Assessments of the associations of thrombus localization with accompanying disorders, risk factors, D-dimer levels, and the red cell distribution width in pulmonary embolism

Aysel Sunnetcioglu, Bunyamin Sertogullarindan, Bulent Ozbay, Selvi Asker, Salemi Ekin, Aysel Sunnetcioglu, Bunyamin Sertogullarindan, Bulent Ozbay, Selvi Asker, Salemi Ekin

Abstract

Objective: Pulmonary embolisms occur as a wide spectrum ranging from clinically asymptomatic thrombi to massive thrombi that lead to cardiogenic shock. The purpose of this study was to determine the associations of thrombus localization with risk factors, accompanying disorders, D-dimer levels and the red blood cell distribution width in patients with pulmonary embolism.

Material and methods: In 148 patients diagnosed with pulmonary embolism, the presence and anatomical localization of the thrombus were assessed via computed tomographic pulmonary angiography. The accompanying disorders, risk factors, serum D-dimer levels, and red blood cell distribution width of the patients were retrospectively evaluated. ClinicalTrials.gov: NCT02388841.

Results: The mean age of the patients was 54±16.0 years, and 48 patients were ≥65 years of age. The most frequent accompanying disorders were chronic obstructive pulmonary disease (22%) and malignancy (10.1%), and the most frequent risk factors were recent operation (14.1%) and immobilization (18.2%). Thrombi were most frequently observed in the right pulmonary artery (37.8%). In 31% of the patients, the thrombus was localized to the main pulmonary arteries. Immobile patients exhibited a higher proportion of thrombi in the main pulmonary arteries than mobile patients. The mean D-dimer level and the mean red blood cell distribution width in the patients with thrombi in the main pulmonary arteries were higher than those in the patients with thrombi in more distal pulmonary arterial branches.

Conclusion: Significant associations of proximally localized thrombi with immobilization, the D-dimer levels, and the red blood cell distribution width were observed.

Conflict of interest statement

No potential conflict of interest was reported.

Figures

Figure 1
Figure 1
Box plot showing red blood cell distribution width in main pulmonary arteries and smaller arterial branches values.
Figure 2
Figure 2
Receiver operating characteristic curve of red blood cell distribution width for predicting the presence of main pulmonary arteries thrombus in studied patients.

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Source: PubMed

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