Improved ventilatory function after combined operation for pulmonary emphysema and lung cancer

Smoking is the leading cause of both lung cancer and emphysema. Therefore, some patients with stage I and II disease will present with contra-indications to resection including a predicted postoperative FEV1 of less than 0.81 or a VO2max of less than 10 ml/kg/min. Recently, lung volume reduction surgery (LVRS) has re-emerged in the management of emphysema with excellent results.

2 patients are reported with lung cancer in the left lower lobe and emphysematous destruction in both upper lobes. They, respectively, had a predicted postoperative FEV1 of 0.9211 and 0.6851. No metastases were present. Pre-operatively, a COPD index of 0.9 and 0.7 was calculated. A left lower lobectomy together with volume reduction of the left upper lobe was performed through a standard posterolateral thoracotomy.

Pathological examination showed, respectively, stage IIb and stage Ib disease. The postoperative course was uneventful and 3 months later a FEV1 of 1.441 for patient 1 and 1.041 for patient 2 were recorded.

These findings suggest that pulmonary function criteria for pulmonary resection have to be revised when patients can undergo simultaneous lung cancer resection and LVRS. The pre-operatively calculated COPD index can be used to predict which patients may not have a decrease in ventilatory function.