AHA/ACC/SCAI/ACS/ADA SCIENCE ADVISORY
Prevention of Premature Discontinuation of Dual Antiplatelet Therapy in Patients With Coronary Artery StentsA Science Advisory From the American Heart Association, American College of Cardiology, Society for Cardiovascular Angiography and Interventions, American College of Surgeons, and American Dental Association, With Representation From the American College of Physicians*
Cindy L. Grines, MD, FACC,
Robert O. Bonow, MD, FAHA, FACC,
Donald E. Casey, Jr, MD, MPH, MBA, FACP,
Timothy J. Gardner, MD, FAHA, FACC, FACS,
Peter B. Lockhart, DDS, FDS RCSEd,
David J. Moliterno, MD, FAHA, FSCAI, FACC,
Patrick O'Gara, MD, FAHA, FACC and
Patrick Whitlow, MD, FAHA, FACC
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Abstract
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Abstract: Dual antiplatelet therapy with aspirin and a thienopyridine has been shown to reduce cardiac events after coronary stenting. However, many patients and healthcare providers prematurely discontinue dual antiplatelet therapy, which greatly increases the risk of stent thrombosis, myocardial infarction, and death. This advisory stresses the importance of 12 months of dual antiplatelet therapy after placement of a drug-eluting stent and educating the patient and healthcare providers about hazards of premature discontinuation. It also recommends postponing elective surgery for 1 year, and if surgery cannot be deferred, considering the continuation of aspirin during the perioperative period in high-risk patients with drug-eluting stents.
Key Words: AHA Scientific Statements • thrombosis • myocardial infarction • stents • myocardial stunning
After placement of a bare-metal stent, thienopyridines (clopidogrel [Plavix, sanofi-aventis, Bridgewater, NJ] or ticlopidine [Ticlid, Hoffmann-La Roche Inc, Nutley, NJ]), in combination with aspirin therapy, have been shown to dramatically reduce the incidence of early major adverse cardiac events after stent placement compared with aspirin alone or in combination with warfarin (Table 1) (1). In addition, the use of thienopyridine therapy plus aspirin for up to 1 year after non–ST-segment–elevation acute coronary syndromes is known to decrease the incidence of ischemic cardiovascular events and is recommended in the American College of Cardiology/American Heart Association practice guidelines for the treatment of patients undergoing percutaneous coronary intervention and for the medical treatment of patients with non–ST-segment–elevation acute coronary syndromes (2–4). Despite these benefits, antiplatelet therapy is sometimes prematurely discontinued within the first year after stent implantation, either by the patient or by a healthcare provider who may not realize these benefits or the potentially severe consequences of antiplatelet therapy cessation. The leading adverse event associated with early antiplatelet discontinuation is stent thrombosis, and the majority of these events lead to acute myocardial infarction (MI) or death. Therefore, the American Heart Association, working with the American College of Cardiology, the Society for Cardiovascular Angiography and Interventions, the American College of Physicians, the American College of Surgeons, and the American Dental Association, commissioned this advisory to emphasize the potential complications of premature discontinuation of thienopyridine therapy and to address potential strategies to minimize this occurrence.
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TABLE 1 After Bare-Metal Stent Placement, Aspirin Plus Thienopyridine Reduces Cardiac Events Compared With Aspirin Alone or With Oral Antithrombins
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Dual Antiplatelet Therapy for Prevention of Ischemic Cardiovascular Events and Stent Thrombosis
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Current American College of Cardiology/American Heart Association/Society for Cardiovascular Angiography and Interventions recommendations for the prevention of stent thrombosis after coronary stent implantation state that, at a minimum, patients should be treated with clopidogrel 75 mg and aspirin 325 mg for 1 month after bare-metal stent implantation, 3 months after sirolimus drug-eluting stent (DES) implantation, 6 months after paclitaxel DES implantation, and ideally, up to 12 months if they are not at high risk for bleeding (3). These recommendations were based on the antiplatelet regimen used in trials that were conducted to obtain US Food and Drug Administration approval (low-risk lesions in low-risk patients) and the anticipated time it takes for the metal stent struts to become adequately endothelialized to reduce the risk of stent thrombosis. However, DESs are now being used in high-risk lesions, and reports have suggested that they may be associated with delayed (or absent) endothelialization (5,6), localized hypersensitivity reactions (7,8), and late stent thrombosis.
Stent thrombosis most commonly occurs in the first month after stent implantation, and in this interval, it is referred to as "subacute stent thrombosis." However, numerous cases of "late" stent thrombosis, particularly in patients who have been treated with DES, have been described as occurring months or even years after stent implantation (19–21). In the majority of cases, stent thrombosis is a catastrophic event, resulting in life-threatening complications. In a pooled analysis of 6 trials and registries from the 1990s, the incidence of death or MI associated with angiographically documented stent thrombosis was found to be 64.4% (14). Mortality rates due to presumed or documented stent thrombosis range from 20% to 45% (19–21).
