Impact of Major Bleeding on Long-Term Mortality in Anemic Versus Nonanemic Patients Undergoing Percutaneous Coronary Intervention Using Bivalirudin

Bleeding complications after percutaneous coronary intervention (PCI) have been associated with higher short and long-term mortality. Bivalirudin has been shown to reduce bleeding complications in patients who underwent PCI; however, the impact of anemia on bleeding complications and long-term morta...

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Veröffentlicht in:The American journal of cardiology 2014-05, Vol.113 (9), p.1481-1486
Hauptverfasser: Ali, Ziad A., MD, DPhil, Poludasu, Shyam, MD, Qureshi, Yasir H., MD, Krishnan, Prakash, MD, Ali, Ayyaz A., MD, Tatonetti, Nicholas, PhD, Downey, Peter, MD, Zalewski, Adrian, BSc, Nazif, Tamim, MD, George, Isaac, MD, Mandava, Anupa, MD, Baber, Usman, MD, Dangas, George, MD, Mehran, Roxana, MD, Kini, Annapoorna S., MD, Sharma, Samin K., MD
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container_issue 9
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container_title The American journal of cardiology
container_volume 113
creator Ali, Ziad A., MD, DPhil
Poludasu, Shyam, MD
Qureshi, Yasir H., MD
Krishnan, Prakash, MD
Ali, Ayyaz A., MD
Tatonetti, Nicholas, PhD
Downey, Peter, MD
Zalewski, Adrian, BSc
Nazif, Tamim, MD
George, Isaac, MD
Mandava, Anupa, MD
Baber, Usman, MD
Dangas, George, MD
Mehran, Roxana, MD
Kini, Annapoorna S., MD
Sharma, Samin K., MD
description Bleeding complications after percutaneous coronary intervention (PCI) have been associated with higher short and long-term mortality. Bivalirudin has been shown to reduce bleeding complications in patients who underwent PCI; however, the impact of anemia on bleeding complications and long-term mortality has not been studied. A total of 11,991 patients who underwent PCI over a period of 8 years with bivalirudin as the primary antithrombotic agent were included. Anemia was defined according to the World Health Organization definition. Bleeding complications were prospectively collected. Survival analysis was performed using multivariable Cox proportional hazards models. Of the 11,991 patients, 4,815 patients (40%) had baseline anemia. Major bleeding occurred in 3.3% of patients with anemia compared with 0.7% of patients without anemia (p
doi_str_mv 10.1016/j.amjcard.2014.01.427
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Bivalirudin has been shown to reduce bleeding complications in patients who underwent PCI; however, the impact of anemia on bleeding complications and long-term mortality has not been studied. A total of 11,991 patients who underwent PCI over a period of 8 years with bivalirudin as the primary antithrombotic agent were included. Anemia was defined according to the World Health Organization definition. Bleeding complications were prospectively collected. Survival analysis was performed using multivariable Cox proportional hazards models. Of the 11,991 patients, 4,815 patients (40%) had baseline anemia. Major bleeding occurred in 3.3% of patients with anemia compared with 0.7% of patients without anemia (p &lt;0.001) driven largely by transfusion events. In the overall study population, major bleeding was a significant predictor of mortality (hazard ratio [HR] 1.4, 95% confidence interval [CI] 1.04 to 1.8, p = 0.027) at a mean follow-up of 2.6 years (interquartile range 1.4 to 3.5). In patients with anemia, major bleeding remained an independent predictor of mortality (HR 1.5, 95% CI 1.1 to 2.0, p = 0.008); however, in patients without anemia, it did not (HR 1.25, 95% CI 0.52 to 3.03, p = 0.62). 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Bivalirudin has been shown to reduce bleeding complications in patients who underwent PCI; however, the impact of anemia on bleeding complications and long-term mortality has not been studied. A total of 11,991 patients who underwent PCI over a period of 8 years with bivalirudin as the primary antithrombotic agent were included. Anemia was defined according to the World Health Organization definition. Bleeding complications were prospectively collected. Survival analysis was performed using multivariable Cox proportional hazards models. Of the 11,991 patients, 4,815 patients (40%) had baseline anemia. Major bleeding occurred in 3.3% of patients with anemia compared with 0.7% of patients without anemia (p &lt;0.001) driven largely by transfusion events. In the overall study population, major bleeding was a significant predictor of mortality (hazard ratio [HR] 1.4, 95% confidence interval [CI] 1.04 to 1.8, p = 0.027) at a mean follow-up of 2.6 years (interquartile range 1.4 to 3.5). In patients with anemia, major bleeding remained an independent predictor of mortality (HR 1.5, 95% CI 1.1 to 2.0, p = 0.008); however, in patients without anemia, it did not (HR 1.25, 95% CI 0.52 to 3.03, p = 0.62). 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Poludasu, Shyam, MD ; Qureshi, Yasir H., MD ; Krishnan, Prakash, MD ; Ali, Ayyaz A., MD ; Tatonetti, Nicholas, PhD ; Downey, Peter, MD ; Zalewski, Adrian, BSc ; Nazif, Tamim, MD ; George, Isaac, MD ; Mandava, Anupa, MD ; Baber, Usman, MD ; Dangas, George, MD ; Mehran, Roxana, MD ; Kini, Annapoorna S., MD ; Sharma, Samin K., MD</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c514t-82b20aadbf486c7b36deda6e8afd6e6bb4e29ce2f2b48437c6b45ce372fb0b843</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Acute coronary syndromes</topic><topic>Age</topic><topic>Aged</topic><topic>Anemia</topic><topic>Anemia, Hypochromic - complications</topic><topic>Antithrombins - therapeutic use</topic><topic>Body mass index</topic><topic>Cardiovascular</topic><topic>Diabetes</topic><topic>Female</topic><topic>Heart attacks</topic><topic>Hemorrhage - complications</topic><topic>Hirudins</topic><topic>Humans</topic><topic>Kidney diseases</topic><topic>Male</topic><topic>Mortality</topic><topic>Normal distribution</topic><topic>Peptide Fragments - therapeutic use</topic><topic>Percutaneous Coronary Intervention - mortality</topic><topic>Postoperative Complications - mortality</topic><topic>Postoperative Complications - prevention &amp; 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subjects Acute coronary syndromes
Age
Aged
Anemia
Anemia, Hypochromic - complications
Antithrombins - therapeutic use
Body mass index
Cardiovascular
Diabetes
Female
Heart attacks
Hemorrhage - complications
Hirudins
Humans
Kidney diseases
Male
Mortality
Normal distribution
Peptide Fragments - therapeutic use
Percutaneous Coronary Intervention - mortality
Postoperative Complications - mortality
Postoperative Complications - prevention & control
Recombinant Proteins - therapeutic use
Stents
Studies
Variables
title Impact of Major Bleeding on Long-Term Mortality in Anemic Versus Nonanemic Patients Undergoing Percutaneous Coronary Intervention Using Bivalirudin
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