OBJECTIVETo improve the methods and reduce the complications of circumcision with a disposable suture device.

METHODSThis study included 325 male patients aged 14-65 (mean 28.9) years, treated for redundant prepuce or phimosis by modified (n = 201) or conventional circumcision with a disposable suture device (n = 124). We compared the incidence of complications and the patients' satisfaction between the two surgical methods.

RESULTSCompared with conventional circumcision, the modified method showed a significantly lower incidence of postoperative bleeding (14.52% vs 2.49% , P < 0.05) and a lower rate of second surgery for penile hematoma (4.03% vs 0.50%, P < 0.05). The patients' satisfaction was markedly higher with the modified method (91.94%) than with conventional circumcision (97.51%) (P < 0.05).

CONCLUSIONModified circumcision with the disposable suture device can significantly reduce the incidence of postoperative bleeding and penile hematoma and therefore deserves wide clinical application.

Adolescent ; Adult ; Aged ; Circumcision, Male ; adverse effects ; instrumentation ; Disposable Equipment ; Humans ; Incidence ; Male ; Middle Aged ; Patient Satisfaction ; Penis ; surgery ; Phimosis ; surgery ; Postoperative Complications ; epidemiology ; Suture Techniques ; instrumentation ; Sutures

Objective To evaluate the importance of the prenatal diagnosis to fetus with mild ventriculomegaly ( MVM) in pregnancy outcome and prognosis. Methods The ultrosonographic results of 51 pregnant women who were admitted to our hospital were collected in this study. In each case,a thorough evaluation of fetal anatomy was performed,karyotyping or MRI was done if needed,and follow-up was done un-til afterbirth. Results In 51 cases of lateral ventriculomegaly fetal:ultrasonography indicated there were 26 fetuses with mild ventriculomega-ly. The incidence of MVM complicated with other abnormities was 46. 0%,and that complicated with chromosome disorder was 11. 5%. Con-clusion Ultrasonography plays an important role in the detection of MVM. Chromosome analysis should be carried out for elder pregnant women when their fetuses are diagnosed as MVM and other complicating abnormities.

OSCE is a new method which has strong objectivity for the evaluation of clin-ical skills examination.According to the actual situation of our college,we chose medicine sta-tion of OSCE to assess the level of the clinical skills of the clinical graduates.

Objective To study the relationship between extracellular signal-regulated kinases（ERK）phosphorylation and indirect activa-tion of the epidermal growth factor receptor（EGFR）in cultured cerebellar granule neurons induced by homocysteine.Methods We pri-marily cultured 7-day-old CD-1 mouse cerebellar granule neurons for 7 days and treated with different agents（saline,AG1478,Hcy and AG1478＋Hcy）.The phosphorylation of ERK was analyzed by Western blot,and apoptotic rate by flow cytometry.Results Compared with saline and AG1478 groups,the phosphorylation of ERK was increased in Hcy group（P 〈 0.05）.When we pretreated the cells with tyr-phostin AG1478,an inhibitor of EGFR,there was no difference in the activation of ERK compared with the control group.We found obvious neuronal apoptosis when 7-day-old CD-1 mouse cerebellar granule neurons were cultured for 7 days and treated with Hcy for 6 hours,and the apoptosis induced by Hcy was aggravated when the neurons were pretreated with AG1478（P 〈 0.05）.No apoptosis was found in the saline and AG1478 groups.Conclusion The role of Hcy on ERK activation suggests the involvement of an indirect activation process of EGFR,which has neural potentially protective effect.

Multimedia teaching and SimMan,which is a portable and advanced patient simulator for team training,were used to develop a new course for the medical students of grade four. This course was named "SimMan clinical techniques training". The course of Sim-Man clinical techniques training can help students comprehend truly all kinds of cases in clinical practices,improve their capabilities of clinical thoughts and clinical techniques,and it makes fine basis for their clinical practices in the hospitals.

Objective To explore the significance of multiple microelectrode guided technique in determining the sensory?motor area of the sub?thalamic nucleus(STN)in deep brain stimulation(DBS)surgeries. Methods A total of 22 electrophysiological recording data of STNs recorded by multiple microelectrode was retrospectively analyzed ,while another 20 electrophysiological recording data of STNs recorded by a single micro?electrode was recruited as the control group. Results A total of 64 microelectrodes were used in 22 STNs guided by multiple electrophysiological recording electrodes. Sensory or motor activated potentials were recorded in 21 sides(95.5%),while regular discharge was recorded in one side. The average length of typical STN activity on the optimal channel of multiple electrophysiological recording electrodes was 5.58±0.53 mm,and the average length of sensory or motor activated potentials was 3.27±1.54 mm. In contrast,the average length of typical STN activity recorded by single microelectrode was 5.02±1.01 mm. However,sensory or motor activated potentials were recorded in 13 sides(65.0%)with the average length of 1.36±0.98 mm. Among the 22 STNs guided by multiple electrophysiological recording electrodes,the final implanted target was consistent with the initially selected anatomic target in 13 sides(coincidence rate,59.1%). In 9 sides,the electrophysiological target was inconsistent with the initially selected anatomic target. Conclusion STN DBS performed with multiple electrophysiological recording electrodes resulted in better outcomes of recording of the average length of typical STN activity or the average length of sensory or motor activated potentials of STN ,final confirmation of STN sensory motor area and determination of the optimal channel of implantation. Application of multiple electrophysiological recording electrodes provides a premise for the precise electrode placement in STN DBS surgeries.

