Vice President Dick Cheney, who has a history of heart problems, will undergo a routine cardiology check-up, his spokeswoman said here last night. In March, doctors discovered that Cheney, 66, had a clot called a deep venous thrombosis in his left lower leg. After an ultrasound in late April, doctors said the clot was slowly getting smaller. He will see his doctors again at the George Washington University Medical Faculty Associates near George Washington University Hospital, according to Megan McGinn, a spokeswoman for the vice president. Cheney had six hours of surgery on his legs in 2005 to repair a kind of aneurysm, a ballooning weak spot in an artery that can burst if left untreated. He has had four heart attacks, quadruple bypass surgery, two artery-clearing angioplasties and an operation to implant a special pacemaker in his chest.
