Major or fatal complications occurred in 4% of patients younger than 59 years of age, 6% of patients 60 to 69 years old, 10% of patients 70 to 79 years old, and 13% of patients 80 years of age or older. Major complications included heart problems (such as chest pain, heart attack, and abnormal heart rhythms), lung problems (such as pneumonia, inability to breathe, and blood clots), kidney problems requiring dialysis, and strokes. Compared with patients younger than 80 years of age, patients 80 years of age or older stayed 1 day longer in the hospital. Rates of death after surgery were 1% among patients younger than 80 years of age and 3% among those 80 years of age or older.