Cancer-Related Fatigue After Esophageal Cancer Surgery: Impact of Postoperative Complications.

ABSTRACT

BACKGROUND: The impact of postoperative complications on cancer-related fatigue is unknown. This nationwide prospective cohort study aimed to assess the trajectory of cancer-related fatigue and the influence of predefined postoperative complications on cancer-related fatigue up to 2 years after esophageal cancer surgery. METHODS: The patients in this study underwent esophagectomy between 2013 and 2019 in Sweden. The exposure was predefined postoperative complications. The outcome was cancer-related fatigue measured by the fatigue scale of the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30) and the EORTC QLQ-Fatigue 12 (QLQ-FA12) questionnaire. Linear mixed-effects models provided adjusted fatigue scores and mean score differences (MDs) with 95% confidence intervals (CIs) between patients with and without predefined complications. RESULTS: The study enrolled 331 patients. The QLQ-C30 fatigue score increased with clinical relevance among patients with any complications (MD, 5.8; 95% CI, 2.6-9.0) who had a higher Clavien-Dindo classification (grades 2 to 3a MD, 7.3; 95% CI, 3.1-11.5), a medical complication (MD, 6.9; 95% CI, 3.0-10.7), or a pulmonary complication (MD, 6.9; 95% CI, 2.1-11.6) for 1-1.5 years and remained stable until 2 years after esophagectomy. Similar patterns were found in the QLQ-FA12 fatigue and QLQ-FA12 physical and emotional subscales, but not in the cognitive subscales. CONCLUSIONS: Complications in general and medical and pulmonary complications in particular might be associated with increased cancer-related fatigue after esophagectomy.