In the current era of dual antiplatelet therapy, the average reported occurrence of subacute stent thrombosis is 1% (16–22). The timing of thrombosis appears to be delayed in DES. Late (1 to 12 months) stent thrombosis was not readily apparent with bare-metal stents yet was reported to occur in 0.19% of patients in a large DES registry (18). Predictors of late stent thrombosis have included stenting of small vessels, multiple lesions, long stents, overlapping stents, ostial or bifurcation lesions, prior brachytherapy, suboptimal stent result (underexpansion, malapposition, or residual dissection), low ejection fraction, advanced age, diabetes mellitus, renal failure, acute coronary syndrome, and premature discontinuation of antiplatelet agents (Table 2) (9,13,18–21).
On December 7–8, 2006, the US Food and Drug Administration convened an advisory panel meeting to discuss stent thrombosis and the overall safety of DES (23). They concluded that there appears to be a numerical excess of late stent thrombosis with DES, but the magnitude is uncertain; and the off-label use of DES, as with bare-metal stents, is associated with increased risk when compared with on-label use. The panel also agreed that, in the future, new DES studies should have longer follow-up, enroll greater numbers of patients, and include stent thrombosis as a study end point. The advisory panel concurred with the joint clinical practice guideline recommendation (3) for 12 months of dual antiplatelet therapy after placement of a drug-eluting stent in patients who are not at high risk of bleeding. However, they agreed that a large randomized trial looking specifically at appropriate duration of dual antiplatelet therapy is needed.
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Premature Thienopyridine Discontinuation and Stent Thrombosis
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The premature discontinuation of thienopyridine therapy is associated with a marked increase in the risk of stent thrombosis and is the leading independent predictor for stent thrombosis in multivariate analyses. Although the number of actual stent thromboses reported in individual studies is modest, the findings are noteworthy.
In a large observational cohort study of patients treated with DES, stent thrombosis occurred in a striking 29% of patients in whom antiplatelet therapy was discontinued prematurely (9). This discontinuation of antiplatelet therapy was associated with a hazard ratio of 161 (95% confidence interval 26 to 998) for the occurrence of subacute stent thrombosis and a hazard ratio of 57 (95% confidence interval 15 to 220) for the occurrence of late (>30 days) stent thrombosis.
In a single-site study of 652 patients treated with sirolimus DES, premature discontinuation of clopidogrel was associated with an  30-fold greater risk of stent thrombosis, with >25% of patients who discontinued clopidogrel therapy within the first month suffering stent thrombosis (17). Park et al (13) reported on 1911 consecutive patients with DES followed up for a median of 19.4 months. Five (7.8%) of 64 patients with premature interruption of aspirin, clopidogrel, or both experienced stent thrombosis.
Spertus and colleagues (19) published an analysis from the PREMIER (Prospective Registry Evaluating Myocardial Infarction: Events and Recovery) registry of 500 patients with acute MI treated with DES. The mortality rate over the next 11 months of those who stopped thienopyridine therapy was 7.5% compared with 0.7% in those who had not stopped therapy (hazard ratio 9.0, P<0.0001). Although the rates of stent thrombosis were not reported, it is reasonable to presume that many of the deaths were related to coronary artery disease.
Pfisterer et al (20) randomized 746 patients (1133 lesions) to DES versus bare-metal stents. All patients received dual antiplatelet therapy for 6 months, after which aspirin alone was continued. At 30 days, rates of death or nonfatal MI were lower in the DES group (2.0% versus 4.69%, P=0.05); however, after discontinuation of clopidogrel at 6 months, late stent thrombosis (2.6% versus 1.3%) and death or nonfatal MI (4.9% versus 1.3%) occurred more frequently in the DES group.
Similarly, Eisenstein et al (21) reported an observational study in 4666 patients with follow-up at 6, 12, and 24 months after stenting. In patients treated with bare-metal stents, continued use of clopidogrel did not influence death or MI rates between 6 and 24 months. Conversely, in DES patients, extended use of clopidogrel at 6, 12, and 24 months was associated with reduced death or death/MI rates at all time intervals.
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Stent Thrombosis After Noncardiac Surgery
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Several reports have specifically described incidents of stent thrombosis that occurred after the discontinuation of antiplatelet therapy for noncardiac surgery among patients recently treated with coronary stents (24–26). Kaluza et al (25) reported on 40 patients treated with bare-metal stents who underwent noncardiac surgery within 6 weeks of stent implantation. Seven patients had an MI, of which 6 were fatal. Stent thrombosis was presumed to be the cause of all MIs. In 5 of 7 cases, thienopyridine therapy (ticlopidine) had been withheld before surgery. In a similar analysis of 47 patients who underwent noncardiac surgery within 90 days of bare-metal stent implantation, 6 of the 7 patients in whom thienopyridine therapy was discontinued died "in a manner suggestive of stent thrombosis" (26).
