Objective To study the changes of corneal sensitivity in diabetic and nondiabetic subjects after phacoemulsification. Methods This trial involved 42 diabetic subjects(42eyes)and 46 nondiabetic subjects(46 eyes)with cataract.All eyes were underwent phacoemulsification.Corneal sensitivities were tested before surgery and 1 day,1 week,1 month,3 month,6 month after surgery.Results The corneal sensitivity of diabetic subjects was greatly reduced at 1 day,1 week,1 month,3 month after surgery(P＜0.05),and returned to the preoperative values at 6 month(P＞0.05).The corneal sensitivity of nondiabetic subjects was reduced at 1 day,1 week,1 month af- ter surgery(P＜0.05),and returned to the preoperative values at 3 month(P＞0.05).The corneal sensitivity of diabetic subjects was lower than nondiabetic subjects before surgery(P＜0.05).The reduced range of corneal sensitivity in diabetic subjects was greater than that of nondiabetic subjects(P＜0.05).Conclusions The corneal sensitivity is decreased and the recovery is postponed after poacoemul- sification in diabetic subjects.

Objective To investigate the diagnostic value of a double action MR contrast agent——gadobenate dimeglumine (Gd-BOPTA) for focal liver lesion and biliary system disease.Methods Articles about Gd-BOPTA in CNKI and PubMed for the past few years were searched and the value of Gd-BOPTA in the diagnosis of focal liver lesion and biliary system disease was summarized.Results For focal liver lesion,Gd-BOPTA not only can reveal blood supply of the lesion,but also reveal the hepatocellular functional status in the lesion.For biliary system,biliary excretion of Gd-BOPTA can be used to evaluate the anatomic structure of bile duct,function of gallbladder and biliary system disease.Conclusions Gd-BOPTA has an important value in the diagnosis of focal liver lesion and biliary system disease.Gd-BOPTA may have wider applications in the future.

Objective To discuss fluvastatin intervention on ventricular remodeling and plasma brain natri-uretic peptide( BNP) levels in dilated cardiomyopathy( DCM) .Methods 64 cases of DCM patients were selected and randomly divided into the intervention group and control group,each group in 32 cases.Both groups were treated with conventional drug therapy, including angiotensin-converting enzyme inhibitors,β-blockers, diuretics, etc.In conven-tional drug treatment intervention group based on the use of fluvastatin 40mg/d.Intervention in both groups before and 6 months after the intervention,plasma BNP levels were examined and ventricular remodeling indicators,analyzed and compared using Pearson Univariate correlation of each index.Results The total efficiency of the intervention group was higher than that of the control group(87.51%vs 65.63%,χ2 =4.730,P<0.05);6 months after the interven-tion groups,plasma BNP levels were significantly decreased left ventricular ejection fraction(LVEF),left ventricular end systolic diameter(LVESD),left ventricular end-diastolic diameter(LVEDD) and relative wall thickness(RWT) were significantly improvements.BNP levels and LVEF and RWT was negatively correlated( r=-0.45,-0.39,all P<0.05);Positively correlated with LVESD and LVEDD showed(r=0.35,0.44,all P<0.05),the difference was statistically significant.Conclusion Fluvastatin intervention can significantly reduce plasma BNP levels in DCM and improve ventricular remodeling.

Objective:To explore diagnostic value of dynamic electrocardiogram (DCG) combined esophageal electro‐physiological examination (EEE) for sick sinus syndrome (SSS) .Methods :A total of 74 cases suspecting SSS ,who presented 24h mean heart rate <55 beats/min in DCG ,were selected .After DCG examination ,all subjects received EEE . Diagnostic value of single and combined examinations wereexplored .Results:Compared withthe SSS positive rate of single DCG and single EEE(87.8% ,86.5% ) ,theSSS positive rate ofDCG combined EEE(97.3% ) was sig‐nificantly rose ,P<0.05 both .Conclusion:Dynamic electrocardiogram combined esophageal electrophysiological ex‐amination can evaluate sinus node function from different angles ,which can significantlyincrease SSS diagnose rat .

