Objective To explore the expression of EphB4 and VEGF in esophageal cancer tissues and their relationship with microvessel density (MVD ) ,and analysis the curative effect of postoperative esophageal cancer radical under thoracoscope . Methods Theexpression of EphB4 and VEGF was detected by immunohistochemistry in tumor specimens from 76 cases of esopha-geal squamous cell carcinoma and paratumor normal specimens ,used CD34 as marker to count MVD .According to the situation of expression of EphB4 and VEGF ,we analysis their relationship with lymph node metastasis rate ,recurrence and 5-year survival rate . Results The positive expression rate of EphB4 and VEGF in cancerous tissue (57 .89% and 61 .84% ) ,were significantly higher than that in tissue adjacent to carcinoma(0 and 7 .89% )(P<0 .05) .The positive expression rate ofEphB4 and VEGF in high MVD values of patients (67 .44% and 76 .19% ) ,were significantly higher than thatin low MVD values of patients (45 .45% and 44 .11% )(P<0 .05) .The positive expression rate ofEphB4 and VEGF in the patientswith lymph node metastasis group and associ-ated with recurrence ,were significantly higher than that of group without lymph node metastasis and group without recurrence (P<0 .05) .The positive expression rate of EphB4 and VEGF in patients of greater than or equal to 5 years of survival rate(45 .00% and 45 .45% ) ,were significantly lower than in patientsof Less than 5 years of survival rate (80 .36% and 85 .19% )(P<0 .05) .Conclu-sion EphB4 and VEGF are highly expressed in esophageal cancer tissue ,which may be closely associated withmicrovessel density , and lymph node metastasis ,recurrence and 5 years survival rate ;the curative effect of positive expression rate of EphB 4 and VEGF is poor .

Objective:To investigate the effect of urethral plate reconstruction and tubular urethroplasty (a modified Koyanagi procedure) on voiding function and pain factors in children with hypospadias.Methods:A total of 80 children with hypospadias who were treated at Hangzhou Children's Hospital between January 2019 and December 2020 were included in this study. These children were divided into a study group and a control group, with 40 children in each group. The study group underwent modified Koyanagi surgery, while the control group received traditional urethral orifice basal vessel flap urethroplasty. The operative indicators and complications of hypospadias were compared between the two groups. Changes in pain factor levels were analyzed before and 3 days after surgery. Therapeutic effects and changes in voiding function were evaluated 12 months after surgery.Results:The intraoperative blood loss in the study group [(24.53 ± 7.84) mL] was significantly less than that in the control group [(43.12 ± 14.35) mL), while the postoperative length of hospital stay [(6.52 ± 1.03) days, t = 7.19, P < 0.05] in the study group was significantly shorter than that in the control group [(7.84 ± 1.26) days, t = 5.13, P < 0.05]. The surgical time in the study group [(132.42 ± 16.56) minutes] was significantly longer than that in the control group [(114.35 ± 17.48) minutes, t = 4.74, P < 0.05). The incidence of complications in the study group [7.50% (3/40)] was significantly lower than that in the control group [22.50% (10/40), χ2 = 5.54, P = 0.019]. At 3 days after surgery, the serum levels of substance P [(147.92 ± 18.98) μg/L], neuropeptide Y [(74.34 ± 5.65) mg/L], and prostaglandin E 2 [(138.28 ± 21.45) ng/L] in the study group were significantly lower than those in the control group [(189.47 ± 21.25) μg/L, (93.51 ± 6.58) mg/L, (179.95 ± 24.34) ng/L, t = 9.22, 13.97, 8.10, all P < 0.05]. At 12 months after surgery, the cure rate in the study group was significantly higher than that in the control group [90.00% (36/40) vs. 70.00% (28/40), χ2 = 5.00, P = 0.025]. At 12 months after surgery, the study group had a higher postoperative urine output [(140.92 ± 12.84) mL] than the control group [(133.27 ± 10.32) mL], with a higher average urine flow rate [(8.54 ± 0.38) mL/s] and a higher maximum urine flow rate [(12.76 ± 1.32) mL/s] than the control group [(7.95 ± 0.47) mL/s, (11.54 ± 1.28) mL/s]. All differences were statistically significant ( t = 2.93, 6.17, 4.19, all P < 0.05). Conclusion:The modified Koyanagi procedure has a significant therapeutic effect on hypospadias in children and can significantly improve their voiding function and inhibit the release of pain factors.