Samer A Naffouje1, Muhammed A Ali2, Sivesh K Kamarajah2, Bradley White3, George I Salti3,4, Fadi Dahdaleh5. 1. Department of Surgical Oncology, H. Lee Moffitt Cancer Center, Tampa, FL, USA. 2. Department of Surgery, Queen Elizabeth Hospital Birmingham, University Hospital Birmingham NHS Trust, Birmingham, UK. 3. Department of General Surgery, University of Illinois Hospital and Health Sciences System, Chicago, IL, USA. 4. Department of Surgical Oncology, Edward-Elmhurst Health, 120 Spalding Drive, Ste 205, Naperville, IL, 60540, USA. 5. Department of Surgical Oncology, Edward-Elmhurst Health, 120 Spalding Drive, Ste 205, Naperville, IL, 60540, USA. Fadi.Dahdaleh@EEHealth.org.
Abstract
BACKGROUND: Outcomes of rectal adenocarcinoma vary considerably. Composite "textbook oncologic outcome" (TOO) is a single metric that estimates optimal clinical performance for cancer surgery. METHODS: Patients with stage II/III rectal adenocarcinoma who underwent single-agent neoadjuvant chemoradiation and proctectomy within 5-12 weeks were identified in the National Cancer Database (NCDB). TOO was defined as achievement of negative distal and circumferential resection margin (CRM), retrieval of ≥ 12 nodes, no 90-day mortality, and length of stay (LOS) < 75th percentile of corresponding year's range. Multivariable logistic regression was used to identify predictors of TOO. RESULTS: Among 318,225 patients, 8869 met selection criteria. Median age was 62 years (IQR 54-71), and 5550 (62.6%) were males. Low anterior resection was the most common procedure (LAR, 6,037 (68.1%) and 3084 (34.8%) were treated at a high-volume center (≥ 20 rectal resections/year). TOO was achieved in 3967 patients (44.7%). Several components of TOO were achieved commonly, including negative CRM (87.4%), no 90-day mortality (98.0%), no readmission (93.0%), and no prolonged hospitalization (78.8%). Logistic regression identified increasing age, non-private insurance, low-volume centers, open approach, Black race, Charlson score ≥ 3, and abdominoperineal resection (APR) as predictors of failure to achieve TOO. Over time, TOOs were attained more commonly which correlated with increased minimally invasive surgery (MIS) adoption. TOO achievement was associated with improved survival. CONCLUSIONS: Rectal adenocarcinoma patients achieve TOO uncommonly. Treatment at high-volume centers and MIS approach were among modifiable factors associated with TOO in this study.
BACKGROUND: Outcomes of rectal adenocarcinoma vary considerably. Composite "textbook oncologic outcome" (TOO) is a single metric that estimates optimal clinical performance for cancer surgery. METHODS: Patients with stage II/III rectal adenocarcinoma who underwent single-agent neoadjuvant chemoradiation and proctectomy within 5-12 weeks were identified in the National Cancer Database (NCDB). TOO was defined as achievement of negative distal and circumferential resection margin (CRM), retrieval of ≥ 12 nodes, no 90-day mortality, and length of stay (LOS) < 75th percentile of corresponding year's range. Multivariable logistic regression was used to identify predictors of TOO. RESULTS: Among 318,225 patients, 8869 met selection criteria. Median age was 62 years (IQR 54-71), and 5550 (62.6%) were males. Low anterior resection was the most common procedure (LAR, 6,037 (68.1%) and 3084 (34.8%) were treated at a high-volume center (≥ 20 rectal resections/year). TOO was achieved in 3967 patients (44.7%). Several components of TOO were achieved commonly, including negative CRM (87.4%), no 90-day mortality (98.0%), no readmission (93.0%), and no prolonged hospitalization (78.8%). Logistic regression identified increasing age, non-private insurance, low-volume centers, open approach, Black race, Charlson score ≥ 3, and abdominoperineal resection (APR) as predictors of failure to achieve TOO. Over time, TOOs were attained more commonly which correlated with increased minimally invasive surgery (MIS) adoption. TOO achievement was associated with improved survival. CONCLUSIONS: Rectal adenocarcinoma patients achieve TOO uncommonly. Treatment at high-volume centers and MIS approach were among modifiable factors associated with TOO in this study.
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