1.Recognition of unilateral auditory neuropathy in children
Ying LI ; Zhihan LIN ; Xueyao WANG ; Yang YANG ; Xiao ZHANG ; Yi ZHOU ; Xin JIN ; Zhipeng ZHENG ; Jifeng SHI ; Xuetong WANG ; Jie BAI ; Lining GUO ; Haihong LIU
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2024;59(5):447-454
Objective:This study aimed to compare the audiological characteristics between children with unilateral auditory neuropathy (UAN) and single-sided deafness (SSD) to establish a valid basis for the differential diagnosis of children with UAN.Methods:A retrospective analysis was conducted on audiological and imaging evaluations of children with UAN and SSD who were treated at Beijing Children′s Hospital of Capital Medical University between May 2015 and June 2023. There were 17 children with UAN, comprising 10 males and 7 females, with an average age of 4.7 years. Additionally, there were 43 children with SSD, consisting of 27 males and 16 females, with an average age of 6.5 years. Audiological assessments included Auditory brainstem response (ABR), Steady-state auditory evoked potential (ASSR), Behavioural audiometry, Cochlear microphonic potential (CM), Distortino-product otoacoustic emission (DPOAE), and acoustic immittance test. The results of the audiological assessment and imaging phenotypic between the two groups of children were compared and analyzed by applying SPSS 27.0 statistical software.Results:(1) The UAN group (77.8%) had a significantly higher rate of ABR wave III L than the SSD group (20.9%) ( P<0.01). The PA thresholds at 500 Hz and 1 000 Hz of children with SSD were higher than those of children with UAN, while the ASSR thresholds at 500 Hz, 1000 Hz, 2 000 Hz, and 4 000 Hz of children with SSD were significantly higher than those of children with UAN ( P<0.05). (2) The degree of hearing loss in both UAN and SSD children was predominantly complete hearing loss. The percentage of complete hearing loss was significantly higher (χ2=4.353, P=0.037) in the SSD group (93.0%, 40/43) than in the UAN group (63.6%, 7/11). However, the percentage of profound hearing loss was significantly higher in the UAN group (27.3%, 3/11) than in the SSD group (2.3%, 1/43) ( Fisher′s exact test, P=0.023). In terms of hearing curve configuration, the percentage of flat type was significantly higher in the SSD group (76.7%, 33/43) than in the UAN group (36.4%, 4/11). The proportion of the UAN group (27.3%, 3/11) was significantly higher than that in the SSD group (2.3%, 1/43) in ascending type ( P<0.05). There were no statistically significant differences in the hearing curves of the declining type and other types between the two groups ( P>0.05). (3) The proportion of imaging assessment without abnormality was significantly more common in the UAN group (81.8%) than in the SSD group (37.1%) (χ2=6.695, P=0.015). Conclusions:Compared to children with SSD, the occurrence of wave III L on the ABR test was significantly more common in children with UAN. The percentage of ascending hearing curves was significantly higher in children with UAN than in children with SSD. ASSR thresholds were significantly lower in children with UAN. The normal imaging phenotype was significantly more common in children with UAN than in children with SSD.