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Factors Related to Premature Cessation of Thienopyridine Therapy
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Premature cessation of thienopyridine may occur for several different reasons. The cost of clopidogrel (approximately $4 daily) has been cited as one reason patients discontinue (or do not renew) their therapy (27). It is unclear whether the introduction of modestly lower-cost generic clopidogrel will significantly affect this issue. In an analysis from the PREMIER registry (19), factors identified with premature discontinuation of thienopyridine therapy included older age, not having completed high school, not being married, not receiving discharge instructions for medication use, not being referred for cardiac rehabilitation, greater likelihood of having preexistent cardiovascular disease or anemia, and not seeking health care because of cost. The study authors concluded that "additional patient education about the rationale for and importance of continuing thienopyridine treatment may be needed—particularly for patients with less formal education."
Dual antiplatelet therapy is not without risk. Like all antithrombotic agents, both aspirin and clopidogrel increase the risk of bleeding compared with placebo. When compared with aspirin, clopidogrel may be associated with lower risk of GI bleeding (28). However, when clopidogrel was combined with aspirin and administered for prolonged duration (up to 28 months), randomized trials demonstrated an absolute increase (ranging from 0.4% to 1.0%) in major bleeding, compared with aspirin alone (28).
Antiplatelet therapy may be stopped at the instruction of physicians, dentists, and other healthcare providers who are to perform an invasive or surgical procedure on the patient because of misguided concerns about excessive procedure-related bleeding. Unfortunately, many patients are routinely instructed to stop "blood thinners" before such procedures without a thorough evaluation of the rationale for such therapy and without distinction between warfarin and antiplatelet agents. Many of these procedures (eg, minor surgery, teeth cleaning, and tooth extraction) can likely be performed at no or only minor risk of bleeding or could be delayed until the prescribed antiplatelet regimen is completed. Although there is a longstanding concern on the part of dental practitioners about the possibility of prolonged bleeding during and after invasive dental procedures on patients receiving antiplatelet drugs, a recent prospective study of single tooth extractions on patients randomized to aspirin versus a placebo failed to show a statistically significant difference in postoperative bleeding (29). Although there are no prospective studies of invasive dental procedures on patients taking a thienopyridine alone or in combination with aspirin, there are also no well-documented cases of clinically significant bleeding after dental procedures, including multiple dental extractions. Given the relative ease with which the incidence and severity of oral bleeding can be reduced with local measures during surgery (eg, absorbable gelatin sponge and sutures) and the unlikely occurrence of bleeding once an initial clot has formed, there is little or no indication to interrupt antiplatelet drugs for dental procedures (30).
The likelihood of increased bleeding and/or an increased requirement for blood transfusion in patients undergoing major noncardiac surgery can be inferred from reports of increased bleeding when cardiac surgery (including off-pump coronary bypass grafting) is undertaken in patients taking a thienopyridine drug. Independent documentation of the scope of this risk of increased bleeding during noncardiac surgery, however, is not available. If one must discontinue the thienopyridine drug before major surgery to reduce the risk of excessive bleeding, consideration should be given to continuing aspirin for its antiplatelet action to mitigate the risk of late stent thrombosis and to restarting the thienopyridine as soon as possible. Although some have attempted "bridging" stent patients with antithrombin agents, there is no evidence of a benefit of warfarin (Table 1) or other antithrombins, and there is an increased risk of bleeding (31). Similarly, there are no data to support the use of "bridging" glycoprotein IIb/IIIa agents.
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Summary and Recommendations
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Thienopyridine therapy in combination with aspirin has become the mainstay antiplatelet treatment strategy for the prevention of stent thrombosis. Premature discontinuation of antiplatelet therapy markedly increases the risk of stent thrombosis, a catastrophic event that frequently leads to MI and/or death. Factors contributing to premature cessation of thienopyridine therapy include drug cost, physician/dentist instructions to patients to discontinue therapy before procedures, and inadequate patient education and understanding about the importance of continuing therapy.
To eliminate premature discontinuation of thienopyridine therapy, this advisory group gives the following recommendations. - 1 Before implantation of a stent, the physician should discuss the need for dual antiplatelet therapy. In patients not expected to comply with 12 months of thienopyridine therapy, whether for economic or other reasons, strong consideration should be given to avoiding a DES.
- 2 In patients who are undergoing preparation for percutaneous coronary intervention and are likely to require invasive or surgical procedures within the next 12 months, consideration should be given to implantation of a bare-metal stent or performance of balloon angioplasty with provisional stent implantation instead of the routine use of a DES.
