Comparison between surgery and thermal ablation for adrenal metastases: a retrospective study. (1st January 2021)

• Record Type: Journal Article
• Authors: Xie, Lin; Qi, Han; Cao, Fei; Shen, Lujun; Chen, Shuanggang; Wu, Ying; Huang, Tao; Song, Ze; Fan, Weijun
• Is Part Of: International journal of hyperthermia. Volume 38:Number 1(2021)
• Page Start: 1541
• Page End: 1547
• Publication Date: 2021-01-01
• Subjects: Adrenal metastases -- surgical resection -- thermal ablation -- complications -- local progression-free survival; Thermotherapy -- Periodicals; 615.832
• DOI: 10.1080/02656736.2021.1993356
• Languages: English
• ISSNs: 0265-6736

Abstract

Abstract: Purpose: To retrospectively compare the efficacy and safety of surgical resection (SR) and thermal ablation for the treatment of adrenal metastases. Methods: From January 2008 to December 2018, 133 patients with adrenal metastases who underwent SR ( n = 76) or thermal ablation ( n = 57) were enrolled. The mean tumor size was 58.00 ± 10.65 mm (22-80 mm) in the SR group and 58.03 ± 12.76 mm (34–89 mm) in the thermal ablation group. Local progression-free survival (LPFS) and safety were compared between the two groups using the Kaplan–Meier method and log-rank tests. Cox proportional hazard regression models were used to evaluate the prognostic factors of LPFS. Complications, hospitalization days, and blood loss were also assessed. Results: The median follow-up was 29.0 months (range, 20.4–37.6 months). No treatment-related mortality was observed. The 1-, 3- and 5-year LPFS rates were 74.0%, 62.8%, and 31.4% in the SR group and 72.8%, 68.7%, and 51.5% in the ablation group, with the median LPFS of 41.5 months (95% CI: 9.3–23.4 months) vs. 47.9 months (95% CI 20.6–75.8 months), respectively ( p = 0.784). Tumor size ≥3 cm was the only significant risk factor for LPFS ( p = 0.031). The ablation group was superior to the SR group with a lower major complication rate (4.1% vs. 14.5%, p = 0.03), less blood loss (1 ml vs. 100 ml, p < 0.001), and a shorter hospital stay (2 d vs. 6 d, p < 0.001). Conclusion: Thermal ablation provided a similar LPFS and less comorbidities than SR, indicating that it is an effective and safe treatment for adrenal metastases.