BACKGROUND For Siewert type Ⅱ/Ⅲ adenocarcinoma of gastroesophageal junction(AGE), the efficacy of adjuvant chemoradiotherapy(CRT) after D2/R0 resection remains uncertain.AIM To determine whether CRT was superior to ...BACKGROUND For Siewert type Ⅱ/Ⅲ adenocarcinoma of gastroesophageal junction(AGE), the efficacy of adjuvant chemoradiotherapy(CRT) after D2/R0 resection remains uncertain.AIM To determine whether CRT was superior to chemotherapy(CT) alone after D2/R0 resection for locally advanced Siewert type Ⅱ/Ⅲ AGE.METHODS We identified 316 locally advanced Siewert type Ⅱ/Ⅲ AGE patients who were treated with D2/R0 resection at National Cancer Center from 2011 to 2018.57 patients received adjuvant CRT and 259 patients received adjuvant CT.We followed patients for overall survival(OS), relapse-free survival, and recurrence pattern.RESULTS Five-year OS rates of the CRT group and the CT group for all patients were 66.7% and 41.9%(P = 0.010).Five-year OS rates of the CRT group and the CT group for Siewert type Ⅲ AGE patients were 65.7% and 43.9%(P = 0.006).Among the 195 patients whose recurrence information could be obtained, 18 cases(34.6%) and 61 cases(42.7%) were diagnosed as recurrence in the CRT group and CT group, respectively.The local and regional recurrence rates in the CRT group were lower than that in the CT group(22.2% vs 24.6%, 27.8% vs 39.3%).Multivariable cox regression analysis showed that vascular invasion, nerve invasion, and adjuvant CRT were important prognostic factors for Siewert type Ⅲ AGE.CONCLUSION For locally advanced Siewert type Ⅲ AGE, adjuvant CRT may prolong OS and reduce the regional recurrence rate.展开更多
BACKGROUND The studies of laparoscopic-assisted transhiatal gastrectomy(LTG) in patients with Siewert type Ⅱ adenocarcinoma of the esophagogastric junction(AEG) are scarce.AIM To compare the surgical efficiency of LT...BACKGROUND The studies of laparoscopic-assisted transhiatal gastrectomy(LTG) in patients with Siewert type Ⅱ adenocarcinoma of the esophagogastric junction(AEG) are scarce.AIM To compare the surgical efficiency of LTG with the open transhiatal gastrectomy(OTG) for patients with Siewert type Ⅱ AEG.METHODS We retrospectively evaluated a total of 578 patients with Siewert type Ⅱ AEG who have undergone LTG or OTG at the First Medical Center of the Chinese People’s Liberation Army General Hospital from January 2014 to December 2019. The short-term and long-term outcomes were compared between the LTG(n = 382) and OTG(n = 196) groups.RESULTS Compared with the OTG group, the LTG group had a longer operative time but less blood loss, shorter length of abdominal incision and an increased number of harvested lymph nodes(P < 0.05). Patients in the LTG group were able to eat liquid food, ambulate, expel flatus and discharge sooner than the OTG group(P < 0.05). No significant differences were found in postoperative complications and R0 resection. The 3-year overall survival and disease-free survival performed better in the LTG group compared with that in the OTG group(88.2% vs 79.2%, P = 0.011;79.7% vs 73.0%, P = 0.002, respectively). In the stratified analysis, both overall survival and disease-free survival were better in the LTG group than those in the OTG group for stage Ⅱ/Ⅲ patients(P < 0.05) but not for stage I patients.CONCLUSION For patients with Siewert type Ⅱ AEG, LTG is associated with better short-term outcomes and similar oncology safety. In addition, patients with advanced stage AEG may benefit more from LTG in the long-term outcomes.展开更多