- 3 A greater effort by healthcare professionals must be made before patient discharge to ensure patients are properly and thoroughly educated about the reasons they are prescribed thienopyridines and the significant risks associated with prematurely discontinuing such therapy.
- 4 Patients should be specifically instructed before hospital discharge to contact their treating cardiologist before stopping any antiplatelet therapy, even if instructed to stop such therapy by another healthcare provider.
- 5 Healthcare providers who perform invasive or surgical procedures and are concerned about periprocedural and postprocedural bleeding must be made aware of the potentially catastrophic risks of premature discontinuation of thienopyridine therapy. Such professionals who perform these procedures should contact the patient's cardiologist if issues regarding the patient's antiplatelet therapy are unclear, to discuss optimal patient management strategy.
- 6 Elective procedures for which there is significant risk of perioperative or postoperative bleeding should be deferred until patients have completed an appropriate course of thienopyridine therapy (12 months after DES implantation if they are not at high risk of bleeding and a minimum of 1 month for bare-metal stent implantation).
- 7 For patients treated with DES who are to undergo subsequent procedures that mandate discontinuation of thienopyridine therapy, aspirin should be continued if at all possible and the thienopyridine restarted as soon as possible after the procedure because of concerns about late-stent hellothrombosis.
- 8 The healthcare industry, insurers, the US Congress, and the pharmaceutical industry should ensure that issues such as drug cost do not cause patients to prematurely discontinue thienopyridine therapy and to thus incur catastrophic cardiovascular complications.
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Disclosures
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Writing Group Disclosures
| Writing Group Member |
Organization Represented |
Employment |
Research Grant |
Other Research Support |
Speakers' Bureau/ Honoraria |
Ownership Interest |
Consultant/ Advisory Board |
Other |
|
| Cindy L. Grines |
AHA Representative |
William Beaumont Hospital |
None |
None |
None |
None |
None |
None |
| Robert O. Bonow |
AHA Representative |
Northwestern University |
None |
None |
None |
None |
None |
None |
| Donald E. Casey, Jr |
ACP Representative |
Atlantic Health |
None |
None |
None |
None |
None |
None |
| Timothy J. Gardner |
ACS Representative |
Christiana Care Health System |
None |
None |
None |
None |
None |
None |
| Peter B. Lockhart |
ADA Representative |
Carolinas Medical Center |
None |
None |
None |
None |
None |
None |
| David J. Moliterno |
SCAI Representative |
University of Kentucky |
None |
None |
None |
None |
None |
None |
| Patrick O'Gara |
ACC Representative |
Brigham and Women's Hospital |
None |
None |
None |
None |
None |
None |
| Patrick Whitlow |
ACC Representative |
Cleveland Clinic |
None |
None |
None |
None |
ICON Interventional Systems,*
Medlogics* |
None |
|
| * Modest. |
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AHA indicates American Heart Association; ACP, American College of Physicians; ACS, American College of Surgeons; ADA, American Dental Association; SCAI, Society for Cardiovascular Angiography and Interventions; and ACC, American College of Cardiology.
This table represents the relationships of writing group members that may be perceived as actual or reasonably perceived conflicts of interest as reported on the Disclosure Questionnaire, which all members of the writing group are required to complete and submit. A relationship is considered to be "significant" if (1) the person receives $10 000 or more during any 12-month period or 5% or more of the person's gross income; or (2) the person owns 5% or more of the voting stock or share of the entity or owns $10 000 or more of the fair market value of the entity. A relationship is considered to be "modest" if it is less than "significant" under the preceding definition.
Reviewer Disclosures
| Reviewer |
Employment |
Research Grant |
Other Research Support |
Speakers' Bureau/ Honoraria |
Expert Witness |
Ownership Interest |
Consultant/ Advisory Board |
Other |
|
| Elliott M. Antman |
Brigham and Women's Hospital |
Eli Lilly* |
None |
None |
None |
None |
None |
None |
| Gregory J. Dehmer |
Texas A&M University College of Medicine and Scott & White Clinic |
None |
None |
None |
None |
None |
None |
None |
| T. Bruce Ferguson |
East Carolina University |
None |
None |
None |
None |
None |
None |
None |
| Raymond J. Gibbons |
Mayo Clinic |
Radiant Medical, KAI Pharmaceuticals, TargeGen, TherOx |
None |
None |
None |
None |
Hawaii Biotech,*
TIMI 37A* |
None |
| Arthur H. Jeske |
University of Texas Health Science Center, Houston |
None |
None |
None |
None |
None |
None |
None |
| Vincenza Snow |
American College of Physicians |
None |
None |
None |
None |
None |
None |
None |
|
| * Modest. |
| Significant. |
|
This table represents the relationships of reviewers that may be perceived as actual or reasonably perceived conflicts of interest as reported on the Disclosure Questionnaire, which all reviewers are required to complete and submit. A relationship is considered to be "significant" if (1) the person receives $10 000 or more during any 12-month period or 5% or more of the person's gross income; or (2) the person owns 5% or more of the voting stock or share of the entity or owns $10 000 or more of the fair market value of the entity. A relationship is considered to be "modest" if it is less than "significant" under the preceding definition.
