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Objective:To study the effects of miR-128-3p on the migration and invasion of the gastric cancer cells.Methods:qRT-PCR was used to detect the expression of miR-128-3p in 126 gastric cancer tissues and adjacent tissues from Jan 2014 to Jan 2016 at He'nan Cancer Hospital. The effect of miR-128-3p on the invasion and migration of gastric cancer cell line was detected.The expression of miR-128-3p related proteins was detected by Western blotting, miRNA on-line target prediction tool for the prediction of miR-128-3p directly regulated downstream target genes.Results:the expression of miR-128-3p in gastric cancer was significantly higher than that in adjacent non-tumor tissues ( P<0.05). The expression of miR-128-3p was correlated with the vascular tumor thrombus, pN staging and pTNM staging, the prognosis of patients with high expression of miR-128-3p was poor (all P<0.05). MiR-128-3p expression was significantly higher in gastric cancer cell lines ( P<0.05). Online target prediction tool and double luciferase reporter gene showed that CLDN18 was a downstream target gene directly regulated by mir-128-3p. Conclusion:The high expression of miR-128-3p is related to the poor prognosis of gastric cancer patients.
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Objective:To investigate the effect of neoadjuvant chemotherapy on the prognosis of gastric neuroendocrine cancer.Methods:This study included 102 patients with gastric neuroendocrine cancer, the disease-free survival rate (DFS) and overall survival rate (OS) were compared between two groups according whether they were given neoadjuvant chemotherapy before radical resection.Results:Ninteen of the 102 patients received neoadjuvant chemotherapy combined with surgery, while the other 83 patients received upfront surgery . The 1-year survival rate of the direct operation group and the NAC group was 83.0% and 51.8%, respectively, and the 3-year survival rate was 63.0% and 33.3%, respectively ( χ2=9.182, P=0.002). The 1-year disease-free survival rate was 80.4% and 38.5%, respectively, and the 3-year disease-free survival rate was 59.8% and 25.7%, respectively ( χ2=11.142, P=0.001). Subgroup analysis showed that the difference between the two groups was mainly significant between MANEC patients ( χ2=10.742, P=0.001). Multivariate analysis showed that neoadjuvant therapy was an independent risk factor affecting the overall survival rate (all P<0.05). Univariate analysis shows that only adjuvant chemotherapy is the risk factor affecting disease-free survival ( P<0.05). When the neoadjuvant chemotherapy and the direct surgery were matched 1∶1, the OS and DFS of the direct surgery group were better than those of the NAC patients ( χ2=4.014, 3.954; P=0.045, 0.047). Conclusion:Neoadjuvant chemotherapy failed to improve the prognosis of patients with gastric neuroendocrine cancer/MANEC.
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Objective:To establish a nomogram to predict overall survival of patients with stage Ⅰ-Ⅲ gastric cancer (GC) based on preoperative inflammatory markers.Methods:Clinicopathological and follow-up data of 1 035 patients with stage Ⅰ-Ⅲ gastric cancer operated at He'nan Cancer Hospital between May 2015 and Oct 2016 were retrospectively collected. A nomogram was established based on prognostic factors. Harrell's concordance index (C-index), receiver operating characteristic (ROC) curve, calibration curve and decision curve analysis (DCA) were used to verify the performance of the model according to differentiation, calibration and clinical utility.Results:A total of 1 035 patients were enrolled . The median follow-up time was 41.9 months; According to the optimal cutoff value, 170 were with elevated neutrophil-to-lymphocyte ratio (NLR) and 865 with a reduced ratio; 562 in elevated platelet-to-lymphocyte ratio (PLR) vs. 473 in the reduced group; fibrinogen/albumin ratio (FAR) elevated in 108 group vs. 972 in the reduced group; 180 in the prognostic nutritional index score (PNI) elevated group and 855 in the reduced group. Two hundred and sixty-seven patients were categorized at stage Ⅰ, 334 at stage Ⅱ ,434 at stage Ⅲ. Multivariate regression analysis showed tumor location, vascular tumor thrombus, pTNM stage, FAR, PNI and NLR were independent prognostic factors (all P<0.05). The C-index of the nomogram was 0.723 (95% CI: 0.710 -0.736) and had better clinical utility than the American Joint Committee on Cancer (AJCC) 8th TNM staging system 0.693 (95% CI, 0.681 -0.705). The calibration curve of the nomogram showed that the predicted survival rate was consistent with the actual survival rate in GC patients. Compared to AJCC 8th pTNM staging system, the DCA curve indicate that the nomogram has a higher net income. Conclusion:The nomogram predicting overall survival of patients with stage Ⅰ-Ⅲ gastric cancer is established and verified , which provides better individual prediction than TNM staging system.
