Related Experiment Video
Updated: Nov 11, 2025

Point-Of-Care Ultrasound Screening for Proximal Lower Extremity Deep Venous Thrombosis
Published on: February 10, 2023
Pulmonary embolism secondary to deep venous thrombosis: A retrospective and observational study for clinical
Xiaoying Chen1, Xian Liu1, Jinglun Liu1
1The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
Objective:
To investigate the risk factors, predilection sites in pulmonary embolism (PE) patients caused by deep venous thrombosis (DVT) and explore the value of scoring systems in assessing the risk of PE in DVT patients.
Methods:
A total of 692 DVT patients were enrolled, and divided into no pulmonary embolism (NPE, 226, 32.66%), silent pulmonary embolism (SPE, 330, 47.67%) and featuring pulmonary embolism (FPE, 136, 19.65%) groups. For each group, the differences of clinical data and PE locations were compared, and the risk factors of PE secondary to DVT were analyzed. The predictive value of the scoring system for the diagnosis of PE and FPE was evaluated.
Results:
PE presented more in the bilateral pulmonary arteries (PAs) (249, 53.43%) and has no significant difference in PESI scores in different locations. Gender, DVT locations, and previous surgery were the independent risk factors of PE. DVT locations, previous history of COPD, and previous surgical interventions were the independent risk factors of FPE. The results for areas under the ROC curves were: AUC(Wells) = 0.675, AUC (Revised Geneva) = 0.601, AUC(D-dimer) = 0.595 in the PE group; AUC(Wells) = 0.722, AUC (Revised Geneva) = 0.643, AUC(D-dimer) = 0.557 in the FPE group.
Conclusions:
PE secondary to DVT mostly occurs in the bilateral PAs. Male gender, DVT locations, and previous surgery increased the risk of PE. The Wells scoring system was more advantageous for evaluating the diagnosis of PE in patients with DVT.
Related Concept Videos
Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies
Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care
Pulmonary Embolism I: Introduction
Venous Thrombosis I: Introduction
Pulmonary Embolism III: Nursing Management
Venous Thrombosis III: Interprofessional Care

