Category: lancet

Buzzy Lancet long COVID paper under investigation for ‘data errors’

An early and influential paper on long COVID that appeared in The Lancet has been flagged with an expression of concern while the journal investigates “data errors” brought to light by a reader. 

An editorial that accompanied the paper when it was published in January of last year described it as “the first large cohort study with 6-months’ follow-up” of people hospitalized with COVID-19. The article has received plenty of attention since then. 

Titled “6-month consequences of COVID-19 in patients discharged from hospital: a cohort study,” the paper has been cited nearly 1,600 times, according to Clarivate’s Web of Science. Altmetric finds references to it in multiple documents from the World Health Organization.  

Continue reading Buzzy Lancet long COVID paper under investigation for ‘data errors’

The Lancet more than doubles its impact factor, eclipsing NEJM for the first time ever

The Lancet has overtaken the New England Journal of Medicine as the medical journal with the highest impact factor, according to Clarivate’s 2022 update to its Journal Citation Reports. And the jump wasn’t subtle: The Lancet’s impact factor – a controversial measure of how often a journal’s papers are cited on average – more than doubled from last year.

Lancet can thank the COVID-19 pandemic for its surge. 

In separate news, Clarivate suppressed three journals for self-citation, and warned a half dozen others.

As we’ve written in posts on previous years’ reports: 

Continue reading The Lancet more than doubles its impact factor, eclipsing NEJM for the first time ever

Lancet retracts 10-year-old case report

Nihon University School of Medicine

The Lancet has retracted a decade-old case report by a group from Japan after concluding that the authors misrepresented the originality of the work. 

The paper was a case report, titled “Hidden Harm,” by a team at Nihon University School of Medicine in Tokyo. The authors described a 46-year-old woman with a history of self-harming behaviors they ultimately attributed to a previously undetected neuroendocrine tumor called a pheochromocytoma.

According to the retraction notice, however, the tumor wasn’t the only thing about the paper that was hidden. The authors also misled the Lancet when they said they hadn’t published about the case when they submitted their writeup about the case — a fact unknown to the journal until this summer:

Continue reading Lancet retracts 10-year-old case report

Andrew Wakefield’s fraudulent paper on vaccines and autism has been cited more than a thousand times. These researchers tried to figure out why.

Elizabeth Suelzer

Retraction Watch readers are no doubt familiar with one of the most consequential retractions of this century, namely that of the 1998 paper in The Lancet by Andrew Wakefield and others claiming a link between vaccines and autism. What they may also know is that the paper remains one of the most highly cited retracted articles of all time, as demonstrated by our leaderboard of such papers.

With that in mind, six librarians from institutions in Wisconsin had a question: ” What are the characteristics of citations of the retracted 1998 article by Wakefield et al that purported to show an association between the measles-mumps-rubella vaccine and autism?” A paper describing their findings was published on Friday in JAMA Network Open.

We asked corresponding author Elizabeth Suelzer, of the Medical College of Wisconsin, to answer several questions about the paper.

Retraction Watch (RW): Why did you decide to focus on the Wakefield paper, and what were your findings?

Continue reading Andrew Wakefield’s fraudulent paper on vaccines and autism has been cited more than a thousand times. These researchers tried to figure out why.

Lancet retracts and replaces news story about controversial abortion drug

The Lancet has retracted a journalist-written piece about a controversial drug used off-label to induce abortions, and replaced it with a corrected version.

In the retraction notice, the journal said it “removed the information that we believe to be inaccurate.”

The article, first published Oct. 28, 2017, highlights Pfizer’s decision to withdraw the drug, misoprostol, from the French market in 2018, and explores the ongoing debate surrounding its uses and safety. Approved to treat ulcers, misoprostol is more often used off-label to induce labor or medical abortions, despite reports of serious side effects, including hemorrhaging and birth defects “sometimes associated with fetal death.” Continue reading Lancet retracts and replaces news story about controversial abortion drug

Lancet retracts (and replaces) paper a year after authors report error that changes “all numbers”

In March 2016, researchers in Switzerland and Canada published a meta-analysis in The Lancet, exploring the optimal painkiller and dose for treating pain in knee and hip osteoarthritis. Soon after, the authors were informed of an error that would change “all numbers” in a paper that may influence clinical practice.

The authors contacted The Lancet immediately, in July 2016, to inform them of the issue. Sven Trelle, the paper’s corresponding author, also told us: Continue reading Lancet retracts (and replaces) paper a year after authors report error that changes “all numbers”

Macchiarini blames Karolinska for losing data as he retracts 2014 paper

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:

Continue reading Macchiarini blames Karolinska for losing data as he retracts 2014 paper

UK tribunal orders release of data from controversial chronic fatigue syndrome study

court caseA tribunal in the UK has rejected an appeal by Queen Mary University of London, who sought to reverse a previous order that they release data from a controversial 2011 paper in The Lancet about chronic fatigue syndrome (CFS).

The decision is one in a long series of judgments about the so-called PACE trial, which reported that two treatments — known as cognitive behavioral therapy and graded exercise therapy — helped alleviate the symptoms of the condition. But ever since The Lancet article and follow-up papers have been published, patients and critics have questioned the conclusions and clamored to see the raw data.

The main criticisms: The findings may prompt some to believe chronic fatigue is a mental, not a physical, disorder, and the PACE program could actually be harmful to patients by encouraging too much exercise. These criticisms were recently bolstered by a re-analysis of the evidence by the Agency for Healthcare Research and Quality, which downgraded its original conclusions about the effectiveness of cognitive behavioral therapy and graded exercise therapy.

In March 2014,  Continue reading UK tribunal orders release of data from controversial chronic fatigue syndrome study

Macchiarini did not obtain necessary ethics approvals, says Swedish Research Council

lancetSurgeon Paolo Macchiarini did not apply for the necessary ethics approval to perform the pioneering transplants he’s known for, according to the Swedish Research Council.

Chief Legal Counsel Anna Hörnlund, who wrote a letter in this week’s The Lancet, says Macchiarini’s work needed to obtain ethical approval from one of six regional ethical review boards, as required by Swedish law — and neither Macchiarini nor his former employer, Karolinska Institutet, did so:

Continue reading Macchiarini did not obtain necessary ethics approvals, says Swedish Research Council

Poll: Should co-authors of a scientific paper be allowed to change their minds?

lancetSince we reported Friday that multiple authors had asked to remove their names from a high-profile 2011 Lancet paper about a risky transplant surgery, a few readers have wondered: Should this be allowed?

To recap: The same day the journal announced it was tagging the controversial paper with an expression of concern, it issued a new erratum about the paper, removing three author names (one had already asked to be removed earlier). The highly cited paper has been under scrutiny ever since the last author, Paolo Macchiarini, has been facing allegations of misconduct, which most recently led to Macchiarini’s dismissal from the Karolinska Institutet. (Here’s our timeline of events to keep you abreast.)

It’s not surprising that a few of Macchiarini’s co-authors would want to distance themselves from this ever-expanding scandal, but should authors who originally signed onto a paper be able to change their minds? Let us know in our poll, below. Continue reading Poll: Should co-authors of a scientific paper be allowed to change their minds?