Background: Laparoscopic gastrectomy lacks hand-direct tactile sense and has a limited surgical field compared to laparotomy. Apart from textbook classification, there are anatomical variations in the gastric arteries. Laparoscopic gastrectomy presents technical difficulties and necessitates a more comprehensive comprehension of regional anatomy than open surgical procedures.
View Article and Find Full Text PDFBackground: Owing to the lack of evidence-based medical studies with large sample sizes, the surgical approach for the radical resection of rectal neuroendocrine tumors remains controversial.
Methods: We retrospectively collected the medical records of patients with rectal neuroendocrine tumors who underwent radical resection at 17 large tertiary care hospitals in China between January 1, 2010, and April 30, 2022. All patients were divided into laparoscopic and open surgery groups.
Background: The prognostic nutritional index (PNI), alkaline phosphatase (ALP), and lymph node ratio (LNR) are reportedly related to prognosis. The aim of this study was to elucidate the clinical importance of the LNR and hematological parameters in patients with high grade rectal neuroendocrine neoplasms (HG-RNENs) who were undergoing radical resection.
Methods: We reviewed the medical records of patients with HG-RNENs from 17 large-scale medical centers in China (January 1, 2010-April 30, 2022).
To prepare silica/rubber composites for low roll resistance tires, a novel strategy was proposed in this study, in which autonomous monodisperse silica (AS) was prepared and modified using 3-mercaptopropyloxy-methoxyl-bis(nonane-pentaethoxy) siloxane (Si747), after which silica/emulsion styrene butadiene rubber (ESBR) master batches were produced using the latex compounding technique. Meanwhile, the commercial precipitated silica (PS) was introduced as a control. In this study, the effects of amount of Si747 and pH value on the properties of the silica/ESBR composites were systematically analyzed.
View Article and Find Full Text PDFPurpose: Rectal adenoma, a pre-cancerous lesion, is one of the indications for transanal endoscopic microsurgery (TEM). TEM has its unique advantages in the treatment of rectal adenomas. However, there are few reports on the therapeutic effects of large rectal adenoma (LRA).
View Article and Find Full Text PDFBackground: Laparoscopic low anterior rectal resection is the most widely used surgical procedure for middle and low rectal cancer. The aim of this study was to investigate the feasibility and safety of the extracorporeal placement of the anvil in preserving the left colic artery in laparoscopic low anterior rectal resection without auxiliary incisions for transanal specimen retrieval in this research.
Methods: Clinical data and follow-up data of patients undergoing laparoscopic low anterior rectal resection from January 2017 to October 2020 were collected.
Background: Gastric cancer, which is the fifth most common malignancy and the third most common cause of cancer-related death, is particularly predominant in East Asian countries, such as China, Japan and Korea. It is a serious global health issue that causes a heavy financial burden for the government and family. To our knowledge, there are few reports of multicentre randomized controlled trials on the utilization of CT angiography (CTA) for patients who are histologically diagnosed with gastric cancer before surgery.
View Article and Find Full Text PDFBackground: This study aims to investigate the clinical significance and prognostic value of mucinous component (MC) in colorectal adenocarcinoma (AC).
Methods: Patients with colorectal AC and AC with MC (ACMC) (1-100%) underwent surgical resection between January 2007 and February 2018 were retrospectively reviewed. Propensity score matching (PSM) was performed according to a 1:1 ratio.
Background: The safety and feasibility of laparoscopic surgery for the management of rectal gastrointestinal stromal tumors are unknown.
Objective: This study aimed to compare the surgical and oncologic results of laparoscopic versus open surgery for the treatment of rectal gastrointestinal stromal tumors.
Design: This was a retrospective multicenter propensity score-matched study to minimize heterogeneity between groups and focus on the difference between surgery strategies.
Aim: Rectal stenosis is a relatively rare complication after transanal endoscopic microsurgery (TEM). This study aims to identify the predictive parameters for stenosis and the application of TEM in the treatment.
Method: The clinical data of patients who underwent TEM for rectal adenoma and early cancer from 2008 to 2019 were retrospectively reviewed.
