• Xue-Zhong Xing, Yong Gao, Hai-Jun Wang, Quan-Hui Yang, Chu-Lin Huang, Shi-Ning Qu, Hao Zhang, Hao Wang, Qing-Ling Xiao, and Ke-Lin Sun.
• Department of Intensive Care Unit, Cancer Hospital (Institute), Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China.
• World J Emerg Med. 2013 Jan 1;4(1):43-7.

BackgroundThis study aimed to investigate the risk factors and outcome of critically ill cancer patients with postoperative acute respiratory insufficiency.MethodsThe data of 190 critically ill cancer patients with postoperative acute respiratory insufficiency were retrospectively reviewed. The data of 321 patients with no acute respiratory insufficiency as controls were also collected. Clinical variables of the first 24 hours after admission to intensive care unit were collected, including age, sex, comorbid disease, type of surgery, admission type, presence of shock, presence of acute kidney injury, presence of acute lung injury/acute respiratory distress syndrome, acute physiologic and chronic health evaluation (APACHE II) score, sepsis-related organ failure assessment (SOFA), and PaO2/FiO2 ratio. Duration of mechanical ventilation, length of intensive care unit stay, intensive care unit death, length of hospitalization, hospital death and one-year survival were calculated.ResultsThe incidence of acute respiratory insufficiency was 37.2% (190/321). Multivariate logistic analysis showed a history of chronic obstructive pulmonary diseases (P=0.001), surgery-related infection (P=0.004), hypo-volemic shock (P<0.001), and emergency surgery (P=0.018), were independent risk factors of postoperative acute respiratory insufficiency. Compared with the patients without acute respiratory insufficiency, the patients with acute respiratory insufficiency had a prolonged length of intensive care unit stay (P<0.001), a prolonged length of hospitalization (P=0.006), increased intensive care unit mortality (P=0.001), and hospital mortality (P<0.001). Septic shock was shown to be the only independent prognostic factor of intensive care unit death for the patients with acute respiratory insufficiency (P=0.029, RR: 8.522, 95%CI: 1.243-58.437, B=2.143, SE=0.982, Wald=4.758). Compared with the patients without acute respiratory insufficiency, those with acute respiratory insufficiency had a shortened one-year survival rate (78.7% vs. 97.1%, P<0.001).ConclusionA history of chronic obstructive pulmonary diseases, surgery-related infection, hypovolemic shock and emergency surgery were risk factors of critically ill cancer patients with postoperative acute respiratory insufficiency. Septic shock was the only independent prognostic factor of intensive care unit death in patients with acute respiratory insufficiency. Compared with patients without acute respiratory insufficiency, those with acute respiratory insufficiency had adverse short-term outcome and a decreased one-year survival rate.

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