big day tomorrow

i am in ohio with my family this week. we have been in cleveland for the last 3 days with my dad getting all of the preop testing done in preparation for his open heart surgery tomorrow. He was born with a rare congenital condition called Tetralogy of Fallot, which was surgically corrected in childhood. he now needs an extensive open heart surgery to repair/replace some of the defects in his heart. The big components of the surgery will be a replacement of his pulmonary valve, and repair of an aortic aneurysm. The surgery was supposed to take place last year (Actually on 2 different occasions last year), but for various reasons the actual repair did not take place. We are very anxious for the surgery tomorrow, and hope that it will go smoothly, without complication, and signficantly improve his quality of life. Please keep my dad in your prayers tomorrow. the surgery will start around 730 a.m., and will last about 6 hours.