Relationship between serum iron, zinc, calcium, and HIF-1a-comparative analysis of 2 regions and 4 ethnic groups in China.

Background: Altitude illness has serious effects on individuals who are not adequately acclimatized to high-altitude areas and may even lead to death. However, the individualized mechanisms of onset and preventive measures are not fully elucidated at present, especially the relationship between altitude illness and elements, which requires further in-depth research.

Methods: Fresh serum samples were collected from individuals who underwent health examinations at the two hospitals in Xining and Sanya between November 2021 and December 2021.

Risk Factors and Clinical Outcomes of 54 Cases of Rectal Neuroendocrine Tumors with Incomplete Resection: A Retrospective Single-Center Study.

Objective: The present study aimed to analyze the risk factors and clinical outcomes of the incomplete endoscopic resection of rectal neuroendocrine tumors (rNETs).

Methods: This study retrospectively analyzed the cases of 428 patients with rNETs who had undergone endoscopic treatment in the Department of Gastroenterology at the PLA General Hospital, China, between January 2010 and September 2019.

Results: Of the 428 patients with rNETs, 266 were men (62.

Endoscopic versus surgical resection in the management of gastric schwannomas.

Background And Aims: Gastric schwannoma (GS) is not well clinically recognized and surgical resection (SR) remains the mainstay of treatment. Recently, endoscopic resection (ER) appears to be a safe and effective alternative. However, its comparative outcomes with SR is lacking.

Endoscopic submucosal excavation and endoscopic full-thickness resection for gastric schwannoma: five-year experience from a large tertiary center in China.

Background And Aims: Endoscopic resection (ER) is an effective and safe method for gastric submucosal tumors, mostly composed of gastrointestinal stromal tumors and leiomyomas. The role of ER in gastric schwannoma (GS) has rarely been described. Our aim was to evaluate the efficacy and safety of ER for GS.

Submucosal tunneling endoscopic resection: An effective and safe therapy for upper gastrointestinal submucosal tumors originating from the muscularis propria layer.

Aim: To evaluate the effectiveness and safety of submucosal tunneling endoscopic resection (STER) and compare its outcomes in esophageal and cardial submucosal tumors (SMTs) of the muscularis propria (MP) layer.

Methods: From May 2012 to November 2017, 173 consecutive patients with upper gastrointestinal (GI) SMTs of the MP layer underwent STER. Overall, 165 patients were included, and 8 were excluded.

Diagnosis and comprehensive treatment of esophageal leiomyoma: clinical analysis of 77 patients.

To investigate the diagnosis and comprehensive treatment of esophageal leiomyoma. The clinical data of 77 cases of esophageal leiomyoma patients were analyzed between 2005 and 2013. Its diagnosis, treatment and prognosis were analyzed.

Changes in the spectrum of gastric polyps in the Chinese population.

Aim: To evaluate the change in spectrum of gastric polyps in the Chinese population in the past ten years.

Methods: A total of 157902 consecutive patients undergoing esophagogastroduodenoscopy (EGD) from 2004 to 2013 in a tertiary hospital were retrospectively reviewed using an EGD database. Endoscopic records of 4043 patients diagnosed with gastric polyps were recalled for analysis.

Detection of superficial esophageal squamous cell neoplasia by chromoendoscopy-guided confocal laser endomicroscopy.

Aim: To evaluate the diagnostic potential of Lugol's chromoendoscopy-guided confocal laser endomicroscopy (CLE) in detecting superficial esophageal squamous cell neoplasia (ESCN).

Methods: Between December 2008 and September 2010, a total of 52 patients were enrolled at the Chinese PLA General Hospital in Beijing, China. First, Lugol's chromoendoscopy-guided CLE was performed in these patients and the CLE in vivo histological diagnosis was recorded.

Associated risk factor analysis for positive resection margins after endoscopic submucosal dissection in early-stage gastric cancer.

Purpose: To investigate the associated risk factors and the prognostic impact of positive resection margins after endoscopic submucosal dissection (ESD) of early-stage gastric cancer.

Methods: A retrospective analysis of prospectively collected data was performed on 319 consecutive lesions in 316 patients who underwent ESD. Age, gender, surgeons, lesion location, maximum diameter of resected specimens, macroscopic type, depth of tumor invasion and tumor differentiation were evaluated as potential risk factors.

Endoscopic mucosal resection with circumferential incision for treatment of rectal carcinoid tumours.

Background: Endoscopic mucosal resection (EMR) is simple and quick and has low complication rates. However, the disadvantage of local recurrence or remnant rate limits the use of this technique. We aimed to analyse the outcomes of conventional EMR and EMR with circumferential incision (CIEMR), a simplified modification of EMR, in the endoscopic treatment of rectal carcinoid tumours.

Current application situation of gastrointestinal endoscopy in China.

Aim: To study the current application situation of gastrointestinal (GI) endoscopy in mainland China.

Methods: From 12 August, 2011 to 15 February, 2012, draft questionnaires were sent by e-mail to 289 hospital-based GI endoscopy units, including units with three levels (provincial, prefecture and county level) in mainland China. All the surveyed GI endoscopy units were state-owned and hospital-based.

Predictive factors of endoscopic submucosal dissection procedure time for gastric superficial neoplasia.

Aim: To identify the determinants of endoscopic submucosal dissection (ESD) operation time.

Methods: This investigation was conducted as a single-center, prospective study in which ESD was performed by the same endoscopist at the Chinese PLA General Hospital. A total of 173 patients underwent ESD operations performed by Dr.

Diagnosis of gastric intraepithelial neoplasia by narrow-band imaging and confocal laser endomicroscopy.

Aim: To evaluate the diagnosis of different differentiated gastric intraepithelial neoplasia (IN) by magnification endoscopy combined with narrow-band imaging (ME-NBI) and confocal laser endomicroscopy (CLE).

Methods: Eligible patients with suspected gastric IN lesions previously diagnosed by endoscopy in secondary hospitals and scheduled for further diagnosis and treatment were recruited for this study. Excluded from the study were patients who had liver cirrhosis, impaired renal function, acute gastrointestinal (GI) bleeding, coagulopathy, esophageal varices, jaundice, and GI post-surgery.

[The value of esophageal intrapapillary capillary loop visualized by magnifying narrow-band imaging endoscopy in diagnosing esophageal mucosal pathology].

Objective: To investigate the diagnostic potential of magnifying narrow-band imaging endoscopy (NBI-ME) for different intrapapillary capillary loop (IPCL) for the diagnosis of esophageal lesion.

Methods: Patients with abnormal esophageal mucosa found by white light gastroscopy in digestive endoscopy center, Chinese PLA General Hospital during the period of November 2009 to November 2010 were enrolled in this study. IPCL was observed and divided into different types by NBI-ME.

Magnifying endoscopy with narrow-band imaging may improve diagnostic accuracy of differentiated gastric intraepithelial neoplasia: a feasibility study.

Background: Magnifying narrow-band imaging has enabled observation of the mucosal and vascular patterns of gastrointestinal lesions. This study investigated the potential value of magnifying endoscopy with narrow-band imaging for the classification of gastric intraepithelial neoplasia.

Methods: Seventy-six patients with gastric intraepithelial neoplasia (82 lesions) at People's Liberation Army General Hospital from December 2009 to November 2010 were analyzed.