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Atrial fibrillation patients more likely to develop cancer

16 Oct 2019

The risk of cancer is higher among patients with atrial fibrillation (AF), a recent study has found. Among important risk factors are comorbidities such as diabetes, hypertension and liver cirrhosis.

The study included 332,555 AF patients (mean age, 70.8±13.1 years; 55.2 percent male) with no history of cancer, enrolled from Taiwan’s National Health Insurance Research Database. Cancer incidence data in the general population were retrieved from the National Cancer Registry. Majority of the participants had hypertension.

Over a median follow-up of 3.1 years, 22,911 incident cases of cancer were observed, leading to an incidence rate of 1.65 percent per year. This was higher in males than in females (1.92 vs 1.31 percent per year).

The peak of cancer incidence occurred a year after AF diagnosis, with 7,413 such cases. The corresponding rate was 2.65 percent per year. This was significantly higher than rates of cancer incidence 10 years after AF incidence (incidence risk ratio, 10.20, 95 percent CI, 9.57–10.89).

AF patients likewise suffered from a significantly elevated risk of cancer relative to general population controls (standardized incidence ratio [SIR], 1.37, 1.36–1.39). This remained true even after disaggregation according to sex: males (SIR, 1.37, 1.35–1.40) and females (SIR, 1.37, 1.34–1.40). This relationship also remained significant across all age categories.

Multivariable Cox regression analysis found that significant predictors of cancer among AF patients were age 65 years, male sex, hypertension, diabetes, chronic obstructive pulmonary disease and liver cirrhosis. The incidence of cancer in patients with all six risk factors was 2.76 percent per year, as compared to only 0.70 percent per year in AF patients without any risk factor.

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Most Read Articles
6 days ago
Chest pain appears to be the principal complaint of patients hospitalized with a first myocardial infarction (MI), particularly among those in the youngest age group, a study has found.
Jairia Dela Cruz, 16 Sep 2020
In patients with heart failure with reduced ejection fraction (HFrEF) receiving angiotensin-converting-enzyme (ACE) inhibitors, high dosing confers benefits for the risk of death or hospitalization that are similar to that obtained with lower dosing, according to a systematic review and meta-analysis.
Pearl Toh, 6 days ago
Early and sustained treatments with simplified regimen are the key to achieving good asthma control, said experts during a presentation at the ERS 2020 Congress.
Yesterday
Percutaneous coronary intervention (PCI), compared with coronary artery bypass grafting (CABG), in the revascularization of left main coronary artery (LMCA) disease may lead to death, myocardial infarction (MI), or stroke in patients with moderate or severe left ventricular (LV) dysfunction, reveals a study.