My dad's heart surgery.

He went in at 2 and I'm not sure how long it will be but prayers would be very appreciated. This is his 2nd surgery for his heart now, the first one was a triple bypass back in March. He has Supraventricular tachycardia now and there gonna try shocking his heart I believe to get it to beat properly. If it doesn't work they'll put in a pace maker and he's very afraid of that cause he won't be able to drive truck anymore and he loves his job so much.