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More than 30 percent of diabetes patients have silent MI which go undetected, reveals research

A new study published in the journal of Cureus showed that more than one-third of people with diabetes have silent myocardial ischemia (SMI), which frequently goes undiagnosed because of its lack of symptoms and restrictions on standard screening.
One of the main causes of elevated cardiovascular morbidity and mortality in individuals with diabetes is silent myocardial ischemia (SMI), a disease that is commonly underdiagnosed. Chronic hyperglycemia, oxidative stress, endothelial dysfunction, and low-grade inflammation further predispose diabetics to SMI, while the lack of common symptoms like angina (especially in diabetics with altered pain perception due to autonomic neuropathy) makes ischemic episodes invisible.
However, because of its lack of symptoms and the limits of routine screening, it frequently goes unnoticed despite its grave effects. This illuminates the critical need for proactive risk stratification and focused diagnostic techniques. Thus, to improve early identification through targeted risk stratification and inform customized screening strategies to lower cardiovascular events in this high-risk group, Hafiz Abdul Manan and team carried out this study to ascertain the prevalence and important risk factors linked to SMI in diabetic adults.
From May 2020 to May 2021, Jinnah Hospital in Lahore hosted this cross-sectional research. Time and budget constraints led to the convenient sampling of 162 diabetic individuals aged ≥40 years, with ≥5 years of diabetes and no history of coronary artery disease. A review of the participants' medical histories, physical examinations, lab tests (lipid profile, HbA1c), and cardiac evaluations (resting ECG, exercise stress testing, and myocardial perfusion imaging) were all performed.
A total of 61 (37.65%) of the diabetic patients had SMI. A number of independent predictors of SMI were found using multivariate logistic regression analysis, including smoking, high blood pressure, dyslipidemia, diabetes that has been present for more than 10 years, and inadequate glycemic management.
Growing older was also strongly linked to a higher risk of SMI, with a noticeable increase in prevalence seen beyond the age of 55. In order to prevent negative cardiovascular outcomes, our findings emphasize the high prevalence of silent myocardial ischemia in diabetics and the significance of identifying critical indicators to assist early identification, focused screening, and risk-based treatment techniques.
Overall, this study finds a number of important characteristics, such as poor glycemic control, long-standing diabetes, hypertension (HTN), dyslipidemia, smoking, and advanced age, that contribute to the alarming prevalence of SMI in diabetic patients.
Source:
Abdul Manan, H., Chishti, H. R., & Hewlett, F. D. (2025). Prevalence and predictors of silent myocardial ischemia in diabetic patients. Cureus. https://doi.org/10.7759/cureus.82407
Neuroscience Masters graduate
Jacinthlyn Sylvia, a Neuroscience Master's graduate from Chennai has worked extensively in deciphering the neurobiology of cognition and motor control in aging. She also has spread-out exposure to Neurosurgery from her Bachelor’s. She is currently involved in active Neuro-Oncology research. She is an upcoming neuroscientist with a fiery passion for writing. Her news cover at Medical Dialogues feature recent discoveries and updates from the healthcare and biomedical research fields. She can be reached at editorial@medicaldialogues.in
Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751