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Diabetes influences cancer risk in patients with increased carotid atherosclerosis burden

Stefano Rizza, Valerio Rossini, Marina Cardellini, Alessio Luzi, Susanna Longo, Giacomo Piciucchi, Luca Coppeta, Massimo Federici
Nutrition, metabolism, and cardiovascular diseases 2020 v.30 no.4 pp. 652-655
atherosclerosis, carcinogenesis, diabetes, neoplasms, observational studies, patients, risk factors, screening
Atherosclerosis and cancer share several risk factors suggesting that at least in part their pathogenesis is sustained by common mechanisms. To investigate this relation we followed a group of subjects with carotid atherosclerosis at baseline up for malignancy development.we carried out an observational study exploring cancer incidence (study endpoint) in subjects with known carotid atherosclerosis at baseline (n = 766) without previous cancer or carotid vascular procedures. During the follow-up (160 ± 111 weeks) 24 cancer occurred, corresponding to an overall annual incidence rate of 0.11%. 10 diagnosis of cancer occurred in individuals with a carotid stenosis >50% (n = 90) whereas 14 in patients with a carotid stenosis <50% patients (n = 676) (p < 0.001). Respect to patients without cancer, diabetes was markedly more common in subjects with cancer diagnosis during the FU (37.3%vs75.0%, p < 0.001). After controlling for classic risk factors, carotid stenosis >50% (HR = 2.831, 95%CI = 1.034–5.714; p = 0.036) and diabetes (HR = 4.831, 95%CI = 1.506–15.501; p = 0.008) remained significantly associated with cancer diagnosis.to our knowledge this is the first study reporting a significant risk of cancer development in subjects with diabetes and high risk of cerebrovascular events, highlighting the need of a carefully clinical screening for cancer in diabetic patients with overt carotid atherosclerosis.