BACKGROUND Stage classification for Siewert Ⅱ adenocarcinoma of the esophagogastric junction(AEG)treated with neoadjuvant chemotherapy(NAC)has not been established.AIM To investigate the optimal stage classification ...BACKGROUND Stage classification for Siewert Ⅱ adenocarcinoma of the esophagogastric junction(AEG)treated with neoadjuvant chemotherapy(NAC)has not been established.AIM To investigate the optimal stage classification for Siewert Ⅱ AEG with NAC.METHODS A nomogram was established based on Cox regression model that analyzed variables associated with overall survival(OS)and disease-specific survival(DSS).The nomogram performance in terms of discrimination and calibration ability was evaluated using the likelihood-ratio test,Akaike information criterion,Harrell concordance index,time-receiver operating characteristic curve,and decision curve analysis.RESULTS Data from 725 patients with Siewert type Ⅱ AEG who underwent neoadjuvant therapy and gastrectomy were obtained from the Surveillance,Epidemiology,and End Results database.Univariate and multivariate analyses revealed that sex,marital status,race,ypT stage,and ypN stage were independent prognostic factors of OS,whereas sex,race,ypT stage,and ypN stage were independent prognostic factors for DSS.These factors were incorporated into the OS and DSS nomograms.Our novel nomogram model performed better in terms of OS and DSS prediction compared to the 8th American Joint Committee of Cancer pathological staging system for esophageal and gastric cancer.Finally,a user-friendly web application was developed for clinical use.CONCLUSION The nomogram established specifically for patients with Siewert type Ⅱ AEG receiving NAC demonstrated good prognostic performance.Validation using external data is warranted before its widespread clinical application.展开更多
Diabetes mellitus is associated with foot ulcers,which frequently pave the way to lower-extremity amputation.Neuropathy,trauma,deformity,high plantar pressures,and peripheral vascular disease are the most common under...Diabetes mellitus is associated with foot ulcers,which frequently pave the way to lower-extremity amputation.Neuropathy,trauma,deformity,high plantar pressures,and peripheral vascular disease are the most common underlying causes.Around 15%of diabetic patients are affected by diabetic foot ulcer in their lifetime.64 million people are affected by diabetics in India and 40000 amputations are done every year.Foot ulcers are evaluated and classified in a systematic and thorough manner to assist in determining the best course of therapy.This paper proposes a novel model which predicts the threat of diabetic foot ulcer using independent agents for various input values and a combination of fuzzy expert systems.The proposed model uses a classification system to distinguish between each fuzzy framework and its parameters.Based on the severity levels necessary prevention,treatment,and medication are recommended.Combining the results of all the fuzzy frameworks derived from its constituent parameters,a risk-specific medication is recommended.The work also has higher accuracy when compared to other related models.展开更多
目的本研究旨在比较近端胃切除术(proximal gastrectomy,PG)与全胃切除术(total gastrectomy,TG)对Siewert Ⅱ型食管胃交界处腺癌(Adenocarcinoma of the esophagogastric junction,AEG)的手术治疗效果,探讨PG在AEG治疗中的可行性与安...目的本研究旨在比较近端胃切除术(proximal gastrectomy,PG)与全胃切除术(total gastrectomy,TG)对Siewert Ⅱ型食管胃交界处腺癌(Adenocarcinoma of the esophagogastric junction,AEG)的手术治疗效果,探讨PG在AEG治疗中的可行性与安全性。方法本研究主要纳入了2016年02月至2020年06月于我院接受手术治疗的104例Siewert Ⅱ型AEG患者,根据手术方式的选择,将所有患者分为PG组(n=62)和TG组(n=42),比较两组患者的手术质量,围手术期结局与长期肿瘤学结果。结果两组患者在基线特征分布方面无显著差异,具有可比性(P>0.05)。两种手术方式在手术时间、术中失血量和术后并发症(Clavien-Dindo≥Ⅱ级)等方面无明显差异(P>0.05)。然而,与TG组相比,PG组患者住院时间更短(12[IQR:11,15]vs 15[IQR:14,19]天;t=-1.990,P=0.047),术后6、12个月的体重(6个月:47.8±5.9 vs 50.9±9.2 kg;t=2.090,P=0.039;12个月:46.4±6.4 vs 50.0±9.1 kg;t=2.367,P=0.020)、血清白蛋白(6个月:37.9±4.2 vs 39.3±4.6 g/L,t=2.257,P=0.026;12个月:37.4±3.5 g/L vs 38.9±3.2;t=2.296,P=0.024)及术后12个月的血红蛋白值更低(11.1±2.1 vs 12.2±1.5 g/dL;t=2.688,P=0.008),差异有统计学意义。生存分析表明PG组和TG组患者的3年无复发生存率分别为58.2%和67.4%,差异无统计学意义(χ^(2)=0.669,P=0.414)。结论与TG相比,PG在术后恢复及营养状况方面更有优势,而肿瘤学结果具有可比性。PG或许是治疗Siewert Ⅱ型食管胃交界处腺癌一种可选择的手术方式。展开更多
