A vascular specialist has admitted to a medical team of researchers that he suffered a heart attack when he tried to resuscitate a patient.
Dr. James Clements said he has a history of heart issues and has been diagnosed with chronic obstructive pulmonary disease.
He said he was at his home in Virginia when the accident happened.
“I was on the phone with the emergency room and I was trying to resuscitation a patient, but it went horribly wrong,” he told The Washington Post.
“The heart was stopped.”
Dr. Clements told investigators that he used a mask to help resuscitate the man, who was taken to a hospital in Richmond.
But his attempts to resuscit him while still strapped to a monitor failed, and he eventually died.
“It was a very painful experience,” he said.
The hospital had to be evacuated, and a nearby police officer was also treated for minor injuries.
The Virginia Medical Examiner’s office said it will not be releasing the cause of death.
Dr Clements, a cardiac surgeon at the University of Virginia Medical Center, has been practicing vascular surgery since 1996 and is a founding member of the American Cardiovascular Society.
He has treated more than 50 patients with heart attacks, stroke, pulmonary embolism, or coronary artery disease, according to the Society.
Dr Andrew S. Chiu, an associate professor of surgery at the Johns Hopkins University School of Medicine in Baltimore, told ABC News that the man had an advanced heart condition and had been using a mask.
“He may have gotten caught in the heart,” Dr Chiu said.
“When he was trying, he may have not been able to get it back into place, or he may not have had the time to get to the hospital.”
Dr. Chiau said that a ventilator could have been used to get the patient out of the ambulance.
“A good case is one where the patient is in the operating room, is being evaluated, and there is no time to do that CPR,” he added.
The Associated Press contributed to this report.