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Background & objectives: With the ethical concern about the dose of CT scan and wide use of CT in protocol of suspected renal colic, more attention has been paid to low dose CT. The aim of the present study was to make a comparison of unenhanced low-dose spiral CT localization with unenhanced standard-dose spiral CT in patients with upper urinary tract calculi for minimally invasive percutaneous nephrolithotomy (MPCNL) treatment. Methods: Twenty eight patients with ureter and renal calculus, preparing to take MPCNL, underwent both abdominal low-dose CT (25 mAs) and standard-dose CT (100 mAs). Low-dose CT and standard-dose CT were independently evaluated for the characterization of renal/ureteral calculi, perirenal adjacent organs, blood vessels, indirect signs of renal or ureteral calculus (renal enlargement, pyeloureteral dilatation), and the indices of localization (percutaneous puncture angulation and depth) used in the MPCNL procedure. Results: In all 28 patients, low-dose CT was 100 per cent coincidence 100 per cent sensitive and 100 per cent specific for depicting the location of the renal and ureteral calculus, renal enlargement, pyeloureteral dilatation, adjacent organs, and the presumptive puncture point and a 96.3 per cent coincidence 96 per cent sensitivity and 93 per cent specificity for blood vessel signs within the renal sinus, and with an obvious lower radiation exposure for patients when compared to standard-dose CT (P<0.05). The indices of puncture depth, puncture angulation, and maximum calculus transverse diameter on the axial surface showed no significant difference between the two doses of CT scans, with a significant variation in calculus visualization slice numbers (P<0.05). Interpretation & conclusions: Our findings show that unenhanced low-dose CT achieves a sensitivity and accuracy similar to that of standard-dose CT in assessing the localization of renal ureteral calculus and adjacent organs conditions and identifying the maximum calculus transverse diameter on the axial surface, percutaneous puncture depth, and angulation in patients, with a significant lower radiation exposure, who are to be treated by MPCNL, and can be used as an alternative localization method.
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<p><b>OBJECTIVE</b>To analyze the characteristics of cases of maxillary complex injury, to sum up experiences and lessons in the clinical first aid process, to evaluate different treatment effects of maxillary complex fracture and investigate the reasons for the failure of the treatment process.</p><p><b>METHODS</b>152 cases with maxillary complex injury were analyzed retrospectively.</p><p><b>RESULTS</b>2 cases (1.32%) died during emergency treatment. The cure rate was 62.67% (94/ 150) in the 150 survival cases. The cure rate of closed fractures were better than open ones and surgical treatments than non-surgical ways (P < 0.05); the cure rate of surgical treatment in stage I was higher than II (P < 0.01).</p><p><b>CONCLUSION</b>For patients with complex injuries of maxillary, first aid failure is mainly due to bleeding or asphyxiation. Therapeutic efficacy is influenced by treatment time, surgical approach, type of treatment and so on. The key to success of treatment is dependent on the early firm internal fixation and the functional protection and restoration of injured organs or tissues.</p>
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Humans , Fracture Fixation, Internal , Retrospective StudiesABSTRACT
To investigate the correlation between activation of B lymphocytes and CD11a, CD54 expression in renal allograft recipients, the dynamic changes in CD19, CD11a and CD54 levels in lymphocytes at different time points were examined by using mAb-FACS-immunofluores-cence technique in 10 renal allograft recipients in stable course(stable group) and 10 with acute rejection(rejection group) after operation. The expression levels of CD19 and CD54 in lymphocytes were significant higher than those of the pre-operation levels in both stable group and rejection group on the 3rd day after kidney transplantation, and the CD19 expression level was significant higher before rejection in the rejection group than that in stable group at the same time points; The expression of CDlla increased from (31. 9 ?12. 4)% to (49. 5 ? 20. 2)% during rejection and decreased significantly after anti-rejection treatment. A negative correlation was found between CD54 and CD19 expression in the stable group(r=0. 7951, P
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Objectives To inspect the levels of peripheral blood leukocyte and lymphocyte functionassociated antigen-1(LFA-1)expression in renaI allograft recipients before and after renal transplantation.Methods Using monoclonal antibody-flow cytometer fluorescence technique,the expression of LFA-1 in lymphocytes of 33 patients with renal transplantation was detected at 1 day before operation and 3,6,9,15 days after operation by flow cytometric immunological technique,Results The level of LFA-1 expression after transplantation was significantly decreased and maintained at a low level.and ascended suddenly during the course of graft rejection.The level of LFA-1 expression in rejection was obviously higher than in non-rejection and after the eontrollring of rejection.Conclusions LFA-1 might Dlay an important role in graft rejection.Monitoring of the expression of LFA-1 is helpful for the diagnosis of the graft rejection.
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Objective: To investigate the mechanism of Chuanshentong injection (CJ) in treating benign prostatic hyperplasia (BPH). Methods: The expression of androgen receptor (AR), estrogen receptor (ER), progesterone receptor (PR) was examined with immunohistochemical technique in 49 cases of BPH. Among 49 cases, 18 served as control (group A), 21 failed in the treatment of CJ (group B) and 10 recurrent (group C) after CJ treatment. Results: As compared with Group A, the positive rate of ER expression (81 %vs 38.9 %, P
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Objective:To investigate the mechanism of Chuan Shen Tong Injection (CSTI) for benign prostatic hyperplasia (BPH).Methods:The distribution of epidermal growth factor (EGF) and epidermal growth factor receptor(EGFR) expression were detected with immunohistochemical technique in 49 samples of the excised prostate. Among them, 18 samples were from patients without intraglandular injection of CSTI (group A) as controls, 21 from those receiving injection but without effect (group B) and 10 from those receiving injection with effect but recur (group C).Results: The positive expression rates of interstitial EGF and EGFR in group B (81% and 71.4% respectively) increased as compared with group A (33.3% and 33.3% respectively.,P