Hyperglycemia in a Coronary Intensive Care Unit

Patients with acute coronary heart disease admitted to the emergency room will be recruited consecutively. Admission plasma glucose (APG) and fasting plasma glucose (FPG); the first morning after admission, measurements will be obtained and each participant will be subjected to capillary glucose measurement (CGM) every six hours within the first day. Patients will be separated into 4 groups: GROUP 1: Normoglycemic cases GROUP 2: Newly diagnosed hyperglycemic cases Group 2a: Unrecognized diabetes, hbA1c: \>6.0% Group 2b: Stress hyperglycemia \<6.0%. GROUP 3: Known diabetes Age, gender, co-morbidities on admission, adverse outcomes in hospital, duration of stay in coronary ICU, deaths, drugs, and glucose levels will be all recorded. Throughout the hospital stay of Group 2 and Group 3, CGMs were performed and treated when necessary (target glucose\<180mg/dl). Acute Physiology and Chronic Health Evaluation II (APACHE-II); a severity of disease classification system was used for each case.