Publications by authors named "Qi-Yuan Qin"

The synergistic effect of combining immune checkpoint inhibitors (ICIs) with neoadjuvant chemo(radio)therapy (nCRT) in colorectal cancer is still limited. We aimed to understand the impact of nCRT on the tumor microenvironment and to explore favorable immune markers of this combination. Herein, we investigated the expression of cytotoxic T lymphocyte-associated antigen 4 (CTLA-4), CD86, CD4, and CD8 after nCRT and its association with clinicopathological characteristics.

View Article and Find Full Text PDF

Background: Neoadjuvant chemoradiotherapy (nCRT) is associated with post-operative anastomotic complications in rectal-cancer patients. Anastomosis involving at least one non-irradiated margin reportedly significantly reduces the risk of post-operative anastomotic complications in radiation enteritis. However, the exact scope of radiotherapy on the remaining sigmoid colon remains unknown.

View Article and Find Full Text PDF

Background: Severe chronic radiation proctopathy (CRP) is difficult to treat.

Aim: To evaluate the efficacy of colostomy and stoma reversal for CRP.

Methods: To assess the efficacy of colostomy in CRP, patients with severe hemorrhagic CRP who underwent colostomy or conservative treatment were enrolled.

View Article and Find Full Text PDF

Objective: The aim of this study was to evaluate the effect of the interval between CRT and surgery on radiation proctitis, the pathologic response, and postoperative morbidity.

Methods: This was a cohort study from a phase III, randomized controlled trial (FOWARC study, NCT01211210). Data were retrieved from the leading center of the trial.

View Article and Find Full Text PDF

Background: The self-expandable metal stent is used as a bridge to surgery in the treatment of acute malignant colorectal obstruction (AMCO). However, recent studies have shown inferior long-term outcomes and increased risk of tumor dissemination after stent placement. In addition, the optimal interval between stent placement and surgery is not clear.

View Article and Find Full Text PDF

Aim: To assess the efficacy and safety of diverting colostomy in treating severe hemorrhagic chronic radiation proctitis (CRP).

Methods: Patients with severe hemorrhagic CRP who were admitted from 2008 to 2014 were enrolled into this study. All CRP patients were diagnosed by a combination of pelvic radiation history, clinical rectal bleeding, and endoscopic findings.

View Article and Find Full Text PDF

Radiation proctitis is a common complication after radiotherapy for pelvic malignant tumors. This study was conducted to assess the efficacy of novel almagate enemas in hemorrhagic chronic radiation proctitis (CRP) and evaluate risk factors related to rectal deep ulcer or fistula secondary to CRP. All patients underwent a colonoscopy to confirm the diagnosis of CRP and symptoms were graded.

View Article and Find Full Text PDF

Aim: To assess the efficacy and safety of a modified topical formalin irrigation method in refractory hemorrhagic chronic radiation proctitis (CRP).

Methods: Patients with CRP who did not respond to previous medical treatments and presented with grade II-III rectal bleeding according to the Common Terminology Criteria for Adverse Events were enrolled. Patients with anorectal strictures, deep ulcerations, and fistulas were excluded.

View Article and Find Full Text PDF

Background: BRAF mutation has been investigated as a prognostic factor in metastatic colorectal cancer (mCRC) undergoing anti-EGFR monoclonal antibodies (moAbs), but current results are still inconclusive. The aim of this meta-analysis was to evaluate the relationship between BRAF mutation status and the prognosis of mCRC patients treated with moAbs.

Methods: Eligible studies were identified by systematically searching Pubmed, the Cochrane Library, Web of Knowledge, and OVID.

View Article and Find Full Text PDF

Synopsis of recent research by authors named "Qi-Yuan Qin"

  • - Qi-Yuan Qin's recent research primarily focuses on the intersection of colorectal cancer treatment and the effects of neoadjuvant chemoradiotherapy (nCRT), particularly regarding immune responses and complications arising from this approach.
  • - Studies by Qin explore the expression of immune markers such as CTLA-4 and CD86, aiming to identify favorable indicators for the effectiveness of combining immune checkpoint inhibitors with nCRT.
  • - Additionally, Qin investigates post-operative complications and management strategies in patients with chronic radiation proctopathy, emphasizing surgical interventions like diverting colostomy and new treatment modalities to address severe cases.

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_session5aimj3pf71ujuhl204pggs9an25fmjuq): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once