RESUMEN
PurposeOur aim is to identify the prevalence and distribution of pulmonary thromboembolism in COVID-19 infected patients in our hospital. Materials and MethodsData of all patients with COVID-19 infection either on RT-PCR testing or non-contrast high resolution CT(HRCT) who had CT pulmonary angiography (CTPA) from April to June 2020 were included. 133 patients were initially included in the study, 7 were excluded leaving a total number of 126 patients. ResultsTwenty (15.8%) patients had evidence of pulmonary embolism (PE) on CTPA with mean age of 50 years (ranging 31-85) with 95% males. The mean D-dimer was 5.61mcg/mL among the PE-negative and 14.49 mcg/mL in the PE-positive groups respectively. Among the patients with evidence of pulmonary embolism on CTPA almost half required admission to intensive care unit in comparison to only one-fifth with negative CTPA. One-fourth died among the PE positive group with only 5% died among the PE negative group. There was a 33% reduction in the development of PE in the COVID-19 patients who had received low molecular weight heparin (LMWH) prior to their CTPA study versus those who had not. ConclusionD dimers correlate well with the incidence of pulmonary embolism among COVID-19 patients. Our data suggest that majority of our patients, developed pulmonary embolisms within 5 days into their hospital stay, accounting to almost two thirds of all positive cases diagnosed by CTPA. Those with PE among COVID-19 patients have high chances of ICU admission and mortality. Use of thromboprophylaxis early on might reduce the incidence of PE.
