Regaining a satisfactory quality of life and predicting functional decline after major cancer surgery in older adults: The Geriatric Oncology Surgical Assessment and Functional rEcovery after Surgery (GOSAFE) study.

Abstract

12051 Background: Older cancer patients value quality of life (QoL) and functional outcomes as much as survival but surgical studies lack specific data. The international, multicenter GOSAFE study (ClinicalTrials.gov NCT03299270) aims to evaluate patients’ QoL and functional recovery (FR) after cancer surgery and to assess predictors of FR Methods: GOSAFE prospectively collected functional and clinical data before and after major elective cancer surgery on senior adults (≥70 years). Surgical outcomes were recorded (30, 90, and 180 days post-operatively) with QoL (EQ-5D-3L) and FR (Activities of Daily Living (ADL), Timed Up and Go (TUG) and MiniCog), 26 centers enrolled patients from February 2017 to April 2019. Results: 942 patients underwent a major cancer resection. Median age was 78 (range 70-95); 52.2% males, ASA III-IV 49%. 934 (99%) lived at home, 51% lived alone, and 87% were able to go out. Patients dependent (ADL < 5) were 8%. Frailty was detected by means of G8 ≤14 in 68.8% and fTRST ≥2 in 37% of patients. Major comorbidities (CCI > 6) were reported in 36% and 21% had cognitive impairment according to MiniCog (2.2% self-reported). 25% had > 3 kg weight loss, 27% were hospitalized in the last 90 days, 54% had ≥3 medications (6% none). Postoperative overall morbidity was 39.1% (30 day) and 22.5% (90 day), but Clavien-Dindo III-IV complications were only 13.4% and 6.9% respectively. 30/90/180-day mortality was 3.6/6/8.9% (10/30/33% in patients with severe functional disability). At 3 months after surgery, QoL was stable/improved (mean EQ-5D index 0.78 was equivalent before vs. after surgery, while the EQ-5D VAS score > 60 raised from 74.3% at baseline to 80.2%, p < 0.01). 76.6% experienced postoperative FR/stability. Logistic regression analysis showed that ASA 3-4, CCI≥7 and CD III-IV complications are significantly associated with functional decline while a G8 > 14 has a positive association with functional recovery. Age is not associated with functional outcomes. Conclusions: The largest prospective study on older patients undergoing structured frailty assessment before and after major elective cancer surgery has shown that QoL remains stable/improves after cancer surgery. The majority of patients return to independence and G8 can predict functional recovery. Older patients with multiple comorbidities, high ASA score or postoperative severe complications are likely to functionally deteriorate after oncologic surgery Clinical trial information: NCT03299270 .