OBJECTIVE: To investigate the curative effects of nanometer silver dressing and recombinant bovine basic fibroblast growth factor gel on burn residual wounds.METHODS: Forty burn patients with residual wounds because of deep second degree burn and full-thickness burn, were randomly divided into control group and management group. There were 20 patients in both groups. The patients of management group were treated by nanometer silver dressing and recombinant bovine basic fibroblast growth factor gel. The patients of control group were treated by saline and paraffin absorbent gauze. Healing time, wound healing rates at different time points,cases of infected wound and results of bacterial culture before and 7 days following treatment, and drug adverse reaction were recorded.RESULTS: The healing time of management group was significantly shorter than the control group (P < 0.01). The wound healing rates of management group was significantly higher than the control group at different time points (P< 0.01). The cases of infected wound was significantly fewer than the control group after treating (P < 0.01). The pathogenic bacteria detection rate was significantly lower than the control group after 7 days (P < 0.01).CONCLUSION: There was better antibacterial activity, decurtating the healing time when the management of nanometer silver dressing and recombinant bovine basic fibroblast growth factor gel on burn residual wounds were put into practice.

Purpose To explore CT manifestations of thyroid carcinoma and its correlation with neck lymph node metastasis. Materials and Methods CT findings of 165 patients with thyroid carcinoma confirmed by surgical pathology were studied, including number, shape, size, calcium, necrosis, surrounding invasion and enhancement of substantial part, and its correlation with neck lymph node metastasis was also analyzed. Results 107 out of 165 patients (64.85%) suffered from neck lymph node metastasis. Different tumor number, calcium and necrosis were not associated with the rate of neck lymph node metastasis (χ2=0.009, 2.606, 1.522;P>0.05);tumor shape, size, surrounding invasion and enhancement were significantly different from the rate (χ2=26.510, 75.995, 68.922, 20.819;P<0.05). Patients age, tumor shape, size, enhancement and surrounding invasion were positively correlated with lymph node metastasis (r=0.124, 0.243, 0.276, 0.287, 0.395;P<0.05);the sequence of correlation was as follows:surrounding invasion>enh ancement>shape>size>age. However, patients gender, tumor number, calcium and necrosis showed on correlation (r=0.074, 0.126, 0.005, 0.121;P>0.05). Conclusion Lymph node metastasis is mainly associated with factors like age, tumor shape, size, enhancement and surrounding invasion. It is advisable that patients with high risk rate may consider selective cervical lymph node dissection.

Objective To develop an HPLC method for simultaneous determination of contents of asiaticoside, tetrahydropulmatine and saikosaponin d in Shenji Huwei Granules. Methods The analysis was performed on a R&C C18 column (250 mm × 4.6 mm, 5 μm) by using the mobile phase of acetonitrile (A) - phosphate buffer (which used potassium dihydrogen phosphate 8.34 g, potassium phosphate 0.87 g dissolved by 1000 mL water) with gradient elution (0–15 min, 20％A; 15–30 min, 20％→40％A; 30–42 min, 40％A; 42–45 min, 40％→48％A; 45–50 min, 48％A; 50–70 min, 48％→50％A). The flow rate was 1.0 mL/min; the detection wavelength was set at 210 nm; the column temperature was maintained at 30 ℃. Results Asiaticoside, tetrahydropulmatine and saikosaponin d were in the linear ranges among 0.173–2.770 μg (r=0.9999), 0.021–1.320 μg (r=0.9992), 0.151–9.660 μg (r=0.9993), respectively. The average recovery rates of asiaticoside, tetrahydropulmatine, saikosaponin d were 96.25％, 97.02％, and 97.84％, respectively, and RSD were 2.31％, 4.51％, 1.87％, respectively. Conclusion This method is simple, with good separation effect and strong specificity, and can be used for simultaneous determination of contents of asiaticoside, tetrahydropulmatine and saikosaponin d in Shenji Huwei Granules, which provides references for perfection of quality control of Shenji Huwei Granules.

Objective:This study aims to investigate the correlation between the number of resected lymph nodes (LNs) and the prognosis of patients with node-negative non-small cell lung cancer (NSCLC). Methods:A retrospective review of 305 patients with NSCLC, who received curative resection between January 2004 and December 2009, was conducted. All patients were proved without lymph node involvement histopathologically. The prognostic impact of the number of negative LNs and the clinicopathologic factors were analyzed. Results:The overall median survival time and the 1-, 3-, and 5-year overall survival rates were 60.0 months, 76.1%, 59.3%, and 47.1%, respectively. Survival analysis confirmed that the number of negative LNs, T staging and the stations of the mediasti-nal lymph nodes dissected were showed to be independent prognostic factors. Patients with a high number of negative LNs had better overall survival than patients with a low number of negative LNs (P<0.05). The patients with dissected LNs counts of more than 11 for cases with pTl~2 tumor (P<0.05) and more than 16 for cases with pT3 tumor (P<0.05) had better long-term survival outcomes. The post-operative complication rate was 12.1%, which was not significantly correlated with the number of dissected lymph nodes (P>0.05). Conclusion:The number of negative lymph nodes is an independent prognostic predicting factor for node-negative NSCLC. Sufficient dissection of LNs is recommended to improve the survival of the patients with node-negative NSCLC.

