Ultrasound-Guided Central Venous Catheterization in Coagulopathic Critically Ill Patients

Abstract

Introduction: Central venous catheterization in coagulopathic patients carries increased bleeding risk. This review examines whether ultrasound guidance reduces mechanical complications and bleeding events compared to landmark techniques in this population.

Methods: Literature review of observational studies and randomized trials comparing real-time ultrasound-guided versus landmark-based internal jugular or femoral vein catheterization in adult ICU patients with coagulopathy (international normalized ratio >1.5 or platelet count <50,000/μL). Primary outcomes were arterial puncture and hematoma formation. Secondary outcome was hemothorax.

Results: Six studies (1,452 patients) met inclusion. Ultrasound guidance reduced arterial puncture incidence from 9.8% to 2.1% and hematoma formation from 14.2% to 3.4%. No hemothorax events occurred in the ultrasound group compared to 0.7% in the landmark group. First-attempt success rate increased from 64% to 89% with ultrasound. Procedure time was shorter in the ultrasound group despite accounting for equipment setup.

Discussion: Real-time visualization of needle trajectory and adjacent structures is particularly beneficial when anatomical landmarks are obscured by obesity or edema and when coagulopathy lowers the complication threshold. Most included studies used a single operator experienced in both techniques, which may not reflect general clinical practice. The femoral site had lower bleeding risk regardless of guidance method.

Conclusions: Ultrasound guidance significantly reduces mechanical complications during central venous catheterization in coagulopathic ICU patients. Routine use should be standard practice in this high-risk population.