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J. Huang



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    NU05 - Survivorship (ID 286)

    • Event: WCLC 2016
    • Type: Nurses Session
    • Track: Nurses
    • Presentations: 1
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      NU05.02 - Comprehensive Long-Term Care of Lung Cancer Patients: Development of a Novel Thoracic Survivorship Program (ID 6512)

      14:50 - 15:10  |  Author(s): J. Huang

      • Abstract
      • Presentation
      • Slides

      Abstract not provided

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    OA01 - Risk Assessment and Follow up in Surgical Patients (ID 371)

    • Event: WCLC 2016
    • Type: Oral Session
    • Track: Surgery
    • Presentations: 1
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      OA01.03 - Impact of Increasing Age on Cause-Specific Mortality and Morbidity in Stage I NSCLC Patients: A Competing Risk Analysis (ID 4952)

      11:20 - 11:30  |  Author(s): J. Huang

      • Abstract
      • Presentation
      • Slides

      Background:
      At the time of diagnosis, two-thirds of patients with lung cancer are ≥65 years of age with significant comorbidities. We sought to determine the short- and long-term cancer- and noncancer-specific mortality and morbidity in patients who underwent resection for stage I non-small cell lung cancer (NSCLC).

      Methods:
      Of 5371 consecutive patients who had undergone curative-intent resection of primary lung cancer (2000–2011), 2186 patients with pStage I NSCLC were included in the analysis. All preoperative clinical variables known to affect outcomes were considered, including, Charlson comorbidity index, predicted postoperative (ppo) diffusion capacity of the lung for carbon monoxide (DLCO), and ppo–forced expiratory volume in 1 second (FEV1). Association between factors and cause-specific mortality was performed using competing risks approach.

      Results:
      Of 2186 patients, 1532 patients (70.1%) were ≥65 years of age, including 638 patients (29.2%) ≥75 years of age. In patients ≥65 years of age, for up to 2.5 years after resection, noncancer-specific CID was higher than lung cancer–specific CID, the higher noncancer-specific early-phase mortality was enhanced in patients ≥75 years of age compared with 65-74 years of age (Figure 1a). Multivariable analyses adjusted by age, sex, smoking status, comorbidities, tumor size, and surgical procedures showed that low ppoDLCO was an independent predictor for severe morbidity (p<0.001), 1-year mortality (p<0.001), and noncancer-specific mortality (p<0.001), whereas low ppoFEV1 for lung cancer–specific mortality (p=0.002). PpoDLCO can be used for estimation of 5-year cumulative incidence of noncancer death (Figure 1b, right, red curve) because of its linear relation, whereas ppoFEV1 for lung cancer-specific death (Figure 1b, left, black curve).

      Conclusion:
      In patients undergoing curative-intent resection of stage I NSCLC, noncancer-specific mortality is a significant competing event, with increasing impact as patient age increases. Figure 1



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    P1.03 - Poster Session with Presenters Present (ID 455)

    • Event: WCLC 2016
    • Type: Poster Presenters Present
    • Track: Radiology/Staging/Screening
    • Presentations: 1
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      P1.03-084 - Implications of 8th Edition TNM Proposal: Invasive vs. Total Size for T Descriptor in pT1a-2bN0M0 Lung Adenocarcinoma (ID 5788)

      14:30 - 14:30  |  Author(s): J. Huang

      • Abstract
      • Slides

      Background:
      The aim of this study was to conduct a clinicopathological comparative analysis of total tumor versus invasive tumor size in pT1a-2bN0M0 nonmucinous lung adenocarcinomas.

      Methods:
      Resected pT1a-2bN0M0 lung adenocarcinomas (1995-2012) based on 8th edition of TNM classification using total (N=1475) and invasive tumor size (N=1482) were included. Recurrence free probability [RFP] and lung cancer-specific survival [LCSS]) were compared between both pT-staging systems using Kaplan-Meier method.

      Results:
      Use of invasive size for the T descriptor increased the number of pT1a tumors by 2 fold compared to use of total tumor size (316 vs. 161), with no difference in RFP and LCSS (RFP, 82% vs. 80%; LCSS, 94% vs. 93%). Use of invasive rather than total size also showed better stratification of lymphatic/vascular invasion and high-grade histological subtypes according to increasing pT stage. RFP and LCSS in invasive-size-based pT2b were lower than those in total-size-based pT2b (RFP, 44% vs. 60%; LCSS, 69% vs. 77%).

      Conclusion:
      In pT1a-2bN0M0 nonmucinous lung adenocarcinoma, the 8th edition TNM proposal to use invasive rather than total size for the pT descriptor gives better prognostic discrimination by capturing a larger number of patients with favorable prognosis (pT1a) and providing better stratification for pT2b. Figure 1 Figure 2





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