There are different ways to define success. For a child success might mean finally advancing out of diapers. For an aspiring driver success might mean finally passing the necessary tests -- even if it takes two or three times to do it.
When someone in Texas goes into a hospital or a clinic for a medical procedure, chances are good that success in the patient's mind means coming out of it better than he or she was before and anything less might prompt suspicions of medical malpractice. Seeking compensation then is a patient's right. And it might be due if clear negligence can be shown. In some cases it might depend on how success is defined.