Crucial questions remain
A pragmatic interpretation
Although an observational study can’t show causality between bleeding and mortality, Dr. Marquis-Gravel cautioned, “the fact that the majority of deaths occurred early after the bleeding event, within 30 days, is strongly suggestive of a causal relationship.”
He recommended a “pragmatic interpretation” of the study: “Bleeding avoidance strategies tested in PCI populations, including short-term DAPT or aspirin-free strategies, should also be considered in medically treated patients with ACS deemed at higher risk of bleeding.”
“It is clear that bleeding events after successful PCI for an ACS are independently associated with increased mortality and morbidity,” Debabrata Mukherjee, MD, of Texas Tech University, El Paso, said in an interview.
“Every effort should be made to minimize bleeding events with the use of appropriate access site for PCI, dosing, selection, and duration of antiplatelet and antithrombotic agents, and use of proton pump inhibitors when appropriate,” he said.
The clinical decision-making involved in this individualized approach “is often not easy,” said Dr. Mukherjee, who was not involved in the current study. “Integrating patients and clinical pharmacists in choosing optimal antithrombotic therapies post-MI is likely to be helpful” in the process.
Although “major bleeding following ACS increases the risk of mortality for both medically managed and PCI-managed patients with ACS, the vast majority of deaths, 90%, occur in those that have not had a bleed,” Mamas A. Mamas, DPhil, Keele University, Staffordshire, England, said in an interview.
“It is important to understand the causes of death in this population and think about how interventions may impact on this,” agreed Dr. Mamas, who was not involved in the study.
Dr. Marquis-Gravel reported receiving speaking fees and honoraria from Servier and Novartis; disclosures for the other authors are in the report. Dr. Chew reported receiving speaking fees and institutional grants in aid from Roche Diagnostics, AstraZeneca, and Edwards Lifesciences. Dr. Tan discloses receiving speaking fees and educational grants from Amgen, Roche Diagnostics, AstraZeneca, Bayer, and Abbott Vascular. Dr. Mukherjee and Dr. Mamas report no relevant financial relationships.
A version of this article originally appeared on Medscape.com.