Abstract
Objective To investigate the change of P(A-a) O_2,D-Dimer and troponin T at emergency dyspnea in postoperative lung cancer patients.Methods Three types of lung cancer patients were chosen for analysis (acute respiratory distress syndrome,acute pulmonary embolism and acute left heart failure) from the 1 st of January,2007 to the 30th of September,2009 in our hospital,with 43 cases in each group.The items for cutuparison included P(A-a)O_2,D-Dimer and troponin T.Results Hypoxemia and high P(A-a)O_2 occured in all patients.The level of P (A-a)O_2 is the highest in acute left heart failure patients((58.81±9.9)mm Hg).There were very higher D-dimer in acute pulmonary embolism patients,and mildly increased in acute respiratory distress syndrome patients and acute left heart failure patients.There were higher troponin T in acute pulmonary embolism patients and acute left heart failure patients,and normal in acute respiratory distress syndrome patients.Conclusions Blood gas measurement of P(A-a)O_2,D-Dimer,troponin T combine with clinical situation,are useful in diagnosis of emergency dyspnea patients in postoperative lung cancer patients. Key words: Dyspnea; Blood gas analysis; D-Dimer; Troponin T
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