{"title":"不同体重指数无标准可改变心血管危险因素的急性心肌梗死患者的住院结局：来自cc - acs项目的发现","authors":"Yuxiu Yang, Zaiqiang Liu, Fei Gao, Xiaoteng Ma, Jing Liu, Zhijian Wang","doi":"10.1161/JAHA.124.037651","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>Individuals who present with acute myocardial infarction in the absence of standard modifiable cardiovascular risk factors (ie, SMuRF-less) seem to have a significantly increased risk of mortality; however, it remains unclear whether the \"SMuRF paradox\" would be influenced by patients' baseline body mass index (BMI) status.</p><p><strong>Methods: </strong>Using data from the CCC-ACS (Improving Care for Cardiovascular Disease in China-Acute Coronary Syndrome) project from November 2014 to July 2019, we analyzed patients with acute myocardial infarction with and without SMuRFs and categorized their BMI as underweight (<18.5 kg/m<sup>2</sup>), normal weight (18.5-24 kg/m<sup>2</sup>), overweight (24-28 kg/m<sup>2</sup>), and obese (>28 kg/m<sup>2</sup>). The primary outcome was in-hospital all-cause mortality. Multivariable logistic regression models were used to estimate BMI-stratified associations between SMuRF-less status and outcomes.</p><p><strong>Results: </strong>The study included 44 538 patients with first-presentation acute myocardial infarction, of whom 4454 were SMuRF-less. The incidence of SMuRF-lessness declined from 16.2% to 6.5% as BMI increased by category, and it prevailed more frequently among women and older people regardless of their BMI status. Patients who were SMuRF-less had a significant increase in in-hospital mortality than patients with ≥1 SMuRF (adjusted odds ratio [OR], 1.750 [95% CI, 1.057-2.896], <i>P</i><0.001). The highest mortality rate was observed in the group who were SMuRF-less and underweight (3.5%). Considering patients with ≥1 SMuRF and obesity as the reference group, the group who were SMuRF-less underweight exhibited the highest increase in mortality (adjusted OR, 3.854 [95% CI, 2.130-6.973], <i>P</i><0.001).</p><p><strong>Conclusions: </strong>Among patients with first-presentation acute myocardial infarction, compared with those with ≥1 SMuRF, patients who were SMuRF-less have a significantly higher risk of in-hospital mortality, especially in those underweight, whereas in-hospital survival was the most favorable among patients with ≥1 SMuRF and obesity.</p><p><strong>Registration: </strong>URL: https://www.clinicaltrials.gov; Unique identifier: NCT0230661.</p>","PeriodicalId":54370,"journal":{"name":"Journal of the American Heart Association","volume":" ","pages":"e037651"},"PeriodicalIF":5.0000,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"In-Hospital Outcomes in Patients With Acute Myocardial Infarction and No Standard Modifiable Cardiovascular Risk Factors Across Varying Body Mass Index: Findings From the CCC-ACS Project.\",\"authors\":\"Yuxiu Yang, Zaiqiang Liu, Fei Gao, Xiaoteng Ma, Jing Liu, Zhijian Wang\",\"doi\":\"10.1161/JAHA.124.037651\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>Individuals who present with acute myocardial infarction in the absence of standard modifiable cardiovascular risk factors (ie, SMuRF-less) seem to have a significantly increased risk of mortality; however, it remains unclear whether the \\\"SMuRF paradox\\\" would be influenced by patients' baseline body mass index (BMI) status.</p><p><strong>Methods: </strong>Using data from the CCC-ACS (Improving Care for Cardiovascular Disease in China-Acute Coronary Syndrome) project from November 2014 to July 2019, we analyzed patients with acute myocardial infarction with and without SMuRFs and categorized their BMI as underweight (<18.5 kg/m<sup>2</sup>), normal weight (18.5-24 kg/m<sup>2</sup>), overweight (24-28 kg/m<sup>2</sup>), and obese (>28 kg/m<sup>2</sup>). The primary outcome was in-hospital all-cause mortality. Multivariable logistic regression models were used to estimate BMI-stratified associations between SMuRF-less status and outcomes.</p><p><strong>Results: </strong>The study included 44 538 patients with first-presentation acute myocardial infarction, of whom 4454 were SMuRF-less. The incidence of SMuRF-lessness declined from 16.2% to 6.5% as BMI increased by category, and it prevailed more frequently among women and older people regardless of their BMI status. Patients who were SMuRF-less had a significant increase in in-hospital mortality than patients with ≥1 SMuRF (adjusted odds ratio [OR], 1.750 [95% CI, 1.057-2.896], <i>P</i><0.001). The highest mortality rate was observed in the group who were SMuRF-less and underweight (3.5%). Considering patients with ≥1 SMuRF and obesity as the reference group, the group who were SMuRF-less underweight exhibited the highest increase in mortality (adjusted OR, 3.854 [95% CI, 2.130-6.973], <i>P</i><0.001).