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Objective:To investigate the relationship between normal plasma fibrinogen(FIB)levels and disease duration in elderly patients with type 2 diabetes mellitus(T2DM).Methods:Clinical data and biochemical test results of 1 116 elderly subjects with T2DM admitted to the Department of Endocrinology of Shanghai Tianyou Hospital from January 2016 to October 2019 were retrospectively collected and analyzed.Subjects were classified into four groups based on the duration of DM: the Q1 group(n=276, < 2.0 years), the Q2 group(n=278, 2.0-7.9 years), the Q3 group(n=280, 8.0-13.9 years)and the Q4 group(n=282, ≥ 14.0 years). The correlation between FIB and the duration of DM was analyzed.Results:With the prolongation of DM duration, FIB levels increased significantly( P<0.05). Pearson correlation analysis showed that the duration of DM was positively correlated with FIB, age and serum creatinine( P<0.01). Multiple stepwise regression analysis showed that the duration of DM was an independent factor for FIB( β=0.104, P<0.01). Logistic multiple regression analysis showed that after adjusting for sex, age, body mass index, systolic pressure, diastolic pressure, total cholesterol, triglycerides, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, serum creatinine, alanine aminotransferase, fasting plasma glucose, glycosylated hemoglobin, smoking and drinking, the risk of hyperfibrinogenemia was 2.436 and 2.104 times higher, respectively, in Group Q4 and Group Q3 than in Group Q1(95% CI: 1.317-4.507, P<0.01; 95% CI: 1.144-3.871, P<0.05). With the third-quartile FIB(3.70 g/L)as the cut-off value, the optimal cut-off point of the DM course was 9.5 years as calculated by receiver operating characteristic(ROC)curve analysis of DM duration and hyperfibrinogenemia. Conclusions:The FIB level is positively correlated with DM duration in elderly patients with T2DM.
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Objeetive To investigate the changes of kidney cortex hemoperfusion before and after extracorporeal shock wave lithotripsy (ESWL) with contrast-enhanced ultrasonography (CEUS) and time-intensity curve.Methods Thirty patients of renal calculi were treated with ESWL and examined with CEUS before and after ESWL.Renal cortex blood perfusion parameters of the lithotriptic areas,including the contrast agent arrival time (AT) ,time to peak (TTP) .peak intensity (PI) and velocity parameters (β) were quantitatively measured with ACQ software.Results The value of AT,TTP and β were not significantly different before and after ESWL (P＞0.05) .PI value after ESWL was lower than that before ESWL (P＜0.05) . Conclusion CEUS can quantitatively evaluate the changes of kidney cortex hemoperfusion after ESWL,and reflect the minor renal damage resulted from ESWL.CEUS can be used as a new method of observing and evaluating the renal damage caused by ESWL.