Matrix Metalloproteinase-9 Production following Cardiopulmonary Bypass Was Not Associated with Pulmonary Dysfunction after Cardiac Surgery

Autor: Che Hao Hsu, Yi Wen Lin, Chih-Yuan Lin, Go-Shine Huang, Yi-Ting Tsai, Chien Sung Tsai, Tso-Chou Lin, Zhi-Fu Wu, Feng Yen Lin, Chi Yuan Li
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Mediators of Inflammation
Mediators of Inflammation, Vol 2015 (2015)
ISSN: 0962-9351
DOI: 10.1155/2015/341740
Popis: Background. Cardiopulmonary bypass (CPB) causes release of matrix metalloproteinase- (MMP-) 9, contributing to pulmonary infiltration and dysfunction. The aims were to investigate MMP-9 production and associated perioperative variables and oxygenation following CPB.Methods. Thirty patients undergoing elective cardiac surgery were included. Arterial blood was sampled at 6 sequential points (before anesthesia induction, before CPB and at 2, 4, 6, and 24 h after beginning CPB) for plasma MMP-9 concentrations by ELISA. The perioperative laboratory data and variables, including bypass time, PaO2/FiO2, and extubation time, were also recorded.Results. The plasma MMP-9 concentrations significantly elevated at 2–6 h after beginning CPB (P<0.001) and returned to the preanesthesia level at 24 h (P=0.23), with predominant neutrophil counts after surgery (P<0.001). The plasma MMP-9 levels at 4 and 6 h were not correlated with prolonged CPB time and displayed no association with postoperative PaO2/FiO2, regardless of reduced ratio from preoperative342.9±81.2to postoperative207.3±121.3 mmHg (P<0.001).Conclusion. Elective cardiac surgery with CPB induced short-term elevation of plasma MMP-9 concentrations within 24 hours, however, without significant correlation with CPB time and postoperative pulmonary dysfunction, despite predominantly increased neutrophils and reduced oxygenation.
Databáze: OpenAIRE