Private practice with Dr Seth Bilazarian

View all posts »

Managing cath-lab interventions in patients taking warfarin

Feb 15, 2010 09:55 EST


Some practitioners argue that patients undergoing chronic anticoagulant management should only ever receive bare-metal stents, while others insist that drug-eluting stents are a possibility, citing successful triple (warfarin/clopidogrel/aspirin) or novel types of dual (warfarin/clopidogrel) antiplatelet therapies. Two recent articles seem to complicate the decision-making process by creating an elaborate treatment algorithm based on risk assessment and arguing for a new modified approach to antiplatelet therapy for those taking warfarin. What is your approach to this dilemma?

See:

Baber U, Akhter M, et al. Efficacy of modified dual antiplatelet therapy combined with warfarin following percutaneous coronary intervention with drug-eluting stents.

J Invasive Cardiol 2010; 22:80-3. Abstract.

 

Patti G, Di Sciascio G. Antithrombotic strategies in patients on oral anticoagulant therapy undergoing percutaneous coronary intervention: a proposed algorithm based on individual risk stratification. Catheter Cardiovasc Interv 2010; 75:128-34. Abstract.

 

Different antithrombotic combinations up risks for bleeding and recurrent MI 

 

ACTIVE-W: Warfarin still the best option for stroke prevention in AF








Your comments
Managing cath-lab interventions in patients taking warfarin
# 1 of 2
February 15, 2010 06:58 (EST)
Christiano

Does anybody have experience with Dabigatran in this case? After RELY what the opinion of our colleagues about this revolutionary new oral anticoagulan? thanks

# 2 of 2
February 21, 2010 11:10 (EST)
N. Tehrani

In my experience, it is not the combination of Plavix and Coumadin that is problematic, but ASA plus the two aformentioned agents. I routinely perform heart caths on patients with INRs in the 2-3 range without reversing the anticoagulation and the predominant majority of the patients who need to be stented are treated with DES. I categorically avoid ASA in these patients, but instead utilize Pletal. I have been using Pletal as a third agent in all patients who are not on Coumadin, since February of 2004 when Pletal became available in the generic form with excellent results. It is an extension of this practice that I have eliminated ASA in patients who are on Coumadin and who have undergone PCI. Looking at a total of over 1500 interventions during this time period, I have not encountered a single instance of bleeding complications in the patients treated with Coumadin, Plavix and Pletal. The few patients who did not tolerate the Pletal in this subgroup were trreated with Plavix and INR of 2.5-3.5 quite uneventfully.

 As I am certain you are aware, the data on the efficacy of Pletal as an anti-platelet agent is abundant. Unfortunately the studies are all small and as such not guideline altering. Also, given that the drug is generic, it is virtually certain that a guideline altering study will never be performed. This not withstanding, my personal (and hence anectodal) experience with this drug has led me to be an absolute believer it its efficacy as an antiplatelet agent and its safety in not increasing the risk of bleeding. I have used this agent as monotherapy in 5 cases where the patients had undergone DES deployment and had to be taken off ASA and Plavix withing days post PCI due to GI bleeds, or emergent non-cardiac surgery.


You must be a member (with full membership) to post a comment.
Already a member?
Enter your login information below:
 Remember me on this computer
Enjoy all the benefits of theheart.org

With full membership, you can check out our educational and editorial content, search the site, receive our newsletters, join discussions, download slides and much more.

Membership is free!

About Dr Seth Bilazarian
Seth Bilazarian MD has been a Clinical and Interventional Cardiologist at Pentucket Medical Associates in Massachusetts since 1993. He is board certified in Internal Medicine, Cardiovascular Medicine, Nuclear Cardiology, Vascular Ultrasound, Interventional Cardiology, and Vascular and Endovascular Medicine.

Dr Bilazarian performs coronary and peripheral interventions at Lahey Clinic and Massachusetts General Hospital. He has been an investigator in the interventional laboratory for new devices including drug-eluting stents, distal protection devices, imaging devices (OCT and InfraRed), and anticoagulant pharmacotherapy.

Dr Bilazarian is an active participant in clinical trials in congestive heart failure, hypertension, coronary disease prevention, prediabetes management, anemia, atrial fibrillation, and anticoagulation/antiplatelet therapies in the outpatient setting. He has authored numerous papers and book chapters in clinical cardiology. He was appointed as a physician advisor to the circulatory device panel of the FDA in 2008.
About this blog
My intent is to create a forum for dialogue on issues pertinent to private practice cardiology around topics such as:

  • Integration of new data and guidelines on inpatient and outpatient practice in clinical and interventional cardiology
  • Practice approaches to the extra clinical issues in dealing with managed care insurers
  • Strategies for navigating the restrictions of pharmacy benefits managers (PBMs) on pharmacologic therapies for our patients
  • Experiences with restrictions on testing and imaging
The video blog (VLOG) will provide an opportunity to share broadly different approaches to the common conundrums we face in caring for patients. My hope is that this forum will provide useful data points for practice outside of tertiary and academic centers and a look inside community hospitals and physician?s practice patterns in the office, starting with mine.