Research Article

A Retrospective Analysis of Thromboembolic Phenomena in Mechanically Ventilated Patients with COVID-19

Table 2

Characteristics of thirteen critically ill COVID-19 patients who developed hemorrhagic events.

ParametersPatients without TEP, n = 3Patients with TEP, n = 10

Age (years)55 (53–57)56 (54–60)
Sex (males/females)1/26/4
Body mass index (kg/m²)29 (27–31)30 (28–32)
Baseline SOFA score7 (6–9)8 (7–10)
Baseline APACHE II score20 (19–21)21 (19–23)
Comorbidities
Hypertension (yes/no)3/08/2
Diabetes mellitus (yes/no)1/25/5
Cardiovascular disease (yes/no)1/25/5
Cardiac arrhythmias (yes/no)1/25/5
Thromboembolic disease (yes/no)2/8
Chronic respiratory disorder (yes/no)4/6
End-stage kidney disease (yes/no)2/8
Hemorrhagic events and management
Minor hemorrhagic events (no transfusion, n)23
Major hemorrhagic events (transfusion required, n)7
Anticoagulation interrupted (n)37
Gastrointestinal bleeding requiring endoscopy (n)2
Intracranial hemorrhage (n)2
Massive transfusion protocol activated (n)4
Inferior vena cava filter placed (n)4
Serial ultrasound surveillance for DVT (n)310
Fatalities (n)2

TEP = thromboembolic phenomena; ICU = intensive care unit; APACHE II score = Acute Physiology and Chronic Health Evaluation II score; SOFA score = Sequential Organ Function Assessment score; DVT: deep vein thrombosis. Massive transfusion was defined as replacement of >1 blood volume in 24 hours or >50% of blood volume in 4 hours (adult blood volume is approximately 70 mL/kg).