2.Gut microbiota aids in differentiating proximal colorectal cancer in the combination of tumor markers
Tianchen HUANG ; Xiaodong HAN ; Yong ZHANG ; Kan LI ; Zhipeng GUO ; Lei LI ; Yachao WU ; Yanjun WANG ; Dongxiao BAI ; Jianan XIAO ; Jiangman ZHAO ; Fuyou ZHOU ; Weili LI
Chinese Journal of Laboratory Medicine 2024;47(4):444-450
Objective:To explore the differences in bacterial community structure between proximal colon cancer (PC), distal colon cancer (DC), and rectal cancer (RC), and the values of featured microbiota in differentiating PC with tumor markers.Methods:This case-control study enrolled 85 newly diagnosed colorectal cancer patients, including 22 PC, 15 DC and 48 RC patients, and 8 colorectal adenoma patients from May 2019 to July 2022 at the Department of General Surgery, Anyang Oncology Hospital. The blood and fecal samples were collected before surgery and then subjected to biochemical tests for tumor markers and 16S rDNA tests, respectively. SPSS (27.0.1) was applied to perform the t-test, one-way ANOVA, Mann-Whitney U test, Kruskal-Wallis H test, and Chi-Squared Test. Also, the receiver operating characteristic curve (ROC) was plotted on tumor markers and/or f_Bacteroidaceae with SPSS software .Results:All groups had significant differences in the CA125 ( F=3.543, P<0.05), CA72-4 ( F=3.596, P<0.05), and serum tumor-associated materials (TAM) levels ( F=5.787, P<0.01). In PC group, the levels of CA125 [PC vs RC, (36.84±6.30) kU/L vs (12.73±4.21) kU/L, P<0.01] and CA72-4 [PC vs RC, (45.56±10.86) kU/L vs (3.30±7.63) kU/L, P<0.01] were significantly higher than that of the RC group, while the level of TAM was remarkably elevated in PC group than in RC group [PC vs RC, (124.84±5.19) U/ml vs (102.44±3.63) U/ml, P<0.001] and CRA group [PC vs CRA, (124.84±5.19) U/ml vs (95.39±8.42) U/ml, P<0.01]. The LEfSe analysis showed that the featured microbiota in the PC group included f_Bacteroidaceae, f_Neisseriaceae, f_Clostridiaceae_1, f_Spirochaetaceae, and so on. The largest area under the ROC belonged to the combination of TAM and f_Bacteroidaceae, which reached 0.845 (95% CI 0.747-0.944), with sensitivity being 0.857 and specificity being 0.815. Conclusions:There is heterogeneity in gut microbiota composition among PC, DC, RC, and CRA. The combination of gut microbiota and tumor biomarkers demonstrated good differentiating effects in proximal colon cancers.
3.Design of Remote Slit Lamp Diagnosis Platform Based on IoT Technology
Tianxing QUE ; Sisi BAI ; Jingru LI ; Shuangshuang CAI ; Shuang LIAN ; Zhipeng YE ; Hao CHEN ; Peipei JIANG
Chinese Journal of Medical Instrumentation 2024;48(2):232-236
In order to realize the diagnosis of slit lamp in cross-regional patients and improve the real-time and convenience of diagnosis,a remote slit lamp diagnosis platform based on Internet of Things(IoT)technology is designed.Firstly,the feasibility of remote slit lamp is analyzed.Secondly,the IoT platform architecture of doctor/server/facility(D/S/F)is proposed and a remote slit lamp is designed.Finally,the performance of the remote slit lamp diagnostic platform is tested.The platform solves the communication problem of distributed slit lamps and realizes respectively numerical control of multi-area slit lamp by multi-eye experts.The test results show that the remote control delay of the platform is less than 20 ms,which supports multiple experts to diagnose multiple patients separately.
