Cold versus hot snare endoscopic mucosal resection for large (>=15 mm) flat non-pedunculated colorectal polyps: a randomised controlled trial

Background and aims
Conventional hot snare endoscopic mucosal resection (H-EMR) is effective for the management of large (≥20 mm) non-pedunculated colon polyps (LNPCPs) however, electrocautery-related complications may incur significant morbidity. With a superior safety profile, cold snare EMR (C-EMR) of LNPCPs is an attractive alternative however evidence is lacking. We conducted a randomised trial to compare the efficacy and safety of C-EMR to H-EMR.

Methods
Flat, 15–50 mm adenomatous LNPCPs were prospectively enrolled and randomly assigned to C-EMR or H-EMR with margin thermal ablation at a single tertiary centre. The primary outcome was endoscopically visible and/or histologically confirmed recurrence at 6 months surveillance colonoscopy. Secondary outcomes were clinically significant post-EMR bleeding (CSPEB), delayed perforation and technical success.

Results
177 LNPCPs in 177 patients were randomised to C-EMR arm (n=87) or H-EMR (n=90). Treatment groups were equivalent for technical success 86/87 (98.9%) C-EMR versus H-EMR 90/90 (100%); p=0.31. Recurrence was significantly greater in C-EMR (16/87, 18.4% vs 1/90, 1.1%; relative risk (RR) 16.6, 95% CI 2.24 to 122; p

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Predictive factors associated with health-related quality of life in patients with colorectal cancer in Iran: a cross-sectional study

Objectives
This study aims to identify the primary factors influencing health-related quality of life (HRQoL) in patients with colorectal cancer (CRC), hypothesising that specific patient characteristics and clinical factors significantly impact HRQoL.

Design
This was a cross-sectional study conducted over 1 month, from 1 April 2022 to 1 May 2022.

Setting
The study was conducted in five hospitals in the northwest region of Iran, focusing on outpatient chemotherapy services.

Participants
A total of 251 patients diagnosed with colon and rectal cancer participated in the study. Inclusion criteria included a confirmed diagnosis by an oncologist, ability to communicate, willingness to participate and being aware of their diagnosis and treatment. Exclusion criteria were the presence of other chronic diseases, cognitive disorders, known mental disorders and unwillingness to participate.

Interventions
No interventions were applied as this was an observational study.

Primary and secondary outcome measures
The primary outcome was the HRQoL of patients with CRC, measured using a standardised SF-36 (36-Item Short Form Health Survey) questionnaire. Secondary outcomes included the impact of demographic and clinical factors on HRQoL.

Results
The total score of HRQoL in these patients is 47.22±16.78, which indicates that HRQoL is disturbed in these patients. Also, the results of the stepwise multiple regression revealed that among all the participants’ characteristics considered, seven factors: not having another disease besides cancer (p

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