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Kshivets wscts2019 sofia
1. Lymph Node Metastases
of Esophageal Cancer
and Blood Cell Circuit
Kshivets Oleg, MD, PhD
Surgery Department, Roshal Hospital,
Roshal, Moscow, Russia
2. Abstract
• Lymph Node Metastases of Esophageal Cancer and Blood Cell Circuit
• Kshivets Oleg Surgery Department, Roshal Hospital, Moscow, Russia
• OBJECTIVE: Significance of blood cell circuit in terms of detection of esophageal cancer (EC) patients (ECP)
with lymph node metastases was investigated.
• METHODS: We analyzed data of 543 consecutive ECP (age=56.4±8.8 years; tumor size=6±3.5 cm) radically
operated (R0) and monitored in 1975-2019 (m=405, f=138; esophagogastrectomies (EG) Garlock=280, EG
Lewis=263, combined EG with resection of pancreas, liver, diaphragm, aorta, VCS, colon transversum, lung,
trachea, pericardium, splenectomy=151; adenocarcinoma=308, squamous=225, mix=10; T1=126, T2=114,
T3=178, T4=125; N0=275, N1=69, N2=199; G1=157, G2=139, G3=247; early EC=107, invasive=436). Variables
selected for study were input levels of blood cell circuit, sex, age, TNMG. Differences between groups were
evaluated using discriminant analysis, clustering, nonlinear estimation, structural equation modeling, Monte
Carlo, bootstrap simulation and neural networks computing.
• RESULTS: It was revealed that separation of ECP with lymph node metastases (n=268) from ECP without
metastases (n=275) significantly depended on: erythrocytes (abs, total), leucocytes (total), segmented
neutrophils (total), eosinophils (%, abs, total), monocytes (%, abs, total), thrombocytes (abs), coagulation
time, protein, residual nitrogen, cell ratio factors (CRF) (ratio between cancer cells- CC and blood cells
subpopulations), T, G, tumor size, tumor growth, histology (P=0.045-0.000). Neural networks computing,
genetic algorithm selection and bootstrap simulation revealed relationships of lymph node metastases and
CRF: healthy cells/CC (rank=1), erythrocytes/CC (2), monocytes/CC (3), lymphocytes/CC (4), thrombocytes/CC
(5), segmented neutrophils/CC (6), eosinophils/CC (7), leucocytes/CC (8), stick neutrophils/CC (9). Correct
classification N0—N12 was 100% by neural networks computing (area under ROC curve=1.0; error=0.0).
• CONCLUSION: Lymph node metastases significantly depended on blood cell circuit.
6. Survival Rate:
• Alive……………………………………....................................284 (52.3%)
• 5-Year Survivors……………………………………………..…183 (33.7%)
• 10-Year Survivors………………………...................................98 (18%)
• Losses……………………..………………………………….….224 (41.3%)
• General Life Span=1892.4±2241 days
• For 5-Year Survivors=4311±2419.7 days
• For 10-Year Survivors=5903.4±2299.4 days
• For Losses=629.2±320.1 days
• Cumulative 5-Year Survival for N0-N12…………………….………51.9%
• Cumulative 5-Year Survival for N0…………..…………….………...73.9%
• Cumulative 5-Year Survival for N12………………………………....27.5%
7. Results of Univariate Analysis of Phase Transition N0—N1-2 in Prediction of
Esophageal Cancer Patients Survival (n=543):
Cumulative Proportion Surviving (Kaplan-Meier)
5-Year Survival of ECP with N0=73.9%; 5-Year Survival of ECP with N1-2=27.5%
P=0.00000 by Log-Rank Test
Complete Censored
0 5 10 15 20 25 30 35 40
Years after Esophagogastrectomies
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
CumulativeProportionSurviving
ECP with N1-2, n=268
ECP with N0, n=275