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Laparoscopic approach is associated with lower 30-day mortality in nonagenarians undergoing colorectal resectionSurgery for colorectal cancer in patients over 90 shows results

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Key Takeaway
Note that laparoscopic approach is associated with lower 30-day mortality in nonagenarians with colorectal cancer.

This meta-analysis evaluates the outcomes of colorectal resection in nonagenarians (patients aged 90 years and older). The study included 5276 patients to assess 30-day mortality and complications following surgical intervention for colorectal cancer.

Key findings indicate that 30-day mortality was 4.5% (95% CI: 1.8-7.3) overall, but significantly higher in emergency settings at 18.8% (95% CI: 1.7-36%). The analysis showed that a laparoscopic approach was associated with a lower risk of 30-day mortality (coefficient: -0.121, P = 0.024), whereas an open approach was associated with an increased risk (coefficient: 0.119, P = 0.031). Other factors, including male sex, ASA status, and specific resection sites (colon vs. rectal), did not significantly affect 30-day mortality.

Clinical outcomes included a 11.3% (95% CI: 2.1-20.6) rate of Clavien-Dindo grade 3 or higher complications and a 2.2% (95% CI: 0.8-3.6) reoperation rate. The mean length of hospital stay was 14.7 days (95% CI: 13.6-15.8).

The authors note the evidence is of low certainty. While resection may be safe for nonagenarians with good performance status, the risk is significantly higher in emergency settings. These findings suggest that surgical approach and setting are important factors in perioperative outcomes for this elderly population.

How this fits prior evidence

This meta-analysis addresses a gap in surgical outcomes for the elderly by specifically evaluating nonagenarians undergoing colorectal resection. While prior evidence noted that machine learning models can predict complications in colorectal cancer, this study provides specific data on surgical approach and setting. It confirms that laparoscopic techniques are associated with lower mortality compared to open approaches in this population, and highlights the significantly higher risk associated with emergency surgeries.

When a patient over 90 years old faces colorectal cancer, the decision to operate is a heavy one. Families and doctors must weigh the risks of surgery against the goals of care. New data looking at over 5,000 patients provides a clearer picture of what to expect during the first 30 days after surgery.

The data shows that for elective surgeries, the 30-day mortality rate was 2.5%. However, the risk jumped significantly to 18.8% for patients undergoing emergency surgery. The study also found that a laparoscopic approach, which uses small incisions, was linked to a lower risk of death compared to an open surgical approach.

While the results suggest that surgery can be safe for fit patients in their 90s, the evidence is not yet certain. It is important to remember that emergency situations and open surgeries carry higher risks for this age group. Patients and families should talk to their doctors about the specific risks of emergency versus elective procedures.

What this means for you:
Surgery for colorectal cancer in patients over 90 is safer in elective settings than in emergency situations.

Common questions

Is surgery safe for patients over 90 with colorectal cancer?

Surgery can be safe for patients over 90 who are in good shape before the operation. However, the risk of death within 30 days is much higher in emergency surgeries (18.8%) compared to elective surgeries (2.5%).

What is the difference between emergency and elective surgery for this age group?

The data shows a significant difference in outcomes. Patients undergoing elective surgery had a 30-day mortality rate of 2.5%. In contrast, those undergoing emergency surgery faced a much higher mortality rate of 18.8%.

Are there different risks based on the surgical method?

Yes, the method of surgery matters. The data shows that a laparoscopic approach was linked to a lower risk of death, while an open approach was associated with an increased risk of death within 30 days.

Study Details

Study typeMeta analysis
EvidenceLevel 1
PublishedOct 2026
View Original Abstract ↓
INTRODUCTION: To evaluate feasibility and safety of colorectal cancer resection in nonagenarians. METHODS: In compliance with Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) statement standards, a systematic review including random-effects meta-analysis and meta-regression models was conducted. All studies reporting postoperative outcomes in patients aged ≥90 y undergoing colorectal resection for colorectal cancer were included and analyzed. RESULTS: Eleven studies including 5276 nonagenarians were included. The risk of 30-d mortality was 4.5% (95% confidence interval [CI]: 1.8-7.3); 30-d Clavien-Dindo grade ≥ III complications occurred in 11.3% (95% CI: 2.1-20.6), and reoperation was needed in 2.2% (95% CI: 0.8-3.6). The mean length of hospital stay was 14.7 d (95% CI: 13.6-15.8). Colorectal resection in emergency setting (coefficient: 0.185, P < 0.001) and colorectal resection using open approach (coefficient: 0.119, P = 0.031) were associated with increased risk of 30-d mortality. Laparoscopic approach was associated with a lower risk of 30-d mortality (coefficient: -0.121, P = 0.024). Postoperative mortality was not affected by male sex (coefficient: -0.109, P = 0.548), American Society of Anesthesiologists status ≥ III (coefficient: 0.075, P = 0.371), colon resection (coefficient: -0.028, P = 0.740), or rectal resection (coefficient: 0.027, P = 0.747). Subgroup analyses showed that the risk of 30-d mortality was 2.5% (95% CI: 0.8-4.2%) after elective surgery and 18.8% (95% CI 1.7-36%) after emergency surgery. CONCLUSIONS: The available evidence with low certainty suggests that colorectal cancer resection in highly selected nonagenarians with good performance status, who have passed robust preoperative fitness assessment tests, may be safe with acceptable risk of morbidity and mortality. The risk is significantly higher in emergency setting.
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