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Objective:To explore the prognostic value of combined fibrinogen/albumin ratio (FAR) and CA724 in patients with stage Ⅱ/Ⅲ gastric cancer after radical resection.Methods:A total of 932 patients were enrolled in the study, and the best cut-off values of CEA, FAR, NLR and other variables were obtained through ROC curve analysis. According to the FAR-CA724 score, patients were divided into 3 groups: FAR-CA724=0 (CA724<3.43 ng/ml and FAR<0.083), FAR-CA724=1 (CA724≥3.43 ng/ml and FAR≥0.083) and FAR-CA724=2 (CEA≥3.43 ng/ml and FAR≥0.083).Results:After FAR-CA724 grouping, the patient's age (χ 2=12.02, P=0.002), gender (χ 2=15.91, P<0.001), tumor size (χ 2=18.22, P<0.001), hypertension (χ 2=6.35, P=0.042), tumor location (χ 2=26.09, P<0.001), degree of differentiation (χ 2=12.46, P=0.002) and pTNM staging (χ 2=6.68, P=0.035) are significantly different. Survival analysis showed that there were significant differences in OS between the three groups of patients (FAR-CA724=0, 1, and 2: 88.2%, 64.3% and 37.8%, respectively, P<0.001). By multivariate analysis FAR-CA724 is an independent risk factor affecting OS in patients with stage Ⅱ/Ⅲ gastric cancer after radical surgery. Conclusions:Preoperative FAR-CA724 may be a potential blood marker for predicting the prognosis of GC patients.
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Objective:To investigate the expression of annexin A9(ANXA9)in gastric cancer tissues and cells and its effect on the proliferation of gastric cancer cells and the ability of subcutaneous tumorigenesis in nude mice.Methods:Immunohistochemistry and qPCR were used to detect the relationship between the expression of ANXA9 and clinicopathological parameters and prognosis in gastric cancer and paired adjacent tissues.Lentivirus transfection was used to inhibit the expression of ANXA9 in gastric cancer cell line SGC-7901. Cell counting kit-8 (CCK-8) and clone formation were used to detect the changes of proliferation of SGC7901, flow cytometry to detect the changes of SGC-7901 cell cycle, and nude mouse model bearing subcutaneous gastric cancer xenograft was established using SGC-7901 cells with stable ANXA9 knockdown to assess the effect of low expression of ANXA9 on xenograft growth.Results:Immunohistochemistry showed that the expression level of ANXA 9 was 67.1% and 30.7% in gastric cancer tissues and adjacent tissues, respectively. qPCR showed that the expression levels of ANXA 9 mRNA in gastric cancer tissues and adjacent tissues were 0.142±0.107 and 0.819±0.191, respectively. The difference was statistically significant ( P<0.05). The high expression of ANXA9 was different from the low expression group in the degree of tissue differentiation ( P<0.05), and the median survival time was 50 and 59 months, respectively. OD values of the transfected cells were 0.285±0.025, 0.386±0.031, 0.711±0.032, 1.007±0.084, 1.552±0.055 and 0.274±0.026, 0.380±0.049, 0.714±0.035, 1.106±0.081, 1.561±0.060, respectively, compared with 0.294±0.011, 0.445±0.046, 1.076±0.096, 1.588±0.095, 2.286±0.110 in NC group ( P<0.05). Cell clone formation in the transfection group was 207±12 and 225±14, lower than that in the NC group (412±14, P<0.05). After inhibiting the expression of ANXA9, the proportion of G 0/G 1 phase cells in the transfection group was 62.80% and 55.87%, respectively, significantly increased compared with 44.37% in the NC group. The proportions of S-phase cells in the transfected group were 22.74% and 21.44%, respectively, which were significantly lower than that in the NC group 29.19% ( P<0.05), after stable interference with ANXA9, the growth rate of transplanted tumors was significantly slower than that of the control group. On the 23rd day, the average volume of transplanted tumors in the two groups were (625±49) mm 3 and (303±157) mm 3, respectively, and the mass of tumor tissues in the two groups were (1.60±0.11) and (0.57±0.09) g ( P<0.05). Conclusions:Down-regulation of ANXA9 expression can inhibit the proliferation of gastric cancer cells and the ability of subcutaneous tumor formation in nude mice.
