Pulse pressure and risk of new-onset atrial fibrillation.

Pulse pressure and risk of new-onset atrial fibrillation. Research Abstract Details 

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Pulse pressure and risk of new-onset atrial fibrillation. Abstract Text:

Gary F Mitchell,Ramachandran S Vasan,Michelle J Keyes,Helen Parise,Thomas J Wang,Martin G Larson,Ralph B D'Agostino,William B Kannel,Daniel Levy,Emelia J Benjamin,

CONTEXT: Atrial fibrillation (AF) is responsible for considerable morbidity and mortality, making identification of modifiable risk factors a priority. Increased pulse pressure, a reflection of aortic stiffness, increases cardiac load and may increase AF risk. OBJECTIVE: To examine relations between pulse pressure and incident AF. DESIGN, SETTING, AND PARTICIPANTS: Prospective, community-based observational cohort in Framingham, Mass, including 5331 Framingham Heart Study participants aged 35 years and older and initially free from AF (median age, 57 years; 55% women). MAIN OUTCOME MEASURES: Incident AF. RESULTS: AF developed in 698 participants (13.1%) a median of 12 years after pulse pressure assessment. Cumulative 20-year AF incidence rates were 5.6% for pulse pressure of 40 mm Hg or less (25th percentile) and 23.3% for pulse pressure greater than 61 mm Hg (75th percentile). In models adjusted for age, sex, baseline and time-dependent change in mean arterial pressure, and clinical risk factors for AF (body mass index, smoking, valvular disease, diabetes, electrocardiographic left ventricular hypertrophy, hypertension treatment, and prevalent myocardial infarction or heart failure), pulse pressure was associated with increased risk for AF (adjusted hazard ratio [HR], 1.26 per 20-mm Hg increment; 95% confidence interval [CI], 1.12-1.43; P<.001). In contrast, mean arterial pressure was unrelated to incident AF (adjusted HR, 0.96 per 10-mm Hg increment; 95% CI, 0.88-1.05; P = .39). Systolic pressure was related to AF (HR, 1.14 per 20-mm Hg increment; 95% CI, 1.04-1.25; P = .006); however, if diastolic pressure was added, model fit improved and the diastolic relation was inverse (adjusted HR, 0.87 per 10-mm Hg increment; 95% CI, 0.78-0.96; P = .01), consistent with a pulse pressure effect. Among patients with interpretable echocardiographic images, the association between pulse pressure and AF persisted in models that adjusted for baseline left atrial dimension, left ventricular mass, and left ventricular fractional shortening (adjusted HR, 1.23; 95% CI, 1.09-1.39; P = .001). CONCLUSION: Pulse pressure is an important risk factor for incident AF in a community-based sample. Further research is needed to determine whether interventions that reduce pulse pressure will limit the growing incidence of AF.

Pulse pressure and risk of new-onset atrial fibrillation. Publishing Authors By Initials

GF Mitchell,RS Vasan,MJ Keyes,H Parise,TJ Wang,MG Larson,RB D'Agostino,WB Kannel,D Levy,EJ Benjamin,

For similar investigative techniques: epidemiologic methods: statistics as topic: probability: risk: risk factors research abstracts see: investigative techniques: epidemiologic methods: statistics as topic: probability: risk: risk factors research

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Pulse pressure and risk of new-onset atrial fibrillation. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: JAMA : the journal of the American Medical Associa

VOLUME: 297

Page Numbers: 709-15

Journal Abbreviation: JAMA

ISSN: 1538-3598

DAY: 21

MONTH: Feb

YEAR: 2007

Pulse pressure and risk of new-onset atrial fibrillation. Information

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LANGUAGE: eng

NlmUniqueID: 7501160

Pulse pressure and risk of new-onset atrial fibrillation. Keywords Mesh Terms:

KEYWORDS: Risk Factors

MESH TERMS: epidemiology

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Grant and Affiliation Information for Pulse pressure and risk of new-onset atrial fibrillation.

AFFILIATION: Cardiovascular Engineering Inc, Waltham, Mass 02453, USA. garyfmitchell@mindspring.com

Country: United States

AGENCY: United States NHLBI

GRANT: R01-HL70100

ACRONYM: HL

MEDLINETA: JAMA

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