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Type 2 Diabetes Mellitus and Thoracic Aortic Aneurysm and Dissection: An Observational Population-Based Study in
Isabel Jiménez-Trujillo1, Montserrat González-Pascual, Rodrigo Jiménez-García
1From the Preventive Medicine and Public Health Teaching and Research Unit (IJ-T, MG-P, RJ-G, VH-B, PC-G, AL-D-A), Health Sciences Faculty, Rey Juan Carlos University, Alcorcon; Medicine Department (JMM-Y, MM-B), Hospital Gregorio Marañon; Pneumology Department (JDM-D), Hospital General Universitario Gregorio Marañón, Universidad Complutense de Madrid; Dirección Técnica de Docencia e Investigación(MÁS-F), Gerencia Atención Primaria, Madrid; and Health Security Agency (NP-F), Ministry of Health. Madrid, Comunidad de Madrid, Spain.
Abstract:
To describe trends in the rates of discharge due to thoracic aortic aneurysm and dissection (TAAD) among patients with and without type 2 diabetes in Spain (2001-2012).We used national hospital discharge data to select all of the patients who were discharged from the hospital after TAAD. We focused our analysis on patients with TAAD in the primary diagnosis field. Discharges were grouped by diabetes status (diabetic or nondiabetic). Incidence was calculated overall and stratified by diabetes status. We divided the study period into 4 periods of 3 years each. We analyzed diagnostic and surgical procedures, length of stay, and in-hospital mortality.We identified 48,746 patients who were discharged with TAAD. The rates of discharge due to TAAD increased significantly in both diabetic patients (12.65 cases per 100,000 in 2001/2003 to 23.92 cases per 100,000 in 2010/2012) and nondiabetic patients (17.39 to 21.75, respectively). The incidence was higher among nondiabetic patients than diabetic patients in 3 of the 4 time periods.The percentage of patients who underwent thoracic endovascular aortic repair increased in both groups, whereas the percentage of patients who underwent open repair decreased. The frequency of hospitalization increased at a higher rate among diabetic patients (incidence rate ratio 1.14, 95% confidence interval [CI] 1.07-1.20) than among nondiabetic patients (incidence rate ratio 1.08, 95% CI 1.07-1.11). The in-hospital mortality was lower in diabetic patients than in nondiabetic patients (odds ratio 0.83, 95% CI 0.69-0.99).The incidence rates were higher in nondiabetic patients. Hospitalizations seemed to increase at a higher rate among diabetic patients. Diabetic patients had a significantly lower mortality, possibly because of earlier diagnoses, and improved and more readily available treatments.