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Objective To investigate the effect of the first surgical treatment on progression-free survival (PFS)time of retroperitoneal liposarcoma and the prognosis.Methods We analyzed the clinical data of 74 cases of retroperitoneal liposarcoma from 1998 to 2016 in He'nan Cancer Hospital (Zhengzhou University Affiliated Tumor Hospital Department of General Surgery).Results The results demonstrated that progression-free survival time of the first surgical resection of retroperitoneal liposarcoma in patients related with tumor necrosis (P ＜ 0.001),lobulated tumor (P ＜ 0.001),symptoms (P =0.013),Ro resection (P =0.003),distant metastasis (P =0.028),postoperative chemotherapy (P =0.006) and tumor differentiation (P ＜ 0.001).Progression-free survival time was not correlated with gender,age of first diagnosis,the invasion of adjacent organs,tumor size,operation time and combined organ resection (all P＞0.05).The rate of 1-year,3-year,5-year survival time attached to PFS≤24 m and PFS ＞24 m were 93.7％ vs.94.7,90.5％ vs.80.9％,58.4％ vs.74.8％(P=0.111).Conclusion The first attempt of radical resection determines progression-free survival of retroperitoneal liposarcoma,however,patients' PFS was not related with their overall survival.
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Objective@#To evaluate surgical repair of vesicorectovaginal fistula using transvaginal pedicled omentum pull-through combined transanal colon pull-through.@*Methods@#A total of 11 patients with postoperative vesicorectovaginal fistulas complicating female reproductive system malignant tumors undergoing repairement from Aug 2013 to Aug 2018 were retrospectively analyzed. In order to isolate, protect the bladder and eliminate residual vaginal cavity using transvaginal pedicled omentum pull-through, combined transanal colon pull-through to repair vesicorectovaginal fistula.@*Results@#All the 11 patients in this group completed the operation successfully, and no air or stool passing from the vaginal after the operation. The fistula disappeared in five patients confirmed by cystography and enterograph. The average operation time was 115 min, the average blood loss was 260 ml.Incision fat liquefaction was found in two. Incision infection occurred in one. Urinary dysfunction in two. Anal stenosis was found in four patients which were healed by anal dilation.@*Conclusions@#Transvaginal pedicled omentum pull-through combined transanal colon pull-through can eliminate vesicorectovaginal fistula, improve life quality and avoid colostomy.
