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Associating comorbidities and cardiac symptoms that alter myocardial mechanical function could help clinicians to correctly identify at-risk population.We conducted a functional open population cross-sectional study of patients referred to a positron emission computed tomography/computed tomography unit in Mexico City for evaluation of myocardial function, perfusion, and coronary circulation. Ischemia was defined as a sum difference score (SDS)2. Association between comorbidities and cardiac symptoms was tested using logistic regression models and trend analysis. We performed an interaction analysis to evaluate the addition of any accompanying symptoms to comorbid conditions on impairment of myocardial function.One thousand two hundred and seventy-three patients were enrolled, 66.1% male, with a mean age of 62.4 (± 12.7) years, 360 (28.7%) with ischemia, 925 (72.7%) with at least one comorbidity, and 676 (53.1%) had at least one associated cardiac symptom. Patients without ischemia, type 2 diabetes, arterial hypertension, and adverse cardiac symptoms were associated with adverse function, perfusion, and coronary flow parameters. We observed a trend of a cumulative number of comorbidities and cardiac symptoms with increased ischemia and decreased coronary flow. Only in decreased LVEF, we demonstrated an interaction effect between increased comorbidities and adverse symptoms.The high burden of comorbidities and symptoms in our population alter myocardial function regardless of the level of ischemia.

The authors of the image chapters of the National Association of Cardiologists of Mexico (ANCAM) and the Mexican Society of Cardiology (SMC), as well as personnel from the Department of Medicine and Nutrition of the University of Guanajuato, together with prominent experts in cardiovascular imaging from Mexico, have collaborated in the review, analysis and expansion of the various health strategies published in the first year of the coronavirus disease 2019 (COVID-19) pandemic, to safely perform cardiac imaging studies. This update aims to reduce the risk of COVID-19 transmission among patients and health-care personnel in the CT, MRI, and nuclear cardiology services. This work was expanded with supplementary information available free of charge on the website www.ancam-imagen.com.Los capítulos de imagen de la Asociación Nacional de Cardiólogos de México (ANCAM) y de la Sociedad Mexicana de Cardiología (SMC), así como personal del Departamento de Medicina y Nutrición de la Universidad de Guanajuato, en conjunto con destacados expertos de la imagen cardiovascular en México, han colaborado en la revisión, análisis y ampliación de las diversas estrategias sanitarias publicadas en los primeros 15 meses de la pandemia de enfermedad por coronavirus 2019 (COVID-19) para realizar con seguridad los estudios de imagen cardiaca; esta actualización tiene como objetivo principal disminuir el riesgo de transmisión de la COVID-19 entre los pacientes y el personal de salud en los servicios de tomografía, resonancia y cardiología nuclear. Este trabajo se amplió con información suplementaria disponible sin costo en el sitio www.ancam-imagen.com.

Los capitulos de imagen de la Asociacion Nacional de Cardiologos de Mexico (ANCAM) y de la Sociedad Mexicana de Cardiologia (SMC), asi como personal del Departamento de Medicina y Nutricion de la Universidad de Guanajuato, en conjunto con destacados expertos de la imagen cardiovascular en Mexico, han colaborado en la revision, analisis y ampliacion de las diversas estrategias sanitarias publicadas en los primeros 15 meses de la pandemia de enfermedad por coronavirus 2019 (COVID-19) para realizar con seguridad los estudios de imagen cardiaca; esta actualizacion tiene como objetivo principal disminuir el riesgo de transmision de la COVID-19 entre los pacientes y el personal de salud en los servicios de tomografia, resonancia y cardiologia nuclear. Este trabajo se amplio con informacion suplementaria disponible sin costo en el sitio www.ancam-imagen.com.