Minimally Invasive Compared to Open Colorectal Cancer Resection for Older Adults A Population-based Analysis of Long-term Functional Outcomes

摘要

Objective:We sought to compare long-term healthcare dependency and time-at-home between older adults undergoing minimally invasive surgery (MIS) for colorectal cancer (CRC) and those undergoing open resection. Background:Although the benefits of MIS for CRC resection are established, data specific to older adults are lacking. Long-term functional outcomes, central to decision-making in the care for older adults, are unknown. Methods:We performed a population-based analysis of patients >= 70years old undergoing CRC resection between 2007 to 2017 using administrative datasets. Outcomes were receipt of homecare and "high" time-at-home, which we defined as years with <= 14 institution-days, in the 5years after surgery. Homecare was analyzed using time-to-event analyses as a recurrent dichotomous outcome with Andersen-Gill multivariable models. High timeat-home was assessed using Cox multivariable models. Results:Of 16,479 included patients with median follow-up of 4.3 (interquartile range 2.1-7.1) years, 7822 had MIS (47.5). The MIS group had lower homecare use than the open group with 22.3 versus 31.6 at 6 months and 14.8 versus 19.4 at 1 year hazard ratio 0.87,95 confidence interval (CI) 0.83-0.92. The MIS group had higher probability ofhigh time-at-home than open surgery with 54.9 (95 CI 53.6-56.1) versus 41.2 (95 CI 40.1-42.3) at 5years (hazard ratio 0.71, 95 CI 0.68-0.75). Conclusions:Compared to open surgery, MIS for CRC resection was associated with lower homecare needs and higher probability of high time-at-home in the 5 years after surgery, indicating reduced long-term functional dependence. These are important patient-centered endpoints reflecting the overall long-term treatment burden to be taken into consideration in decision-making.