How the Karolinska protected Paolo Macchiarini — and whistleblowers paid the price

Carl Elliott

Retraction Watch readers may recall the story of Paolo Macchiarini, about whom we first wrote in 2012 before he became the subject of international scrutiny — and who has now been sentenced to prison. We are pleased to present an excerpt about the Macchiarini case from The Occasional Human Sacrifice: Medical Experimentation and the Price of Saying No by Carl Elliott published by W. W. Norton, May 2024.

One incident illustrates just how determined the leaders of the Karolinska Institute were to protect Paolo Macchiarini. In November of 2014, a leaked copy of the whistleblowers’ report came into the hands of the New York Times, which published an article titled “Leading Surgeon Is Accused of Misconduct in Experimental Transplant Operations.” The article detailed several of the most serious allegations against Macchiarini: that he had never obtained ethical permission to conduct his experiments, that his 2011 study in The Lancet had misrepresented the outcome of Beyene’s implant, and that of the three patients at the Karolinska Institute that Macchiarini had given synthetic implants, only Beyene had signed a consent form— and the form was dated two weeks after his surgery. The publicity generated by the article all but forced the Karolinska Institute to act. Anders Hamsten, the vice-chancellor, said he would ask for an external inquiry. 

Retaliation against the whistleblowers came quickly. According to Simonson, the whistleblowers were told that they had violated patient privacy and would be fired immediately. That didn’t happen, but in December the Karolinska Institute informed the whistleblowers that the head of the cardiothoracic clinic would deliver a formal warning, the last step before an employee is terminated.

The Karolinska Institute also reported the whistleblowers to the police. “I was called down to the police and put in a room with no windows, with a tape recorder and a lawyer and a policeman in front of me, and interrogated. That was pretty scary,” Matthias Corbascio, a cardiothoracic surgeons says. “It was exactly what it’s like on television. And you know, it’s hard to be a tough guy in that room.” 

Continue reading How the Karolinska protected Paolo Macchiarini — and whistleblowers paid the price

Lancet retracts two more papers by convicted surgeon Paolo Macchiarini

Paolo Macchiarini

The Lancet today retracted two papers by former Karolinska Institutet surgeon Paolo Macchiarini, whose professional and personal escapades have made headlines for more than a decade and who has been sentenced to 30 months in prison for causing bodily harm to his patients.

The move comes a month after Sweden’s National Board for Assessment of Misconduct (NPOF in Swedish) said it had found Macchiarini guilty of misconduct involving the two articles, eight months after the journal issued expressions of concern for the two papers, and five years after Macchiarini had already been found to have committed misconduct in related work.

As we reported in February:

Continue reading Lancet retracts two more papers by convicted surgeon Paolo Macchiarini

Five years after saying it won’t retract Macchiarini paper, journal does so

Paolo Macchiarini

In 2018, the journal Respiration was adamant that it wouldn’t retract a 2015 paper co-authored by once-respected transplant surgeon Paolo Macchiarini. Now, the editors at Respiration seem to have changed their mind.

Macchiarini is most well known for his controversial artificial windpipe implants. Seven out of the eight patients who had artificial windpipes implanted from Macchiarini suffered complications after the surgery

Five years ago, the Karolinska Institute (KI) in Sweden found that Macchiarini and three co-authors of his were guilty of misconduct in the 2015 study, and recommended that it should be pulled. 

Thomas Nold, then the editor-in-chief of Respiration, previously told Retraction Watch, however, that the journal decided against retraction: 

Continue reading Five years after saying it won’t retract Macchiarini paper, journal does so

Five years on, convicted transplant surgeon earns expressions of concern from Lancet

Paolo Macchiarini

In 2018, when The Lancet pulled two studies by once-celebrated transplant surgeon Paolo Macchiarini after he was found guilty of misconduct, we suggested in a post that the journal’s chapter of the long-running Macchiarini saga was finally over. 

We were wrong.

Last week, the journal issued expressions of concern about a pair of papers by the Italian doctor, who is currently on probation after a court in Sweden  convicted him of causing bodily harm to a patient.

