Category: cardiology retractions

Catch Me If You Can: What happens to fake cardiologist William Hamman’s published papers?

photo of Frank Abagnale, Jr., whose story is the basis of Catch Me If You Can, by marcus_jb1973 via flickr http://www.flickr.com/photos/marcusjb/

It’s a mind-boggling story: A United Airlines pilot claims to be a cardiologist and was eagerly sought after for medical conferences at which he taught doctors teamwork. He shared millions in grants, according to the Associated Press. But as the AP reports, William Hamman wasn’t a cardiologist at all, having never even finished medical school.

Hamman’s career seems to be collapsing, now that he resigned from his post as a researcher and educator at Royal Oak, Michigan’s William Beaumont Hospital once the hospital found out he had misled them. (Just last year, Beaumont touted a $150,000 grant Hamman nabbed with a colleague, Marc Abramson at Improbable Research notes.) United has also grounded him.

The storyline is reminiscent of 2002’s Catch Me If You Can, in which Frank Abagnale Jr. (played by Leonardo DiCaprio) forges millions of dollars’ worth of checks around the world, in the process impersonating a Pan Am pilot and a doctor. In Hamman’s case, there are apparently no questions over whether his pilot credentials are legit, according to the AP.

Our interest at Retraction Watch is what happens to the papers Hamman has published over the years. There are at least six, including two published this year. The AP reported that Continue reading Catch Me If You Can: What happens to fake cardiologist William Hamman’s published papers?

Our computer ate the data: Expression of concern over blood thinner study raises concerns itself

Thrombosis and Haemostasis has issued an “expression of concern” over a 2004 paper by Tunisian researchers:

Concerns have been raised by readers about the accuracy and validity of the data reported in the September 2004 article by Abdelkefi et al., entitled “Prevention of central venous line-related thrombosis by continuous infusion of low-dose unfractionated heparin, in patients with haemato-oncological disease. A randomized controlled trial” (Abdelkefi A et al.Thromb Haemost 2004; 92: 654–661).

In the trial, 108 patients with blood cancers reportedly received infusions of either saline or heparin, a blood thinner. Those given the active drug were far less likely to develop clots related to their catheters, according to the researchers, and no more likely to experience severe bleeding. In the report, the researchers write:

This is the first prospective, randomized study, which shows that low-dose of unfractionated heparin is safeand effective to prevent catheter-related thrombosis in patients with haemato-oncological disease.

The article has had an impact, having been cited 32 times, according to Thomson Scientific’s Web of Knowledge. At some point after publication, however, the results evidently began to look fishy. Again from the journal: Continue reading Our computer ate the data: Expression of concern over blood thinner study raises concerns itself