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Dobutamine administration in septic shock: addition to a standard protocol
J L Vincent1, A Roman, R J Kahn
1Department of Intensive Care, Erasme University Hospital, Brussels, Belgium.
Critical Care Medicine
|July 1, 1990
Summary
Dobutamine infusion in septic shock patients increased cardiac index, stroke index, and oxygen transport without significantly affecting mean arterial pressure. Oxygen consumption also rose concurrently with dobutamine administration.
Area of Science:
- Critical Care Medicine
- Cardiology
- Pharmacology
Background:
- Dobutamine is known to increase oxygen delivery, but its effects in septic shock are not well-documented.
- Septic shock is characterized by hypotension, oliguria, and hyperlactatemia.
- Early resuscitation involves fluids and vasopressors.
Purpose of the Study:
- To investigate the effects of dobutamine infusion on hemodynamic parameters in patients with septic shock.
- To assess changes in oxygen delivery and consumption with dobutamine administration.
Main Methods:
- 18 patients with septic shock received dobutamine infusion at 5 micrograms/kg/min.
- Hemodynamic parameters including mean arterial pressure, cardiac index, and stroke index were monitored.
- Oxygen transport and consumption were measured.
Main Results:
- Dobutamine significantly increased cardiac index (3.0 to 3.9 L/min.m2), stroke index (32 to 37 ml/m2), and oxygen transport (410 to 530 ml/min.m2).
- Oxygen consumption (VO2) increased concurrently (137 to 162 ml/min.m2).
- Mean arterial pressure showed no significant change overall, but increased in 12 patients and decreased in six.
Conclusions:
- Dobutamine improves cardiac function and oxygen delivery in septic shock patients.
- While not significantly impacting overall mean arterial pressure, dobutamine can be a useful adjunct to standard resuscitation.
- Further research may explore patient subgroups benefiting most from dobutamine.