ABSTRACT
【Objective】 To compare the clinical safety and effectiveness of super-mini-percutaneous nephroscope (SMP) combined with flexible ureteroscopic lithotripsy (FURL) in oblique supine lithotomy position and FURL alone in the treatment of 2.0-3.0 cm renal calculi. 【Methods】 Clinical data of 55 patients treated during Jan.2018 and May 2021 were retrospectively analyzed, including 47 cases complicated renal calculi, and 14 cases of lower calyceal calculi with infundibulopelvic angle ≤30°. SMP combined with FURL was performed in 23 cases (combined group), and FURL alone was performed in 32 cases (FURL group). The operation time, hemoglobin reduction, postoperative hospital stay, hospitalization expenses, stone-clearance rate and complications were compared. 【Results】 All operations were successful. Compared with the FRUL group, the combined group had significantly more hemoglobin reduction [(16.30±10.17) g/L vs. (6.94±6.61) g/L], longer postoperative hospital stay [(5.35±1.61) d vs. (3.19±1.26) d], and higher hospitalization expenses [(22 481±2 234) yuan vs. (18 209±2 584) yuan] (P0.05]. One month after surgery, CT results showed that the combined group had higher stone-clearance rate (91.30% vs. 65.63%, P=0.027). There was no difference in the complication rate (21.74% vs. 21.88%, P>0.05). One case (4.35%) in the combined group and 5 cases (15.63%) in the FURL group received retreatment (P>0.05). 【Conclusion】 SMP combined with FURL in oblique supine lithotomy position is safe and effective in the treatment of 2.0-3.0 cm renal calculi, with high stone-clearance rate and low complication rate.
ABSTRACT
BACKGROUND:Culture supernatant containing myocardiocyte has been demonstrated to induce differentiation of bone marrow-derived mesenchymal stem cel s into myocardiocyte-like cel s. This may associate with some or several cytokines in the culture supernatant. OBJECTIVE:To explore if the supernatant of myocardiocyte induces bone marrow-derived mesenchymal stem cel s to differentiate into myocardiocyte-like cel s is associated with the different cytokine content in the supernatant of myocardiocyte. METHODS:Bone marrow-derived mesenchymal stem cel s were isolated and cultured in vitro by the whole bone marrow adherent culture. Cardiocytes were isolated and cultured by enzyme digestion. Bone marrow-derived mesenchymal stem cel s (1×108/L) and cardiocytes (1×105/L) were cultured for 72 hours and the supernatant was col ected. Hepatocyte growth factor, insulin-like growth factor 1, platelet-derived growth factor, stem cel factor, fibroblast growth factor and vascular endothelial growth factor levels in culture supernatant of bone marrow-derived mesenchymal stem cel s and cardiocytes were detected by enzyme-linked immunosorbent assay. RESULTS AND CONCLUSION:The content of insulin-like growth factor 1, platelet-derived growth factor and fibroblast growth factor in the supernatant of cardiocytes was significantly higher in cardiocytes group compared with bone marrow-derived mesenchymal stem cel s group (P<0.01). Results indicated that insulin-like growth factor 1, platelet-derived growth factor and fibroblast growth factor in the supernatant of cardiocytes may have capability to induce bone marrow-derived mesenchymal stem cel s to differentiate into myocardiocyte-like cel s, and insulin-like growth factor 1 may serve as the main cytokine.