Between hemoglobin concentrations on admission and 2-PMPA inhospital 30-day cardiac mortality and complications among patients with acute myocardial infarction during their hospital course. Methods We conducted a retrospective study of data on 660 Chinese patients who were hospitalized with acute myocardial infarction. Patients were categorized according to the hemoglobin concentration on admission, and data were evaluated to determine whether there was an association between the hemoglobin concentrations on admission and inhospital 30-day mortality and complications. Complications were defined as cardiogenic shock, congestive heart failure, arrhythmia, ventricular tachycardia or fibrillation and pneumonia.P233 Coronary collateral circulation status is correlated with the initial electrocardiographic pattern in ST-elevation myocardial infarctionI Nu z Gil1, R Garcia de la Borbolla2, J Garcia Rubira1, A Fernandez Ortiz1, M Manzano Nieto1, R Hernandez Antolin1, C Macaya1 1Hospital Cl ico San Carlos, Madrid, Spain; 2Hospital Universitario Puerta del Mar, Cadiz, Spain Critical Care 2007, 11(Suppl 2):P233 (doi: 10.1186/cc5393) Introduction The status of coronary collateral circulation (CC) in the first hours of ST-elevation myocardial infarction (STEMI) may influence outcome. Early recognition of the CC status may haveSCritical CareMarch 2007 Vol 11 Suppl27th International Symposium on Intensive Care and Emergency MedicineResults Patients with hemoglobin values between 140 and 159 g/l were used as the reference; cardiovascular mortality increased as hemoglobin levels fell below 140 g/l or rose 160 g/l. The inhospital 30-day mortality was 25.0 in patients with hemoglobin concentrations <100 g/l, 20.4 in patients with hemoglobin concentrations of 100?19 g/l, 10.6 in patients with hemoglobin concentrations of 120?39 g/l, 4.3 in patients with hemoglobin concentrations of 140?59 g/l, and 8.5 in patients with hemoglobin concentrations of 160 g/l or greater. The increase in risk of complications associated with a low hemoglobin concentration was more pronounced in patients with anemia than in patients without. Compared with patients with hemoglobin PubMed ID:http://www.ncbi.nlm.nih.gov/pubmed/20738431 concentrations of 140?59 g/l, those with hemoglobin concentrations <140 g/l had more inhospital complications and those with hemoglobin concentrations 160 g/l also had more arrhythmia and pneumonia (P < 0.001, respectively). As expected, a significant inverse correlation between hemoglobin concentrations and ages (r = ?.51; P < 0.001) was observed, and a significant positive correlation between hemoglobin concentrations and albumin concentrations and in the patients with acute myocardial infarction. Conclusion It is demonstrated in this study that a reverse J-shaped relationship between baseline hemoglobin values and major adverse cardiovascular events is observed in patients with acute myocardial infarction. There is a greater incidence of patients with a hemoglobin concentration on admission in the elderly population than that in the younger one.worse intrahospital prognosis: major incidence of cardiac insufficiency (42 to 20 , P = 0.0001), refractory angina pectoris (14 to 6 , P = 0.01), more electric complications (12 to 9 , P = 0.01) and a higher mortality (14 to 7 , P = 0.009). The presence of anaemia was an independent predictor of cardiac insufficiency and death at the moment of admittance to the CCU (OR = 2.20, 95 CI = 1.10?.35; P = 0.002) Conclusion The presence of anaemia is a powerful pred.