Based on the observation data of meteorological stations,Doppler radar observation data of Ulanqab City,and ERA-5 reanalysis data,a snowstorm process in Ulanqab City from March 17 to 18,2022 was analyzed.The results s...Based on the observation data of meteorological stations,Doppler radar observation data of Ulanqab City,and ERA-5 reanalysis data,a snowstorm process in Ulanqab City from March 17 to 18,2022 was analyzed.The results show that this was a type Ⅱ snowstorm process generated under the joint influence of upper trough and ground low inverted trough and frontal cyclone.The main period of snowfall can be divided into two time stages,and the total snowfall was more in the south and less in the north,which was consistent with that of average specific humidity field.Water vapor conditions provided by strong water vapor transport and convergence,strong upward movement shown by large vertical velocity field,and the suction action of high-and low-layer divergence and convergence were the reasons for the hourly heavy snowfall on the 18^(th).During the process,radar echoes were mainly sheet-shaped,and composite reflectivity was 15-25 dBZ in most areas.The zero speed line in the first period was positively"S"-shaped,and there was warm advection and southwest wind.On the morning of the 18^(th),after the cold front transited the city,Ulanqab City was gradually controlled by northwest wind,and the snow tended to end.展开更多
目的:对比经上腹左胸手术和Ivor-lewis手术治疗SiewertⅡ型食管胃交界部腺癌(adenocarcinoma of the esophagogastric junction,AEG)在术中和术后各参数中的差别,以及患者预后的差异。方法:回顾性收集320例于河北医科大学第四医院胸外...目的:对比经上腹左胸手术和Ivor-lewis手术治疗SiewertⅡ型食管胃交界部腺癌(adenocarcinoma of the esophagogastric junction,AEG)在术中和术后各参数中的差别,以及患者预后的差异。方法:回顾性收集320例于河北医科大学第四医院胸外科行根治性手术的SiewertⅡ型AEG患者的数据,其中行上腹左胸手术的患者175例,行Ivor-lewis手术的患者145例。比较两组患者的临床病理特征、术中和术后情况、总生存时间(overall survival,OS)和无病生存时间(disease-free survival,DFS),并对影响AEG患者预后的情况进行单因素和多因素分析。结果:两组患者在肿瘤最大直径、pTNM分期、pN分期和下残阳性方面比较有统计学差异(P<0.05);与Ivor-lewis手术相比,行上腹左胸手术患者的术中时间缩短了30 min(P=0.034),术后吻合口瘘发生率更低(1.71%vs 4.83%,P=0.041);相比Ivor-lewis患者,行上腹左胸手术的患者可以获得更好的OS和DFS(P<0.05);单因素和多因素分析显示术前新辅助治疗是SiewertⅡ型AEG患者预后的影响因素(P<0.05)。结论:经上腹左胸手术可以彻底切除肿瘤,保留膈肌的完整,缩短开胸时间,有利于术后快速康复。同时,术后吻合口瘘等并发症的发生率低,有利于及时进行术后辅助治疗,更利于改善AEG患者的预后。展开更多
近年来,食管胃交界部腺癌(adenocarcinoma at the esophagogastric junction,AEG)的发病率居高不下,且呈上升趋势,严重威胁着人们的身体健康。目前,以手术为主的综合治疗是SiewertⅡ型AEG的主要治疗方式,但临床上对手术治疗方案的选择...近年来,食管胃交界部腺癌(adenocarcinoma at the esophagogastric junction,AEG)的发病率居高不下,且呈上升趋势,严重威胁着人们的身体健康。目前,以手术为主的综合治疗是SiewertⅡ型AEG的主要治疗方式,但临床上对手术治疗方案的选择存在很大争议,这主要集中在手术路径选择、纵隔淋巴结清扫、远近端切除范围以及消化道重建等方面。此外,围手术期治疗作为SiewertⅡ型AEG治疗的重要方式,针对其放和/或化疗、靶向、免疫治疗的研究层出不穷,然而却始终未能达成统一共识。需积极寻求多学科、多中心协作,开展高级别的循证医学研究,探索个性化、精准化的治疗方案。展开更多
BACKGROUND Osteopetrosis is a rare genetic disorder characterized by increased bone density due to defective bone resorption of osteoclasts.Approximately,80%of autosomal dominant osteopetrosis type II(ADO-II)patients ...BACKGROUND Osteopetrosis is a rare genetic disorder characterized by increased bone density due to defective bone resorption of osteoclasts.Approximately,80%of autosomal dominant osteopetrosis type II(ADO-II)patients were usually affected by heterozygous dominant mutations in the chloride voltage-gated channel 7(ClCN7)gene and present early-onset osteoarthritis or recurrent fractures.In this study,we report a case of persistent joint pain without bone injury or underlying history.CASE SUMMARY We report a 53-year-old female with joint pain who was accidentally diagnosed with ADO-II.The clinical diagnosis was based on increased bone density and typical radiographic features.Two heterozygous mutations in the ClCN7 and Tcell immune regulator 1(TCIRG1)genes by whole exome sequencing were identified in the patient and her daughter.The missense mutation(c.857G>A)occurred in the CLCN7 gene p.R286Q,which is highly conserved across species.The TCIRG1 gene point mutation(c.714-20G>A)in intron 7(near the splicing site of exon 7)had no effect on subsequent transcription.CONCLUSION This ADO-II case had a pathogenic CLCN7 mutation and late onset without the usual clinical symptoms.For the diagnosis and assessment of the prognosis for osteopetrosis,genetic analysis is advised.展开更多
AIM To evaluate the incidence of lymph node metastasis(LNM) and its risk factors in patients with Siewert type Ⅰ and type Ⅱ pT1 adenocarcinomas.METHODS We enrolled 85 patients [69 men, 16 women; median age(range), 6...AIM To evaluate the incidence of lymph node metastasis(LNM) and its risk factors in patients with Siewert type Ⅰ and type Ⅱ pT1 adenocarcinomas.METHODS We enrolled 85 patients [69 men, 16 women; median age(range), 67(38-84) years] who had undergone esophagectomy or proximal gastrectomy for Siewert type Ⅰ and type Ⅱ pT1 adenocarcinomas. Predictive risk factors of LNM included age, sex, location of the tumor center, confirmed Barrett's esophageal adenocarcinoma, tumor size, macroscopic tumor type, pathology, invasion depth, presence of ulceration, and lymphovascular invasion. Multivariate logistic regression analysis was used to identify factors predicting LNM. We also evaluated the frequencies of LNM for Siewert type Ⅰ and type Ⅱ pT1 adenocarcinomas in meta-data analysis.RESULTS LNMs were found in 11 out of 85 patients(12.9%, 95%CI: 5.8-20.0). Only 1 of the 15 patients(6.6%, 95%CI: 0.0-19.2) who had a final diagnosis of pT1a adenocarcinoma had a positive LNM, whereas 10 ofthe 70 patients(14.2%, 95%CI: 6.0-22.4) with a final diagnosis of pT1b adenocarcinoma had positive LNM. Furthermore, only one of the 30 patients(3.3%, 95%CI: 0.0-9.7) with a tumor invasion depth within 500 μm from muscularis mucosae had positive LNM. Poor differentiation and lymphovascular invasion were independently associated with a risk of LNM. In meta-data analysis, 12 of the 355 patients(3.3%, 95%CI: 1.5-5.2) who had a final diagnosis of pT1a adenocarcinoma had a positive LNM, whereas 91 of the 438 patients(20.7%, 95%CI: 16.9-24.5) with a final diagnosis of pT1b adenocarcinoma had positive LNM. CONCLUSION We consider endoscopic submucosal dissection(ESD) is suitable for patients with Siewert type Ⅰ and type Ⅱ T1 a adenocarcinomas. For patients with T1b adenocarcinoma, especially invasion depth is within 500 μm from muscularis mucosae with no other risk factor for LNM, diagnostic ESD could be a treatment option according to the overall status of patients and the presence of comorbidities.展开更多
Objective:To identify risk factors for anastomotic leakage after gastrectomy in patients with Siewert type II/III adenocarcinoma(AEG)of the esophagogastric junction.Methods:This was a retrospective case-control study ...Objective:To identify risk factors for anastomotic leakage after gastrectomy in patients with Siewert type II/III adenocarcinoma(AEG)of the esophagogastric junction.Methods:This was a retrospective case-control study of 903 patients with Siewert type II/III AEG treated from January 2012 to January 2015 at the Shanxi Cancer Hospital in China.All patients underwent gastrectomy,and their clinical characteristics were analyzed to identify associations with anastomotic leakage.Independent risk factors were identified by binary logistic regression.The 2-year disease-free survival was calculated and compared between patients with anastomotic leakage and control patients.The study was approved by the Institutional Review Board of Shanxi Medical University(approval No.2014-09-39)on September 19,2014.Results:Out of the 903 patients were included in the study,80(8.86%,80/903)experienced anastomotic leakage.The mortality rate attributed to anastomotic leakage was 8.75%(7/80).Logistic regression analysis revealed that preoperative hypoalbuminemia(odds ratio(OR)=3.249,95%confidence interval(CI):1.569-6.725,P=0.002),type of reconstruction(OR=1.795,95%CI:1.026-3.142,P=0.040),and combined organ resection(OR=1.807,95%CI:1.069-3.055,P=0.027)were independent risk factors for anastomotic leakage.Conclusion:Preoperative hypoalbuminemia,type of reconstruction,and combined organ resection were identified as risk factors for anastomotic leakage in patients undergoing gastrectomy for Siewert type Ⅱ/Ⅲ AEG.展开更多
基金Supported by National Natural Science Foundation of China,No.82072734.
