Background: Perioperative atrial fibrillation is a common postoperative complication. Adverse consequences associated with POAF include hemodynamic instability, increased risk of stroke, extended hospital stays, and increased mortality.
Methods: To determine the risk factors for POAF and to investigate the outcomes of POAF for patients with cancer, a systematic search of the PubMed and Cochrane Library databases was conducted from inception of the study to 1 September 2021. The inclusion criteria specified studies reporting the prevalence of POAF among patients with cancer. The study excluded articles not written in English, review articles, case reports, letters, commentaries, systematic reviews, meta-analyses, and conference abstracts.
Results: The search identified 49 studies with 201,081 patients, and the pooled prevalence of POAF was 13.5% (95% confidence interval [CI], 11.6-15.7%). Meta-analyses showed that the incidence of POAF among patients with cancer was associated with age (mean difference [MD], 4.31; 95%CI, 3.16-5.47), male sex (odds ratio [OR], 1.39; 95% CI, 1.19-1.62), chronic obstructive pulmonary disease (OR, 2.47; 95% CI, 1.71-3.56), hypertension (OR, 1.47; 95% CI, 1.23-1.75), intraoperative blood transfusion (OR, 4.58; 95% CI, 2.31-9.10), and open surgery (OR, 1.51; 95% CI, 1.26-1.81). Patients with POAF had significantly higher in-hospital mortality (OR, 4.25; 95% CI, 2.79-6.45), longer hospital stays (MD, 3.07; 95% CI, 1.63-4.51), and higher incidences of pneumonia (OR, 3.32; 95% CI, 2.85-3.86), stroke (OR, 6.57; 95% CI, 1.56-26.00), and myocardial infarction (OR, 3.00; 95% CI, 1.45-6.20) than those without POAF.
Conclusions: For patients with cancer, POAF is associated with an increased burden of comorbidities and worse outcomes.
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