scholarly journals Evaluation of postgastrectomy symptoms and daily lives of small remnant distal gastrectomy for upper‐third gastric cancer using a large‐scale questionnaire survey

2021 ◽  
Author(s):  
Souya Nunobe ◽  
Masazumi Takahashi ◽  
Shinichi Kinami ◽  
Junya Fujita ◽  
Takahisa Suzuki ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Questionnaire Survey ◽  
Large Scale ◽  
Distal Gastrectomy ◽  
Daily Lives ◽  
Upper Third

scholarly journals Prognosis of Patients With Gastric Cancer Who Underwent Proximal Gastrectomy

2012 ◽  
Vol 97 (3) ◽  
pp. 275-279 ◽  
Author(s):  
Masahide Ikeguchi ◽  
Abdul Kader ◽  
Seigo Takaya ◽  
Youji Fukumoto ◽  
Tomohiro Osaki ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Early Gastric Cancer ◽  
Lymph Nodes ◽  
Total Gastrectomy ◽  
Proximal Gastrectomy ◽  
Survival Rates ◽  
Daily Lives ◽  
Multiple Cancers ◽  
Upper Third ◽  
Disease Specific

Abstract Proximal gastrectomy (PG) has been introduced for patients who are preoperatively diagnosed with early gastric cancer located in the upper third of the stomach. In the present study, we compared the prognosis of patients who underwent PG with that of patients who underwent total gastrectomy (TG). Between 1997 and 2006, 51 patients were diagnosed with early gastric cancer located in the upper third of the stomach and underwent PG. In the same period, 35 patients were diagnosed with early gastric cancer and underwent TG. Of these, in 24 patients, the cancer was localized in the middle to upper part of the stomach, and 11 patients had multiple cancers. We compared the clinicopathologic differences and prognoses between the two groups. Significantly fewer lymph nodes were dissected in the PG group (mean, 18.2) than in the TG group (mean, 36.6;P < 0.001). Complications were detected in 17.6% of patients in the PG group and in 14.3% of patients in the TG group, which was not significant (P = 0.678). The overall and disease-specific 5-year survival rates in the 51 patients who underwent PG (88.7% and 97.1%, respectively) were not different from those in the 35 patients who underwent TG (87.6% and 93.4%; P = 0.971 and P = 0.553; respectively). These findings indicate that PG can be performed safely and may have various advantages compared with TG in terms of patients' daily lives.

Combustion Driven by Fragment-based Ab Initio Molecular Dynamics Simulation

2019 ◽  
Author(s):  
Liqun Cao ◽  
Jinzhe Zeng ◽  
Mingyuan Xu ◽  
Chih-Hao Chin ◽  
Tong Zhu ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Ab Initio ◽  
Large Scale ◽  
Methane Combustion ◽  
Combustion Method ◽  
Dynamics Simulation ◽  
Ab Initio Molecular Dynamics ◽  
Computational Time ◽  
Combustion Mechanism ◽  
Daily Lives

Combustion is a kind of important reaction that affects people's daily lives and the development of aerospace. Exploring the reaction mechanism contributes to the understanding of combustion and the more efficient use of fuels. Ab initio quantum mechanical (QM) calculation is precise but limited by its computational time for large-scale systems. In order to carry out reactive molecular dynamics (MD) simulation for combustion accurately and quickly, we develop the MFCC-combustion method in this study, which calculates the interaction between atoms using QM method at the level of MN15/6-31G(d). Each molecule in systems is treated as a fragment, and when the distance between any two atoms in different molecules is greater than 3.5 Å, a new fragment involved two molecules is produced in order to consider the two-body interaction. The deviations of MFCC-combustion from full system calculations are within a few kcal/mol, and the result clearly shows that the calculated energies of the different systems using MFCC-combustion are close to converging after the distance thresholds are larger than 3.5 Å for the two-body QM interactions. The methane combustion was studied with the MFCC-combustion method to explore the combustion mechanism of the methane-oxygen system.

Evaluation of Hand-Assisted Laparoscopic Distal Gastrectomy for Patients with Early Gastric Cancer

2003 ◽  
Vol 52 (4) ◽  
pp. 717-725
Author(s):  
Yoshibumi NIITSUMA ◽  
Tsuneo KAWASAKI ◽  
Hajime TSUKUI ◽  
Yoshinobu TAKAHASHI ◽  
Masamitsu MAEDA ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Early Gastric Cancer ◽  
Distal Gastrectomy ◽  
Laparoscopic Distal Gastrectomy

scholarly journals Tu1497 NATIONWIDE SURVEY OF HELICOBACTER PYLORI ANTIBIOTIC RESISTANCE IN HIGH PREVALENCE OF GASTRIC CANCER COUNTRY (BHUTAN): A LARGE-SCALE COMMUNITY-BASED STUDY

2020 ◽  
Vol 91 (6) ◽  
pp. AB591-AB592
Author(s):  
Ratha-Korn Vilaichone ◽  
Natsuda Aumpan ◽  
Tomohisa Uchida ◽  
Thawee Ratanachu-ek ◽  
Lotay Tshering ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Helicobacter Pylori ◽  
Antibiotic Resistance ◽  
Large Scale ◽  
Nationwide Survey ◽  
Community Based ◽  
High Prevalence

scholarly journals Proximal gastrectomy with gastric tube reconstruction or jejunal interposition reconstruction in upper-third gastric cancer: which offers better short-term surgical outcomes?

