Artificial pneumothorax: a safe and simple method to relieve pain during microwave ablation of subpleural lung malignancy.

Abstract

BACKGROUND:

Microwave ablation has been extensively used for eliminating pulmonary tumors; however, it is usually associated with severe pain under local anesthesia. Decreasing the power and shortening the ablation time can help to relieve the pain; however, this leads to incomplete ablation and an increasing recurrence rate. This research aims to employ an artificial pneumothorax to increase both the curative effect and pain relief during the ablation procedure.

MATERIAL AND METHODS:

From July 2013 to January 2015, nine patients presenting with 10 subpleural lung tumors (age: 44-78 years) with a high possibility of severe pain underwent the artificial pneumothorax during microwave ablation. The pain assessment scores and complications induced by the artificial pneumothorax were recorded and analyzed by a CT scan follow-up.

RESULTS:

The tumors of the nine patients were eliminated successfully using microwave ablation with artificial pneumothorax under local anesthesia. The pain caused by the ablation was relieved to a great extent with an average rate of 94.66% (range: 63.3%-100%) and all tumors were ablated completely. No severe complications occurred after the operation.

CONCLUSIONS:

The artificial pneumothorax is a reliable therapy to improve the curative effect of microwave ablation under local anesthesia by relieving the pain of the patients.

• Authors: Xiaowei Hou, Xingjun Zhuang, Haiwen Zhang, Kai Wang, Yuanxin Zhang
• Journal: Minimally invasive therapy & allied technologies : MITAT : official journal of the Society for Minimally Invasive Therapy (Minim Invasive Ther Allied Technol) Vol. 26 Issue 4 Pg. 220-226 (Aug 2017) ISSN: 1365-2931 [Electronic] England
• PMID: 28281366 (Publication Type: Journal Article)

Topics

• Adult
• Aged
• Catheter Ablation (methods)
• Female
• Humans
• Lung Neoplasms (pathology, surgery)
• Male
• Microwaves
• Middle Aged
• Pain Management (methods)
• Pneumothorax, Artificial (adverse effects, methods)