ABSTRACT
Objective To investigate the feasibility of transient blocking of both pulmonary artery and veins for surgical treat- ment of central lung cancer with stage Ⅲ to preserve the normal pulmonary.Methods Firstly,the relation of the pulmonary artery, the lung neoplasm and the enlarged mediastinal lymph nodes was investigated.If the hilum of lung remained frozen,the pericardium was opened and the pulmonary artery,the upper and lower lobe pulmonary veins were dissected.Then those three vessels were blocked.When the pulmonary cireulation was stopped,bloodless lobectomy and pulmonary artery angioplasty and/or anastomosis were performed.Then the blockers were released,and pulmonary circulation was restored.The time of blocking was(35?15)minutes (16～66 minutes).Results All 20 patients suffer from stage Ⅲ central lung cancer,which' s the hila of lung remained frozen,re- ceived complete resection of the tumor.The normal functioning pulmonary tissue in the 20 patients was preserved instead of pneumone- ctomy.The average amount of bleeding was 256 ml(180～420 ml)during operation.All 20 patients recovered well.Conclusion Transient blocking of both pttlmonary artery and veins for surgical treatment of stage Ⅲ central lung cancer is and innovation in surgical technique,which makes the operation safe and easy.This technique may provide a chance to patients,with poor cardio-pulmonary function.In addition,this technique widens the surgical indications for patients suffering from lung cancer.