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Safety and feasibility of colonoscopy in nonagenarians: A systematic review, meta-analysis and meta-regression analysis.
Colorectal Disease 2024 March 26
AIM: The aim of this work was to evaluate the safety and feasibility of performing colonoscopy in patients aged 90 years or over.
METHOD: In compliance with PRISMA statement standards, a systematic review of studies reporting the outcomes of colonoscopy in patients aged ≥90 years was conducted. A proportional meta-analysis model was constructed to quantify the risk of outcomes and a direct comparison meta-analysis model was constructed to compare outcomes between nonagenarians and patients aged between 50 and 89 years via random-effects models.
RESULTS: Seven studies enrolling 1304 patients (1342 colonoscopies) were included. Analyses showed that complications related to bowel preparation occurred in 0.7% (95% CI 0.1%-1.6%), procedural complications in 0.6% (0.00%-1.7%), 30-day complications in 1.5% (0.6%-2.7%), procedural mortality in 0.3% (0.0%-1.1%) and 30-day mortality in 1.1% (0.3%-2.2%). Adequate bowel preparation and colonoscopy completion were achieved in 81.3% (73.8%-87.9%) and 92.1% (86.7%-96.3%), respectively. No difference was found in bowel preparation-related complications [risk difference (RD) 0.00, p = 0.78], procedural complications (RD 0.00, p = 0.60), 30-day complications (RD 0.01, p = 0.20), procedural mortality (RD 0.00, p = 1.00) or 30-day mortality (RD 0.01, p = 0.34) between nonagenarians and patients aged between 50 and 89 years. The colorectal cancer detection rate was 14.3% (9.8%-19.5%), resulting in therapeutic intervention in 65.9% (54.5%-76.6%).
CONCLUSIONS: Although the evidence is limited to a selected group of nonagenarians, it may be fair to conclude that if a colonoscopy is indicated in a nonagenarian with good performance status (based on initial less-invasive investigations), the level 2 evidence supports its safety and feasibility. Age on its own should not be a reason for failing to offer colonoscopy to a nonagenarian.
METHOD: In compliance with PRISMA statement standards, a systematic review of studies reporting the outcomes of colonoscopy in patients aged ≥90 years was conducted. A proportional meta-analysis model was constructed to quantify the risk of outcomes and a direct comparison meta-analysis model was constructed to compare outcomes between nonagenarians and patients aged between 50 and 89 years via random-effects models.
RESULTS: Seven studies enrolling 1304 patients (1342 colonoscopies) were included. Analyses showed that complications related to bowel preparation occurred in 0.7% (95% CI 0.1%-1.6%), procedural complications in 0.6% (0.00%-1.7%), 30-day complications in 1.5% (0.6%-2.7%), procedural mortality in 0.3% (0.0%-1.1%) and 30-day mortality in 1.1% (0.3%-2.2%). Adequate bowel preparation and colonoscopy completion were achieved in 81.3% (73.8%-87.9%) and 92.1% (86.7%-96.3%), respectively. No difference was found in bowel preparation-related complications [risk difference (RD) 0.00, p = 0.78], procedural complications (RD 0.00, p = 0.60), 30-day complications (RD 0.01, p = 0.20), procedural mortality (RD 0.00, p = 1.00) or 30-day mortality (RD 0.01, p = 0.34) between nonagenarians and patients aged between 50 and 89 years. The colorectal cancer detection rate was 14.3% (9.8%-19.5%), resulting in therapeutic intervention in 65.9% (54.5%-76.6%).
CONCLUSIONS: Although the evidence is limited to a selected group of nonagenarians, it may be fair to conclude that if a colonoscopy is indicated in a nonagenarian with good performance status (based on initial less-invasive investigations), the level 2 evidence supports its safety and feasibility. Age on its own should not be a reason for failing to offer colonoscopy to a nonagenarian.
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