title: Technique for creation of artificial pneumothorax for pain relief during radiofrequency ablation of peripheral lung tumors: report of seven cases.
abstract: This report describes seven cases in which a pneumothorax was artificially created for relief from severe pain that occurred during radiofrequency (RF) ablation of peripheral lung tumors. In this procedure, the multitined probe surrounding the lesion was advanced into the chest, displacing the tines and the peripheral tumor away from the parietal pleura and the chest wall and resulting in pain relief in one patient; in the remaining patients, an intravenous catheter was also introduced, followed by the administration of carbon dioxide (CO(2)) into the space between the tumor and the parietal pleura. The pain decreased considerably immediately after this procedure. No complication related to the creation of the artificial pneumothorax was observed. Creation of an artificial pneumothorax is a safe and effective method for pain relief.
authors.affiliation: Department of Radiology, Okayama University Medical School, 2-5-1 Shikatacho, Okayama 700-8558, Japan. takaoh@tc4.so-net.ne.jp
authors.forename: Takao
authors.initials: T
authors.lastname: Hiraki
authors.forename: Hideo
authors.initials: H
authors.lastname: Gobara
authors.forename: Kentaro
authors.initials: K
authors.lastname: Shibamoto
authors.forename: Hidefumi
authors.initials: H
authors.lastname: Mimura
authors.forename: Yuko
authors.initials: Y
authors.lastname: Soda
authors.forename: Mayu
authors.initials: M
authors.lastname: Uka
authors.forename: Yoshihisa
authors.initials: Y
authors.lastname: Masaoka
authors.forename: Shinichi
authors.initials: S
authors.lastname: Toyooka
authors.forename: Susumu
authors.initials: S
authors.lastname: Kanazawa
mesh_terms: D000368:Aged; D002245:Carbon Dioxide / Q000008:administration & dosage*; D017115:Catheter Ablation / Q000009:adverse effects*; D005260:Female; D006801:Humans; D007564:Japan; D008175:Lung Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000209:etiology / Q000517:prevention & control*; D010147:Pain Measurement; D011031:Pneumothorax, Artificial; D012720:Severity of Illness Index; D014057:Tomography, X-Ray Computed
chemical_list: D002245:Carbon Dioxide