title: [Radiofrequency ablation (RFA) of lung metastases from colorectal cancer (CRC)-one-year follow-up].
abstract: Assess the safety and evidence of efficacy of RFA for colorectal (CRC) lung metastases with follow up to 1 year. Twenty-three patients had percutaneous RFA for 52 colorectal pulmonary metastases under fluoro-CT. Patients received IV conscious sedation and local analgesia with routine hospitalisation/monitoring for 24 h post RFA. Patients had CT scanning at 1 month and then 3 monthly with serum CEA assessment monthly and 3 monthly. All ablations were technically successful. Tumor diameter ranged from 0.3 to 4.2 cm. Pneumothorax occurred in 43% (10 of 23) of patients. Six patients required intercostal chest drain placement. Six patients had a second RFA, 4 for new lesions and 2 patients had a previously treated lesion retreated. Median admission was 2.0 days (range 1-9). Median follow-up is 428 days (range 173-829), with data reported to 1 year in this paper. Five patients died at 5, 6, 8, 8 and 12 months post RFA from extra-pulmonary (1) or widespread (4) disease. One patient developed malignant pleural effusion at 6 months after RFA. Cavitation was seen in nine treated lesions (17%), all resolved with scar tissue contraction by 12 months. Eighteen patients with CT scan follow-up at one year have 40 lesions classified as: disappeared (17), decreased (5), stable/same size (4), increased (14). Percutaneous imaging-guided RFA of multiple CRC pulmonary metastases is a minimally invasive treatment option with modest morbidity. A significant proportion of patients show good evidence of successful local control at one year.
authors.affiliation: Universitätsinstitut für Radiologie, Kantonsspital Basel. ksteinke@uhbs.ch
authors.forename: K
authors.initials: K
authors.lastname: Steinke
authors.forename: J
authors.initials: J
authors.lastname: King
authors.forename: D
authors.initials: D
authors.lastname: Glenn
authors.forename: D L
authors.initials: DL
authors.lastname: Morris
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D017115:Catheter Ablation / Q000295:instrumentation*; D015179:Colorectal Neoplasms / Q000000981:diagnostic imaging / Q000401:mortality / Q000601:surgery*; D018450:Disease Progression; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging / Q000401:mortality / Q000556:secondary* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000000981:diagnostic imaging / Q000401:mortality / Q000601:surgery; D012086:Reoperation; D025321:Surgery, Computer-Assisted / Q000295:instrumentation*; D015996:Survival Rate; D014057:Tomography, X-Ray Computed / Q000295:instrumentation*