文摘BACKGROUND For Siewert type Ⅱ/Ⅲ adenocarcinoma of gastroesophageal junction(AGE), the efficacy of adjuvant chemoradiotherapy(CRT) after D2/R0 resection remains uncertain.AIM To determine whether CRT was superior to chemotherapy(CT) alone after D2/R0 resection for locally advanced Siewert type Ⅱ/Ⅲ AGE.METHODS We identified 316 locally advanced Siewert type Ⅱ/Ⅲ AGE patients who were treated with D2/R0 resection at National Cancer Center from 2011 to 2018.57 patients received adjuvant CRT and 259 patients received adjuvant CT.We followed patients for overall survival(OS), relapse-free survival, and recurrence pattern.RESULTS Five-year OS rates of the CRT group and the CT group for all patients were 66.7% and 41.9%(P = 0.010).Five-year OS rates of the CRT group and the CT group for Siewert type Ⅲ AGE patients were 65.7% and 43.9%(P = 0.006).Among the 195 patients whose recurrence information could be obtained, 18 cases(34.6%) and 61 cases(42.7%) were diagnosed as recurrence in the CRT group and CT group, respectively.The local and regional recurrence rates in the CRT group were lower than that in the CT group(22.2% vs 24.6%, 27.8% vs 39.3%).Multivariable cox regression analysis showed that vascular invasion, nerve invasion, and adjuvant CRT were important prognostic factors for Siewert type Ⅲ AGE.CONCLUSION For locally advanced Siewert type Ⅲ AGE, adjuvant CRT may prolong OS and reduce the regional recurrence rate.
文摘BACKGROUND The studies of laparoscopic-assisted transhiatal gastrectomy(LTG) in patients with Siewert type Ⅱ adenocarcinoma of the esophagogastric junction(AEG) are scarce.AIM To compare the surgical efficiency of LTG with the open transhiatal gastrectomy(OTG) for patients with Siewert type Ⅱ AEG.METHODS We retrospectively evaluated a total of 578 patients with Siewert type Ⅱ AEG who have undergone LTG or OTG at the First Medical Center of the Chinese People’s Liberation Army General Hospital from January 2014 to December 2019. The short-term and long-term outcomes were compared between the LTG(n = 382) and OTG(n = 196) groups.RESULTS Compared with the OTG group, the LTG group had a longer operative time but less blood loss, shorter length of abdominal incision and an increased number of harvested lymph nodes(P < 0.05). Patients in the LTG group were able to eat liquid food, ambulate, expel flatus and discharge sooner than the OTG group(P < 0.05). No significant differences were found in postoperative complications and R0 resection. The 3-year overall survival and disease-free survival performed better in the LTG group compared with that in the OTG group(88.2% vs 79.2%, P = 0.011;79.7% vs 73.0%, P = 0.002, respectively). In the stratified analysis, both overall survival and disease-free survival were better in the LTG group than those in the OTG group for stage Ⅱ/Ⅲ patients(P < 0.05) but not for stage I patients.CONCLUSION For patients with Siewert type Ⅱ AEG, LTG is associated with better short-term outcomes and similar oncology safety. In addition, patients with advanced stage AEG may benefit more from LTG in the long-term outcomes.
基金Supported by Key R&D Program of Zhejiang,No.2023C03172.
文摘BACKGROUND Stage classification for Siewert Ⅱ adenocarcinoma of the esophagogastric junction(AEG)treated with neoadjuvant chemotherapy(NAC)has not been established.AIM To investigate the optimal stage classification for Siewert Ⅱ AEG with NAC.METHODS A nomogram was established based on Cox regression model that analyzed variables associated with overall survival(OS)and disease-specific survival(DSS).The nomogram performance in terms of discrimination and calibration ability was evaluated using the likelihood-ratio test,Akaike information criterion,Harrell concordance index,time-receiver operating characteristic curve,and decision curve analysis.RESULTS Data from 725 patients with Siewert type Ⅱ AEG who underwent neoadjuvant therapy and gastrectomy were obtained from the Surveillance,Epidemiology,and End Results database.Univariate and multivariate analyses revealed that sex,marital status,race,ypT stage,and ypN stage were independent prognostic factors of OS,whereas sex,race,ypT stage,and ypN stage were independent prognostic factors for DSS.These factors were incorporated into the OS and DSS nomograms.Our novel nomogram model performed better in terms of OS and DSS prediction compared to the 8th American Joint Committee of Cancer pathological staging system for esophageal and gastric cancer.Finally,a user-friendly web application was developed for clinical use.CONCLUSION The nomogram established specifically for patients with Siewert type Ⅱ AEG receiving NAC demonstrated good prognostic performance.Validation using external data is warranted before its widespread clinical application.
文摘Diabetes mellitus is associated with foot ulcers,which frequently pave the way to lower-extremity amputation.Neuropathy,trauma,deformity,high plantar pressures,and peripheral vascular disease are the most common underlying causes.Around 15%of diabetic patients are affected by diabetic foot ulcer in their lifetime.64 million people are affected by diabetics in India and 40000 amputations are done every year.Foot ulcers are evaluated and classified in a systematic and thorough manner to assist in determining the best course of therapy.This paper proposes a novel model which predicts the threat of diabetic foot ulcer using independent agents for various input values and a combination of fuzzy expert systems.The proposed model uses a classification system to distinguish between each fuzzy framework and its parameters.Based on the severity levels necessary prevention,treatment,and medication are recommended.Combining the results of all the fuzzy frameworks derived from its constituent parameters,a risk-specific medication is recommended.The work also has higher accuracy when compared to other related models.
文摘目的本研究旨在比较近端胃切除术(proximal gastrectomy,PG)与全胃切除术(total gastrectomy,TG)对Siewert Ⅱ型食管胃交界处腺癌(Adenocarcinoma of the esophagogastric junction,AEG)的手术治疗效果,探讨PG在AEG治疗中的可行性与安全性。方法本研究主要纳入了2016年02月至2020年06月于我院接受手术治疗的104例Siewert Ⅱ型AEG患者,根据手术方式的选择,将所有患者分为PG组(n=62)和TG组(n=42),比较两组患者的手术质量,围手术期结局与长期肿瘤学结果。结果两组患者在基线特征分布方面无显著差异,具有可比性(P>0.05)。两种手术方式在手术时间、术中失血量和术后并发症(Clavien-Dindo≥Ⅱ级)等方面无明显差异(P>0.05)。然而,与TG组相比,PG组患者住院时间更短(12[IQR:11,15]vs 15[IQR:14,19]天;t=-1.990,P=0.047),术后6、12个月的体重(6个月:47.8±5.9 vs 50.9±9.2 kg;t=2.090,P=0.039;12个月:46.4±6.4 vs 50.0±9.1 kg;t=2.367,P=0.020)、血清白蛋白(6个月:37.9±4.2 vs 39.3±4.6 g/L,t=2.257,P=0.026;12个月:37.4±3.5 g/L vs 38.9±3.2;t=2.296,P=0.024)及术后12个月的血红蛋白值更低(11.1±2.1 vs 12.2±1.5 g/dL;t=2.688,P=0.008),差异有统计学意义。生存分析表明PG组和TG组患者的3年无复发生存率分别为58.2%和67.4%,差异无统计学意义(χ^(2)=0.669,P=0.414)。结论与TG相比,PG在术后恢复及营养状况方面更有优势,而肿瘤学结果具有可比性。PG或许是治疗Siewert Ⅱ型食管胃交界处腺癌一种可选择的手术方式。
文摘Based on the observation data of meteorological stations,Doppler radar observation data of Ulanqab City,and ERA-5 reanalysis data,a snowstorm process in Ulanqab City from March 17 to 18,2022 was analyzed.The results show that this was a type Ⅱ snowstorm process generated under the joint influence of upper trough and ground low inverted trough and frontal cyclone.The main period of snowfall can be divided into two time stages,and the total snowfall was more in the south and less in the north,which was consistent with that of average specific humidity field.Water vapor conditions provided by strong water vapor transport and convergence,strong upward movement shown by large vertical velocity field,and the suction action of high-and low-layer divergence and convergence were the reasons for the hourly heavy snowfall on the 18^(th).During the process,radar echoes were mainly sheet-shaped,and composite reflectivity was 15-25 dBZ in most areas.The zero speed line in the first period was positively"S"-shaped,and there was warm advection and southwest wind.On the morning of the 18^(th),after the cold front transited the city,Ulanqab City was gradually controlled by northwest wind,and the snow tended to end.