BMC Surgery ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Zhiguo Li ◽  
Yan Ma ◽  
Guiting Liu ◽  
Ming Fang ◽  
Yingwei Xue
Keyword(s):  
Gastric Cancer ◽  
Reflux Esophagitis ◽  
Surgical Outcomes ◽  
Gastric Tube ◽  
Proximal Gastrectomy ◽  
Jejunal Interposition ◽  
Short Term ◽  
Jejunal Interposition Reconstruction ◽  
Upper Third ◽  
Gastric Tube Reconstruction

Abstract Objective Proximal gastrectomy acts as a function-preserving operation for upper-third gastric cancer. The aim of this study was to compare the short-term surgical outcomes between proximal gastrectomy with gastric tube reconstruction and proximal gastrectomy with jejunal interposition reconstruction in upper-third gastric cancer. Methods A retrospective review of 301 patients who underwent proximal gastrectomy with jejunal interposition (JI) or gastric tube (GT) at Harbin Medical University Cancer Hospital between June 2007 and December 2016 was performed. The Gastrointestinal Symptom Rating Scale (GSRS) and Visick grade were used to evaluate postgastrectomy syndromes. Gastrointestinal fiberoscopy was used to evaluate the prevalence and severity of reflux esophagitis based on the Los Angeles (LA) classification system. Results The JI group had a longer operation time than the GT group (220 ± 52 vs 182 ± 50 min), but no significant difference in blood loss was noted. Compared to the GT group, the Visick grade and GSRS score were significantly higher. Reflux esophagitis was significantly increased in the GT group compared with the JI group. Conclusion Proximal gastrectomy is well tolerated with excellent short-term outcomes in patients with upper-third gastric cancer. Compared with GT construction, JI construction has clear functional advantages and may provide better quality of life for patients with upper-third gastric cancer.

scholarly journals Laparoscopic proximal gastrectomy with double-tract reconstruction for upper third gastric cancer

BMC Surgery ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Shuo-meng Xiao ◽  
Ping Zhao ◽  
Zhi Ding ◽  
Rui Xu ◽  
Chao Yang ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Proximal Gastrectomy ◽  
Operation Time ◽  
Nutrition Status ◽  
Proximal Gastric Cancer ◽  
Double Tract Reconstruction ◽  
Significant Difference ◽  
Laparoscopic Proximal Gastrectomy ◽  
Gastric Cancer Patients ◽  
Upper Third

Abstract Background Proximal gastrectomy with double-tract reconstruction (DTR) has been used for upper third gastric cancer as a function-preserving procedure. However, the safety and feasibility of laparoscopic proximal gastrectomy (LPG) with DTR remain uncertain. This study compared open proximal gastrectomy (OPG) with DTR and LPG with DTR for proximal gastric cancer. Methods Sixty-four patients who had undergone OPG with DTR and forty-six patients who had undergone LPG with DTR were enrolled in this case–control study. The clinical characteristics, surgical outcomes and postoperative nutrition index were analysed retrospectively. Results The operation time was significantly longer in the LGP group than in the OPG group (258.3 min vs 205.8 min; p = 0.00). However, the time to first flatus and postoperative hospital stay were shorter in the LPG group [4.0 days vs 3.5 days (p = 0.00) and 10.6 days vs 9.2 days (p = 0.001), respectively]. No significant difference was found between the two groups in the number of retrieved lymph nodes, complications or reflux oesophagitis. The nutrition status was assessed using the haemoglobin, albumin, prealbumin and weight levels from pre-operation to six months after surgery. No significant difference was found between the groups. Conclusion LPG with DTR can be safely performed for proximal gastric cancer patients by experienced surgeons.

scholarly journals Network isolators inhibit failure spreading in complex networks

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Franz Kaiser ◽  
Vito Latora ◽  
Dirk Witthaut
Keyword(s):  
Complex Networks ◽  
Large Scale ◽  
Power Transmission ◽  
Power Grids ◽  
Cascading Failure ◽  
Critical Infrastructures ◽  
Daily Lives ◽  
Supply Networks ◽  
Water Transmission ◽  
Complete Collapse

AbstractIn our daily lives, we rely on the proper functioning of supply networks, from power grids to water transmission systems. A single failure in these critical infrastructures can lead to a complete collapse through a cascading failure mechanism. Counteracting strategies are thus heavily sought after. In this article, we introduce a general framework to analyse the spreading of failures in complex networks and demostrate that not only decreasing but also increasing the connectivity of the network can be an effective method to contain damages. We rigorously prove the existence of certain subgraphs, called network isolators, that can completely inhibit any failure spreading, and we show how to create such isolators in synthetic and real-world networks. The addition of selected links can thus prevent large scale outages as demonstrated for power transmission grids.

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