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Objective To evaluate surgical repair of vesicorectovaginal fistula using transvaginal pedicled omentum pull-through combined transanal colon pull-through.Methods A total of 11 patients with postoperative vesicorectovaginal fistulas complicating female reproductive system malignant tumors undergoing repairement from Aug 2013 to Aug 2018 were retrospectively analyzed.In order to isolate,protect the bladder and eliminate residual vaginal cavity using transvaginal pedicled omentum pull-through,combined transanal colon pull-through to repair vesicorectovaginal fistula.Results All the 11 patients in this group completed the operation successfully,and no air or stool passing from the vaginal after the operation.The fistula disappeared in five patients confirmed by cystography and enterograph.The average operation time was 115 min,the average blood loss was 260 ml.Incision fat liquefaction was found in two.Incision infection occurred in one.Urinary dysfunction in two.Anal stenosis was found in four patients which were healed by anal dilation.Conclusions Transvaginal pedicled omentum pull-through combined transanal colon pull-through can eliminate vesicorectovaginal fistula,improve life quality and avoid colostomy.
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Objective To explore the clinical application value of carbon nanoparticles labeled lymph node staining combined with artery approach in radical resection of sigmoid colon cancer.Methods The retrospective cohort study was conducted.The clinicopathological data of 40 patients with sigmoid colon cancer who were admitted to the Tumor Hospital of Zhengzhou University (Henan Cancer Hospital) from December 2015 to June 2016 were collected.Among 40 patients undergoing radical resection of sigmoid colon cancer,20 using nanometer carbon lymph node staining combined with artery approach and 20 using the traditional lymph node sorting were respectively allocated into the observation group and control group.Observation indicators:(1) detection of the lymph node and pathological examination;(2) follow-up situations.Follow-up using outpatient examination and telephone interview was performed to detect adjuvant chemotherapy,tumor recurrence or metastasis and surgery-related complications up to June,2017.Measurement data with normal distribution were represented as (x)±s,and comparisons between groups were evaluated with the t test.Comparisons of count data were analyzed using the chi-square test.The comparisons of ordinal data were analyzed using the nonparametric test.Results (1) Detection of the lymph node and pathological examination:40 patients underwent successful radical resection of sigmoid colon cancer.The lymph node sorting time,total and average numbers of lymph node sorting,total and average numbers of lymph node with diameter ＜ 5 mm,cases with lymph node number ＜ 12 and numbers of the first,second and third stations lymph nodes were respectively (13.1±2.4) minutes,522,28.0±7.0,152,8.6±2.5,0,13.7±3.6,9.5±2.5,4.7±1.2 in the observation group and (18.4±3.5) minutes,239,13.0±3.0,64,3.9± 1.7,6,6.1 ± 1.6,6.6± 2.2,2.5± 1.0 in the control group,with statistically significant differences between groups (t =14.562,24.872,19.256,x2 =4.902,t =14.368,10.026,8.210,P＜0.05).The total number of positive lymph node,positive rate of lymph node,metastasis rate of patients,total and average numbers of positive lymph node with diameter ＜ 5 mm and numbers of the first,second and third stations positive lymph nodes were respectively 82,0.22％±0.13％,17/20,51,3.9± 1.9,4.2± 1.8,1.9±0.6,2.3± 1.2 in the observation group and 43,0.48％±0.18％,7/20,38,2.7±1.5,2.1±0.6,2.6±0.7,1.4±0.5 in the control group,showing no statistically significant difference in the positive rate of lymph node and number of the third station positive lymph nodes between groups (t =1.462,1.759,P＞0.05).There were statistically significant differences in the metastasis rate of patients,average number of positive lymph nodes with diameter ＜ 5 mm and numbers of the first and second stations positive lymph nodes between groups (x2 =10.417,t =7.264,4.682,3.410,P＜0.05).(2) Follow-up situations:40 patients were followed up for 12-18 months,with a median time of 16 months.Eighteen and 10 patients in the observation group and control group received postoperative adjuvant chemotherapy,showing a statistically significant difference between groups (x2=5.833,P＜ 0.05).Tumor recurrence or metastasis was respectively detected in 0 and 2 patients (1 with local recurrence and 1 with liver metastasis) in the observation group and control group,with no statistically significant difference between groups (x2=2.105,P＞ 0.05).During the follow-up,there was no surgery-related complication.Conclusion The carbon nanoparticles labeled lymph node staining combined with artery approach in radical resection of sigmoid colon cancer can increase the sorting rate and number of lymph node,and improve the accuracy of postoperative pathological staging.