AIM: To discuss the single application on iris localization technology in excimer laser for the treatment of astigmatism.
METHODS:Totally 203 cases (406 eyes) of laser in situ keratomileusis ( LASIK ) in the treatment of compound myopic astigmatism patients were operated from November 2011 to November 2012 in our hospital. They were divided into two groups. One was observation group using iris localization and the other was control group using routine operation. Patients in the observation group of 100 cases ( 200 eyes ) , aged 18-43 years old, spherical diopter was - 1. 25 to - 8. 75D, astigmatism was -1. 0 to -3. 25D. In control group, 103 patients ( 206 eyes ) , aged 19-44 years old, spherical diopter was -1. 75-9. 50D, astigmatism was -1. 0 to -3. 25D. The patients in the observation group before the application of WaveScan aberrometer check for iris image, spherical lens, cylindrical lens and astigmatism axis data operation, only single application of iris location, without using wavefront aberration guided technology, laser cutting patterns for conventional LASIK model, spherical, cylindrical mirror and astigmatism axis  RESULTS: Postoperative residual astigmatism, the observation group was significantly better than the control group. Astigmatism axial measurement after operation, the observation group was significantly less than that of the control group. Postoperative visual acuity at 6mo, the observation group was better than that of the control group. The difference was statistically significant.
data source to preoperative wavefront aberration results. The control group received routine LASIK. It was applicated comprehensive optometry optometry respectively to examine astigmatism and axial, based on the computer analysis during the preoperative, 1wk after the operation, and 6mo. Analysis of using SPSS 17 statistical software, it was independent-sample t test between the two groups of residual astigmatism and astigmatism axis.
CONCLUSION: For patients who cannot complete the wavefront aberration guided treatment of astigmatism, can separate the application of wavefront aberration analyzer automatic iris recognition technology to improve precision of astigmatism treatment, give full play to advanced technical performance of equipment, which has good application value.

OBJECTIVETo compare the clinical curative effect of thoracolumbar burst fracture treated by the posterior unilateral approach corpectomy fusion screw-rod fixation and anterior corpectomy bone fusion screw plate fixation.

METHODSFrom January 2008 to May 2014,36 cases of thoracolumbar burst fracture underwent operation of decompression, fusion, and internal fixation was retrospective analyzed. Among them, 16 patients were treated through posterior approach as posterior group, including 13 males and 3 females aged from 37 to 62 years old; 9 cases caused by falling injury, 3 cases by traffic accident injury,4 cases by heavy aboved;the injury segment was on T₁₂ in 2 cases, L₁ in 5 cases, L₂ in 7 cases, L₃ in 2 cases; according ASIA grade, 3 cases were grade A, 2 cases were grade B, 2 cases were grade C, 5 cases were grade D, 4 cases were grade E; the time between injury and operation ranged from 5 to 15 days. Other 20 patients were treated through anterior-lateral approach as anterior-lateral group, including 15 males and 5 females with age from 27 to 62 years old; 12 cases caused by falling injury, 4 cases by traffic accident injury, 4 cases by heavy aboved; the injury segment was on T₁₂ in 2 cases, L₁, in 7 cases, L₂ in 9 cases, L₃ in 2 cases; for ASIA grade: 4 cases were grade A, 2 cases were grade B, 4 cases were grade C, 6 cases were grade D, 4 cases were grade E; the time between injury and operation ranged from 4 to 12 days. The operation time, bleeding during operation and postoperative drainage volume were observed in two groups,and the changes of nerve function of ASIA grade, clinical efficacy,improved degree of thoracic and lumbar lordosis,and bony fusion were compared between two groups.

RESULTSAll patients were followed up from 12 to 24 months with an average of (15.8 ± 3.3) months. The operation time, bleeding during operation, and postoperative drainage volume had no significant different between two groups (P > 0.05). As compared with preoperative, ASIA grade of two groups at last follow-up had statistically significantly different (P < 0.01), the neural function of two groups after operation was recovered for different extent. The JOA score of two groups was compared between last follow-up and preoperative, the difference had statistically significant (P < 0.01), the two groups showed good clinical effect. The clinical results of ASIA grade, JOA score and RIS had no significant differences between two groups. All patients of two groups were obtained fusion. Thoracic and lumbar lordosis angle improvement degree had no significant difference between two groups ,it bad significant difference had statistical significance compared with preoperative, the two approaches could effectively restore the spinal sequence.

