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Shah R, Attwood K, Arya S, et al. Association of Frailty With Failure to Rescue After Low-Risk and High-Risk Inpatient Surgery. JAMA Surg. 2018;153(5):e180214. doi:10.1001/jamasurg.2018.0214
What is the association of patient frailty with postoperative complications and failure to rescue after low-risk and high-risk inpatient surgery?
In this cohort study of the American College of Surgeons National Surgical Quality Improvement Program, there was a dose-response association between increasing patient frailty, the number of postoperative complications, and failure to rescue. These associations were apparent after low-risk and high-risk inpatient surgical procedures.
Patient frailty should be considered an important component of the preoperative assessment because it may help identify patients who might benefit from perioperative interventions designed to enhance physiologic reserve and could provide a framework for shared decision making on initiating surgical care.
Failure to rescue (FTR), or death after a potentially preventable complication, is a nationally endorsed, publicly reported quality measure. However, little is known about the impact of frailty on FTR, in particular after low-risk surgical procedures.
To assess the association of frailty with FTR in patients undergoing inpatient surgery.
Design, Setting, and Participants
This study assessed a cohort of 984 550 patients undergoing inpatient general, vascular, thoracic, cardiac, and orthopedic surgery in the National Surgical Quality Improvement Program between January 1, 2005, and December 31, 2012. Frailty was assessed using the Risk Analysis Index (RAI), and patients were stratified into 5 groups (RAI score, ≤10, 11-20, 21-30, 31-40, and >40). Procedures were categorized as low mortality risk (≤1%) or high mortality risk (>1%). The association between RAI scores, the number of postoperative complications (0, 1, 2, or 3 or more), and FTR was evaluated using hierarchical modeling.
Main Outcomes and Measures
The number of postoperative complications and inpatient FTR.
A total of 984 550 patients were included, with a mean (SD) age of 58.2 (17.1) years; women were 549 281 (55.8%) of the cohort. For patients with RAI scores of 10 or less, major complication rates after low-risk surgery were 3.2%; rates of those with RAI scores of 11 to 20, 21 to 30, 31 to 40, and more than 40 were 8.6%, 13.5%, 23.8%, and 36.4%, respectively. After high-risk surgery, these rates were 13.5% for those with scores of 10 or less, 23.7% for those with scores of 11 to 20, 31.1% for those with scores of 21 to 30, 42.5% for those with scores of 31 to 40, and 54.4% for those with scores of more than 40. Stratifying by the number of complications, significant increases in FTR were observed across RAI categories after both low-risk and high-risk procedures. After a low-risk procedure, odds of FTR after 1 major complication for patients with RAI scores of 11 to 20 increased 5-fold over those with RAI scores of 10 or less (odds ratio [OR], 5.3; 95% CI, 3.9-7.1). Odds ratios were 8.1 (95% CI, 5.6-11.7) for patients with RAI scores of 21 to 30; 22.3 (95% CI, 13.9-35.6) for patients with scores of 31 to 40; and 43.9 (95% CI, 19-101.1) for patients with scores of more than 40. For patients undergoing a high-risk procedure, the corresponding ORs were likewise consistently elevated (RAI score 11-20: OR, 2.5; 95% CI, 2.3-2.7; vs RAI score 21-30: 5.1; 95% CI, 4.6-5.5; vs RAI score 31-40: 8.9; 95% CI, 8.1-9.9; vs RAI score >40: 18.4; 95% CI, 15.7-21.4).
Conclusions and Relevance
Frailty has a dose-response association with complications and FTR, which is apparent after low-risk and high-risk inpatient surgery. Systematic assessment of frailty in preoperative patients may help refine estimates of surgical risk that could identify patients who might benefit from perioperative interventions designed to enhance physiologic reserve and potentially mitigate aspects of procedural risk, and would provide a framework for shared decision-making regarding the value of a given surgical procedure.
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