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Objective To explore the risk factors of ulcerative colitis-associated colorectal cancer (UC-CRC).Methods The retrospective case-control study was conducted.The clinicopathological data of 536 patients with ulcerative colitis (UC) who were admitted to the Henan Tumor Hospital from March 2004 to June 2015 were collected.Observation indicators:(1) follow-up results:cases with follow-up,follow-up time,cases of UC-CRC,age of onset,pathological type of UC-CRC;(2) risk factors analysis affecting occurrence of UC-CRC:gender,age of onset,course of disease,severity of disease,disease classification,extent of lesion,smoking history,family history of colorectal cancer,anemia,hypoproteinemia,body weight loss,extraintestinal manifestations,colonic polyps,backwash ileitis,atypical hyperplasia,anxiety or depression,treatment method and regular endoscopy reexamination.Follow-up using outpatient examination and telephone interview was performed to detect prognosis of patients up to April 2017.Patients underwent colonoscopy once every 6 months within 3 years after diagnosis and once every 1 year after 3 years.Measurement data with skewed distribution were described as M (range).The univariate analysis was done using the chi-square test and Fisher exact probability.The multivariate analysis was done using the Logistic regression model.Results (1) Follow-up results:of 536 patients,450 were followed up for 26.0-120.0 months,with a median time of 76.4 months.During the follow-up,16 patients were complicated with UC-CRC,including 9 males and 7 females.Age of onset of colorectal cancer was 14-78 years,with an average age of onset of 44 years.Pathological type:high-differentiated right colon adenocarcinoma was detected in 5 patients,high-and moderate-differentiated left colon adenocarcinoma in 3 patients,left colon signetring cell carcinoma in 2 patients,moderate-differentiated rectal tubular adenocarcinoma in 3 patients,highdifferentiated rectal papillary adenocarcinoma in 2 patients and malignant lymphoma in 1 patient.(2) Risk factors analysis affecting occurrence of UC-CRC:the results of univariate analysis showed that course of disease,extent of lesion,colonic polyps and atypical hyperplasia were risk factors affecting occurrence of UC-CRC (x2 =14.848,18.885,10.554,P＜0.05).The results of multivariate analysis showed that course of disease ＞ 10 years,lesion involving the whole colon,colonic polyps and atypical hyperplasia were independent risk factors affecting occurrence of UC-CRC (OR=12.893,17.847,7.326,19.742,95％ confidence interval:1.726-74.337,1.445-89.793,1.263-43.128,3.625-96.524,P＜0.05).Conclusion The course of disease ＞ 10 years,lesion involving the whole colon,atypical hyperplasia and colonic polyps are independent risk factors affecting occurrence of UC-CRC.
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Objective To explore the surgical approach of retroperitoneal giant tumors not crossing the midline.Methods We retrospectively analyzed the clinical data of 60 cases of resected giant retroperitoneal tumors (diameter ＞ 10 cm) totally located one-sided of the obdominal cavity from September 2010 to May 2016 in Henan Cancer Hospital.Results Fifty-nine patients underwent successful resection of the tumor,the average operation time was (110 ± 13) min,with an average bleeding volume of (635 ± 22) ml.One patient died of postoperative intra abdominal bleeding.32 cases died during the follow-up for tumor recurrence.The median survival time was 63 months,and the survival rates of the patients at 1,3,and 5 years were 96％,80％,and 54％.Conclusion For large retroperitoneal tumors within one side of the midline,appropriate surgical approach and surgical strategy can reduce the operation time and improve the operation safety.