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Footnotes
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The American Heart Association, the American College of Cardiology, the Society for Cardiovascular Angiography and Interventions, the American College of Surgeons, and the American Dental Association make every effort to avoid any actual or potential conflicts of interest that may arise as a result of an outside relationship or a personal, professional, or business interest of a member of the writing panel. Specifically, all members of the writing group are required to complete and submit a Disclosure Questionnaire showing all such relationships that might be perceived as real or potential conflicts of interest.
This statement was approved by the American Heart Association Science Advisory and Coordinating Committee on December 21, 2006, by the American College of Cardiology on December 28, 2006, by the Society for Cardiovascular Angiography and Interventions on December 20, 2006, by the American College of Surgeons on December 16, 2006, and by the American Dental Association on December 17, 2006.
When citing this document, the American College of Cardiology Foundation requests that the following citation format be used: Grines C, Bonow RO, Casey DE, Jr., Gardner TJ, Lockhart PB, Moliterno DJ, O'Gara P, Whitlow P. Prevention of premature discontinuation of dual antiplatelet therapy in patients with coronary artery stents: a science advisory from the American Heart Association, American College of Cardiology, Society for Cardiovascular Angiography and Interventions, American College of Surgeons, and American Dental Association, with representation from the American College of Physicians. J Am Coll Cardiol 2007:49;734–9.
This article has been copublished with the American Heart Association and the Society for Cardiovascular Angiography and Interventions.
Copies: For copies of this document, please contact Elsevier Inc. Reprint Department, fax (212) 633-3820, e-mail reprints{at}elsevier.com.
Permissions: Modification, alteration, enhancement, and/or distribution of this document are not permitted without the express permission of the American Heart Association. Instructions for obtaining permission are located at http://www.americanheart.org/presenter.jhtml?Identifier=4431. A link to the "Permission Request Form" appears on the right side of the page.
* Representation does not imply endorsement by the American College of Physicians. 
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F. Marin, R. Gonzalez-Conejero, P. Capranzano, T. A. Bass, V. Roldan, and D. J. Angiolillo
Pharmacogenetics in cardiovascular antithrombotic therapy.
J. Am. Coll. Cardiol.,
September 15, 2009;
54(12):
1041 - 1057.
[Abstract]
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M. T. Roe, A. Y. Chen, C. P. Cannon, S. Rao, J. Rumsfeld, D. J. Magid, R. Brindis, L. W. Klein, W. B. Gibler, E. M. Ohman, et al.
Temporal Changes in the Use of Drug-Eluting Stents for Patients With Non-ST-Segment-Elevation Myocardial Infarction Undergoing Percutaneous Coronary Intervention From 2006 to 2008: Results From the Can Rapid risk stratification of Unstable angina patients Supress ADverse outcomes with Early implementation of the ACC/AHA guidelines (CRUSADE) and Acute Coronary Treatment and Intervention Outcomes Network-Get With The Guidelines (ACTION-GWTG) Registries
Circ Cardiovasc Qual Outcomes,
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[Abstract]
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M Luckie, R S Khattar, and D Fraser
Non-cardiac surgery and antiplatelet therapy following coronary artery stenting
Heart,
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[Abstract]
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J. O. Lokhandwala, P. J.M. Best, J. H. Butterfield, K. A. Skelding, T. Scott, J. C. Blankenship, J. W. Buckley, and P. B. Berger
Frequency of Allergic or Hematologic Adverse Reactions to Ticlopidine Among Patients With Allergic or Hematologic Adverse Reactions to Clopidogrel
Circ Cardiovasc Interv,
August 1, 2009;
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[Abstract]
[Full Text]
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J. M. Lasala, D. A. Cox, D. Dobies, K. Baran, W. B. Bachinsky, E. W. Rogers, J. A. Breall, D. H. Lewis, A. Song, R. M. Starzyk, et al.
Drug-Eluting Stent Thrombosis in Routine Clinical Practice: Two-Year Outcomes and Predictors From the TAXUS ARRIVE Registries
Circ Cardiovasc Interv,
August 1, 2009;
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[Abstract]
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D. R. Holmes Jr, D. J. Kereiakes, N. S. Kleiman, D. J. Moliterno, G. Patti, and C. L. Grines
Combining Antiplatelet and Anticoagulant Therapies.
