Abstract | BACKGROUND:
Early mobilization is important for postoperative recovery but is limited by orthostatic intolerance (OI) with a prevalence of 50% 6 h after major surgery. The pathophysiology of postoperative OI is assumed to include hypovolemia besides dysregulation of vasomotor tone. Stroke volume-guided fluid therapy, so-called goal-directed therapy (GDT), corrects functional hypovolemia, and the authors hypothesized that GDT reduces the prevalence of OI after major surgery and assessed this in a prospective, double-blinded trial. METHODS: Forty-two patients scheduled for open radical prostatectomy were randomized into standard fluid therapy (control group) or GDT groups. Both groups received a fixed-volume crystalloid regimen supplemented with 1:1 replacement of blood loss with colloid, and in addition, the GDT group received colloid to obtain a maximal stroke volume (esophageal Doppler). The primary outcome was the prevalence of OI assessed with a standardized mobilization protocol before and 6 h after surgery. Hemodynamic and hormonal orthostatic responses were evaluated. RESULTS: Twelve (57%) versus 15 (71%) patients in the control and GDT groups (P = 0.33), respectively, demonstrated OI after surgery, group difference 14% (CI, -18 to 45%). Patients in the GDT group received more colloid during surgery (1,758 vs. 1,057 ml; P = 0.001) and reached a higher stroke volume (102 vs. 89 ml; P = 0.04). OI patients had an increased length of hospital stay (3 vs. 2 days; P = 0.02) and impaired hemodynamic and norepinephrine responses on mobilization. CONCLUSION: GDT did not reduce the prevalence of OI, and patients with OI demonstrated impaired cardiovascular and hormonal responses to mobilization.
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Authors | Morten Bundgaard-Nielsen, Øivind Jans, Rasmus G Müller, André Korshin, Birgitte Ruhnau, Peter Bie, Niels H Secher, Henrik Kehlet |
Journal | Anesthesiology
(Anesthesiology)
Vol. 119
Issue 4
Pg. 813-23
(Oct 2013)
ISSN: 1528-1175 [Electronic] United States |
PMID | 23756453
(Publication Type: Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)
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Chemical References |
- Colloids
- Crystalloid Solutions
- Isotonic Solutions
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Topics |
- Aged
- Colloids
(therapeutic use)
- Crystalloid Solutions
- Denmark
- Double-Blind Method
- Early Ambulation
(methods)
- Fluid Therapy
(methods)
- Goals
- Humans
- Isotonic Solutions
(therapeutic use)
- Length of Stay
(statistics & numerical data)
- Male
- Middle Aged
- Orthostatic Intolerance
(therapy)
- Perioperative Care
(methods)
- Postoperative Complications
(therapy)
- Prospective Studies
- Prostatectomy
(methods)
- Stroke Volume
- Treatment Outcome
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