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Objective To evaluate a novel lymph node (LN) sorting method on surgical resected sample guided by nanometer carbon staining and principle following the supplying artery tributory in rightsided colon carcinoma.Methods From May 2015 to June 2016,51 patients were randomly divided into two groups adopting traditional LN sorting method and that of a combination of nanometer carbon and artery guided.The final LN status were compared between the 2 groups.Results The total LN number and the positive LN in novel method group were higher than control group (437 vs.349,70 vs.54).The dissection time used,the number of harvested positive LN that was ＜ 5 mm were significantly different [(13.1 ± 3.2) minvs.(17.8 ±3.8)min,t=4.75,P=0.000;1.0±l.0vs.0.2 ±0.6,t=3.51,P=0.000].The number of patients with harvested LN less than 12,the rate of positive lymph nodes,the rate of metastasis were not significantly different (all P ＞ 0.05) between the two groups.Conclusions Use of nanometer carbon development combined with artery approach facilitates LN sorting,yielding more positive LNs,and increating the accuracy of pathological staging in right-sided colon cancer.
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Objective To evaluate the result of early repair for urinary fistula caused by iatrogenic injury to ureter,bladder and urethra during resection of rectal cancer.Methods We retrospectively analyzed 26 cases of urinary fistula after resection of rectal cancer patients encountered in Department of General Surgery,Henan Tumor Hospital from October 2005 to May 2016.Urinary fistula was divided into four types according to the site of fistula.Results Surgery was performed ever after the diagnosis of the fistula was identified.In type Ⅰ fistula (6 cases of posterior urethral fistula) the treatment was stent placement and packing of the greater omentum.2 cases of bladder top fistula (type Ⅱ),were treated by fistula repair and cystostomy.Type Ⅲ involved 12 cases (bladder triangle fistula).The treatment was ureter stenting replantation,and cystostomy Type Ⅳ:ureteral fistula in 6 cases,the treatment was end-to-end anastomosis and stenting.After surgery 24 cases were cured and 2 cases (all of type Ⅲ fistula) ended up with permanent bilateral ureterocutaneostomy.Conclusion It is safe and effective to make early remedy repair for ureter,bladder and urethral fistula iatrogenically during rectal cancer resection.
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<p><b>OBJECTIVE</b>To explore the application of three-stitch preventive transverse colostomy in anterior resection of low rectal cancer.</p><p><b>METHOD</b>From May 2015 to March 2016, 70 consecutive low rectal cancer patients undergoing anterior resection and preventive transverse colostomy in our department were recruited in this prospective study. According to the random number table method, 70 patients were divided into three-stitch transverse colostomy group(observation group, n=35) and traditional transverse colostomy group(control group, n=35). Procedure of three-stitch preventive transverse colostomy was as follows: firstly, at the upper 1/3 incision 0.5-1.0 cm distance from the skin, 7# silk was used to suture from outside to inside, then the needle belt line went through the transverse edge of the mesangial avascular zone. At the lower 1/3 incision 0.5-1.0 cm distance from the skin, 7# silk was used to suture from inside to outside, then silk went through the transverse edge of the mesangial avascular zone again and was ligatured. Finally, in the upper and lower ends of the stoma, 7# silk was used to suture and fix transverse seromuscular layer and the skin. The operation time and morbidity of postoperative complications associated with colostomy were compared between two groups.</p><p><b>RESULTS</b>There were no significant differences in baseline data between the two groups(all P>0.05). The operative time of observation group was shorter than that of control group [(3.2±1.3) min vs. (15.5±3.4) min, P<0.05]. Incidences of colostomy skin-mucous separation, dermatitis, stoma rebound were significantly lower in observation group [5.7%(2/35) vs. 34.3%(12/35), P=0.007; 8.6%(3/35) vs. 31.4%(11/35), P=0.036; 0 vs. 17.1%(6/35), P=0.025, respectively], while incidences of parastomal hernia and stoma prolapse in two groups were similar (both P>0.05).</p><p><b>CONCLUSION</b>Compared with traditional transverse colostomy method, the three-stitch preventive transverse colostomy has more operating advantages and can reduce postoperative complications associated with colostomy.</p>
