Computed tomography-guided percutaneous microwave ablation treatment for lung metastases from nasopharyngeal carcinoma

CT-guided percutaneous laser ablation of metastatic lung cancer: three cases report and literature review

Objective

To report the efficacy and safety of CT-guided percutaneous laser ablation (PLA) for metastatic lung tumors.

Methods

Three cases of metastatic lung cancer underwent CT-guided PLA, and we searched for previously published articles on the minimally invasive CT-guided RFA or MWA for lung tumors in recent five years.

Results

With the guidance of CT, all lesions had good prognosis under laser ablation. Case 1 suffering from severe pulmonary dysfunction and diffuse pulmonary bullae, had small pneumothorax. CT scan obtained four months following the ablation showed two lesions had complete responses and one partial response. Case 2 had successful complete response with absent lung mass, and also had a good postoperative condition without any discomfort in the two-month follow-up. Case 3 showed partial response and improved greatly after five months. 962 cases (mean age of 45.7 years, 62.2% male) of 1297 lung tumors with detailed information were identified from 27 articles. Of these cases, the minority manifested complications such as pneumothorax, hemoptysis, hemothorax, pneumonia, pain and fever.

Conclusions

Percutaneous CT-guided PLA could be a safe and promising minimally invasive treatment for patients with primary lung cancer or unresectable pulmonary metastases, especially multineedle PLA in large tumors, which still needs more large-scale prospective studies to convince this method in the future.

Value of ablation therapy in the treatment of lung metastases

Tumor metastases are the basic biological characteristics of malignant tumors, and the lungs are the second most prominent metastatic organs in which these develop after the liver. Currently, with the rapid development of ablation technology, ablation therapy as a local treatment is playing an increasingly important role in the treatment of lung metastases. Whether alone or in combination with other treatments, ablation therapy has achieved good therapeutic effects for the treatment of partial lung metastases. This article briefly summarizes the results of current and previous ablation treatments for lung metastases, and focuses on the value of ablation therapy for different kinds of lung metastases.