</p><p><strong>Conclusions: </strong>Among patients with first-presentation acute myocardial infarction, compared with those with ≥1 SMuRF, patients who were SMuRF-less have a significantly higher risk of in-hospital mortality, especially in those underweight, whereas in-hospital survival was the most favorable among patients with ≥1 SMuRF and obesity.</p><p><strong>Registration: </strong>URL: https://www.clinicaltrials.gov; Unique identifier: NCT0230661.</p>\",\"PeriodicalId\":54370,\"journal\":{\"name\":\"Journal of the American Heart Association\",\"volume\":\" \",\"pages\":\"e037651\"},\"PeriodicalIF\":5.0000,\"publicationDate\":\"2025-04-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of the American Heart Association\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1161/JAHA.124.037651\",\"RegionNum\":1,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2025/3/26 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q1\",\"JCRName\":\"CARDIAC & CARDIOVASCULAR SYSTEMS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the American Heart Association","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1161/JAHA.124.037651","RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/3/26 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"CARDIAC & CARDIOVASCULAR SYSTEMS","Score":null,"Total":0}
In-Hospital Outcomes in Patients With Acute Myocardial Infarction and No Standard Modifiable Cardiovascular Risk Factors Across Varying Body Mass Index: Findings From the CCC-ACS Project.
Background: Individuals who present with acute myocardial infarction in the absence of standard modifiable cardiovascular risk factors (ie, SMuRF-less) seem to have a significantly increased risk of mortality; however, it remains unclear whether the "SMuRF paradox" would be influenced by patients' baseline body mass index (BMI) status.
Methods: Using data from the CCC-ACS (Improving Care for Cardiovascular Disease in China-Acute Coronary Syndrome) project from November 2014 to July 2019, we analyzed patients with acute myocardial infarction with and without SMuRFs and categorized their BMI as underweight (<18.5 kg/m2), normal weight (18.5-24 kg/m2), overweight (24-28 kg/m2), and obese (>28 kg/m2). The primary outcome was in-hospital all-cause mortality. Multivariable logistic regression models were used to estimate BMI-stratified associations between SMuRF-less status and outcomes.
Results: The study included 44 538 patients with first-presentation acute myocardial infarction, of whom 4454 were SMuRF-less. The incidence of SMuRF-lessness declined from 16.2% to 6.5% as BMI increased by category, and it prevailed more frequently among women and older people regardless of their BMI status. Patients who were SMuRF-less had a significant increase in in-hospital mortality than patients with ≥1 SMuRF (adjusted odds ratio [OR], 1.750 [95% CI, 1.057-2.896], P<0.001). The highest mortality rate was observed in the group who were SMuRF-less and underweight (3.5%). Considering patients with ≥1 SMuRF and obesity as the reference group, the group who were SMuRF-less underweight exhibited the highest increase in mortality (adjusted OR, 3.854 [95% CI, 2.130-6.973], P<0.001).
Conclusions: Among patients with first-presentation acute myocardial infarction, compared with those with ≥1 SMuRF, patients who were SMuRF-less have a significantly higher risk of in-hospital mortality, especially in those underweight, whereas in-hospital survival was the most favorable among patients with ≥1 SMuRF and obesity.
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As an Open Access journal, JAHA - Journal of the American Heart Association is rapidly and freely available, accelerating the translation of strong science into effective practice.
JAHA is an authoritative, peer-reviewed Open Access journal focusing on cardiovascular and cerebrovascular disease. JAHA provides a global forum for basic and clinical research and timely reviews on cardiovascular disease and stroke. As an Open Access journal, its content is free on publication to read, download, and share, accelerating the translation of strong science into effective practice.
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