health College, Sichuan University.PARTICIPANTS: From May 2000 to July 2001, totally 225 highly suspected ACI patients with stoke-like onset, 121 males and 104 females,aged of 33-86 years old with the means of (62±12), within 12 hours after onset, informed of the experiment, were selected from Daqing Oil-field General Hospital.METHODS: All cases subjected to transcranial Dopller examination and following MRI examination with interval of no more than 1 hour, then received follow-up MRI examination at 15 days later (as golden diagnostic standards for CI). MRI was performed to detect the position, morphology,size and signal of pathological changes. Transcranial Doppler was used to determine the blood flow velocity, peak value of systolic and diastolic stage, frequency spectrum and sound spectrum of blood flow of bilateral cerebral anterior, middle and posterior arteries, internal carotid artery and basal vertebral artery.MAIN OUTCOME MEASURES: The sensitivity, specificity and accuracy in the diagnosis of ACI with MRI, transcranial Doppler and the combination of MRI and transcranial Doppler.RESULTS: Totally 225 cases were selected, and 5 excluded for not accordant to the inclusion standards, finally 220 statistical analyzed. The diagnostic sensitivity of MRI was 79.3%,. specificity of 98.4% and accuracy of 90.5%, comparing to corresponding 80.4%, 81.3% and 80.9% of transcranial Doppler, and 96.7%, 80.5%, 87.3% of the combination of MRI and transcranial Doppler.CONCLUSION: The combination of MRI and transcranial Doppler can be used to make rapid and accurate assessment of ACI due to higher sensitivity and specificity.
