| Relation of inflammatory cytokines to atrial fibrillation after off-pump coronary artery bypass grafting. | |
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MedLine Citation:
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PMID: 16439145 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: It has been observed that a systemic inflammatory response after on-pump coronary artery bypass grafting (CABG) participates in the pathogenesis of postoperative atrial fibrillation (AF). In patients undergoing off-pump CABG, it is plausible that inflammation is associated with the development of postoperative AF. The present study examined relation of proinflammatory cytokines, which play an important role in the upstream of inflammatory cascade, to the development of AF after off-pump CABG. METHODS: The present study included 39 patients undergoing off-pump CABG. Tumor necrosis factor-alpha (TNF-alpha), interleukin (IL)-6, and IL-8, were measured by enzyme-linked immunosorbent assay, on anesthetic induction, after sternotomy before anastomoses, at the completion of anastomoses, 3 and 6h thereafter, and on postoperative days (POD) 1-4. C-reactive protein (CRP) was also measured by turbidimetric immunoassay, preoperatively, and on POD 1, 2, 3, 6, 9, and 13. RESULTS: Eleven patients (28%) developed postoperative AF. Patients with postoperative AF were older (70+/-6.4 years vs 60+/-8.8 years, P=0.001); however, there was no difference in other pre- and perioperative variables. TNF-alpha level did not change during the study period. However, IL-8 and CRP levels significantly increased after the surgery, although there was no significant difference between the two groups. IL-6 level also increased after the surgery with its peak at 6h after the completion of anastomoses. IL-6 levels of 3 and 6h after anastomoses were significantly higher in patients with postoperative AF (360+/-143 pg/ml vs 230+/-94 pg/ml, P=0.0047, 435+/-175 pg/ml vs 247+/-102 pg/ml, P=0.0005, respectively). Logistic regression analysis indicated that the highest quartile of IL-6 level immediately after the surgery (odds ratio 7.63; 95% CI, 1.06-54.9; P=0.04) and age (odds ratio 1.18; 95% CI, 1.01-1.39; P=0.04) independently predict postoperative AF. Furthermore, the maximum level of IL-6 immediately after the surgery significantly correlated to age and intraoperative blood loss (r=0.04, P=0.01, and r=0.47, P=0.04, respectively). CONCLUSIONS: Advanced age was a major risk factor for postoperative AF. Furthermore, inflammatory response induced by surgical trauma was also associated with the development of AF after off-pump CABG. |
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Authors:
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Keiichi Ishida; Fumio Kimura; Mizuho Imamaki; Atsushi Ishida; Hitoshi Shimura; Hiroki Kohno; Manabu Sakurai; Masaru Miyazaki |
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Publication Detail:
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Type: Journal Article Date: 2006-01-24 |
Journal Detail:
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Title: European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery Volume: 29 ISSN: 1010-7940 ISO Abbreviation: Eur J Cardiothorac Surg Publication Date: 2006 Apr |
Date Detail:
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Created Date: 2006-03-20 Completed Date: 2006-06-08 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8804069 Medline TA: Eur J Cardiothorac Surg Country: Germany |
Other Details:
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Languages: eng Pagination: 501-5 Citation Subset: IM |
Affiliation:
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Department of General Surgery, Graduate School of Medicine, Chiba University, Inohana 1-8-1 Chuo-ku, Chiba 260-0856, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Age Factors Aged Atrial Fibrillation / blood*, etiology Biological Markers / blood Coronary Artery Bypass, Off-Pump / adverse effects* Coronary Disease / pathology, surgery Cytokines / blood* Female Humans Inflammation Mediators / blood* Interleukin-6 / blood Logistic Models Male Middle Aged Risk Factors Systemic Inflammatory Response Syndrome / blood, etiology* |
| Chemical | |
Reg. No./Substance:
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0/Biological Markers; 0/Cytokines; 0/Inflammation Mediators; 0/Interleukin-6 |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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