文摘目的:对比经上腹左胸手术和Ivor-lewis手术治疗SiewertⅡ型食管胃交界部腺癌(adenocarcinoma of the esophagogastric junction,AEG)在术中和术后各参数中的差别,以及患者预后的差异。方法:回顾性收集320例于河北医科大学第四医院胸外科行根治性手术的SiewertⅡ型AEG患者的数据,其中行上腹左胸手术的患者175例,行Ivor-lewis手术的患者145例。比较两组患者的临床病理特征、术中和术后情况、总生存时间(overall survival,OS)和无病生存时间(disease-free survival,DFS),并对影响AEG患者预后的情况进行单因素和多因素分析。结果:两组患者在肿瘤最大直径、pTNM分期、pN分期和下残阳性方面比较有统计学差异(P<0.05);与Ivor-lewis手术相比,行上腹左胸手术患者的术中时间缩短了30 min(P=0.034),术后吻合口瘘发生率更低(1.71%vs 4.83%,P=0.041);相比Ivor-lewis患者,行上腹左胸手术的患者可以获得更好的OS和DFS(P<0.05);单因素和多因素分析显示术前新辅助治疗是SiewertⅡ型AEG患者预后的影响因素(P<0.05)。结论:经上腹左胸手术可以彻底切除肿瘤,保留膈肌的完整,缩短开胸时间,有利于术后快速康复。同时,术后吻合口瘘等并发症的发生率低,有利于及时进行术后辅助治疗,更利于改善AEG患者的预后。
文摘近年来,食管胃交界部腺癌(adenocarcinoma at the esophagogastric junction,AEG)的发病率居高不下,且呈上升趋势,严重威胁着人们的身体健康。目前,以手术为主的综合治疗是SiewertⅡ型AEG的主要治疗方式,但临床上对手术治疗方案的选择存在很大争议,这主要集中在手术路径选择、纵隔淋巴结清扫、远近端切除范围以及消化道重建等方面。此外,围手术期治疗作为SiewertⅡ型AEG治疗的重要方式,针对其放和/或化疗、靶向、免疫治疗的研究层出不穷,然而却始终未能达成统一共识。需积极寻求多学科、多中心协作,开展高级别的循证医学研究,探索个性化、精准化的治疗方案。
基金Supported by the Science and Technology Plan Program of Sichuan of China,No.2018JY0608。
文摘BACKGROUND Osteopetrosis is a rare genetic disorder characterized by increased bone density due to defective bone resorption of osteoclasts.Approximately,80%of autosomal dominant osteopetrosis type II(ADO-II)patients were usually affected by heterozygous dominant mutations in the chloride voltage-gated channel 7(ClCN7)gene and present early-onset osteoarthritis or recurrent fractures.In this study,we report a case of persistent joint pain without bone injury or underlying history.CASE SUMMARY We report a 53-year-old female with joint pain who was accidentally diagnosed with ADO-II.The clinical diagnosis was based on increased bone density and typical radiographic features.Two heterozygous mutations in the ClCN7 and Tcell immune regulator 1(TCIRG1)genes by whole exome sequencing were identified in the patient and her daughter.The missense mutation(c.857G>A)occurred in the CLCN7 gene p.R286Q,which is highly conserved across species.The TCIRG1 gene point mutation(c.714-20G>A)in intron 7(near the splicing site of exon 7)had no effect on subsequent transcription.CONCLUSION This ADO-II case had a pathogenic CLCN7 mutation and late onset without the usual clinical symptoms.For the diagnosis and assessment of the prognosis for osteopetrosis,genetic analysis is advised.
