Related Experiment Video
Updated: Mar 26, 2026

Point-Of-Care Ultrasound Screening for Proximal Lower Extremity Deep Venous Thrombosis
Published on: February 10, 2023
Venous thromboembolism occurring during adolescence.
Tina Biss1, Raza Alikhan2, Jeanette Payne3
1Department of Haematology, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK.
Venous thromboembolism (VTE) risk assessment in adolescents is understudied. A small percentage of VTE cases in this age group had an indication for chemical thromboprophylaxis but did not receive it.
Area of Science:
- Pediatric Thrombosis
- Vascular Medicine
- Adolescent Health
Background:
- Venous thromboembolism (VTE) risk assessment and thromboprophylaxis are standard in adults but lack adolescent-specific evidence.
- Adolescents with VTE often present with complex risk factors and require tailored prevention strategies.
Purpose of the Study:
- To describe thrombotic risk factors in adolescents with VTE.
- To determine the proportion of potentially preventable VTE events in this population.
Main Methods:
- Retrospective cohort study of 76 adolescents (aged 12-17) with radiologically confirmed VTE.
- Data collected from eight UK tertiary centers between 2008 and 2014.
- Exclusion of central venous line-related upper venous system events.
Main Results:
- Frequent risk factors included reduced mobility (45%), thrombophilia (24%), and malignancy (20%).
- 37% of cases were considered 'unpreventable' as outpatients without provoking events.
- 18% had an indication for thromboprophylaxis without contraindication; only 4 received it.
Conclusions:
- A small proportion (13%) of adolescent VTE cases had an indication for chemical thromboprophylaxis but did not receive it.
- Focus VTE risk assessment on adolescents with immobility or surgery, especially those with malignancy.
Related Concept Videos
Venous Thrombosis I: Introduction
Venous Thrombosis III: Interprofessional Care
Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies
Venous Thrombosis IV: Nursing Management
Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care
Pulmonary Embolism I: Introduction

