Cryptogenic stroke patients with migraine have high prevalence (79%) of patent foramen ovale (PFO) with right to left shunt. However, the timing of stroke in migraineurs is not usually associated to a migraine attack. These observations are consistent with the hypothesis that the most likely mechanism of stroke in these patients with migraine is a...
In patients at high risk of developing kidney complications undergoing angiography, we did not observe benefits when administering intravenous sodium bicarbonate vs. saline, or oral N-acetylcysteine vs. placebo, as to the prevention of death, dialysis or persistent deterioration of kidney function at 90 days, or the prevention of contrast induced kidney failure. Many small studies...
Elderly patients are at elevated risk of both ischemic and bleeding complications after an acute coronary syndrome (ACS), and display higher platelet reactivity under clopidogrel when compared to younger patients. A 5-mg dose of prasugrel would provide more predictable platelet inhibition than clopidogrel in elderly populations, without the risk of bleeding entailed by the full...
Almost 30% of all patients experience some degree of myocardial injury after elective angioplasty, a statistic associated to an increase in cardiovascular events at 30 days and 1 year, according to this study recently published in Eur Heart J. The study only included consecutive patients who underwent elective angioplasty with a negative troponin level at admission. The...
Almost 30% of all patients experience some degree of myocardial injury after elective angioplasty, a statistic associated to an increase in cardiovascular events at 30 days and 1 year, according to this study recently published in Eur Heart J. The study only included consecutive patients who underwent elective angioplasty with a negative troponin level at admission. The...
Delayed coronary obstruction (after TAVR, outside the cath lab) is a rare complication with high mortality rates, not unlike acute obstruction. Cardiologists should be expectant and, upon the slightest suspicion of this complication, patients should be brought back to the cath lab for a coronary angiography. Occlusion immediately after implant release has been well-studied and...
Heart failure patients vaccinated against influenza are at a significantly lower risk of dying, both during flu season and outside of it. Patients with heart failure vaccinated had a 48% lower risk of death during influenza season and a 21% lower risk during the rest of the year. Dr. Fukuta, lead investigator in this study,...
Patients undergoing acute coronary syndrome (ACS) loaded with a high dose of statins prior diagnostic catheterization do not seem to benefit from this strategy. However, when looking at those undergoing PCI alone (excluding all patients who had received surgery or medical treatment), the benefit appears as a reduction of combined major events. The benefit of atorvastatin loading...
Using instantaneous wave-free ratio (iFR) to guide decisions on revascularization of intermediate lesions is cheaper than using fractional flow reserve (FFR). Based on costs from the DEFINE-FLAIR trial, researchers estimate the difference to be almost USD 1000. This should not be seen as good news for any given technology (iFR, in this case), but for physiologic...
At 5 years, there were no differences in all-cause death, stroke, acute myocardial infarction, or all of these combined between low-risk, elderly patients who underwent transcatheter aortic valve replacement (TAVR) or conventional surgery. Taking into account reports from previous years, these results are not at all surprising. NOTION enrolled an all-comers population that was 70 years old...