Blocking the expression of programmed cell death ligand 1 (PD-L1) is a promising approach for the treatment of colon cancer. The binding of PD-L1 to its receptor programmed cell death 1 (PD-1) on immune cells leads to the apoptosis of activated T cells and causes immune escape. However, there is a limited number of patients with colon cancer that can benefit from the inhibition of PD-L1, and the regulation of PD-L1 expression is poorly understood in colon cancer.
View Article and Find Full Text PDFBackground And Objectives: This study aimed to characterize the efficacy of neoadjuvant imatinib in rectal gastrointestinal stromal tumors (GISTs) and the prognostic characteristics of patients after surgery.
Methods: Patients with rectal GISTs who received neoadjuvant imatinib between 2000 and 2019 were selected from 11 large-scale tertiary hospitals in China. The best response to neoadjuvant imatinib was assessed.
Objective: This study aimed to compare the effects of ERAS and conventional programs on short-term outcomes after LDG.
Summary Of Background Data: Currently, the ERAS program is broadly applied in surgical areas. Although several benefits of LDG with the ERAS program have been covered, high-level evidence is still limited, specifically in advanced gastric cancer.
Background: The surgical approaches and resection extent for rectal gastrointestinal stromal tumors (GISTs) are controversial due to the low incidence of this disease. A multicenter retrospective cohort study was conducted to compare the postoperative and oncologic outcomes of local excision (LE) and radical resection (RR) in patients with low rectal GIST.
Patients And Methods: The medical records of rectal GIST patients from 11 large-scale medical centers in China (January 2000-December 2019) were reviewed.
J Laparoendosc Adv Surg Tech A
September 2021
Radical surgery is recommended for high-risk pathological stage T1 (pT1) or pT2 rectal cancer after transanal endoscopic microsurgery (TEM). However, in clinical practice, many patients may unfit or decline radical surgery. In recent years, adjuvant chemoradiotherapy (CRT) after TEM was considered as an alternative to radical surgery for these patients.
View Article and Find Full Text PDFBackground: The incidence of gastric cancer in East Asia is much higher than the international average. Therefore, improving the prognosis of patients and establishing effective clinical pathways are important topics for the prevention and treatment of gastric cancer. At present, the enhanced recovery after surgery (ERAS) pathway is widely used in the field of gastric surgery.
View Article and Find Full Text PDFBackground: Inflammation-related parameters have been revealed to have prognostic value in multiple caners. However, the significance of some inflammation-related parameters, including the peripheral blood neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), lymphocyte-to-monocyte ratio (LMR) and prognostic nutritional index (PNI), remains controversial in T1-2 rectal cancer (RC).
Methods: Clinical data of 154 T1-2 RC patients were retrospectively reviewed.
Background: Most previous risk-prediction models for gastrointestinal stromal tumors (GISTs) were based on Western populations. In the current study, we collected data from 23 hospitals in Shandong Province, China, and used the data to examine prognostic factors in Chinese patients and establish a new recurrence-free survival (RFS) prediction model.
Methods: Records were analyzed for 5285 GIST patients.
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View Article and Find Full Text PDFColon cancer is a detrimental neoplasm of the digestive tract. MicroRNAs (miRNAs) as central regulators have been discovered in colon cancer. Nonetheless, the impact of miR-204-3p on colon cancer remains indistinct.
View Article and Find Full Text PDFThe lungs are the second most common site of metastasis for colorectal cancer (CRC) after the liver. Rectal cancer is associated with a higher incidence of lung metastases compared to colon cancer. In China, the proportion of rectal cancer cases is around 50%, much higher than that in Western countries (nearly 30%).
View Article and Find Full Text PDFZhonghua Wei Chang Wai Ke Za Zhi
September 2017
Objective: To summarize the treatment status of gastric gastrointestinal stromal tumor (GIST) in Shandong province,by analyzing the clinicopathological features and prognostic factors.
Methods: Clinicopathological and follow-up data of 1 165 patients with gastric GIST between January 2000 and December 2013 from 23 tertiary referral hospitals in Shandong Province were collected to establish a database. The risk stratification of all cases was performed according to the National Institutes of Health(NIH) criteria proposed in 2008.