Risk factors for postoperative pneumonia

摘要: Prospectively studied were 520 patients undergoing elective thoracic, upper abdominal and lower surgeries to analyze risk factors for postoperative pneumonias. Over-all, pneumonias developed in 91 of the (17.5 percent). The acquisition pneumonia was highly associated with preoperative markers severity underlying diseases such as low serum albumin concentrations on admission (P less than 0.005) high American Society Anesthesiologists pre-anesthesia physical status classification 0.0001). History smoking 0.001), longer stays 0.0001), operative procedures 0.0001) thoracic or sites surgery also significant Although massive obesity, old age male sex increased incidences pneumonia, statistical significance lost when these variables controlled site duration surgery. We able identify define a subpopulation which negligible. by low-risk patient should alert physician possibility potentially preventable nosocomial infection.