4.Influence of curative-intent resection with textbook outcomes on long-term prognosis of gall-bladder carcinoma: a national multicenter study
Zhipeng LIU ; Zimu LI ; Yule LUO ; Xiaolin ZHAO ; Jie BAI ; Yan JIANG ; Yunfeng LI ; Chao YU ; Fan HUANG ; Zhaoping WU ; Jinxue ZHOU ; Dalong YIN ; Rui DING ; Wei GUO ; Yi ZHU ; Wei CHEN ; Kecan LIN ; Ping YUE ; Yao CHENG ; Haisu DAI ; Dong ZHANG ; Zhiyu CHEN
Chinese Journal of Digestive Surgery 2024;23(7):926-933
Objective:To investigate the influence of curative-intent resection with textbook outcomes of liver surgery (TOLS) on long-term prognosis of gallbladder carcinoma (GBC).Methods:The retrospective cohort study was conducted. The clinicopathological data of 824 patients with GBC in the national multicenter database of Biliary Surgery Group of Elite Group of Chinese Journal of Digestive Surgery, who were admitted to 15 medical centers from January 2014 to January 2021, were collected. There were 285 males and 539 females, aged (62±11)years. According to the evalua-tion criteria of TOLS, patients were divided into those who achieved TOLS and those who did not achieve TOLS. Measurement data with normal distribution were represented as Mean± SD, and com-parison between groups was conducted using the independent sample t test. Measurement data with skewed distribution were represented as M( Q1, Q3), and comparison between groups was conducted using the Mann-Whitney U test. Count data were described as absolute numbers, and comparison between groups was conducted using the chi-square test. Comparison of ordinal data were conduc-ted using the Mann-Whitney U test. The Kaplan-Meier method was used to calculate survival rate and draw survival curve, and the Log-rank test was used for survival analysis. The COX stepwise regression model with backward Wald method was used for univariate and multivariate analyses. Results:(1) Achievement of TOLS. Of the 824 patients undergoing curative-intent resection for GBC, there were 510 cases achieving TOLS and 314 cases not achieving TOLS. (2) Follow-up. Of the 824 patients undergoing curative-intent resection for GBC, after excluding 112 deaths within 90 days after discharge, 712 cases were included for the survival analysis. The median follow-up time, median overall survival time and 5-year overall survival rate of the 510 patients achieving TOLS were 22.1(11.4,30.1)months, 47.6(30.6,64.6)months and 47.5%. The median follow-up time, median overall survival time and 5-year overall survival rate of the 202 patients not achieving TOLS were 14.0(6.8,25.5)months, 24.3(20.0,28.6)months and 21.0%. There was a significant difference in overall survival between patients achieving TOLS and patients not achieving TOLS ( χ2=58.491, P<0.05). (3) Analysis of factors influencing prognosis of patients. Results of multivariate analysis showed that TOLS, carcinoembryonic antigen (CEA), CA19-9, poorly differentiation of tumor, T2 stage of eighth edition of American Joint Committee on Cancer (AJCC) staging, T3 and T4 stage of eighth edition of AJCC staging, N1 stage of the eighth edition of AJCC staging, N2 stage of the eighth edition of AJCC staging, adjuvant therapy were independent factors influencing overall survival time of patients undergoing curative-intent resection for GBC ( hazard ratio=0.452, 1.479, 1.373, 1.612, 1.455, 1.481, 1.835, 1.978, 0.538, 95% c onfidence interval as 0.352-0.581, 1.141-1.964, 1.052-1.791, 1.259-2.063, 1.102-1.920, 1.022-2.147, 1.380-2.441, 1.342-2.915, 0.382-0.758, P<0.05). Conclusion:Patients under-going curative-intent resection for GBC with TOLS can achieve better long-term prognosis.
5.Influencing of preoperative total bilirubin on perioperative complications of hepatolithiasis receiving liver resection
Xia OU ; Yule LUO ; Zhipeng LIU ; Haisu DAI ; Yi GONG ; Ying WU ; Yan JIANG ; Jie BAI ; Shuo JIN ; Zhiyu CHEN
Chinese Journal of Digestive Surgery 2024;23(8):1087-1092
Objective:To investigate the influencing of preoperative total bilirubin (TBil) on perioperative complications of hepatolithiasis receiving liver resection.Methods:The retrospective cohort study was conducted. The clinical data of 300 patients with hepatolithiasis who were admitted to 2 medical centers from January 2010 to January 2022 were collected. There were 115 males and 185 females, aged (54±13)years. Measurement data with normal distribution were represented as Mean± SD, and the independent sample t test was used for comparison between groups. Measurement data with skewed distribution were represented as M( Q1, Q3), and the Mann-Whitney U test was used for comparison between groups. Count data were expressed as absolute numbers, and the chi-square test was used for comparison between groups. Variables with P<0.10 in the univariate analysis were included into the multivariate analysis. Univariate analysis was conducted using the Logistic regression model,and multivariate analysis was conducted using the Logistic stepwise regression