Document Detail


The effects of norepinephrine infusion on the circulating lymphocyte counts of post-open heart surgery patients.
MedLine Citation:
PMID:  11232215     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In this retrospective study employing chart reviews, 75 open heart surgery patients (OHSPs) were divided into 3 groups of 25 patients. Group 1 received no intravenous (i.v.) norepinephrine (NE) after surgery. Group 2 and group 3 received a minimum of 0.028 mcg/kg/min of i.v. NE for 6-24 h and greater than 24 h, respectively. In the 3 groups, preoperative lymphocyte counts were compared to counts obtained on postoperative days 1 and 2. The results showed lower lymphocyte counts on postoperative day 2 in group 3 subjects, who received NE for 24 h or more, compared to subjects of the other groups who received no NE or 6-24 h of NE (p < 0.05). There was also evidence that preoperative use of beta-blocking agents significantly affected the change in lymphocyte counts from day 1 to day 2 in both groups receiving NE. Furthermore, postoperative infections were more prevalent in group 3 than the other 2 groups (p < 0.05). The lower lymphocyte counts and higher infection rate, however, may be linked to lower postoperative blood pressure and increased number of intensive care unit days in group 3. Further investigation is warranted to elucidate the effects of i.v. NE administration on the lymphocyte counts of OHSPs and to reduce infections in those receiving NE.
Authors:
W Zziwambazza; C J Merkle; I M Moore; J Davis
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Biological research for nursing     Volume:  1     ISSN:  1099-8004     ISO Abbreviation:  Biol Res Nurs     Publication Date:  2000 Jan 
Date Detail:
Created Date:  2001-03-05     Completed Date:  2001-03-22     Revised Date:  2006-10-13    
Medline Journal Info:
Nlm Unique ID:  9815758     Medline TA:  Biol Res Nurs     Country:  United States    
Other Details:
Languages:  eng     Pagination:  199-209     Citation Subset:  IM; N    
Affiliation:
University Physicians/University Medical Center, University of Arizona, Bone Marrow Transplant Unit, USA.
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MeSH Terms
Descriptor/Qualifier:
Adrenergic beta-Antagonists / adverse effects
Adult
Aged
Analysis of Variance
Anti-Inflammatory Agents / adverse effects
Anti-Inflammatory Agents, Non-Steroidal / adverse effects
Cardiac Surgical Procedures* / adverse effects
Drug Therapy, Combination
Female
Humans
Infection / etiology
Infusions, Intravenous
Length of Stay / statistics & numerical data
Lymphocyte Count*
Male
Middle Aged
Neuroimmunomodulation
Norepinephrine / adverse effects*
Prevalence
Retrospective Studies
Steroids
Time Factors
Vasoconstrictor Agents / adverse effects*
Chemical
Reg. No./Substance:
0/Adrenergic beta-Antagonists; 0/Anti-Inflammatory Agents; 0/Anti-Inflammatory Agents, Non-Steroidal; 0/Steroids; 0/Vasoconstrictor Agents; 51-41-2/Norepinephrine

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