Acute Pulmonary Embolism in Patients with and without COVID-19

Predictors of pulmonary embolism in hospitalized patients with COVID-19

BACKGROUND

High venous thromboembolism (VTE) rates have been described in critically ill patients with COVID-19. We hypothesized that specific clinical characteristics may help differentiate hypoxic COVID-19 patients with and without a diagnosed pulmonary embolism (PE).

METHODS

We performed a retrospective observational case-control study of 158 consecutive patients hospitalized in one of four Mount Sinai Hospitals with COVID-19 between March 1 and May 8, 2020, who received a Chest CT Pulmonary Angiogram (CTA) to diagnose a PE. We analyzed demographic, clinical, laboratory, radiological, treatment characteristics, and outcomes in COVID-19 patients with and without PE.

RESULTS

92 patients were negative (CTA-), and 66 patients were positive for PE (CTA+). CTA + had a longer time from symptom onset to admission (7 days vs. 4 days, p = 0.05), higher admission biomarkers, notably D-dimer (6.87 vs. 1.59, p < 0.0001), troponin (0.015 vs. 0.01, p = 0.01), and peak D-dimer (9.26 vs. 3.8, p = 0.0008). Predictors of PE included time from symptom onset to admission (OR = 1.11, 95% CI 1.03-1.20, p = 0.008), and PESI score at the time of CTA (OR = 1.02, 95% CI 1.01-1.04, p = 0.008). Predictors of mortality included age (HR 1.13, 95% CI 1.04-1.22, p = 0.006), chronic anticoagulation (13.81, 95% CI 1.24-154, p = 0.03), and admission ferritin (1.001, 95% CI 1-1.001, p = 0.01).

CONCLUSIONS

In 158 hospitalized COVID-19 patients with respiratory failure evaluated for suspected PE, 40.8% patients had a positive CTA. We identified clinical predictors of PE and mortality from PE, which may help with early identification and reduction of PE-related mortality in patients with COVID-19.

Changing face of pulmonary embolism with COVID-19

AIM

This study aimed to describe the baseline characteristics of coronavirus disease 2019 (COVID-19) patients with pulmonary embolism, and to examine the Geneva score, pulmonary embolism severity index (PESI), radiological and biochemical findings.

METHODS

From March 2020 to June 2021, the files of 41 COVID-19 patients with pulmonary embolism were accessed.

RESULTS

Mean D-dimer value was 6.04 mg/dl and 61% of the patients received at least one dose of anticoagulant treatment. In patients receiving deep venous thrombosis prophlaxis, an optimal D-dimer cut-off point was calculated as 5.69 mg/dl. The area under the curve was 0.753 (p = 0.007; sensivity 64%; specificity 62.5%). The mean Geneva score was 4.31, mean PESI was 72.48 and mean Qanadli score was 11.29.

CONCLUSIONS

According to this study, traditional clinical predictive scores had little discriminatory power in these patients, and a higher D-dimer cut-off value should be considered to better diagnose patients for pulmonary embolism.