Objective:To explore the assessment value of ultrasound images for the curative effect of placed umbrella-shaped filters in treating deep vein thrombosis in the lower limbs.Methods:A retrospective analysis was conducted on the clinical data of 85 patients with deep vein thrombosis of the lower extremities who admitted to Peking University Third Hospital Yanqing Hospital from October 2018 to October 2022.Based on the treatment effect and the improvement of clinical symptoms,the patients were divided into a cure group(38 cases),a significant effect group(27 cases)and an effective group(20 cases).All patients underwent the placement of an umbrella-shape filter and popliteal vein puncture on the affected side,and the urokinase was pumped into the body after a thrombolytic catheter was connected to micro pump.All patients underwent contrast-enhanced ultrasound examination,and the diluted ultrasound contrast agent was injected through a thrombolytic catheter on the 1st,3rd and 5th day after surgery,so as to analyze the perfusion situation of ultrasound contrast.Time intensity curve(TIC),time to peak(TTP),density peak intensity(DPI)and ascending branch slope(C)of the curve were obtained by using ultrasound contrast quantitative analysis software.And then,the quantitative parameters of patients among the 1st,3rd and 5th day after surgery were compared.Results:Compared with these before treatment,the reduction of the intima of the wall(82 cases),the better vascular compression(58 cases)and the clear echo in the lumen(61 cases)were significantly improved after treatment,and the differences were statistically significant(x2=52.407,61.917,74.518,P<0.05),respectively.The total effective rate was 100%.The TTP,DPI and C of the cure group,the significant effect group and the effective group were respectively(14.02±5.41)s,(-10.77±3.22)s and(4.91±1.33)dB/s on the 5th day after surgery.The TTP,DPI and C of the significant effect group[(17.95±7.41)s,(-13.87±4.01)s and(4.11±1.20)dB/s]on the 5th d after surgery were significantly different from those on the 1st day after surgery(cure group:t=11.615,-22.122,-16.112,P＜0.001,significant effect group:t=8.820,-13.073,-10.804,P＜0.001,effective group:t=6.791,-7.725,-6.633,P＜0.05),respectively.The DPI and C of the three groups on the 3rd day after surgery were significantly higher than those on the 1st d after surgery,while the TTP was significantly lower than that on the 1st day after surgery,and the differences were statistically significant(cure group:t=-18.857,-12.387,-7.254,-7.435,P＜0.001,effective group:t=-5.076,-6.919,P＜0.05),respectively.The DPI and C on the 5th d after surgery in the cure group and the significant effect group were significantly higher than those in the effective group(tDPI=12.219,7.457,tC=4.826,2.530,P＜0.05),respectively.Conclusion:The deep vein thrombosis of the lower extremities can choose the method of thrombolysis treatment after the umbrella-shape filter is placed,which can effectively intercept the thrombosis and can be indwelled in the vein in a long time,and which can also observe perfusion during inferior vena cava contrast,and which can also intuitive appear the recanalization of the veins after umbrella-shape filter is placed in patients with deep vein thrombosis of the lower extremities after the treatment of catheter thrombolysis.

Platelet-derived growth factor receptor beta (PDGFRB) rearrangements play an important role in the pathogenesis of eosinophilia-associated myeloid/lymphoid neoplasms. Up to now, more than 70 PDGFRB fusions have been identified. Here, a novel PDGFRB fusion gene CSNK2A1-PDGFRB has been identified in myeloproliferative neoplasm (MPN) with eosinophilia by RNA-sequencing, which has been verified by reverse transcription polymerase chain reaction and Sanger sequencing. The new PDGFRB fusion partner gene CSNK2A1 encoded one of the two catalytic subunit of casein kinase II (CK2). To our knowledge, this is the first report on the involvement of CSNK2A1 in fusion genes, especially fusion with another kinase PDGFRB in MPN. In addition, the CSNK2A1-PDGFRB fusion retained the entire kinase domain of PDGFRB and response to imatinib at low concentration. The patient with CSNK2A1-PDGFRB was sensitive to imatinib treatment and acquired sustained complete remission.

Platelet-derived growth factor receptor beta (PDGFRB) rearrangements play an important role in the pathogenesis of eosinophilia-associated myeloid/lymphoid neoplasms. Up to now, more than 70 PDGFRB fusions have been identified. Here, a novel PDGFRB fusion gene CSNK2A1-PDGFRB has been identified in myeloproliferative neoplasm (MPN) with eosinophilia by RNA-sequencing, which has been verified by reverse transcription polymerase chain reaction and Sanger sequencing. The new PDGFRB fusion partner gene CSNK2A1 encoded one of the two catalytic subunit of casein kinase II (CK2). To our knowledge, this is the first report on the involvement of CSNK2A1 in fusion genes, especially fusion with another kinase PDGFRB in MPN. In addition, the CSNK2A1-PDGFRB fusion retained the entire kinase domain of PDGFRB and response to imatinib at low concentration. The patient with CSNK2A1-PDGFRB was sensitive to imatinib treatment and acquired sustained complete remission.

Objective To explore the association between lipid profiles and left ventricular hypertrophy in a Chinese general population. Methods We conducted a retrospective observational study to investigate the relationship between lipid markers [including triglycerides, total cholesterol, low-density lipoprotein cholesterol, high-density lipoprotein (HDL) cholesterol, non-HDL-cholesterol, apolipoprotein A-I, apolipoprotein B, lipoprotein[a], and composite lipid profiles] and left ventricular hypertrophy. A total of 309,400 participants of two populations (one from Beijing and another from nationwide) who underwent physical examinations at different health management centers between 2009 and 2018 in China were included in the cross-sectional study. 7,475 participants who had multiple physical examinations and initially did not have left ventricular hypertrophy constituted a longitudinal cohort to analyze the association between lipid markers and the new-onset of left ventricular hypertrophy. Left ventricular hypertrophy was measured by echocardiography and defined as an end-diastolic thickness of the interventricular septum or left ventricle posterior wall > 11 mm. The Logistic regression model was used in the cross-sectional study. Cox model and Cox model with restricted cubic splines were used in the longitudinal cohort. Results In the cross-sectional study, for participants in the highest tertile of each lipid marker compared to the respective lowest, triglycerides [odds ratio (OR): 1.250, 95％CI: 1.060 to 1.474], HDL-cholesterol (OR: 0.780, 95％CI: 0.662 to 0.918), and lipoprotein(a) (OR: 1.311, 95％CI: 1.115 to 1.541) had an association with left ventricular hypertrophy. In the longitudinal cohort, for participants in the highest tertile of each lipid marker at the baseline compared to the respective lowest, triglycerides [hazard ratio (HR): 3.277, 95％CI: 1.720 to 6.244], HDL-cholesterol (HR: 0.516, 95％CI: 0.283 to 0.940), non-HDL-cholesterol (HR: 2.309, 95％CI: 1.296 to 4.112), apolipoprotein B (HR: 2.244, 95％CI: 1.251 to 4.032) showed an association with new-onset left ventricular hypertrophy. In the Cox model with forward stepwise selection, triglycerides were the only lipid markers entered into the final model. Conclusion Lipids levels, especially triglycerides, are associated with left ventricular hypertrophy. Controlling triglycerides level potentiate to be a strategy in harnessing cardiac remodeling but deserve to be further investigated.