title: The use of PTC and RFA as treatment alternatives with low procedural morbidity in non-small cell lung cancer.
abstract: Minimally invasive percutaneous ablative therapies for treating lung cancers are currently being studied as treatment alternatives. This present study investigated the efficacies of percutaneous thoracic cryotherapy (PTC) and radiofrequency ablation (RFA) on clinical courses of pulmonary malignant tumours, especially in the setting of non-surgical candidates. Sixty-five patients with lung malignancy underwent sixty-seven sessions of RFA and nine sessions of PTC. We evaluated the results of RFA and PTC including efficacies, local progression rate, survival rate, and complications. Twenty-nine patients (43.3%) treated with RFA and six patients (66.7%) with PTC attained complete ablation. In small-sized lung mass (3 cm), complete ablation rate of RFA and PTC was increased to 76.2% and 85.7%, respectively. Additionally, we have found that the complete ablation group had significantly higher survival duration and progression free survival duration compared with the partial ablation group. Moreover, the complication profile was acceptable and the pain associated with the procedures disappeared within 1 day; 42 patients (62.7%) after RFA and all patients after PTC. This study provides evidence for the use of PTC and RFA as treatment alternatives with low procedural morbidity in the management of inoperable pulmonary malignant tumours, although the current study is limited by the small sample size and the short follow-up period.
authors.affiliation: Department of Internal Medicine and Research Center for Pulmonary Disorders, Chonbuk National University Medical School, Jeonju, Jeonbuk, South Korea.
authors.forename: Yeong Hun
authors.initials: YH
authors.lastname: Choe
authors.forename: So Ri
authors.initials: SR
authors.lastname: Kim
authors.forename: Kyung Sun
authors.initials: KS
authors.lastname: Lee
authors.forename: Ka Young
authors.initials: KY
authors.lastname: Lee
authors.forename: Seoung Ju
authors.initials: SJ
authors.lastname: Park
authors.forename: Gong Yong
authors.initials: GY
authors.lastname: Jin
authors.forename: Yong Chul
authors.initials: YC
authors.lastname: Lee
mesh_terms: D000368:Aged; D002289:Carcinoma, Non-Small-Cell Lung / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D017115:Catheter Ablation / Q000009:adverse effects / Q000379:methods*; D003452:Cryosurgery / Q000009:adverse effects / Q000379:methods*; D018450:Disease Progression; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D019060:Minimally Invasive Surgical Procedures / Q000379:methods; D009367:Neoplasm Staging; D010149:Postoperative Pain / Q000209:etiology; D016019:Survival Analysis; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome