Wildchild Lindsay Lohan is truly concerned about her father, Michael Lohan, 49, who suffered a minor heart attack on Tuesday, March 16.

Lohan has been in touch with her father over the phone. The two are known to have a volatile relationship, but it looks they have called a truce after Lohan Sr.’s health scare.

"I got a message from Lindsay which read, 'OMG. Hope you are okay' and my other kids have all been in contact with me too," he said, adding that a minor heart attack isn't going to take him down.

"I've been through a lot in my life, been to jail, various court cases, even drove a Ferrari over a cliff once, so it's going to take a lot more than this to finish me off."

Lohan underwent an angioplasty to remove any blockages near his heart on Wednesday.

"The surgeons are hoping this will work but if it does not then I may well have to get an immediate by-pass operation."