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Table 1 Univariate analyses of clinicopathological factors associated with thrombosis in the pulmonary vein stump

From: Left upper lobectomy can be a risk factor for thrombosis in the pulmonary vein stump

  Patients with thrombosis (n = 5) Patients without thrombosis (n = 146) P value
Age, median value (range), years old 75 (56–81) 72 (38–82) 0.5052
Sex, n (%)    
 Male / Female 4 (80.0) / 1 (20.0) 97 (66.4) / 49 (33.6) 0.4631
Brinkman index, median value (range) 750 (0–1200) 600 (0–3180) 0.6092
Comorbidity, n (%)    
 History of malignant disease 2 (40.0) 37 (25.3) 0.3849
 Hypertension 2 (40.0) 77 (52.7) 0.4560
 Diabetes mellitus 0 (0) 22 (15.1) 0.4498
 Cerebral infarction 0 (0) 11 (7.5) 0.6815
 Arrhythmia 0 (0) 15 (10.3) 0.5883
 Cardiovascular disease 0 (0) 19 (13.0) 0.5055
 Anti-coagulate drug 0 (0) 38 (26.0) 0.2294
 Steroids 0 (0) 3 (2.1) 0.9033
Operative approach, n(%)    
 Thoracotomy / VATS 4 (80.0) / 1 (20.0) 113 (77.4) / 33 (22.6) 0.6858
Procedure, n (%)    
 RUL, RML 0 (0) 63 (43.2) <0.001
 RLL 0 (0) 30 (20.5)  
 LUL 5 (100) 23 (15.8)  
 LLL 0 (0) 30 (20.5)  
Operative time, median value (range), minutes 301 (240–425) 295 (143–482) 0.8069
Dissection of mediastinal lymph nodes, n (%) 4 (80.0) 132 (90.4) 0.4117
Blood loss, median value (range), ml 90 (50–750) 60 (0–1500) 0.2082
Duration of postoperative drainage, median value (range), days 4 (2–4) 4 (2–12) 0.6149
Postoperative hospital stay, median value (range), days 15 (7–28) 10 (5–179) 0.1828
Postoperative complication, n (%) 2 (40.0) 38 (26.0) 0.3990
Diagnosis, n (%)    
 Primary / Metastasis / Benign 5 (100) / 0 (0) / 0 (0) 134 (91.8) / 10 (6.8) / 2 (1.4) 0.7999
Pathological stage, n (%)    
 I / II / III 4 (80) / 0 (0) / 1 (20) 97 (66.4) / 14 (9.6) / 21 (14.4) 0.7378
Adjuvant chemotherapy, n (%) 1 (20.0) 44 (30.1) 0.5310