By MERRILL GOOZNER

Today’s New England Journal of Medicine reports the results of a government-funded study of two potential approaches to giving emergency diuretics to congestive heart failure patients who show up on emergency room doorsteps gasping for breath. Should it be through a continuous drip or periodic injections? Should physicians prescribe high doses or low doses of these fluid dispersal drugs? Cost isn’t an issue since diuretics are generics. The pressing question was whether high doses caused a greater incidence of renal failure, which had been suggested by a number of smaller trials.

This comparative effectiveness study is the kind of research that never receives attention in the press. No new drugs are involved, nor does it involve a high-profile disease. But it merits closer scrutiny because of the patient population. There are more than a million patients who enter hospitals every year with acute episodes of congestive heart failure. The average age in this study was 66, i.e., Medicare was paying the tab. Three quarters had been admitted to the hospital within the past year. More than half had diabetes, and around 40 percent had implanted defibrillators. Most were on two or more drugs for high blood pressure. I searched for data on the average weight of this population, but, alas, that wasn’t included. I think you can guess.

The results were mildly interesting. It didn’t matter what approach physicians took, the outcomes were about the same. Fears of exacerbating renal failure in this vulnerable patient population from high dose diuretics appear to be overblown.

I’m afraid this is going to be the conclusion of much comparative effectiveness research, which received a major shot in the arm through the 2009 stimulus bill and will receive a continuous injection of funds from the Affordable Care Act, presuming the Republicans in Congress aren’t successful in de-funding the bill. Physician and hospital practice will have better evidence about what to do in certain situations, but radical changes in procedures that have a dramatic impact on cost will be elusive.Continue reading…