Efficacy of combined general epidural anesthesia on elderly patients with single lung ventilation

Objective To investigate the efficacy of combined general epidural anesthesia on elderly patients with single lung ventilation. Methods From July 2013 to July 2014, 30 elderly patients with single lung ventilation were selected, combined general epidural anesthesia was applied in surgery, and the index of lung ventilation and blood gas analysis at different points were analyzed. Results After the single lung ventilation, airway pressure (Paw), and pulmonary blood flow rate (QS/QT) were higher than those at double lung ventilation time, the differences were significant (P<0.05). One-lung ventilation in 5 min, oxygen pressure[PaO2, (183.20±23.20)mmHg, 1 mmHg=0.133 kPa] was lower than that of other time points after anesthesia, but partial pressure of carbon dioxide [PaCO2, (53.20±1.50)mmHg] was higher than that of other time points after anesthesia, the differences were significant (P<0.05). Conclusions Elderly single lung ventilation in patients with general anesthesia combined epidural anesthesia, may reduce the anaesthesia to use the dose, is worth applying the promotion. Key words: General anesthetics; Epidural anaesthesia; One lung ventilation