J. Am. Coll. Cardiol.,
July 7, 2009;
54(2):
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[Abstract]
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J. P. Chen, D. Hou, L. Pendyala, J. A. Goudevenos, and N. G. Kounis
Drug-Eluting Stent Thrombosis: The Kounis Hypersensitivity-Associated Acute Coronary Syndrome Revisited
J. Am. Coll. Cardiol. Intv.,
July 1, 2009;
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[Abstract]
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F. Marin, P. Kirchhof, and G. Y.H. Lip
Antithrombotic therapy use for patients with atrial fibrillation undergoing percutaneous coronary intervention: new data in an area of limited evidence
Europace,
July 1, 2009;
11(7):
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H. Thiele, P. Neumann-Schniedewind, S. Jacobs, E. Boudriot, T. Walther, F.-W. Mohr, G. Schuler, and V. Falk
Randomized Comparison of Minimally Invasive Direct Coronary Artery Bypass Surgery Versus Sirolimus-Eluting Stenting in Isolated Proximal Left Anterior Descending Coronary Artery Stenosis
J. Am. Coll. Cardiol.,
June 23, 2009;
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[Abstract]
[Full Text]
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A. C.Y. To, G. Armstrong, I. Zeng, and M. W.I. Webster
Noncardiac Surgery and Bleeding After Percutaneous Coronary Intervention
Circ Cardiovasc Interv,
June 1, 2009;
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[Abstract]
[Full Text]
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K. F. Mauck and S. C. Litin
Clinical Pearls in Perioperative Medicine
Mayo Clin. Proc.,
June 1, 2009;
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S. Verheye, P. Agostoni, C. L. Dubois, J. Dens, J. Ormiston, S. Worthley, B. Trauthen, T. Hasegawa, B.-K. Koo, P. J. Fitzgerald, et al.
9-Month Clinical, Angiographic, and Intravascular Ultrasound Results of a Prospective Evaluation of the Axxess Self-Expanding Biolimus A9-Eluting Stent in Coronary Bifurcation Lesions: The DIVERGE (Drug-Eluting Stent Intervention for Treating Side Branches Effectively) Study
J. Am. Coll. Cardiol.,
March 24, 2009;
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[Abstract]
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C. Tamburino, A. La Manna, M. E. Di Salvo, G. Sacchetta, D. Capodanno, R. Mehran, G. Dangas, T. Corcos, and F. Prati
First-in-Man 1-Year Clinical Outcomes of the Catania Coronary Stent System With Nanothin Polyzene-F in De Novo Native Coronary Artery Lesions: The ATLANTA (Assessment of The LAtest Non-Thrombogenic Angioplasty stent) Trial
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March 1, 2009;
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[Abstract]
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M. Cohen
Expanding the Recognition and Assessment of Bleeding Events Associated With Antiplatelet Therapy in Primary Care
Mayo Clin. Proc.,
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[Abstract]
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W. K. Freeman and R. J. Gibbons
Perioperative Cardiovascular Assessment of Patients Undergoing Noncardiac Surgery
Mayo Clin. Proc.,
January 1, 2009;
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[Abstract]
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R. J. Shemin
Coronary Artery Bypass Grafting Versus Stenting for Unprotected Left Main Coronary Artery Disease: Where Lies the Body of Proof?
Circulation,
December 2, 2008;
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P. Garg, S.-L. T. Normand, T. S. Silbaugh, R. E. Wolf, K. Zelevinsky, A. Lovett, M. R. Varma, Z. Zhou, and L. Mauri
Drug-Eluting or Bare-Metal Stenting in Patients With Diabetes Mellitus: Results From the Massachusetts Data Analysis Center Registry
Circulation,
November 25, 2008;
118(22):
2277 - 2285.
[Abstract]
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D. L. Bhatt, J. Scheiman, N. S. Abraham, E. M. Antman, F. K.L. Chan, C. D. Furberg, D. A. Johnson, K. W. Mahaffey, E. M. Quigley, R. A. Harrington, et al.
ACCF/ACG/AHA 2008 Expert Consensus Document on Reducing the Gastrointestinal Risks of Antiplatelet Therapy and NSAID Use: A Report of the American College of Cardiology Foundation Task Force on Clinical Expert Consensus Documents
J. Am. Coll. Cardiol.,
October 28, 2008;
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Writing Committee Members, D. L. Bhatt, J. Scheiman, N. S. Abraham, E. M. Antman, F. K.L. Chan, C. D. Furberg, D. A. Johnson, K. W. Mahaffey, and E. M. Quigley
ACCF/ACG/AHA 2008 Expert Consensus Document on Reducing the Gastrointestinal Risks of Antiplatelet Therapy and NSAID Use: A Report of the American College of Cardiology Foundation Task Force on Clinical Expert Consensus Documents
Circulation,
October 28, 2008;
118(18):
1894 - 1909.