CONCLUSIONFor patients with thoracolumbar burst fracture just treated by anterior decompression and reconstruction of anterior column, according to the degree of operation performer' skill proficiency and the patient' condition to choose, but for patients must performed the spinal canal decompression anterior and posterior, the three column-reconstruction to required anterior-posterior approach, the posterior unilateral approach corpectomy fusion screw-rod fixation obviously shorten operation time, reduce the operation wound, it is worth the clinical promotion.

Adult ; Decompression, Surgical ; methods ; Female ; Humans ; Lumbar Vertebrae ; injuries ; surgery ; Male ; Middle Aged ; Pedicle Screws ; Reconstructive Surgical Procedures ; Retrospective Studies ; Spinal Fractures ; surgery ; Spinal Fusion ; methods ; Thoracic Vertebrae ; injuries ; surgery

Objective To observe the changes in cardiopulmonary exercise test (CPET) variables of children with frequent premature ventricular contraction (PVC)before and after creatine phosphate treatment,to examine the difference of CPET results between PVC patients and healthy children,and to evaluate the effect of frequent PVC on the cardiac reserve function in children.Methods One hundred and nine frequent PVC children and 98 healthy children underwent treadmill exercise test and CPET respectively,the changes of CPET variables were observed among patients before and after treatment as well as among the healthy children.CPET variables include maximal oxygen consumption/kg (VO2max/kg),maximal oxygen consumption/heart rate( VO2max/HR),HR( at different time point),anaerobic threshold ( AT),and AT/VO2 maximum prediction (AT/VO2max pred).Results Before creatine phosphate treatment,VO2max/kg,VO2max/HR and AT/VO2max in frequent PVC children were ( 22.9±7.4 ) ml/( kg·min),( 9.3 ± 1.5 ) ml,( 15.5 ±2.7 ) ml/( kg· min).After creatine phosphate treatment,VO2 max/kg,VO2 max/HR and AT/VO2 max were (26.4 ± 6.0) ml/( kg· min),( 11.4 ± 3.3 ) ml,and ( 17.4 ± 3.8 ) ml/( kg· min).These CPET variables after creatine phosphate treatment in frequent PVC children were obviously higher than those before treatment and there was a significant difference [ VO2 max/kg ( t =2.11,P ＜ 0.001 ),VO2 max/HR ( t =4.02,P ＜ 0.001 ),AT( t =10.2,P ＜ 0.001 )].Control group of 98 healthy children had negative CPET results.Conclusion Cardiac reserve function decreases in frequent PVC children.After treatment,the exercise capacity and cardiac reserve function can be improved.CPET can reflect cardiac functional reserve changes in PVC children.

Objective To detect the level of plasma miR-155 in patients with pancreatic cancer and evaluate its diagnostic value for pancreatic cancer. Methods Sixty-two cases of pancreatic cancer patients, 61 patients of chronic pancreatitis and 36 normal controls were included in the study. miR-155 in the total RNA extracted from the plasma was measured using real time PCR. The diagnostic parameters and relationship of the miR-155 with clinical characteristics in pancreatic cancer patients were analyzed. Results The relative abundance of plasma miR-155 in pancreatic cancer, chronic pancreatitis and normal controls were 5.41 ±3.14,2.59 ±2.49 and 0.77 ± 1.17, and the value was significantly higher in pancreatic cancer group compared with those of chronic pancreatitis and normal group (P ＜ 0. 01 ). No significant correlation between the level of plasma miR-155 and age, sex, tumor size in pancreatic cancer patients was found. But there was a negative correlation between the level of plasma miR-155 and TNM staging (r = -0. 323, P = 0.01 ). For discriminating pancreatic cancer from normal control, the AUC ROC of miR-155 was 0. 943 (95% CI 0.902-0.985), and the sensitivity and specificity were 87.1% and 83.3%, respectively. For discriminating pancreatic cancer from chronic pancreatitis, the AUC ROC of miR-155 was 0.762 (95% CI0. 678-0. 846),and the sensitivity and specificity were 64.5% and 73.8%, respectively. For discriminating pancreatic cancer from chronic pancreatitis and normal, the AUC-ROC of miR-155 was 0. 829(95% CI0. 767-0.892), and the sensitivity and specificity were 62.9% and 84.5%, respectively. Conclusions Plasma miR-155 was significantly increased in patients with pancreatic cancer, and can be used for diagnosis of pancreatic cancer.