Preliminary Study of Using Normal Saline Injection to Prevent Pneumothorax in Percutaneous Needle Biopsy of Lung

Objective:To investigate the effect of using normal saline (NS) injection to prevent pneumothorax in percutaneous needle biopsy of lung.Methods:136 patients (55 years of age,n=36;55 years of age,n=100) having percutaneous needle biopsy were divided into two groups (group A,Group B),with 50 patients in each group.NS was injected via the needle during the percutancous needle biopsy operation in Group B.Results:Of the 136 patients,percutaneous needle biopsy of lung were successfully performed.2 cases in patients with the age 55 years of age had complicated pneumothorax,with the volume of gas 10%.Of the patients with the age 55 years,pneumothorax were seen more commonly.14 cases in Group A were complicated with pneumothorax,12 patients had the volume 10% and 2 patients 30%,subcutaneous emphysema was seen in 1 patient.Of the Group B,only 4 patients had pneumothorax with the volume 10%,the incidence rate of pneumothorax was obviously lower than that of Group A,morbidity including cough or expectoration was not occurred due to injection of NS.Conclusion:Injection of NS during percutaneous needle biopsy of lung can block the puncture pathway of visceral pleura in certain degree,and reduce the incidence rate of pneumothorax.