Coronary vasoregulation in patients with various risk factors in response to cold pressor testing: contrasting myocardial blood flow responses to short- and long-term vitamin C administration

Summary Objectives: We sought to determine whether abnormal myocardial blood flow (MBF) responses to the cold pressor test (CPT) in patients with various risk factors may involve different mechanisms that could lead to varying responses of short- and long-term administration of antioxidants. Background: There is a growing body of evidence that increased vascular production of…