Diverticulosis of the colon is a common condition in Western countries and most patients will remain asymptomatic, but some will present with symptoms of acute diverticulitis or bleeding. Our understanding of diverticulosis is evolving but is mostly derived from diverticulosis affecting the left-sided colon. In contrast, right-sided colonic diverticulosis (RCD) is more commonly seen in Asian countries but is much less common overall. Based on the marked differences in epidemiology, it is commonly thought that these are 2 distinct disease processes. A review of the literature describing the epidemiology and etiology of RCD was performed, with a comparison to the current understanding of left-sided diverticulosis. RCD is becoming increasingly common. The epidemiology of RCD shows it to be a mostly acquired condition, and not congenital as previously thought. Many factors in the etiology of RCD are similar to that seen in left-sided diverticulosis, with a few variations. It is therefore likely that most cases of RCD represent the same disease process that is seen in the left colon.

Diverticulosis of the colon is a common condition in Western countries and most patients will remain asymptomatic, but some will present with symptoms of acute diverticulitis or bleeding. Our understanding of diverticulosis is evolving but is mostly derived from diverticulosis affecting the left-sided colon. In contrast, right-sided colonic diverticulosis (RCD) is more commonly seen in Asian countries but is much less common overall. Based on the marked differences in epidemiology, it is commonly thought that these are 2 distinct disease processes. A review of the literature describing the epidemiology and etiology of RCD was performed, with a comparison to the current understanding of left-sided diverticulosis. RCD is becoming increasingly common. The epidemiology of RCD shows it to be a mostly acquired condition, and not congenital as previously thought. Many factors in the etiology of RCD are similar to that seen in left-sided diverticulosis, with a few variations. It is therefore likely that most cases of RCD represent the same disease process that is seen in the left colon.

Carcinoembryonic antigen (CEA) is not normally produced in significant quantities after birth but is elevated in colorectal cancer. The aim of this review was to define the current role of CEA and how best to investigate patients with elevated CEA levels. A systematic review of CEA was performed, in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Studies were identified from PubMed, Cochrane library, and controlled trials registers. We identified 2,712 papers of which 34 were relevant. Analysis of these papers found higher preoperative CEA levels were associated with advanced or metastatic disease and thus poorer prognosis. Postoperatively, failure of CEA to return to normal was found to be indicative of residual or recurrent disease. However, measurement of CEA levels alone was not sufficient to improve survival rates. Two algorithms are proposed to guide investigation of patients with elevated CEA: one for patients with elevated CEA after CRC resection, and another for patients with de novo elevated CEA. CEA measurement has an important role in the investigation, management and follow-up of patients with colorectal cancer.
Carcinoembryonic Antigen ; Colorectal Neoplasms ; Follow-Up Studies ; Humans ; Parturition ; Prognosis ; Recurrence ; Survival Rate

Conflict of Interest ; Disclosure ; standards ; Editorial Policies ; Periodicals as Topic ; standards ; Records as Topic ; standards

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Clinical Trials as Topic ; Humans ; Information Dissemination ; ethics ; methods ; International Cooperation

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OBJECTIVE: This study examined whether a 4-week group-based mindfulness intervention would be superior in reducing psychological distress in colorectal cancer (CRC) patients compared to a psychoeducation and cognitive behavioural skills learning support active control group. METHODS: Patients with CRC were randomized via Computerised Permuted Block Randomisation to mindfulness or active control groups (2-h weekly sessions over 4 weeks). Outcomes were measured pre-intervention, and 8 weeks and 6 months post-baseline. The primary outcome was psychological distress measured by the Hospital Anxiety and Depression Scale. Secondary outcomes were generic quality of life (QoL), disease specific QoL, mindfulness, and intervention credibility and acceptability. RESULTS: Sixty-eight participants were randomized to mindfulness (n=35) or active control group (n=33). Uptake of potentially eligible patients consenting was low (28.0%) and the dropout rate was 33.8%. Depression scores were reduced in both groups at week 8 (P=0.020). Control participants had greater improvement in generic mental QoL scores at week 8 than mindfulness (P=0.023). In disease specific QoL, there was reduction in impotence symptom in the mindfulness group (P=0.022) and reduction in faecal incontinence in the control group (P=0.019). The embarrassment symptom had a significantly lower increase in the mindfulness group at week 8 compared to the control group (P=0.009). Both groups rated the treatments as credible and acceptable. CONCLUSIONS Mindfulness was not superior to the active control group in terms of alleviating psychological distress but both treatments were associated with some improvements in depression. There was low uptake of both interventions. (Trial registration number: ACTRN12616001033437).
Male ; Humans ; Quality of Life ; Mindfulness ; Colorectal Neoplasms/therapy*