{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,13]],"date-time":"2026-04-13T16:10:30Z","timestamp":1776096630248,"version":"3.50.1"},"reference-count":31,"publisher":"American Medical Association (AMA)","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JAMA Netw Open"],"abstract":"<jats:sec id=\"ab-zoi260227-4\">\n                    <jats:title>Importance<\/jats:title>\n                    <jats:p>\n                      Syphilis, which is caused by\n                      <jats:italic toggle=\"yes\">Treponema pallidum<\/jats:italic>\n                      , has historically been associated with cardiovascular complications. Despite a resurgence of syphilis incidence in the US, large-scale studies evaluating its independent cardiovascular impact are lacking.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"ab-zoi260227-5\">\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>To determine whether syphilis infection is independently associated with increased risk of adverse cardiovascular outcomes in a US health system population.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"ab-zoi260227-6\">\n                    <jats:title>Design, Setting, and Participants<\/jats:title>\n                    <jats:p>\n                      This retrospective cohort study with a 15-year follow-up (January 1, 2011, to July 1, 2025) was performed within a tertiary health care system in New Orleans, Louisiana. Participants included adults with syphilis identified using codes from the\n                      <jats:italic toggle=\"yes\">International and Statistical Classification of Diseases, Tenth Revision<\/jats:italic>\n                      (\n                      <jats:italic toggle=\"yes\">ICD-10<\/jats:italic>\n                      ) and controls without syphilis who were matched based on demographic characteristics and comorbidities. Patients with preexisting cardiovascular disease were excluded. Data were analyzed from January 1, 2011, to July 1, 2025.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"ab-zoi260227-7\">\n                    <jats:title>Exposures<\/jats:title>\n                    <jats:p>\n                      Diagnosis of syphilis (primary, secondary, tertiary, or unspecified stage) documented by\n                      <jats:italic toggle=\"yes\">ICD-10<\/jats:italic>\n                      codes.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"ab-zoi260227-8\">\n                    <jats:title>Main Outcomes and Measures<\/jats:title>\n                    <jats:p>Incident cardiovascular events included myocardial infarction, heart failure, aortic regurgitation, atrial fibrillation, aortic aneurysm or dissection, ischemic stroke, hemorrhagic stroke, peripheral artery disease, venous thromboembolism, and death. Outcomes were assessed using Kaplan-Meier survival curves and were adjusted for body mass index.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"ab-zoi260227-9\">\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      A total of 8814 participants were included in the analysis (4753 [53.9%] female; mean [SD] age, 50.0 [17.0] years). The syphilis group (n\u2009=\u20091469) and control group (n\u2009=\u20097345) were similar in terms of their demographic characteristics (mean [SD] age, 50.1\u2009[17.0] vs 50.0 [17.6] years [\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      \u2009=\u2009.78]; 795 [54.1%] vs 3958 [53.9%] female [\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      \u2009=\u2009.84]) and comorbidities. In adjusted analyses, syphilis was associated with an increased risk of aortic aneurysm or dissection (hazard ratio [HR], 2.08; 95% CI, 1.47-2.94;\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      \u2009=\u2009.001), ischemic stroke (HR, 1.53; 95% CI, 1.27-1.84;\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      \u2009&amp;amp;lt;\u2009.001), hemorrhagic stroke (HR, 1.92; 95% CI, 1.23-2.99;\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      \u2009=\u2009.004), peripheral artery disease (HR, 1.28; 95% CI, 1.01-1.62;\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      \u2009=\u2009.04), death (HR, 5.80; 95% CI, 3.81-8.82;\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      \u2009&amp;amp;lt;\u2009.001), and myocardial infarction (HR, 1.33; 95% CI, 1.06-1.67;\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      \u2009=\u2009.01). No associations were found for heart failure (HR, 0.98; 95% CI, 0.83-1.17), atrial fibrillation (HR, 0.85; 95% CI, 0.67-1.08), aortic regurgitation (HR, 1.58; 95% CI, 0.87-2.87), or venous thromboembolism (HR, 1.47; 95% CI, 0.76-2.94).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"ab-zoi260227-10\">\n                    <jats:title>Conclusions and Relevance<\/jats:title>\n                    <jats:p>In this retrospective cohort study of adults with syphilis, infection was independently associated with higher risk of several major cardiovascular outcomes. These findings underscore the importance of early detection and treatment of syphilis and suggest a role for incorporating cardiovascular risk assessment into comprehensive syphilis management strategies.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1001\/jamanetworkopen.2026.6771","type":"journal-article","created":{"date-parts":[[2026,4,13]],"date-time":"2026-04-13T15:30:29Z","timestamp":1776094229000},"page":"e266771","source":"Crossref","is-referenced-by-count":0,"title":["Adverse Cardiovascular Outcomes in Patients With Syphilis"],"prefix":"10.1001","volume":"9","author":[{"given":"Eli","family":"Tsakiris","sequence":"first","affiliation":[{"name":"Tulane Research Innovation for Arrhythmia Discovery, New Orleans, Louisiana"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Han","family":"Feng","sequence":"additional","affiliation":[{"name":"Tulane Research Innovation for Arrhythmia Discovery, New Orleans, 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Louisiana"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yishi","family":"Jia","sequence":"additional","affiliation":[{"name":"Tulane Research Innovation for Arrhythmia Discovery, New Orleans, Louisiana"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yingshuo","family":"Liu","sequence":"additional","affiliation":[{"name":"Tulane Research Innovation for Arrhythmia Discovery, New Orleans, Louisiana"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hadi","family":"Younes","sequence":"additional","affiliation":[{"name":"Tulane Research Innovation for Arrhythmia Discovery, New Orleans, Louisiana"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yara","family":"Menassa","sequence":"additional","affiliation":[{"name":"Tulane Research Innovation for Arrhythmia Discovery, New Orleans, Louisiana"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michel","family":"Abou Khalil","sequence":"additional","affiliation":[{"name":"Tulane Research Innovation for Arrhythmia Discovery, New Orleans, Louisiana"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mayana","family":"Bsoul","sequence":"additional","affiliation":[{"name":"Tulane Research Innovation for Arrhythmia Discovery, New Orleans, Louisiana"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mohammad Montaser","family":"Atasi","sequence":"additional","affiliation":[{"name":"Tulane Research Innovation for Arrhythmia Discovery, New Orleans, Louisiana"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Samer","family":"Zakhour","sequence":"additional","affiliation":[{"name":"Section of Cardiology, Heart and Vascular Institute, Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David","family":"Mushatt","sequence":"additional","affiliation":[{"name":"Section of 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