Continue reading Five years on, convicted transplant surgeon earns expressions of concern from Lancet

“The final verdict:” Lancet retracts two papers by Macchiarini

Paolo Macchiarini

The Lancet chapter of the Paolo Macchiarini saga appears to finally be over.

In an editorial titled “The final verdict on Paolo Macchiarini: guilty of misconduct,” the editors of the journal announce that they are retracting two papers by the now-disgraced surgeon and colleagues “after receiving requests to do so from the new President of the Karolinska Institute (KI), Ole Petter Ottersen.” Late last month, Ottersen declared Macchiarini and six other researchers — including one of the whistleblowers in the case — guilty of misconduct.

The long story took many twists and turns — for instance, in September 2015, Lancet editors wrote an editorial with close to the opposite title: “Paolo Macchiarini is not guilty of scientific misconduct,” published after KI released the results of a previous investigation:   Continue reading “The final verdict:” Lancet retracts two papers by Macchiarini

Karolinska finds Macchiarini, six other researchers guilty of misconduct

Paolo Macchiarini

Former super-star surgeon Paolo Macchiarini is guilty of misconduct, along with six of his co-authors — including one who initially help alert authorities to problems with Macchiarini’s work, according to an announcement today by his former institution, the Karolinska Institute.

KI is also calling to retract six articles co-authored by Macchiarini and his colleagues, including two highly cited papers in The Lancet. The papers described the procedure and outcomes of transplanting synthetic tracheas into three patients between 2011 and 2013.

KI’s investigation uncovered “serious inaccuracies and misleading information in the reviewed articles:”

Continue reading Karolinska finds Macchiarini, six other researchers guilty of misconduct

Macchiarini, 3 co-authors found guilty of misconduct in 2015 paper

The Karolinska Institutet in Sweden has declared that once-lauded surgeon Paolo Macchiarini and three co-authors committed misconduct in a 2015 paper.

The decision by KI’s vice chancellor will be followed by a request to retract the paper, published by the journal Respiration.

In the paper, the researchers described the case of a man with an acute lung disorder, in which he received an experimental treatment involving the use of his own blood-derived cells and the drug erythropoietin, which stimulates the production of red blood cells. The patient “demonstrated an immediate, albeit temporary, clinical improvement,” according to the authors. However, he ultimately died of multisystem organ failure.

Continue reading Macchiarini, 3 co-authors found guilty of misconduct in 2015 paper

Swedish review board finds misconduct by Macchiarini, calls for six retractions

Paolo Macchiarini

An ethical review board in Sweden is asking journals to retract six papers co-authored by former star surgeon Paolo Macchiarini, after concluding that he and his co-authors committed misconduct.

One of the papers is the seminal 2011 article in The Lancet, which described the first case of a transplant using an artificial trachea seeded with the patient’s own stem cells, and now bears an expression of concern from The Lancet editors. Over time, multiple authors have asked to be removed from the paper.

The Expert Group on Scientific Misconduct at the Central Ethical Review Board has determined that concerns over that paper — and five others co-authored by Macchiarini, once based at the Karolinska Institutet (KI) — were justified. In a press release, it says:

Continue reading Swedish review board finds misconduct by Macchiarini, calls for six retractions

“It’s been three tough years:” Macchiarini whistleblower cleared of previous charges

Karl-Henrik Grinnemo

Karl-Henrik Grinnemo was worried. The doctor and clinical researcher at the Karolinska Institute was working with a high-profile surgeon who was performing a potentially life-saving procedure on patients, but Grinnemo saw that the patients weren’t doing very well. So in 2013, Grinnemo and three other doctors raised concerns about the work of Paolo Macchiarini. The surgeon initially fought back, and accused Grinnemo of misconduct. KI sided with the star surgeon, and found Grinnemo guilty of “carelessness” in a grant application to the Swedish Research Council, including plagiarism. Readers should by now know how the story ends – Macchiarini’s work has since been largely discredited. Recently, to clear his name, Grinnemo asked authorities to take a second look at his case – and he has been exonerated. We talked to him about the last few tumultuous years. 

Retraction Watch: How does the story begin?

Continue reading “It’s been three tough years:” Macchiarini whistleblower cleared of previous charges

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