Laparoscopic colectomy was associated with lower mortality than open surgery in severe COPD

Design

Retrospective propensity-matched cohort (ACS-NSQIP 2011 to 2020)

Population

6038 matched patients with severe COPD undergoing elective colectomy

Primary outcome

30-day mortality and cardiopulmonary complications

Effect

Mortality 2.3% vs 3.4%; adjusted OR 0.65 (0.47 to 0.90); pneumonia 4.7% vs 6.9%

This ACS-NSQIP analysis took 7962 patients with severe COPD undergoing elective colectomy for cancer, diverticulitis or ulcerative colitis between 2011 and 2020, and compared laparoscopic with open surgery in 3019 propensity-matched pairs.

Laparoscopy was associated with lower 30-day mortality (2.3% vs 3.4%), unplanned intubation (3.3% vs 4.7%), pneumonia (4.7% vs 6.9%), ventilation beyond 48 hours (2.0% vs 4.2%) and myocardial infarction (0.9% vs 1.6%), and a two-day shorter median stay. In adjusted analysis of the unmatched cohort, laparoscopy was independently associated with lower mortality (OR 0.65, 95% CI 0.47 to 0.90).

The worry that pneumoperitoneum and positioning make laparoscopy risky in severe lung disease is not borne out here. Propensity matching cannot remove selection by surgeons, who may have chosen open surgery for sicker or more complex patients, but the direction and size of the association support a laparoscopic-first approach with anaesthetic planning.

• Severe COPD is not a reason to choose open over laparoscopic colectomy
• Plan with anaesthesia for lower insufflation pressures and careful ventilation
• Optimise bronchodilators and stop smoking before elective resection
• Expect the benefit mainly in fewer pulmonary complications and shorter stay

Why it matters

It challenges the reflex to open when the lungs are poor.

Don't overread it

This is a retrospective registry analysis; surgeons may have selected fitter patients for laparoscopy.

The statistics, in plain English

An odds ratio of 0.65 with an interval of 0.47 to 0.90 means about a third lower odds of death, and the interval does not cross 1. Propensity matching balances measured factors only.

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