Objective To investigate the correlation between the number of resected lymph nodes(LNs) and the prognosis of patients with node-negative esophageal carcinoma.Methods A retrospective review of 429 patients receiving esophagectomy with morden two-field lymphadenectomy for cancer between January 1998 and December 2008 was performed.All patients were proved without lymph node involvement histopathologically.The prognostic impact of the number of negative LNs and the clinicopathologic factors were analyzed.Results The overall median survival time was 63.0 months,and the 1-,3-,and 5-year overall survival rates were 78.5％,64.0％ and 51.2％,respectively.Survival analysis confirmed that the number of negative LNs and the depth of tumor invasion were showed to be independent prognostic factors.Patients with a high number of negative LNs had better overall survival than patients with a low number of negative LNs(P ＜ 0.05).The patients had better long-term survival outcomes with dissected LNs counts of more than 15 for cases with pT1 tumor(P ＜ 0.05),and more than 20 for cases with pT2-3 tumor(P ＜ 0.05).Conclusion The number of negative lymph nodes is an independent prognostic predicting factor for node-negative esophageal carcinoma.Sufficient dissection of LNs is recommended to improve the survival of patients with node-negative esophageal carcinoma.

Objective:To explore the clinical application value of 3D printing technology in percutaneous nephrolithotomy(PCNL) to complex renal calculi.Methods:The clinical data of 41 patients with complex renal calculi from May 2018 to October 2019, in the First Affiliated Hospital of Xiamen University and Xiang'an District of the First Affiliated Hospital of Xiamen University were retrospectively analyzed. There were 19 cases underwent PCNL after 3D printing (3D printing group), and 22 cases during the same period did not undergo 3D printing before operation (control group). Before operation, the two groups underwent CT plain scan enhanced examination. In 3D printing group, 3D printing technology was used to obtain 3D renal models, then 3D renal models were used for preoperative design and simulation of surgical puncture and preoperative conversation.The control group only underwent PCNL after routine examination.The ages of the patients in 3D printing group and control group were (42.9±2.5) vs. (41.3±2.9) years old, male/female ratio 11/8 vs. 12/10, body mass index (22.4±1.1) vs. (23.2±1.4) kg/m 2, serum creatinine (42.9±2.5) vs. (78.2±4.5) μmol/L, stone size (5.0±1.2) vs. (5.2±1.3) cm, the CT values of the stones was (930±210) vs.(950±200) HU. The difference of above parameters was not statistically significant ( P>0.05). The following indexes were compared between the two groups: score of questionnaire on satisfaction of preoperative conversation, and datas about operation and postopetation. Results:All the operations were successfully completed. The time of locating the target calyces in 3D printing group and control group was (3.3±1.3) vs. (5.3±3.1) min, and the coincidence of puncture calices was 94.7% (18/19) vs. 54.5%(12/22), and the stone removal rate of the 3D printing group was 78.9% (17/19) vs. 36.4% (8/22), 3D printing group was better than the control group in these respects( P < 0.05). However, there were no significant differences in postoperative complications [21.0% (4/19) vs. 13.6% (3/22)], multi-channel[89.4% (17/19) vs. 86.4% (19/22)], operation time [(121.8±20.2) vs. (132.1±18.5) min], time of hospitalization [(7.6±1.3) vs. (8.0±1.8)d] and time of extubation for renal fistula [(3.8±1.7)vs. (4.5±2.0 )d] (all P > 0.05). During preoperative conversation between the 3D printing group and the control group , the time spent on signing the consent [(17.0±3.9) vs.(21.0±3.3) min], the degree of understanding of the stone condition [(2.5±0.6)vs.(2.0±1.2) points], the degree of understanding of the PCNL surgical process and complications [(2.6±0.6) vs.(1.8±1.3) points] and the degree of satisfaction with the doctor’s preoperative conversation effects [(2.4±0.9) vs.(1.7±1.6) points]were significantly different in comparisons ( P<0.05). Conclusions:3D printing technology can be used in PCNL to directly display the internal anatomical relationship of renal calculi, guide accurate preoperative designing, help improve the operation efficiency and stone clearance rate, and can also be used as a mold in preoperative conversation to improve communication efficiency.

Objective To evaluate the feasibility and efficacy of posterior enlargement of spinal canal for the treatment of multi-segmental cervical diseases without cervical lordosis.Methods From January 2013 to June 2017,a retrospective study was conducted with 21 patients of multi-segmental cervical diseases accompanied cervical lordosis loss,and the complete followup data was obtained.There were 14 males and 7 females,with an average age of 53.9±7.3 years (range,42-65 years).There were 14 multi-segmental cervical spondylotic myelopathy,5 ossification of posterior longitudinal ligament,and 2 congenital cervical stenosis included in this study.The cervical lordotic angle and cervical curvature index were measured preoperatively and 1 year postoperatively.To access the enlargement of spinal canal and spinal cord,the anteroposterior diameter and cross section area of spinal canal or spinal cord were measured on MRI preoperatively and 1 year postoperatively.The Japanese Orthopaedic Association Scores (JOA) was applied to evaluate the neurological function at preoperation and postoperation.Visual Analogue Scales (VAS) was applied to evaluate the pain degree at preoperation and postoperation.Frankel classification was used to assess the severity of spinal cord injury at preoperation and postoperation.Results The follow-up time was 12-26 months,with an average of 16.4 months.The cervical lordosis angle was 3.1°±2.3° preoperatively,and 4.2°±1.6° 1 year postoperatively with a significant difference.The cervical curvature index was 4.4％ ± 1.7 ％ preoperatively and 5.0％ ± 1.5 ％ 1 year postoperatively with no statistically difference.Except for C7T1 level,the preoperative anteroposterior diameter and cross section area of spinal canal at C2.3,C3.4,C4.5,C5.6,and C6.7 level were lower than that at 1 year after operation with a significant difference.Except for C2,3 and C7T1 and level,the preoperative anteroposterior diameter and cross section area of spinal cord at C3,4,C4,5,C5,6,and C6,7 level were significantly lower than that at 1 year after operation.The average JOA score preoperatively was 8.9±1.7.The average JOA score at 3 months postoperatively was 13.1±2.0,which was significantly higher than that preoperatively.At 3 months postoperatively,the average improvement rate was 52.0％,and the superior rate was 52.3 ％.At 1 year postoperatively,the average JOA score was 13.3±2.1,which improved significantly from that preoperatively.The average improvement rate was 54.3 ％,and the superior rate was 61.9％.The VAS score at preoperatively was 3.0±2.4,and which was 2.7± 1.7 at 1 year postoperatively with no significant differences.At pre-operation,the level of Frankel classification was C level in one (4.8％) case,D level in 8 (38.1％) cases and E level in 12 (57.1％) cases.At 1 year postoperatively,the level of Frankel classification was C level in one (4.8％) case,D level in 6 (28.6％) cases and E level in 14 (66.7％) cases,compared with that at preoperatively,there was no statistically significant difference.One patients suffered from neurologic deterioration at 1 year after surgery and recovered after anterior cervical surgery.No other serious complications were occurred.Conclusion For the patients with multi-segmental cervical diseases accompanied cervical lordosis loss,effective spinal decompression by cervical posterior laminoplasty was feasible,and a good clinical efficacy was achieved.

Objective: To evaluate an assay permitting amplification of target 5′-untranslated region (5′-UTR) sequences directly from clinical specimens and distinction among serotypes of enterovirus (EV). Methods: A total of 518 rectal swabs and 148 nasal swabs tested positive by pan-enterovirus real-time PCR were collected. 5′-UTR and the viral protein 1 (VP1) gene fragments were amplified and sequenced separately for serotyping. The inconsistent samples by 5′-UTR and VP1 serotyping were further determined by using the serotype-specific RT-PCR. Results: A total of 553 (83.0%) samples were detected by 5′-UTR serotyping and 318 (47.7%) were detected by VP1 serotyping in all 666 positive specimens, and there was significant difference in the detection rates between two methods in rectal and nasal swabs (P<0.001). For the rectal swabs, the mainly detected serotypes were CoxA6 (217), CoxA16 (88), EVA71 (40), CoxA10 (28) and CoxA4 (27) by 5′-UTR serotyping. Compared with the VP1 serotyping, the sensitivity and specificity of 5′-UTR serotyping were 57.1%-100% and 67.4%-98.1% respectively, with varied consistence with serotypes (kappa value 0.214-0.283). For the nasal swabs, the most frequently detected serotype was EVD68, with the sensitivity of 100%, the specificity of 91.1%, and the poor consistence (kappa value 0.217). CoxA6, CoxA16, EVA71, CoxA10 and EVD68 were further confirmed by serotype-specific RT-PCR. Using VP1 serotyping combined with serotype-specific RT-PCR as a reference method , the effect of performance of 5′-UTR serotyping on diagnosis was increased. Conclusions The performances of 5′-UTR serotyping in enterovirus vary with serotypes. The application of 5′-UTR serotyping should be considered comprehensively according to the purpose of the study.

