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NFL Combine: Doctors say multiple factors could explain Star Lotulelei's heart test results
This is an archived article that was published on sltrib.com in 2013, and information in the article may be outdated. It is provided only for personal research purposes and may not be reprinted.

While Star Lotulelei's path to the NFL has certainly hit a road block after tests on Sunday revealed a heart condition, it is too early to know just how serious a situation it is and whether his pro career is in jeopardy, according to David Petron, the team physician for University of Utah athletic teams.

Petron, who could not speak specifically about Lotulelei's case due to privacy concerns, said a number of factors could explain the results of an echocardiogram such as that performed Sunday on Lotulelei at the NFL scouting combine. The test revealed Lotulelei's left ventricle is pumping at 44 percent efficiency compared with the normal range of 55 to 70 percent.

Everything from a false test result to a previous heart attack to an abnormally sized heart could result in lower outputs.

"A lot more tests need to be done," Petron said. "Typically in that situation, someone will undergo an MRI or stress echo test to see how the heart reacts to exercise. Sometimes they start pumping normally."

Lotulelei, projected to be one of the first players taken in the 2013 NFL Draft, sat out other physical tests at the combine but is expected to participate in all tests at Utah's pro day on March 20.

Petron said most schools don't include echocardiograms in their general physical assessments because the tests are expensive. Often, other indicators signal possible problems, leading to further testing.

Lotulelei had no such indicators during his standout career at Utah. He made six All-America teams as a senior and was a first-team all-Pac-12 Conference player. The nose tackle finished with 42 tackles, including a team-high 11 tackles for loss and five sacks in 2012.

He also had four pass breakups, four fumble recoveries and three forced fumbles.

"Normally if someone has a condition like that, there will be shortness of breath, chest pains or something like that," Petron said. "Even if there is a positive in a test, it doesn't mean a pathology is there."

Edward Ganellen, a cardiologist at St. Mark's Hospital, also cautioned against jumping to conclusions, pointing out that the low output could be caused by a virus, among other things.

"A 44 percent output isn't terrible," he said. "For everyday things it wouldn't make much of a difference, but for a pro athlete it could make a big difference."

Ganellen said patients with the condition in Lotulelei's range typically are treated with medication.

According to Petron, using echocardiograms in screenings for athletes is a relatively new process, even at the pro level.

"Three years ago, this may never have been found and it might have been a nonissue," he said.

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