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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/8651


    Title: Evaluation of the effect of cumulative operator experience on hepatocellular carcinoma recurrence after primary treatment with radiofrequency ablation
    Authors: Lee, TY;Lin, JT;Ho, HJ;Wu, MS;Wu, CY
    Contributors: Division of Health Services and Preventive Medicine
    Abstract: Purpose To investigate the association between cumulative operator volume and the risk of hepatocellular carcinoma (HCC) recurrence after potentially curative radiofrequency ablation (RFA). Materials and Methods This study was approved by the Research Ethics Committee. By using the Taiwan National Health Insurance Research Database, 52 096 patients with HCC were identified between July 1, 2004, and December 31, 2011. In total, 2827 patients were selected who underwent potentially curative RFA for newly diagnosed HCC. These patients were grouped into quintiles according to the cumulative operator volumes. Patients in the lowest or the highest quintiles were 1:1 matched according to their propensity scores. Finally, two separate groups, each containing 406 patients, were recruited in the high- and low-volume groups (cumulative operator volume of >/=79 cases and </=10 cases, respectively). Cumulative incidences of and hazard ratios for HCC recurrence were analyzed after adjusting for competing mortality. Results The HCC recurrence rate of the high-volume group was significantly lower than that of the low-volume group (high-volume group 5-year recurrence rate of 65.8%, 95% confidence interval [CI]: 59.5%, 72.1%; low-volume group 5-year recurrence rate of 71.4%, 95% CI: 66.2%, 76.5%; P < .05). In modified Cox regression analysis, the highest cumulative operator volume was independently associated with a decreased risk of HCC recurrence (hazard ratio, 0.80; 95% CI: 0.67, 0.97; P < .05). Multivariable stratified analyses verified the association between the highest cumulative operator volume and decreased HCC recurrence in almost all subgroups. Conclusion The risk of HCC recurrence could be significantly decreased by experienced RFA operators. Further studies based on cumulative operator volume may be helpful in improving the quality of RFA for HCC.
    Date: 2015-07
    Relation: Radiology. 2015 Jul;276(1):294-301.
    Link to: http://dx.doi.org/10.1148/radiol.15141864
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0033-8419&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000359708400033
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84937044407
    Appears in Collections:[林肇堂] 期刊論文

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