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Humans , Colostomy , Methods , Comparative Effectiveness Research , Operative Time , Postoperative Complications , Epidemiology , Prospective Studies , Rectal Neoplasms , General Surgery , Surgical Stomas , Suture Techniques , Sutures , Treatment OutcomeABSTRACT
<p><b>OBJECTIVE</b>To explore the technical advantages of nano carbon development combined with artery approach in lymph node sorting of rectal cancer.</p><p><b>METHODS</b>From December 2015 to June 2016, 70 patients with of rectal cancer in General Surgery Department of Henan Cancer Hospital were randomly divided into nano carbon development combined with artery approach group(artery approach group) and conventional group. Specimen of artery approach group was placed on the sorting table. Anatomy was performed from the root of inferior mesenteric artery to left colonic artery, sigmoid artery and superior rectal artery. Along the arterial vessel shape, the black-stained lymph nodes and non-stained lymph nodes (perhaps pink, pale yellow, white or pale brown) were examined carefully using visual and haptic combination method for identification of lymph node. From the root of inferior mesenteric artery, central lymph nodes were sorted. Along the vessel shape, vascular lymph nodes were sorted. Intestinal lymph nodes around the rectum were examined as well. Then, specimen was reversed on the sorting table and underwent sorting as above after the examination of obverse. The conventional group received routine method. The total number, the average harvested number, the number of positive lymph nodes and the number of patients with lymph nodes less than 12 were compared between two groups.</p><p><b>RESULTS</b>Among 70 cases, 37 were male and 33 were female with the median age of 57(32-88) years old. Dixon resection was performed in 46 cases, and Miles resection in 24 cases. Total sorting lymph node was 1 105, including 641 of artery approach group and 464 of control group with significant difference (t=20.717, P=0.000). Lymph node sorting time of artery approach group was (12.6±3.9) minutes, which was shorter than (18.2±4.1) minutes of control group (t=12.464, P=0.000). In artery approach group, number of lymph node with diameter less than 5 mm was 142, sorting rate was 22.2%(142/641), of which 29 were positive(20.4%). In conventional group, 37 lymph nodes with diameter less than 5 mm were found, and sorting rate was 8.0%(37/464), of which 6 were positive(16.2%). Number of the first station of lymph node sorting in artery approach group and conventional group was 282(44%) and 169(36.4%); number of the second station lymph node sorting was 230(35.9%) and 180(38.8%); number of the third station lymph node sorting was 129(20.1%) and 115(24.8%).</p><p><b>CONCLUSION</b>The method of nano carbon development combined with artery approach in lymph node sorting of rectal cancer has some advantages, such as simple operation, more harvested lymph nodes, and more accurate pathological staging.</p>
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Objective:To retrospectively analyze related factors of subtype transformation and to identify prognostic factors for pa-tients with retroperitoneal liposarcoma (RPLS). Methods:This study retrospectively analyzed the clinical data of 92 patients with RPLS, which were confirmed by postoperative pathology from July 1997 to October 2014 in Henan Provincial Tumor Hospital. Related studies were reviewed, and the prognoses were followed up. The factors may affect subtype transformation or prognoses were applied to the statistical analysis. Results:A total of 74 patients with RPLS were included according to the recruiting standard. The 5-year survival rate was 48.65%. Lobulated tumors (P=0.013) were the correlative factors that influenced subtype transformation. The Log-rank test showed that the age at diagnosis (P=0.045), multi-visceral resection (P=0.042), tumor necrosis (P<0.001), subtype transformation (P<0.001), and malignant level of pathological subtypes of the first operation (P<0.001) influenced overall survival. Multivariate Cox re-gression analysis showed that tumor necrosis and the malignant level of the initial histological grade were independent factors of over-all survival. Conclusion:Lobulated tumors are likely to transform the subtype. The prognosis of patients with RPLS is correlated with multi-visceral resection, tumors necrosis, subtype transformation, and the malignant level of pathological subtypes of the first opera-tion. Multi-visceral resection could not improve the 5-year survival rate of RPLS, and adjuvant therapy could not improve the prognosis.