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L. Mauri, T. S. Silbaugh, R. E. Wolf, K. Zelevinsky, A. Lovett, Z. Zhou, F. S. Resnic, and S.-L. T. Normand
Long-Term Clinical Outcomes After Drug-Eluting and Bare-Metal Stenting in Massachusetts
Circulation,
October 28, 2008;
118(18):
1817 - 1827.
[Abstract]
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B. Shoulders-Odom
Management of Patients After Percutaneous Coronary Interventions
Crit. Care Nurse,
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26 - 40.
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R. P. Giugliano and E. Braunwald
The Year in Non-ST-Segment Elevation Acute Coronary Syndrome
J. Am. Coll. Cardiol.,
September 23, 2008;
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1095 - 1103.
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D. R. Holmes Jr, P. S. Teirstein, L. Satler, M. H. Sketch Jr, J. J. Popma, L. Mauri, H. Wang, P. A. Schleckser, S. A. Cohen, and SISR Investigators
3-Year Follow-Up of the SISR (Sirolimus-Eluting Stents Versus Vascular Brachytherapy for In-Stent Restenosis) Trial
J. Am. Coll. Cardiol. Intv.,
August 1, 2008;
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439 - 448.
[Abstract]
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S. R. Dixon, C. L. Grines, and W. W. O'Neill
The year in interventional cardiology.
J. Am. Coll. Cardiol.,
June 17, 2008;
51(24):
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S.-H. Choi, A. Prasad, and S. Tsimikas
The evolution of thienopyridine therapy clopidogrel duration, diabetes, and drug-eluting stents.
J. Am. Coll. Cardiol.,
June 10, 2008;
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2228 - 2229.
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P. Collins, C. M. Webb, C. F. Chong, N. E. Moat, and for the Radial Artery Versus Saphenous Vein Patenc
Radial Artery Versus Saphenous Vein Patency Randomized Trial: Five-Year Angiographic Follow-Up
Circulation,
June 3, 2008;
117(22):
2859 - 2864.
[Abstract]
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S. Jimenez-Valero, R. Moreno, A. Sanchez-Recalde, G. Galeote, L. Calvo, A. Viana, E. Lopez de Sa, and J. Lopez-Sendon
Review: Avoiding restenosis: is there a role for glucocorticoids in the drug-eluting stent era?
Therapeutic Advances in Cardiovascular Disease,
June 1, 2008;
2(3):
137 - 146.
[Abstract]
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J. D. Douketis, P. B. Berger, A. S. Dunn, A. K. Jaffer, A. C. Spyropoulos, R. C. Becker, and J. Ansell
The Perioperative Management of Antithrombotic Therapy: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines (8th Edition)
Chest,
June 1, 2008;
133(6_suppl):
299S - 339S.
[Abstract]
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E. M. Antman, S. D. Wiviott, S. A. Murphy, J. Voitk, Y. Hasin, P. Widimsky, H. Chandna, W. Macias, C. H. McCabe, and E. Braunwald
Early and Late Benefits of Prasugrel in Patients With Acute Coronary Syndromes Undergoing Percutaneous Coronary Intervention: A TRITON-TIMI 38 (TRial to Assess Improvement in Therapeutic Outcomes by Optimizing Platelet InhibitioN with Prasugrel-Thrombolysis In Myocardial Infarction) Analysis
J. Am. Coll. Cardiol.,
May 27, 2008;
51(21):
2028 - 2033.
[Abstract]
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C. L. Grines, J. A. Goldstein, and R. D. Safian
Should We Routinely Use Drug-Eluting Stents for Acute Myocardial Infarction?: Let's Wait and See
J. Am. Coll. Cardiol. Intv.,
April 1, 2008;
1(2):
136 - 138.
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D. P. Taggart, S. Kaul, W. E. Boden, T. B. Ferguson Jr, R. A. Guyton, M. J. Mack, P. T. Sergeant, R. J. Shemin, P. K. Smith, and S. Yusuf
Revascularization for unprotected left main stem coronary artery stenosis stenting or surgery.
J. Am. Coll. Cardiol.,
March 4, 2008;
51(9):
885 - 892.
[Abstract]
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R. J. Applegate, M. T. Sacrinty, M. A. Kutcher, R. M. Santos, S. K. Gandhi, T. T. Baki, and W. C. Little
"Off-label" stent therapy 2-year comparison of drug-eluting versus bare-metal stents.
J. Am. Coll. Cardiol.,
February 12, 2008;
51(6):
607 - 614.
[Abstract]
[Full Text]
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C. L. Grines
Off-label use of drug-eluting stents putting it in perspective.