Objective To evaluate the mid-term results of arthroscopic anterior cruciate ligament (ACL) reconstruction using Transfix technique.Methods From August 2002 to December 2003,38 patients (24 left knees and 14 right knees) with ACL ruptures underwent arthroscopic ACL reconstruction with hamstring tendon using Transfix femoral fixation and interference screws tibial fixation.There were 21 males and 17 females,aged from 19 to 48 years (average,28.4 years).The causes of injury included sports injury in 27 cases,traffic injury in 2 cases and fall injury in 2 cases,and 7 patients had no significant injury.There were 6 cases of acute injury and 32 cases of old injury.Anterior drawer test was positive in 35 cases,weak positive in 1 case and negative in 2 cases.Lachman test was positive in 37 cases,and weak positive in 1 case.The Lysholm score was used to evaluate the results.Moreover,X-rays and MRIs were used to observe the conditions of graft and bone tunnel.Results Thirty-six patients were followed up for 6.3 to 7.6 years (average,6.8 years).All patients had normal joint range of motion.The Lysholm score improved from preoperative 64.4±4.52 to postoperative 85.6±4.60,and the difference was statistically significant (P ＜ 0.05).The X-rays and MRIs showed femoral and tibial tunnel enlargement in 3 cases,femoral tunnel enlargement in 5 cases and tibial tunnel enlargement in 3 cases.No joint space narrowing was found in all patients.One patient underwent arthroscopic revision ACL reconstruction with allograft tendon using bioabsorbable interference screws fixation on both tibial and femoral sides for re-rupture of ACL 4 years after operation due to trauma.Conclusion Arthroscopic ACL reconstruction with hamstring tendon using Transfix femoral fixation and interference screws tibial fixation is an effective method,which can provide satisfactory joint range of motion and stability.

Objective To assess the outcomes of modified spiral ileal orthotopic neobladder.Methods From January 1998 to January 2008, 32 patients (all male) underwent radical cystectomy and spiral ileal orthotopic substitution for muscle invasive bladder cancer. A segment of 40 to 45 cm ileal loop was isolated, detubularized, and reconfigured in spiral shape to form a pouch. Bilateral ureters were reimplanted by inserting the 1 cm distal segment into the pouch to form a Split-Cuff nipple.The bottom of the pouch was opened and anastomosed with the urethra (4 stitches). Results There were no perioperative deaths. The mean operative time was 281.2±48.7 min. Blood loss was 545.4±181.9 ml. Twenty cases required a blood transfusion, the mean volume of intraoprative blood transfusion was 430.8±235.9 ml. The average hospital stays were 26.8±9. 7 days. Rate of daytime continence was 93. 7% (30/32) while nighttime continence was 81.3% (26/32). Urodynamic studies were carried out in 23 cases 6 months after surgery. Neobladder capacity at first desire to urinate was 315.0± 33.4 ml(270-420 ml). The maximum neobladder capacity was 490. 3±39.7 ml(350-600 ml).The maximum flow rate (Qmax) was 16.5 ± 5.9 ml/s. Full resting pressure was 22. 5 ± 11.8 cm H2O. Peak voiding pressure was 78.3 ± 14.7 cm H2O. After mean 58. 4 months' follow up (range 22 to 132), 4 cases died of metastasis of bladder cancer. Conclusion Modified spiral ileal orthotopic neobladder is a reasonable option for treating invasive bladder cancer.

Objective To investigate the clinical therapeutic effect of Xuebijing injection for treatment of patients with diabetic nephropathy(DN)and its mechanism. Methods 60 DN patients were randomly divided into Xuebijing group and control group(each,30 cases). The patients in both groups received western conventional treatment,and the patients in Xuebijing group received additionally Xuebijing injection intra-venous injection once a day for 14 days. The fasting blood glucose(FBG),glycosylated hemoglobin(HbA1c),urinary albumin excretion rate(AER),blood urea nitrogen(BUN),serum creatinine(SCr),hematocrit(HCT),fibrinogen(Fg),whole blood viscosity,total cholesterol(TC),triglyceride(TG),low density lipoprotein cholesterol(LDL-C),high density lipoprotein cholesterol(HDL-C)and interleukin -6(IL-6),tumor necrosis factor-α(TNF-α)and urine β2-microglobulin(β2-MG)levels before and after treatment were detected,and the curative effect was also observed in both groups. Results In the control group blood FBG,BUN,SCr,TC,IL-6 and TNF-αafter treatment were significantly decreased and HDL-C significantly increased compared with those before treatment(all P<0.05). Compared with those before treatment,in Xuebijing group after Xuebijing therapy,blood FBG,β2-MG,AER,BUN, SCr,TC,TG,HCT,blood viscosity,IL-6 and TNF-αwere significantly decreased,and HDL-C was obviously increased,but there were no significant differences in HbA1c,LDL-C and Fg before and after treatment. The above indexes were changed significantly in Xuebijing group compared with those in control group〔FBG(μg/L):6.98±1.14 vs. 9.73±1.62,β2-MG(μg/L):32.1±10.9 vs. 57.2±15.1,AER(μg/min):86.0±28.1 vs. 152.0±51.6,BUN (mmol/L):12.4±8.1 vs. 19.5±8.9,SCr(μmol/L):301.2±151.9 vs. 371.3±168.6,HCT:0.283±0.075 vs. 0.351±0.059,TC(mmol/L):3.4±1.8 vs. 4.1±1.5,TG(mmol/L):3.4±1.5 vs. 3.6±1.7,HDL-C(mmol/L):1.90±0.75 vs. 1.50±0.25, IL-6 (ng/L):8.96±2.07 vs. 12.75±2.47, TNF-α(pmol/L):17.85±4.75 vs. 20.87±4.90,P<0.05 or P<0.01〕. The total efficiency in Xuebijing group was significantly higher than that in control group(83.3%vs. 36.7%,P<0.01). Conclusion Xuebijing injection has significant protective effects on patients with DN,and the mechanism might be associated with increasing tissue perfusion and inhibiting excessive inflammatory cytokines release.

