@article{3062834, title = "Refractory septic shock: Efficacy and safety of very high doses of norepinephrine", author = "Katsaragakis, S. and Kapralou, A. and Theodorou, D. and Markogiannakis, H. and Larentzakis, A. and Stamou, K.M. and Drimousis, P. and Bramis, I.", journal = "Methods and Findings in Experimental and Clinical Pharmacology", year = "2006", volume = "28", number = "5", pages = "307-313", issn = "0379-0355", doi = "10.1358/mf.2006.28.5.990203", keywords = "antibiotic agent; catecholamine; noradrenalin, acute pancreatitis; adult; aged; arterial pressure; central venous pressure; clinical article; controlled study; dose response; drug effect; drug efficacy; drug megadose; drug safety; female; human; intensive care unit; lung capillary pressure; male; peritonitis; review; septic shock; survival rate; systemic vascular resistance, Aged; APACHE; Blood Pressure; Dose-Response Relationship, Drug; Female; Heart Rate; Humans; Male; Middle Aged; Norepinephrine; Retrospective Studies; Shock, Septic; Vasoconstrictor Agents", abstract = "The aim of Ms study was to evaluate the safety, efficacy, and effects of administration of very high doses of norepinephrine (>4 μg kg-1 min-1) in catecholamine-resistant septic shock. We reviewed the charts of all patients with nonresponding to commonly used norepinephrine doses (≤4 μg kg-1 min-1) septic shock from January 1999 to December 2002 in our Surgical Intensive Care Unit. All patients were treated with high norepinephrine doses (>4 μg kg-1 min-1), after initial resuscitation, so as to achieve a mean arterial pressure higher than or equal to 65 mmHg. During this 4-year period, 12 consecutive patients with catecholamine-resistant septic shock were included in our study. When compared with the values obtained prior to the administration of very high norepinephrine doses, the values of mean arterial pressure (p = 0.003) and systemic vascular resistance (p = 0.002) significantly increased after the administration of such doses, and additionally, lactate concentrations (p = 0.003) decreased. In contrast, no significant changes were observed regarding mean central venous pressure, pulmonary capillary wedge pressure, and pulmonary arterial pressure. Administration of high norepinephrine doses in our patients resulted in a survival rate of 33.4%. Management of catecholamine-resistant septic shock patients poses a challenging problem. Administration of very high norepinephrine doses is safe and effective and may improve survival of these patients with otherwise extremely high mortality rates. © 2006 Prous Science. All rights reserved." }