A few hours after being released from a Denver hospital this morning, the Cubs placed pitcher Carlos Silva on the disabled list for more cardiac evaluation.
Silva, who left Sunday's start at Colorado after just four batters because of an abnormally high heart rate, went straight to Wrigley Field from the airport to meet with team doctors.
It was not the first time the big right-hander has experienced an episode of rapid heartbeat in his career, he said, a fact the team did not learn until today.
``Before when that happened, I'd just take a deep breath and try to calm down, so that's what I had in my mind, that if I do that I'm going to be fine,'' said Silva, who didn't leave Sunday's game until the second visit to the mound by trainers.
``But it started getting worse and worse,'' he added. ``It was a very scary moment. I was feeling bad, but when they put me inside the ambulance, I think that was the first time I ever put my family before baseball. The only thing I was thinking about was my kids and my family.''
Silva, 31, scoffed at the idea the condition might be career-threatening.
Team officials stressed the causes and extent of the condition won't be known until further tests and evaluation by Dr. Mark Upton, the team cardiologist.
Two years ago in spring training, infielder Mark DeRosa described similar symptoms and said he had been diagnosed with a ``minor,'' chronic condition when he was younger. He had a minimally invasive surgical procedure to correct the condition and has had no apparent recurrence.
``To be honest, I don't even know if it was the altitude or, I don't know,'' Silva said. ``I feel better today. I'm normal right now. But that's why the doctors are going to do studies, to find out what this is so it doesn't happen again.''
The Cubs called up two starting pitchers from AAA Iowa to take Silva's and recently traded Ted Lilly roster spots: right-handers Thomas Diamond, who's scheduled to start today, and Casey Coleman, who joins an overtaxed bullpen tonight.
Each will be making his major-league debut when he gets in his first game for the team.
Silva is 10-5 with a 3.92 ERA in 20 starts this season.