Objective To master the status of iodine content in drinking water and iodine nutritional status of population before and after the salt iodine concentration reduction in 2012 in Meizhou City, and to provide a scientific basis for safety assessment of salt iodine content after adjustment of the policy.Methods Using stratified random sampling method, drinking water samples were collected, and iodide content was measured by cerous sulfate catalytic spectrophotometry.Urine samples of children aged 8-10 were collected, in which the iodide content was quantitatively tested by arsenic cerium catalytic spectrophotometry.Samples of household edible salt were collected to determine iodine content by direct titration in 2012 before (September 2011), and after the salt iodine concentration reduction (September 2012 and September 2013).Results A total of 422 water samples were measured, the median iodine content of water was 2.4 μg/L.The water iodine median was 2.1 μg/L in centralized water supply (n =163),and 2.9 μg/L in decentralized water supply (n =259), the difference was statistically significant (U =-2.526, P ＜ 0.05).Totally 800 and 803 urine samples of children aged 8-10 were collected in 2011 and 2012, median urinary iodine was 216.5 and 207.5 μg/L, respectively, which were higher than that in 2013 (n =807, 190.0 μg/L, x2 =17.040,24.868, all P ＜ 0.05).Urinary iodine ≥300 μg/L ratio was significantly decreased (2013 than 2011 and 2012,19.3％ (156/807) vs.26.5％ (212/800) and 24.5％ (197/803), x2 =6.363, 11.695, all P ＜ 0.05), and urinary iodine ＜ 100 μg/L rose in the proportion (2013 than 2011, 18.0％ vs.13.5％, x2 =6.045, P ＜ 0.05).A total of 2 410 household salt samples were tested, and the coverage rate of iodized salt, iodized salt qualified rate, the consumption rate of qualified iodized salt were all higher than 98.8％.Totally 800, 803 and 807 salt samples were collected in 2011, 2012 and 2013, the salt iodine medians were 31.0, 27.7 and 25.4 mg/kg, respectively, the difference between the salt iodine medians was statistically significant (H =91.422, P ＜ 0.05).Conclusions Iodine excess risk is significantly decreased, and the level of iodine nutritional status of the city's population is appropriate after the salt iodine concentration reduction in 2012.The salt iodine concentration adjusted is suitable and safe.

Objective The aim of this study was to assess the current situation and master degree on medical statistics among the medical correlation personnel, in order to provide useful information for transformation of education towards the medical correlation personnel . Methods Using cluster random sampling method to select 358 the medical correlation personnel who were recruited from health institutions in Chongqing to respond to the questionnaires. Questionnaire including respondent basic information, statis-tical knowledge and statistical knowledge needs. The data of the survey were analyzed by chi-square test, descriptive statistics analysis. Results 94.7% of the surveyed used statistical knowledge in the process of work or study. The main concentration of medical statistical knowledge utilization rate, the proportion of receive professional education or training courses of medical statistics and the willingness to participate in specialized training of medical statistics is 20-30 age group, No Title group, Master and over group andStudents group. As for ten categories of common statistical methods, thirty percent of people can use them skillfully, but the majority of the more advanced statistical analysis methods cannot be used or have never heard of. The greatest demand for learning ten kinds of common statistical methods is calculating cor-rectly through statistical software. Conclusion The vast majority of medical personnel need to use medical statistics in the actual work and study, but they have a lower mastery of statistical methods. Therefore, we should strengthen the medical statistics teaching and training for medical personnel.

Objective　To introduce the technique of mitral v alve replacements in beating heart, and review the clinical experience in 234 ca ses of operation. Methods　A total of 234 patients of mitral val ve replacement in beating heart with mild hypothermic extracorporeal circulation (30～32 ℃) were reviewed. Results　 The procedures underwe nt fluently and only 2(0.85%) died early postoperatively. No low cardiac output , arrhythmia and cer ebral embolism complications was found. Conclusion　Results sugg ested that mitral valve replacement in beating heart is a safe and available method and is good in extenuating myocardial and pulmonary i njury from ischemia-reperfusion and deep hypothermia.