Scientist using dogs in controversial study explains for the first time what was going on

The lead scientist at the centre of a controversial cardiac study performed on dogs is defending the importance of his work for the first time since his London, Ont. lab was shut down and Ontario's premier threatened to ban canines in research.

Frank Prato gave an exclusive interview to CBC London after learning two separate animal ethics committees had cleared him of all animal abuse allegations.

In August, an article by the Investigative Journalism Bureau and Postmedia, revealed that scientists from Lawson Research Institute were secretly inducing three-hour heart attacks in dogs and puppies before euthanizing them and removing their hearts for further study.

The research, conducted at St. Joseph's Hospital in London, was kept under wraps with the animals allegedly wheeled into the hospital in blanket-covered crates, as loud music played to drown out their barking, according to the article that cited whistleblowers.

St. Joseph's halted Prato's research following public outcry, including from Ontario's Premier Doug Ford, who vowed to "hunt down" scientists experimenting on animals. His government also proposed legislation to would prohibit "invasive medical research" on cats and dogs. 

Prato refutes that his work was done in secret, noting that he began using dogs to look at what happens after a heart attack in 1982 at the hospital. He suggests the whistleblowers did not understand animal behaviour, especially post surgery.

"The dogs are fully anesthetized. Unlike a human, who will suffer great pain during a heart attack, dogs don't suffer at all. The dog model showed great promise in understanding diseases like heart attack, what happens after it and how one recovers. This work is saving many, many lives."

An independent review by Western University’s Animal Care Committee (ACC) in September, and the Canadian Council on Animal Care (CCAC) in October, found the allegations of wrongdoing by Prato's lab were unsubstantiated, according to a memo obtained by CBC News.

Both investigations included site visits, records reviews and in-depth interviews with those directly involved in the program. They found that the study did not induce heart failure and the dogs were free of pain during the procedure.

"After careful assessment of the evidence, on balance we report that the research program was fully in line with its approved AUPs (Animal Use Protocol) and followed all regulatory requirements," wrote Arthur Brown, chair of Western University's ACC.

"The animal model was appropriate and the research program had made significant contributions world-wide to the clinical management of myocardial infarction patients."

Following surgery, the university review found that the dogs were actively monitored by a clinical veterinarian at least four times a day to start, and then twice a day as recovery progressed. Brown noted that the animals were with other dogs 24/7, and animal care staff interacted with them several times a day to provide them with socialization activities.

The dogs were well cared for, with appropriate bedding, toys and nutrition, the review found.

CBC News reached out to Brown for comment, who directed inquires to Western. A spokesperson confirmed the review took place but offered no further comment.