model with backward Wald method. Continuous variables were converted into categorical variables based on commonly reported cutoff values when conducting Logistic regression analysis. Results:(1) Comparison of clinical data of patients with different preoperative TBil. Of 300 patients with hepatolithiasis, there were 252 cases with low level of preoperative TBil as 14.4(11.1,19.7)μmol/L, and there were 48 cases with high level of preoperative TBil as 44.0(31.3,59.8)μmol/L. Of the pati-ents with low level of preoperative TBil, neutrophils percentage was 62%±10%, cases with intra-operative blood transfusion was 29, and cases undergoing anatomical liver resection was 166. Of the patients with high level of preoperative TBil, neutrophils percentage was 70%±11%, cases with intraoperative blood transfusion was 22, and cases undergoing anatomical liver resection was 15. There were significant differences in cases classified as>grade 2 of ASA classification, neutrophils percentage, cases with intraoperative blood transfusion and cases undergoing anatomical liver resection between patients with low and high level of preoperative TBil ( t=5.182, χ2=33.669, 18.775, P<0.05). (2) Comparison of perioperative complications of patients with different preoperative TBil. Of the 252 patients with low level of TBil, there were 151 cases with complications including 35 cases of serious complications, there was 1 case with postoperative liver failure, the duration of postoperative hospital stay was 13.0(10.0,16.0)days. Of the 48 patients with high level of TBil, there were 32 cases with complications including 17 cases of serious complications, there were 6 cases with postoperative liver failure, the duration of postoperative hospital stay was 14.0(10.0,18.8)days. There were significant differences in cases with serious complications and cases with postoperative liver failure between patients with low and high level of preoperative TBil ( χ2=13.041, 20.879, P<0.05). (3) Analysis of factors influencing postoperative serious complications in patients undergoing liver resection. Results of multivariate analysis showed that age, body mass index (BMI), preoperative TBil and volume of intraoperative blood loss were independent factors influencing postoperative serious complications in patients undergoing liver resection for hepatolithiasis ( odds ratio=3.852, 2.358, 2.935, 5.135, 95% confidence interval as 1.478?9.979, 1.110?5.009, 1.398?6.158, 2.088?12.626, P<0.05). Conclusions:Patients with high level of preoperative TBil have a significantly increased risk of postoperative serious complications and liver failure who receive liver resection for hepatolithiasis. Age, preoperative BMI, TBil and volume of intraoperative blood loss are independent factors influencing postoperative serious complications in patients undergoing liver resection for hepatolithiasis.
6.Study on the regularity of traditional Chinese medicine in treatment of postembolization syndrome after TACE based on data mining
Zhipeng ZHONG ; Bingjie GUO ; Chulan XIAO ; Zifei YIN ; Bai LI
Journal of Pharmaceutical Practice 2023;41(12):747-752
Objective To explore the regularity of traditional Chinese medicine (TCM) in the treatment of postembolization syndrome (PES) after transcatheter arterial chemoembolization (TACE). Methods CNKI, WANFANG and VIP were used as data sources to search the journals and literatures related to TCM treatment from January 2000 to December 2021. Then, relevant TCM formula or Chinese patent medicines preparations were screened out. The Chinese medicinal materials contained were entered into Excel 2019 table database, and the data were analyzed by SPSS Statistics 21.0 and SPSS Modeler 18.0 statistical software. Results 86 qualified prescriptions were included, containing 181 Chinese medicinal materials, with a total frequency of 942 times. Of the 181 Chinese herbs included, there were 28 herbs with frequency ≥10%, with a total frequency of 587. The top 5 Chinese medicinal materials of frequency were licorice, Poria, Atractylodes, Bupleurum and Astragalus. Among the efficacy classifications, tonifying deficiency drugs, heat-clearing drugs and diuretics were most used. In four properties and five tastes, the top three of four properties were warm, flat and cold, and the top three of five tastes were sweet, bitter and pungent. In the classification of meridians, the first three meridians were spleen meridian, lung meridian and liver meridian. 30 association rules were obtained in association rules analysis, 11 common factors were obtained by factor analysis, 6 clustering combinations were obtained by cluster analysis, and 4 commonly used drug combinations were obtained. Conclusion The prescription drugs for the treatment of PES after TACE were mainly tonic drugs, heat-clearing drugs and diuresis and dampness-draining drugs. The treatment methods were mainly invigorating spleen and replenishing qi, clearing heat and dampness and detoxification.
