Archive for the ‘surgery retractions’ Category
Following an investigation, Karolinska Institutet has found that surgeon and visiting professor Paolo Macchiarini acted in some cases “without due care,” but that his behavior “does not qualify as scientific misconduct.”
Karolinska’s Vice Chancellor has also recommended that Macchiarini submit an unspecified number of corrections “to clarify and rectify the failings that the inquiry has brought to light.”
Macchiarini is most well-known for pioneering the creation of tracheas from cadavers and patients’ own stem cells. However, the glow of his success was diminished somewhat after four Karolinska surgeons filed a complaint, alleging Macchiarini had downplayed the risks of the procedure and not obtained proper consent, among other accusations.
An external review by Bengt Gerdin of Uppsala University concluded in May that Read the rest of this entry »
One of Paolo Macchiarini’s co-authors on a 2011 Lancet paper describing an allegedly groundbreaking procedure to transplant an artificial trachea seeded with stem cells is objecting to a recent investigation that concluded Macchiarini had committed misconduct.
Ola Hermanson, who studies neural stem cells at Karolinska Institutet, argued in a report dated June 29 that the investigation contained “serious flaws and formal errors.”
Hermanson’s lengthy response (uploaded here except for supporting emails) is to the findings of an external review of allegations about Macchiarini’s work, conducted by Bengt Gerdin, of Uppsala University. In regards to the 2011 Lancet paper, Gerdin’s investigation found:
A paper whose expression of concern we covered in November 2014 has been retracted and republished “because of the extent of the changes necessary,” according to the Lancet Respiratory Medicine.
This study was a meta-analysis of research on how the timing of tracheostomies — placing a breathing tube directly into the windpipe — affects patients’ mortality rate. The original paper found that critically ill patients who received a tracheostomy earlier fared better than those for whom the procedure was delayed for weeks after intubation, the recommended practice.
However, when the authors calculated how many patients died, they assumed that any patient who wasn’t discharged from the intensive care unit (ICU) had died there, instead of looking for other explanations. This made their estimates unreliable.
The publisher convened a panel, which ultimately decided retraction and republication was the most appropriate course of action.
BioMed Central is retracting 43 papers, following their investigation into 50 papers that raised suspicions of fake peer review, possibly involving third-party companies selling the service.
In November 2014 we wrote about fake peer reviews for Nature; at that point there had been about 110 retractions across several journals. The addition of 16 retractions by Elsevier for the same reason, and today’s 43 from BMC, brings retractions resulting from the phenomenon up to about 170.
BMC has also contacted institutions regarding 60 additional papers that were rejected for publication, but seem to be part of the same kind of scam. Regarding the third-party agents, BMC senior editor of scientific integrity Elizabeth Moylan writes: Read the rest of this entry »
The paper, “Impact on Quality of Life of Using an Onlay Mesh to Prevent Incisional Hernia in Midline Laparotomy: A Randomized Clinical Trial,” came from a group at the Parc Tauli University Hospital, part of the Universitat Autònoma de Barcelona, in Spain.
By duplicating another paper, the authors (three of which appear to be listed on both papers) committed “a severe abuse of the scientific publishing system,” according to the retraction notice: Read the rest of this entry »
The paper, “Effect of early versus late or no tracheostomy on mortality of critically ill patients receiving mechanical ventilation: a systematic review and meta-analysis“, came from a group at Harvard, Weill Cornell and the University of Athens. The authors purported to find that: Read the rest of this entry »
The article, “The complications of repeat median sternotomy in paediatrics: six-months follow-up of consecutive cases,” came from a team at Glenfield Hospital in Leicester, England, and has been cited eight times, according to Scopus.
Here’s the notice:
Dentists Bryan and Paul Jacobs, a father and son team, wrote a paper describing a novel surgical technique in March 2013. In October 2013, several Croatian dentists published their own paper using the technique.
A year later, the story has gotten a little more interesting. The November issue of the Journal of Oral and Mixillofacial Surgery, which published the second article, has two letters. One, from the Jacobses, accuses the Croatian authors of plagiarism. The second is a response from author Dragana Gabrić Pandurić, claiming “our real intention was to emphasize, not plagiarize, their work.”
The article, “Is the impact of the extent of lymphadenectomy in radical prostatectomy related to the disease risk? A single center prospective study,” purported to show that: Read the rest of this entry »
The Annals of the Royal College of Surgeons of England has retracted a 2013 article by a group from Dubai and Italy after learning of serious issues with the data in the report.
The article, “Transanal haemorrhoidal dearterialisation with mucopexy versus stapler haemorrhoidopexy: a randomised trial with long term follow-up,” purportedly described a long-term telephone follow-up study of patients who had undergone the procedure. Here’s the abstract: Read the rest of this entry »