Research Article

Major Bleeding in Adults Undergoing Peripheral Extracorporeal Membrane Oxygenation (ECMO): Prognosis and Predictors

Table 1

Clinical characteristics of ECMO patients with and without major bleeding.

CharacteristicsAll patients (n = 105)Patients with major bleeding (n = 33)Patients without major bleeding (n = 72)

Age (yrs)39 [30; 52]39 [30; 54]40 [31; 51]0.923
Gender, male51 (48.5)13 (39.4)38 (52.8)0.287
BMI
Comorbidities
 Hypertension9 (8.5)3 (9.0)6 (8.3)0.12
 Diabetes mellitus2 (1.9)0 (0)2 (0)
 Coronary artery disease2 (1.9)1 (0.95)1 (0.95)
 Coagulation disorder0 (0)0 (0)0 (0)
 Malignancy0 (0)0 (0)0 (0)
 Gastroduodenal ulcer1 (0.95)0 (0)1 (0.95)
Diagnosis
 Acute myocarditis42 (40.0)14 (42.4)28 (38.9)0.352
 ARDS40 (38.1)9 (27.2)31 (43.1)
 AMI12 (11.4)5 (15.2)7 (9.7)
 Others11 (10.5)5 (15.2)6 (8.3)
ECMO indications
 Cardiac60 (57.1)22 (66.7)38 (55.5)0.081
 Pulmonary44 (41.9)10 (30.3)34 (47.2)
 ECPR1 (1.0)1 (3.0)0 (0.0)
ECMO modalities
 VA61 (58.1)23 (69.7)38 (52.8)0.238
 VV38 (36.2)8 (24.2)30 (41.7)
 VAV6 (5.7)2 (6.1)4 (5.5)
Pre-ECMO APACHE-II score20 [15; 25]22 [19; 26]19 [15; 23]0.163
Pre-ECMO SOFA score11 [9; 13]11 [10; 14]11 [9; 13]0.550
Pre-ECMO cardiac arrest13 (12.3)6 (18.2)7 (9.7)0.337
Coagulation profile
 Platelet count (× 109/L)190 [117; 258]142 [68; 246]198 [139; 258]0.037
 INR1.4 [1.1; 1.6]1.4 [1.2; 2.4]1.3 [1.1; 1.5]0.09
 APTT (s)39 [30; 55]42 [36; 61]36 [29; 54]0.04
 Fibrinogen (g/L)3.5 [3.4; 4.1]3.5 [2.7; 4.9]3.7 [2.5; 4.5]0.82
Blood products transfusion during ECMO
 RBC (ml)126 [58–230]230 [131–245]101 [44–126]<0.001
 PLT (ml)31 [0–137]167 [45–321]0 [0–44]<0.001
 FFP + cry (units)2 [1; 8]8 [4; 14]0 [0; 4]<0.001
ECMO complications
 Nosocomial infections42 (40.0)17/33 (51.5)25 (34.7)0.159
 AKI77 (73.3)23/33 (69.4)59 (81.8)0.270
Outcomes
 Successful ECMO weaning81 (77)20 (60)61 (85)0.013
 ECMO mortality24 (22.8)13 (39.4)11 (15.3)0.013
 ICU mortality29 (27.6)16 (48.4)13 (18.0)0.002
 In-hospital mortality30 (28.6)17 (51.5)13 (18)<0.001

Data are presented as n (%) categorical variables and median (interquartile range) for nonparametric variables. ARDS, acute respiratory distress syndrome; AMI, acute myocardial infarction; RBC, red blood cell; PLT, platelet count; FFP, fresh frozen plasma; Cry, cryoprecipitate; AKI, acute kidney injury was defined by KDIGO criteria; ECMO, extracorporeal membrane oxygenation.