J. Am. Coll. Cardiol.,
February 12, 2008;
51(6):
615 - 617.
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R. Rogacka, A. Chieffo, I. Michev, F. Airoldi, A. Latib, J. Cosgrave, M. Montorfano, M. Carlino, G. M. Sangiorgi, A. Castelli, et al.
Dual antiplatelet therapy after percutaneous coronary intervention with stent implantation in patients taking chronic oral anticoagulation.
J. Am. Coll. Cardiol. Intv.,
February 1, 2008;
1(1):
56 - 61.
[Abstract]
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American College of Cardiology/American Heart Asso, 2007 Writing Group to Review New Evidence and Upda, S. B. King III, S. C. Smith Jr, J. W. Hirshfeld Jr, A. K. Jacobs, D. A. Morrison, and D. O. Williams
2007 Focused Update of the ACC/AHA/SCAI 2005 Guideline Update for Percutaneous Coronary Intervention
J. Am. Coll. Cardiol.,
January 15, 2008;
51(2):
172 - 209.
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S. B. King III, S. C. Smith Jr, J. W. Hirshfeld Jr, A. K. Jacobs, D. A. Morrison, D. O. Williams, 2005 WRITING COMMITTEE MEMBERS, S. C. Smith Jr, T. E. Feldman, J. W. Hirshfeld Jr, et al.
2007 Focused Update of the ACC/AHA/SCAI 2005 Guideline Update for Percutaneous Coronary Intervention: A Report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines: 2007 Writing Group to Review New Evidence and Update the ACC/AHA/SCAI 2005 Guideline Update for Percutaneous Coronary Intervention, Writing on Behalf of the 2005 Writing Committee
Circulation,
January 15, 2008;
117(2):
261 - 295.
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K. F. von Tiehl, M. J. Price, R. Valencia, K. J. Ludington, P. S. Teirstein, and R. A. Simon
Clopidogrel Desensitization After Drug-Eluting Stent Placement
J. Am. Coll. Cardiol.,
November 20, 2007;
50(21):
2039 - 2043.
[Abstract]
[Full Text]
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E. C. Nemergut, K. E. Littlewood, and D. G. de Souza
Preoperative Hematocrit Levels and Outcomes After Noncardiac Surgery
JAMA,
October 3, 2007;
298(13):
1512 - 1513.
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A. Schomig, A. Dibra, S. Windecker, J. Mehilli, J. Suarez de Lezo, C. Kaiser, S.-J. Park, J.-J. Goy, J.-H. Lee, E. Di Lorenzo, et al.
A Meta-Analysis of 16 Randomized Trials of Sirolimus-Eluting Stents Versus Paclitaxel-Eluting Stents in Patients With Coronary Artery Disease
J. Am. Coll. Cardiol.,
October 2, 2007;
50(14):
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[Abstract]
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P.-G. Chassot, A. Delabays, and D. R. Spahn
Perioperative antiplatelet therapy: the case for continuing therapy in patients at risk of myocardial infarction
Br. J. Anaesth.,
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99(3):
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S. L. Cohn and G. W. Smetana
Update in Perioperative Medicine
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C. Bode and M. Zehender
The use of antiplatelet agents following percutaneous coronary intervention: focus on late stent thrombosis
Eur. Heart J. Suppl.,
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P. Vermeersch, P. Agostoni, S. Verheye, P. Van den Heuvel, C. Convens, F. Van den Branden, G. Van Langenhove, and DELAYED RRISC (Death and Events at Long-term follo
Increased Late Mortality After Sirolimus-Eluting Stents Versus Bare-Metal Stents in Diseased Saphenous Vein Grafts: Results From the Randomized DELAYED RRISC Trial
J. Am. Coll. Cardiol.,
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A. Kastrati and A. Schomig
Drug-Eluting Stents: Is Their Future as Bright as Their Past?
J. Am. Coll. Cardiol.,
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R. Jaffe and B. H. Strauss
Late and Very Late Thrombosis of Drug-Eluting Stents: Evolving Concepts and Perspectives
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D. R. Holmes Jr, D. J. Kereiakes, W. K. Laskey, A. Colombo, S. G. Ellis, T. D. Henry, J. J. Popma, P. W.J.C. Serruys, T. Kimura, D. O. Williams, et al.
Thrombosis and Drug-Eluting Stents: An Objective Appraisal
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E. S. Brilakis, S. Banerjee, and P. B. Berger
Perioperative Management of Patients With Coronary Stents
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J. T. Dove, D. J. Moliterno, W. D. Weaver, and M. E. Shelton
President's Page: Drug-Eluting Stents in Contemporary Practice--A Call for a Real-World, Open-Entry, Device-Tracking Registry
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D. P Taggart
Coronary revascularisation
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Abstract
Dual Antiplatelet Therapy for...