More than migraines caused Harvin's collapse

Vikings trainer Eric Sugarman believes the team has a better handle on Percy Harvin's migraines after his latest episode, a collapse on the practice field Thursday, followed by a trip to the hospital.

Vikings head athletic trainer Eric Sugarman didn't divulge full details of Percy Harvin's ongoing health issue, but he told NBC Sports that Harvin's collapse on the practice field and subsequent visit to the hospital was caused by more than just migraines.

Sugarman told NBC that tests at the hospital revealed that oxygen to Harvin's brain was not cut off, he didn't have a heart problem and he didn't have a seizure. However, Harvin was unresponsive on the practice field for seven to 10 minutes after vomiting and collapsing before he was taken to the hospital by ambulance Thursday.

The cause of the collapse could have been the result of an "adverse reaction to medication, dehydration and low blood pressure," according to the report.

The attacks seem to be following stressful events in Harvin's life. He left training camp on July 31 after the death of his grandmother, and that was followed by a bout of migraines that caused him to miss more time. He didn't return to the team until Monday last week and was scheduled to address the media on Thursday, but his collapse changed those plans and he still hasn't spoken with reporters. He returned to watch the start of practice on Friday, but he wasn't available to talk after practice.

The outpouring of concern for Harvin continues, and the team reportedly receives up to 60 calls per day from those making suggestions on what might help Harvin. According to what Sugarman told NBC, Harvin has seen approximately 20 doctors — neurologists, cardiologists and internists in addition to nutritionists, physical therapists, acupuncturists and chiropractors.

"This is a very trying illness for everyone," Sugarman told NBC.

When we asked Vikings coach Brad Childress Friday if Harvin's collapse had been determined to be caused by the migraines, he said the medical experts were just trying to take out all of the known issue in diagnosing the collapse.

"I don't think there are going to be any quick fixes. It's going to be a work in progress," Childress said. "Even though you'd like to stick it in a box and have it be fixed this way, history has told us that migraines aren't that way."

Harvin was allowed to lift weights, do some cardio and broke a sweat on Saturday before the team left for San Francisco. He didn't make the trip, but Sugarman said Harvin could have played.

The key, according to NBC's report, is to attack the migraine as soon as Harvin gets his first symptom. The team has given him a written set of instructions to follow at the first sign of trouble, according to the report.

"This is going to be a lifelong fight," Sugarman said.

Tim Yotter is the publisher of Viking Update. Follow Viking Update on Twitter and discuss this topic on our message boards. To become a subscriber to the Viking Update web site or magazine, click here.

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