OBJECTIVE: 5-survival (5YS) and life span after radical surgery for non-small cell lung cancer (LC) patients (LCP) (T1 -4N0-2M0) –alive supersysems was analyzed. The importance
must be stressed of using complex system analysis, artificial intelligence (neural networks computing), simulation modeling and statistical methods in combination, because the
different approaches yield complementary pieces of prognostic information.
METHODS:We analyzed data of 782 consecutive LCP (age=57.6± 8.3 years; tumor size=4.1± 2.4 cm) radically operated and monitored in 1985- 2024 (m=670, f=112; upper
lobectomies=282, lower lobectomies=179, middle lobectomies=18, bilobectomies=46, pneumonectomies=257, mediastinal lymph node dissection=782; combined procedures with
resection of trachea, carina, atrium, aorta, VCS, vena azygos, pericardium, liver, diaphragm, ribs, esophagus=198; only surgery -S=626, adjuvant chemoimmunoradiotherapy-AT=156:
CAV/gemzar + cisplatin + thymalin/taktivin + radiotherapy 45- 50Gy; T1=326, T2=258, T3=137, T4=61; N0=525, N1=133, N2=124, M0=782; G1=199, G2=248, G3=335; squamous=422,
adenocarcinoma=310, large cell=50; early LC=218, invasive LC=564; right LC=420, left LC=362; central=294; peripheral=488. Variables selected for study were input levels of 45 blood
parameters, sex, age, TNMG, cell type, tumor size. Regression modeling, clustering, SEPATH, Monte Carlo, bootstrap and neuralnetworks computing were used to determine
significant dependence.
RESULTS:Overall life span (LS) was 2252.1±1742.5 days and cumulative 5- year survival (5YS) reached 73.2%, 10 years –64.8%, 20 years –42.5%. 513 LCP lived more than 5 years
(LS=3124.6±1525.6 days), 148 LCP –more than 10 years (LS=5054.4± 1504.1 days).199 LCP died because of LC (LS=562.7± 374.5 days). 5YSof LCP after bi/lobectomies was
significantly superior in comparison with LCP after pneumonectomies (78.1% vs.63.7%, P=0.00001by log- rank test). AT significantly improved 5YS (66.3% vs. 34.8%) (P=0.00000 by
log-rank test) only for LCP with N1-2. Cox modeling displayed that 5YS of LCP significantly depended on: phase transition (PT) early-invasive LC in terms of synergetics, PT N0—N12,
cell ratio factors (ratio between cancer cells- CC and blood cells subpopulations), G1-3, histology, glucose, AT, blood cell circuit, prothrombin index, heparin tolerance, recalcification
time (P=0.000- 0.038). Neural networks, genetic algorithm selection and bootstrap simulation revealed relationships between 5YS and PT early -invasive LC (rank=1), PT N0—N12
(rank=2), thrombocytes/CC (3), erythrocytes/CC (4), eosinophils/CC (5), healthy cells/CC (6), lymphocytes/CC (7), segmented neutrophils/CC (8), stick neutrophils/CC (9),
monocytes/CC (10); leucocytes/CC (11). Correct prediction of 5YS was 100% by neural networks computing (area under ROC curve=1.0; error=0.0).
CONCLUSIONS: 5YS of LCP after radical procedures significantly depended on: 1) PT early-invasive cancer; 2) PT N0--N12; 3) cell ratio facto rs; 4) blood cell circuit; 5) biochemical
factors; 6) hemostasis system; 7) AT; 8) LC characteristics; 9) LC cell dynamics; 10) surgery type: lobectomy/pneumonectomy; 11)anthropometric data. Optimal diagnosis and
treatment strategies for LC are: 1) screening and early detection of LC; 2) availability of experienced thoracic surgeons becaus e of complexity of radical procedures; 3) aggressive en
block surgery and adequate lymph node dissection for completeness; 4) precise prediction; 5) adjuvant chemoimmunoradiotherapyfor LCP with unfavorable prognosis.
Abstract