1. Pulmonary embolism in patients with COVID-19: incidence, risk factors, clinical characteristics, and outcome
- Author
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Fahd Beddar Chaib, Maria Adroher Muñoz, Juan González del Castillo, Anna Palau-Vendrell, Eric Jorge García-Lamberechts, Sònia Jiménez, Pere Llorens, Carlos Cardozo, Nieves López-Laguna, Josep Maria Mòdol Deltell, Alexandre Mebazaa, Alfons Aguirre Tejedo, Víctor Gil, Aitor Alquézar-Arbé, Òscar Miró, Guillermo Burillo-Putze, Matilde González Tejera, Josep Tost, Yonathan Freund, Carmen Del Arco Galán, Josep Maria Guardiola, Alfonso Martín, Pascual Piñera, Teresa Agudo Villa, Francisco Javier Martín-Sánchez, Lluís LLauger García, María Carmen Ponce, Javier Jacob, María Pilar López Díez, and Eva Quero Motto
- Subjects
medicine.medical_specialty ,Population ,030204 cardiovascular system & hematology ,Chest pain ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,medicine ,030212 general & internal medicine ,education ,Outcome ,education.field_of_study ,Clinical characteristics ,SARS-CoV-2 ,business.industry ,Incidence ,Incidence (epidemiology) ,Pulmonary embolism ,COVID-19 ,Retrospective cohort study ,Odds ratio ,medicine.disease ,Confidence interval ,Risk factors ,Heart failure ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business - Abstract
Aims We investigated the incidence, risk factors, clinical characteristics, and outcomes of pulmonary embolism (PE) in patients with COVID-19 attending emergency departments (EDs), before hospitalization. Methods and Results We retrospectively reviewed all COVID-19 patients diagnosed with PE in 62 Spanish EDs (20% of Spanish EDs, case group) during the first COVID-19 outbreak. COVID-19 patients without PE and non-COVID-19 patients with PE were included as control groups. Adjusted comparisons for baseline characteristics, acute episode characteristics, and outcomes were made between cases and randomly selected controls (1:1 ratio). We identified 368 PE in 74 814 patients with COVID-19 attending EDs (4.92‰). The standardized incidence of PE in the COVID-19 population resulted in 310 per 100 000 person-years, significantly higher than that observed in the non-COVID-19 population [35 per 100 000 person-years; odds ratio (OR) 8.95 for PE in the COVID-19 population, 95% confidence interval (CI) 8.51–9.41]. Several characteristics in COVID-19 patients were independently associated with PE, the strongest being D-dimer >1000 ng/mL, and chest pain (direct association) and chronic heart failure (inverse association). COVID-19 patients with PE differed from non-COVID-19 patients with PE in 16 characteristics, most directly related to COVID-19 infection; remarkably, D-dimer >1000 ng/mL, leg swelling/pain, and PE risk factors were significantly less present. PE in COVID-19 patients affected smaller pulmonary arteries than in non-COVID-19 patients, although right ventricular dysfunction was similar in both groups. In-hospital mortality in cases (16.0%) was similar to COVID-19 patients without PE (16.6%; OR 0.96, 95% CI 0.65–1.42; and 11.4% in a subgroup of COVID-19 patients with PE ruled out by scanner, OR 1.48, 95% CI 0.97–2.27), but higher than in non-COVID-19 patients with PE (6.5%; OR 2.74, 95% CI 1.66–4.51). Adjustment for differences in baseline and acute episode characteristics and sensitivity analysis reported very similar associations. Conclusions PE in COVID-19 patients at ED presentation is unusual (about 0.5%), but incidence is approximately ninefold higher than in the general (non-COVID-19) population. Moreover, risk factors and leg symptoms are less frequent, D-dimer increase is lower and emboli involve smaller pulmonary arteries. While PE probably does not increase the mortality of COVID-19 patients, mortality is higher in COVID-19 than in non-COVID-19 patients with PE.
- Published
- 2021
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