7.Influencing factors of textbook outcomes in liver surgery after radical resection of gallbladder carcinoma: a national multicenter study
Zhipeng LIU ; Xuelei LI ; Haisu DAI ; Weiyue CHEN ; Yuhan XIA ; Wei WANG ; Xianghao YE ; Zhihua LONG ; Yi ZHU ; Fan HUANG ; Chao YU ; Zhaoping WU ; Jinxue ZHOU ; Dong ZHANG ; Rui DING ; Wei CHEN ; Kecan LIN ; Yao CHENG ; Ping YUE ; Yunfeng LI ; Tian YANG ; Jie BAI ; Yan JIANG ; Wei GUO ; Dalong YIN ; Zhiyu CHEN
Chinese Journal of Digestive Surgery 2023;22(7):866-872
Objective:To investigate the influencing factors of textbook outcomes in liver surgery (TOLS) after radical resection of gallbladder carcinoma.Methods:The retrospective case-control study was conducted. The clinicopathological data of 530 patients who underwent radical resection of gallbladder carcinoma in 15 medical centers, including the First Affiliated Hospital of Army Medical University et al, from January 2014 to January 2020 were collected. There were 209 males and 321 females, aged (61±10)years. Patients underwent radical resection of gallbladder carcinoma, including cholecystectomy, hepatectomy, invasive bile duct resection, and lymph node dissection. Observation indicators: (1) situations of TOLS; (2) influencing factors of TOLS. Measure-ment data with normal distribution were represented as Mean± SD, and comparison between groups was conducted using the independent sample t test. Measurement data with skewed distribution were represented as M( Q1, Q3), and comparison between groups was conducted using the Mann-Whitney U test. Count data were described as absolute numbers or percentages, and comparison between groups was conducted using the chi-square test. Comparison of ordinal data between groups was conducted using the Mann-Whitney U test. The univariate analysis was conducted using the corresponding statistical methods based on data type, and variables with P<0.10 were included in multivariate analysis. Multivariate analysis was conducted using the Logistic stepwise regression model. Results:(1) Situations of TOLS. All 530 patients underwent radical resection of gallbladder carcinoma, and there were 498 cases achieving R 0 resection, 508 cases without ≥grade 2 intra-operative adverse events, 456 cases without postoperative grade B and grade C biliary leakage, 513 cases without postoperative grade B and grade C liver failure, 395 cases without severe com-plications within postoperative 90 days, 501 cases did not being re-admission caused by severe com-plications within postoperative 90 days. Of the 530 patients, 54.53%(289/530) of patients achieved postoperative TOLS, while 45.47%(241/530) of patients did not achieve postoperative TOLS. (2) Influencing factors of TOLS. Results of multivariate analysis showed that American Society of Anesthesiologists classification >grade Ⅱ, preoperative jaundice, T staging as T3?T4 stage, N staging as N2 stage, liver resection as right hemi-hepatectomy, and neoadjuvant therapy were independent factors influencing TOLS in patients undergoing radical resection of gallbladder carcinoma ( odds ratio=2.65, 1.87, 5.67, 5.65, 2.55, 3.34, 95% confidence interval as 1.22?5.72, 1.18?2.95, 2.51?12.82, 2.83?11.27, 1.41?4.63, 1.88?5.92, P<0.05). Conclusion:American Society of Anesthesiologists classification >grade Ⅱ, preoperative jaundice, T staging as T3?T4 stage, N staging as N2 stage, liver resection as right hemi-hepatectomy, and neoadjuvant therapy are independent factors influencing TOLS in patients undergoing radical resection of gallbladder carcinoma.
