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Luciana Carrupt Machado Sogame, Milena Carlos Vidotto, José Roberto Jardim and Sonia Maria Faresin


It has been shown that craniotomy may lead to a decrease in lung volumes and arterial blood gas tensions as well as a change in the respiratory pattern. The purpose of this study was to determine the incidence of postoperative pulmonary complications (PPCs) and the mortality rate in patients who have undergone elective craniotomy and to evaluate the associations between preoperative and postoperative variables and PPCs in this population.


Two hundred thirty-six patients were followed up based on a protocol including a clinical questionnaire, physical examination and observation of clinical characteristics in the preoperative period, type of surgery performed, duration of surgery, time spent in the intensive care unit (ICU) and hospital, and the occurrence of any PPCs.


Postoperative pulmonary complications occurred in 58 patients (24.6%) and 23 other patients (10%) died. Predicting factors for PPCs according to multivariate analyses were as follows: type of surgery performed (p < 0.0001), prolonged mechanical ventilation ≥ 48 hours (p < 0.0001), time spent in the ICU > 3 days (p < 0.0001), decrease in level of consciousness (p < 0.002), duration of surgery ≥ 300 minutes (p < 0.01), and previous chronic lung disease (p < 0.04).


The incidence from March 2003 to March 2005 of PPCs in patients who had undergone craniotomy was 25% and death occurred in 10%. Some risk factors for PPCs may be predicted such as the type of surgery performed, prolonged mechanical ventilation, a longer time in the ICU, a decreased level of consciousness, duration of surgery, and previous chronic lung disease.