Objective:To explore the clinical efficacy of reconstructing the calcaneocuboid and calcaneonavicular ligaments with the autologous semitendinosus for chronic bifurcate ligament injury.Methods:A retrospective study was conducted to analyze the clinical data of 12 patients with chronic bifurcate ligament injury who had been treated by anatomical reconstruction with the autologous semitendinosus from March 2018 to January 2021 at Department of Foot and Ankle Surgery, The Fourth Hospital of Wuhan. There were 4 males and 8 females with an age of (41.4±9.6) years. Seven left and 5 right feet were affected; the time from injury to surgery was (9.3±4.3) months. The surgical efficacy was evaluated based on anteroposterior and lateral imaging assessments of foot weight-bearing at 6 months postoperation, comparison of the visual analogue scale (VAS) pain scores for foot weight-bearing walking and the American Orthopaedic Foot and Ankle Society (AOFAS) midfoot scores between preoperation and the last follow-up, stress test for stability of the transverse tarsal joint, recovery of movement, and occurrence of complications.Results:All patients were followed up for (18.4±4.0) months. Their sports activities were completely resumed after postoperative (6.8±3.9) months. Primary wound healing was achieved in all patients. One patient suffered from cutaneous nerve lesion and skin numbness, the symptoms of which disappeared after conservative treatment. Double harmonic curves were observed on the anteroposterior and lateral imaging films of foot weight-bearing in all patients. The spaces in the calcaneocuboid and the calcaneonavicular joints were normal, the articular positions were matched, and the calcaneocuboid joint was stable without recurrence or worsening of displacement. The VAS decreased significantly from preoperative 6.5 (5.6, 7.0) to 0.0 (0.0, 1.0) at the last follow-up, and the AOFAS mid-foot score increased significantly from preoperative (55.6±8.8) points to (92.3±2.6) points at the last follow-up ( P<0.05). The stress test for the stability of the transverse tarsal joint showed joint stability. Conclusion:Reconstruction of the calcaneocuboid and calcaneonavicular ligaments using the autologous semitendinosus is an alternative treatment for patients with chronic bifurcate ligament injury, because it can restore the stability of the bifurcate ligament and obviously improve the foot and ankle functions with limited postoperative complications.

Objective To explore the prognostic values of telomerase reverse transcriptase promoter (TERTp) mutation and 1p/19q co-deletion in newly-diagnosed O6-methylguanine-DNA methyltransferase (MGMT) promoter un-methylated/isocitrate dehydrogenase (IDH) wild-type glioblastoma multiform (GBM). Methods A total of 82 patients pathologically newly-diagnosed MGMT promoter un-methylated/IDH wild-type GBM, admitted to our hospitals from March 2016 to November 2018, were included in this study. TERTp mutations (TERTp wild-type and TERTp mutation [C228 mutation and C250 mutation]) in GBM specimens were detected by PCR sequencing, 1p/19q co-deletion in GBM specimens was detected by fluorescence in situ hybridization (FISH), and clinical data, adverse reactions and prognoses of patients with different molecular typing were compared. Results There were 33 patients in the TERTp wild type group with mean age of 48 years, and 49 patients in the TERTp mutation group with mean age of 59 years; the difference of age was significant (P<0.05); there were no statistical differences in gender distribution, Karnofsky performance status (KPS) scores, tumor sites and surgical resection degrees between the two groups (P>0.05). There were 8 patients with 1p/19q co-deletion and 74 patients without 1p/19q co-deletion; no significant differences in above clinical parameters were noted between the two groups. There were no statistically significant differences in the incidences of bone marrow suppression, digestive tract response and fatigue, disease progression rate, or survival rate between patients from TERTp wild type group and TERTp mutation group, and between patients with 1p/19q co-deletion and patients without 1p/19q co-deletion (P>0.05). No significant differences in above clinical parameters, disease progression rate, and survival rate were noted between patients with C228 mutation and C250 mutation (P>0.05). Conclusion TERTp typing and 1p/19q co-deletion status do not have prognostic value in newly-diagnosed MGMT un-methylated/IDH wild-type GBM patients; patients with TERTp mutations have older age than wild-type patients; patients with C250 mutation trend to have higher survival rate than those with C228 mutation.