8.Short-term and long-term prognosis analysis of anatomical liver resection for the treatment of perihilar cholangiocarcinoma
Xianghao YE ; Zhipeng LIU ; Haisu DAI ; Yi GONG ; Hao LI ; Zhihua LONG ; Wei WANG ; Yuhan XIA ; Shujie PANG ; Longfei CHEN ; Xingchao LIU ; Haining FAN ; Jie BAI ; Yan JIANG ; Zhiyu CHEN
Tumor 2023;43(6):506-515
Objective:To explore the short-term and long-term prognostic outcomes of anatomical liver resection(AR)for patients with perihilar cholangio-carcinoma. Methods:This is a retrospective study.All data were obtained from 4 centers,including The First Affiliated Hospital of Army Medical University,Eastern Hepatobiliary Hospital of Naval Medical University,Sichuan Provincial People's Hospital and Affiliated Hospital of Qinghai University,of a multi-center database.A total of 305 consecutive perihilar cholangiocarcinoma patients receiving radical resection between January 2013 and June 2021 were included in this study.According to the method of liver resection,all patients were divided into the AR group(n=205)and the non-anatomical liver resection(NAR)group(n=100).The baseline characteristics,short-term prognosis and long-term prognosis of the 2 groups were compared. Results:The perioperative transfusion rate and the 30-day complication rate were significantly lower in the AR group than those in the NAR group(P<0.05).There was no statistically significant difference in the survival rates between the AR and the NAR groups(P>0.05). Conclusion:The 2 hepatic resection modalities had no obvious effect on the long-term prognosis of perihilar cholangiocarcinoma patients after radical resection,but choosing AR tends to achieve a better short-term prognosis and is worth promoting in clinical practice.
9.Diagnostic value of TNF-α in patients with pulmonary infection after liver transplantation
Lei BAI ; Tao LI ; Yibiao HE ; Zhipeng WANG ; Jinming ZHAO ; Xuewen JI
Journal of Chinese Physician 2021;23(6):874-877
Objective:To explore diagnostic value of tumor necrosis factor-α (TNF-α) in patients with pulmonary infection after liver transplantation.Methods:The clinical data of 80 patients with pulmonary infection after liver transplantation in the the First Affiliated Hospital of Xinjiang Medical University from January 2016 to May 2019 were retrospectively analyzed. According to different pathogens, they were divided into bacteria infection group ( n=35) and non-bacteria infection group ( n=45). The general data, levels of serum TNF-α, C-reactive protein (CRP) and procalcitonin (PCT) were compared between the two groups. Logistic regression was performed to explore risk factors for pulmonary infection after liver transplantation. Receiver operating characteristic (ROC) curves were performed to analyze diagnostic value of TNF-α, CRP and PCT. Results:The levels of serum TNF-α, CRP and PCT in bacteria infection group were significantly higher than those in non-bacteria infection group ( P<0.05). Multivariate analysis showed that high TNF-α, CRP, and PCT levels were independent risk factors for bacterial pneumonia after liver transplantation. ROC analysis showed that sensitivity, specificity and areas under ROC curves (AUC) of TNF-α, CRP and PCT for diagnosis of bacterial pulmonary infection after liver transplantation were (80.12%, 72.12%, 80.18%), (83.45%, 73.46%, 83.38%) and (0.802, 0.751, 0.803), respectively. The AUC, sensitivity, and specificity between TNF-α and PCT for diagnosis of bacterial pulmonary infection after liver transplantation were similar ( P>0.05). The AUC, sensitivity and specificity of TNF-α for diagnosis of bacterial pulmonary infection after liver transplantation were better than those of CRP ( P<0.05). Conclusions:The diagnostic value of TNF-α for pulmonary infection after liver transplantation is similar to that of PCT, and is superior to CRP. It can be applied as a reliable index for identifying bacterial pneumonia and non-bacterial pneumonia.