文摘AIM To evaluate the incidence of lymph node metastasis(LNM) and its risk factors in patients with Siewert type Ⅰ and type Ⅱ pT1 adenocarcinomas.METHODS We enrolled 85 patients [69 men, 16 women; median age(range), 67(38-84) years] who had undergone esophagectomy or proximal gastrectomy for Siewert type Ⅰ and type Ⅱ pT1 adenocarcinomas. Predictive risk factors of LNM included age, sex, location of the tumor center, confirmed Barrett's esophageal adenocarcinoma, tumor size, macroscopic tumor type, pathology, invasion depth, presence of ulceration, and lymphovascular invasion. Multivariate logistic regression analysis was used to identify factors predicting LNM. We also evaluated the frequencies of LNM for Siewert type Ⅰ and type Ⅱ pT1 adenocarcinomas in meta-data analysis.RESULTS LNMs were found in 11 out of 85 patients(12.9%, 95%CI: 5.8-20.0). Only 1 of the 15 patients(6.6%, 95%CI: 0.0-19.2) who had a final diagnosis of pT1a adenocarcinoma had a positive LNM, whereas 10 ofthe 70 patients(14.2%, 95%CI: 6.0-22.4) with a final diagnosis of pT1b adenocarcinoma had positive LNM. Furthermore, only one of the 30 patients(3.3%, 95%CI: 0.0-9.7) with a tumor invasion depth within 500 μm from muscularis mucosae had positive LNM. Poor differentiation and lymphovascular invasion were independently associated with a risk of LNM. In meta-data analysis, 12 of the 355 patients(3.3%, 95%CI: 1.5-5.2) who had a final diagnosis of pT1a adenocarcinoma had a positive LNM, whereas 91 of the 438 patients(20.7%, 95%CI: 16.9-24.5) with a final diagnosis of pT1b adenocarcinoma had positive LNM. CONCLUSION We consider endoscopic submucosal dissection(ESD) is suitable for patients with Siewert type Ⅰ and type Ⅱ T1 a adenocarcinomas. For patients with T1b adenocarcinoma, especially invasion depth is within 500 μm from muscularis mucosae with no other risk factor for LNM, diagnostic ESD could be a treatment option according to the overall status of patients and the presence of comorbidities.
基金the Wu Jieping Medical Foundation(Nos.320.6750.2020-11-5 and 320.6750.2020-11-6)Key Research and Development(R&D)Projects of Shanxi Province(No.201703D321008).
文摘Objective:To identify risk factors for anastomotic leakage after gastrectomy in patients with Siewert type II/III adenocarcinoma(AEG)of the esophagogastric junction.Methods:This was a retrospective case-control study of 903 patients with Siewert type II/III AEG treated from January 2012 to January 2015 at the Shanxi Cancer Hospital in China.All patients underwent gastrectomy,and their clinical characteristics were analyzed to identify associations with anastomotic leakage.Independent risk factors were identified by binary logistic regression.The 2-year disease-free survival was calculated and compared between patients with anastomotic leakage and control patients.The study was approved by the Institutional Review Board of Shanxi Medical University(approval No.2014-09-39)on September 19,2014.Results:Out of the 903 patients were included in the study,80(8.86%,80/903)experienced anastomotic leakage.The mortality rate attributed to anastomotic leakage was 8.75%(7/80).Logistic regression analysis revealed that preoperative hypoalbuminemia(odds ratio(OR)=3.249,95%confidence interval(CI):1.569-6.725,P=0.002),type of reconstruction(OR=1.795,95%CI:1.026-3.142,P=0.040),and combined organ resection(OR=1.807,95%CI:1.069-3.055,P=0.027)were independent risk factors for anastomotic leakage.Conclusion:Preoperative hypoalbuminemia,type of reconstruction,and combined organ resection were identified as risk factors for anastomotic leakage in patients undergoing gastrectomy for Siewert type Ⅱ/Ⅲ AEG.
