Sanjay Divakaran1,2, Avinainder Singh1,3, David Biery1, Junjie Yang1, Ersilia M DeFilippis4, Bradley L Collins4, Mattheus Ramsis1, Arman Qamar2, Jon Hainer1, Josh Klein1, Christopher P Cannon2, Donna M Polk2, Jorge Plutzky2, Khurram Nasir3, James L Januzzi5, Marcelo F Di Carli1,2, Deepak L Bhatt2, Ron Blankstein6,2. 1. Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA. 2. Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA. 3. Department of Medicine, Yale University School of Medicine, New Haven, CT. 4. Department of Medicine, New York Presbyterian-Columbia University Irving Medical Center, New York, NY. 5. Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, and the Baim Institute for Clinical Research, Boston, MA. 6. Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA rblankstein@bwh.harvard.edu.
Abstract
OBJECTIVE: We sought to determine the prevalence of diabetes and associated cardiovascular outcomes in a contemporary cohort of young individuals presenting with their first myocardial infarction (MI) at age ≤50 years. RESEARCH DESIGN AND METHODS: We retrospectively analyzed records of patients presenting with a first type 1 MI at age ≤50 years from 2000 to 2016. Diabetes was defined as a hemoglobin A1c ≥6.5% (48 mmol/mol) or a documented diagnosis of or treatment for diabetes. Vital status was ascertained for all patients, and cause of death was adjudicated. RESULTS: Among 2,097 young patients who had a type 1 MI (mean age 44.0 ± 5.1 years, 19.3% female, 73% white), diabetes was present in 416 (20%), of whom 172 (41%) were receiving insulin. Over a median follow-up of 11.2 years (interquartile range 7.3-14.2 years), diabetes was associated with a higher all-cause mortality (hazard ratio 2.30; P < 0.001) and cardiovascular mortality (2.68; P < 0.001). These associations persisted after adjusting for baseline covariates (all-cause mortality: 1.65; P = 0.008; cardiovascular mortality: 2.10; P = 0.004). CONCLUSIONS: Diabetes was present in 20% of patients who presented with their first MI at age ≤50 years and was associated with worse long-term all-cause and cardiovascular mortality. These findings highlight the need for implementing more aggressive therapies aimed at preventing future adverse cardiovascular events in this population.
OBJECTIVE: We sought to determine the prevalence of diabetes and associated cardiovascular outcomes in a contemporary cohort of young individuals presenting with their first myocardial infarction (MI) at age ≤50 years. RESEARCH DESIGN AND METHODS: We retrospectively analyzed records of patients presenting with a first type 1 MI at age ≤50 years from 2000 to 2016. Diabetes was defined as a hemoglobin A1c ≥6.5% (48 mmol/mol) or a documented diagnosis of or treatment for diabetes. Vital status was ascertained for all patients, and cause of death was adjudicated. RESULTS: Among 2,097 young patients who had a type 1 MI (mean age 44.0 ± 5.1 years, 19.3% female, 73% white), diabetes was present in 416 (20%), of whom 172 (41%) were receiving insulin. Over a median follow-up of 11.2 years (interquartile range 7.3-14.2 years), diabetes was associated with a higher all-cause mortality (hazard ratio 2.30; P < 0.001) and cardiovascular mortality (2.68; P < 0.001). These associations persisted after adjusting for baseline covariates (all-cause mortality: 1.65; P = 0.008; cardiovascular mortality: 2.10; P = 0.004). CONCLUSIONS: Diabetes was present in 20% of patients who presented with their first MI at age ≤50 years and was associated with worse long-term all-cause and cardiovascular mortality. These findings highlight the need for implementing more aggressive therapies aimed at preventing future adverse cardiovascular events in this population.
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