10.Clinical efficacy of the laparoscope-assisted transanal total mesorectal excision for middle-low rectal cancer
Zhipeng ZHANG ; Hongwei YAO ; Ning CHEN ; Yang BAI ; Maolin TIAN ; Dechen WANG ; Jiong YUAN ; Dianrong XIU
Chinese Journal of Digestive Surgery 2017;16(7):695-700
Objective To explore the clinical efficacy of laparoscope-assisted transanal total mesorectal excision (La-TaTME) for middle-low rectal cancer.Methods The retrospective cross-sectional study was conducted.The clinical data of 16 patients with middle-low rectal cancer who underwent La-TaTME in the Peking University Third Hospital from August 2015 to August 2016 were collected.Sequential surgery of La-TaTME was applied to patients in the same team,with laparoscopic surgery first and then transanal surgery.Observation indicators:(1) operation and postoperative recovery situations:conversion to open surgery,anastomosis method,operation time,volume of intraoperative blood loss,intraoperative complications,time for out-of-bed activity,time for liquid diet intake,postoperative complications and duration of postoperative hospital stay.(2) postoperative pathological situations:length of surgical specimen,tumor diameter,distance from tumor to resected distant intestinal canal,complete degree of mesorectum,circumferential resection margin,pathological T stage,pathological N stage,number of lymph node detected and tumor cell differentiation.(3) follow-up.Patients in stage Ⅲ-ⅣV of TNM stage of RC underwent postoperative adjuvant chemotherapy.Follow-up using outpatient examination was performed once every 3 months postoperatively to detect the patients' survival and tumor recurrence up to December 2016.Measurement data were represented as M (range).Results (1) Operation and postoperative recovery situations:all the 16 patients underwent successful La-TaTME without conversion to open surgery,including 10 with colorectal anastomosis,3 with colon-canalis analis anastomosis and 3 with permanent colostomy.Operation time and volume of intraoperative blood loss were 290 minutes (range,215-420 minutes) and 50 mL (range,30-100 mL),respectively.One patient had intraoperative complication,showing broken ends ischemia of sigmoid colon after dragging out resected rectum from the anus,following free splenic flexure of colon,about 5 cm ischemic sigmoid colon were resected,and descending colon-rectum anastomosis was performed.Time for out-of-bed activity and time for liquid diet intake were 1 days (range,1-3 days) and 2 days (range,1-9 days),respectively.Among 3 patients with postoperative complications (Ⅱ stage of ClavienDindo),2 with incomplete intestinal obstruction were improved by gastrointestinal decompression and total parenteral nutrition,and 1 with presacral infection was improved by drainage and antibiotic therapy.Duration of postoperative hospital stay was 7 days (range,5-21 days).(2) Postoperative pathological situations:length of surgecal specimen,tumor diameter and distance from tumor to resected distant intestinal canal were respectively 18.0 cm (range,12.0-24.0 cm),3.5 cm (range,0.5-6.8 cm) and 2.5 cm (range,1.0-5.0 cm).Evaluation of mesorectum of surgical specimen:14 patients had complete mesorectum of surgical specimen and 2 had nearly complete mesorectum.There was no residual tumor at circumferential resection margin,proximal and distal ends.Pathological T stage of 16 patients:T0 (pathological complete response after neoadjuvant therapy),T1,T2 and T3 stages were found in 1,1,4 and 10 patients,respectively.Pathological N stage:12,2 and 2 patients were detected in N0,N1 and N2 stages,respectively.Number of lymph node detected was 16 (range,6-32).Tumor cell differentiation:no tumor cell (pathological complete response after neoadjuvant therapy),high-,moderateand low-differentiated tumors were respectively detected in 1,2,7 and 6 patients.(3) Follow-up.All the patients were followed up for 12 months (range,4-16 months).There were no local tumor recurrence or distant metastasis and death.Conclusion La-TaTME may be a new,safe and effective resection for middle-low rectal cancer.

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