Archive for the ‘surgery retractions’ Category
A Swedish university has concluded that two professors studying tissue engineering are guilty of misconduct in two published papers, including a 2012 study in The Lancet.
The two researchers are Suchitra Sumitran-Holgersson and Michael Olausson, both based at the University of Gothenburg. The university investigation — launched after several of Holgersson’s papers were questioned on PubPeer — has concluded that the researchers didn’t follow proper ethical procedures in the two papers.
Here’s a statement from a university spokesperson:
When two surgeons in Greece learned that a patient had developed a rare side effect following weight loss surgery, they were eager to publish the case.
After extensive testing, the patient was diagnosed with Wernicke’s encephalopathy—a neurological disorder caused by thiamine deficiency—following a sleeve gastrectomy procedure. As the authors note in the paper, they had seen only eight other cases following the procedure in the literature.
It turns out, theirs was not the ninth. After the patient unfortunately died, he was examined by a coroner, who ruled he did not, in fact, have Wernicke’s encephalopathy. So Dimitrios Manatakis and Nikolaos Georgopoulos, both based at Athens Naval and Veterans Hospital in Greece, have retracted their 2014 case study.
When the first learned of the patient, the authors wanted to alert the surgical community to the case, given the rarity of this side effect, Manatakis told us: Read the rest of this entry »
Ask and ye shall receive: A journal has retracted a 2014 paper by Paolo Macchiarini, upon request from the Karolinska Institutet (KI).
The latest news is only one step in a long-running saga about former star surgeon Macchiarini, who was dismissed from KI last year. To read more, check out our timeline.
KI announced it was asking the journal to pull the paper late last year, after concluding that four authors — including Macchiarini — were guilty of scientific misconduct. The paper had already been flagged by the journal with an expression of concern, noting the data presented in the paper may not be “fully representative” of the experiments.
Today, the journal issued a retraction notice, saying the authors wanted to retract the paper. All of the authors who could be reached have agreed to the retraction, including Macchiarini.
Here’s more from the notice:
A journal has retracted a surgery study by researchers at Brown University after noticing it included data that was not intended for research purposes. (Incidentally, the data were collected by the publisher of the journal.)
Ingrid Philbert, managing editor of the Journal of Graduate Medical Education — which published the paper — told Retraction Watch that senior staff at the publisher alerted the journal that they suspected the authors had used data from a confidential source:
This is a fairly new set of case log data, and as the collector [of] the data, the [Accreditation Council for Graduate Medical Education (ACGME)] gets to determine the use and it has decreed that this data be used solely for accreditation decisions.
Philbert said the journal asked the authors where they got the data:
After a series of documentaries prompted his former employer, Karolinska Institutet (KI), to reopen a misconduct investigation against him, KI has today released one verdict regarding a 2014 Nature Communications paper: guilty.
KI said it is contacting the journal to request a retraction of the paper, which has already been flagged with an expression of concern.
Here’s more from a release from the institution: Read the rest of this entry »
Mukund Jagannathan, the journal’s editor-in-chief and a plastic surgeon in India, told Retraction Watch:
The patient wrote to the editor, mentioning that her photo was present in the article originally published, and politely asked us to remove her photos from public display on the Internet.
Asked whether the journal considered issuing a partial retraction to only hide the patient’s identity, Jagannathan said: Read the rest of this entry »
A publisher in the Netherlands has retracted 13 published studies and withdrawn 52 that were under consideration (but not yet published) after learning that someone illegally accessed its workflows to add fake authors and manipulate text.
According to Seyyed Mohammad Miri, the founder, CEO, and managing director of Kowsar Publishing, the 13 retracted papers all included extra authors added by the same Internet Protocol (IP) address. Cyber police in Iran found the same IP address had also accessed the 52 other papers, which were in various stages of the publishing process (such as peer review) and not yet online, Miri told Retraction Watch.
Most of the authors on the 13 retracted papers are based in institutions in Iran; some were co-authors on the 58 retractions recently issued as part of a mass clean-up by publishers BioMed Central and Springer, citing fake reviews, adding inappropriate authors, and plagiarism.
Around six or seven months ago, the affected journals — in collaboration with Kowsar, their publisher — filed a court case in Tehran, Iran against this IP address, Miri said. Read the rest of this entry »
Nature Communications has issued an expression of concern for a 2014 paper by beleaguered surgeon Paolo Macchiarini, citing concerns over whether the paper accurately reports the experiments that were carried out.
According to the notice, Macchiarini, a former rising star in the field of transplant medicine, agrees with the expression of concern. Three of his 22 co-authors have objected.
“Experimental orthotopic transplantation of a tissue-engineered oesophagus in rats” describes transplanting an esophagus into rats that was seeded with their own stem cells, and notes that all animals survived the study period (14 days), and gained more weight than rats given a placebo operation. It’s a topic Macchiarini has made famous, as the first surgeon to perform a similar procedure with a human tracheal transplant. But he’s faced charges of misconduct in the last few years, resulting in his dismissal from Karolinska Institutet (KI).
Although previous research has suggested peer reviewers are not influenced by knowing the authors’ identity and affiliation, a new Research Letter published today in JAMA suggests otherwise. In “Single-blind vs Double-blind Peer Review in the Setting of Author Prestige,” Kanu Okike at Kaiser Moanalua Medical Center in Hawaii and his colleagues created a fake manuscript submitted to Clinical Orthopaedics and Related Research (CORR), which described a prospective study about communication and safety during surgery, and included five “subtle errors.” Sixty-two experts reviewed the paper under the typical “single-blind” system, where they are told the authors’ identities and affiliations, but remain anonymous to the authors. Fifty-seven reviewers vetted the same paper under the “double-blind” system, in which they did not know who co-authored the research. We spoke with Okike about some of his unexpected results.
Retraction Watch: You found that reviewers were more likely to accept papers when they could see they were written by well-known scientists at prestigious institutions. But the difference was relatively small. Did anything about this surprise you? Read the rest of this entry »
With retraction notices continuing to pour in, we like to occasionally take the opportunity to cover several at a time to keep up.
We’ve compiled a handful of retractions that were all issued to papers that were published twice by at least one of the same authors — known as duplication. (Sometimes, this can be the publisher’s fault, although that doesn’t appear to be the case in any of the following examples.)
So here are five recently retracted papers that were pulled because of duplication: Read the rest of this entry »