Detecting vascular problems in patients with diabetes treated with an intra-aortic balloon pump

Individuals with diabetes are at increased risk for both peripheral vascular disease and coronary artery disease. In patients with severe coronary artery disease, a cardiac assist device called an intra-aortic balloon pump (IABP) often is used to aid the failing heart and prevent further cardiac ischemia. Because this device is inserted via the femoral artery, patients are at risk of limb ischemia distal to the insertion site. Patients with diabetes are particularly prone to this complication. Detecting the early signs and symptoms of ischemia is crucial to preventing serious sequelae. Standard vascular examination techniques, in addition to being subjective and not easily reproducible, may be misleading in patients with diabetes. This article provides a review of the signs and symptoms of lower limb ischemia and noninvasive vascular tests that clinicians can use to evaluate lower extremity circulation. Also included are protocols for patient care during and after hospitalization, and two case studies of cardiac patients with diabetes who were treated with an IABP.