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Related Experiment Video

Updated: Sep 2, 2025

Author Spotlight: Advancing Spectral Characterization of Physiological and Malperfused Tissues
04:57

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545

Microvascular tissue perfusion after postcatheterization pseudoaneurysm treatment.

M Stern1, J Schremmer1, S Scharm1

  • 1Department of Cardiology, Pulmonology, and Vascular Medicine, University Duesseldorf, Medical Faculty, Duesseldorf, Germany.

Clinical Hemorheology and Microcirculation
|August 8, 2022
PubMed
Summary
This summary is machine-generated.

Thrombin injection effectively treats femoral pseudoaneurysms (PSAs) without impairing leg tissue perfusion. This study found no significant difference in microvascular or macrovascular blood flow after treatment, highlighting the safety of thrombin injection for PSAs.

Keywords:
Microcirculationfemoral pseudoaneurysmnear-infrared spectroscopytissue perfusionultrasound-guided manual compressionultrasound-guided percutaneous thrombin injection

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Area of Science:

  • Vascular Surgery
  • Interventional Radiology
  • Cardiovascular Medicine

Background:

  • Femoral pseudoaneurysm (PSA) is a serious complication following endovascular procedures.
  • Ultrasound-guided manual compression (MC) and percutaneous thrombin injection (TI) are common treatments.
  • MC has lower efficacy, while TI carries a risk of thromboembolic events.

Purpose of the Study:

  • To investigate microvascular tissue perfusion changes after femoral pseudoaneurysm treatment.
  • To compare macro- and microcirculatory perfusion in treated versus untreated legs.
  • To assess the safety of thrombin injection and manual compression for PSA.

Main Methods:

  • Prospective, single-center study of 22 patients with femoral pseudoaneurysms.
  • Macrovascular perfusion assessed via ultrasound and ankle-brachial index (ABI).
  • Microvascular foot perfusion measured using near-infrared spectroscopy (NIRS) StO2-tissue-maps.

Main Results:

  • Successful PSA thrombosis achieved in 100% of TI patients and 66.7% of MC patients.
  • No arterial thrombi detected on ultrasound; ABI showed no significant group differences.
  • NIRS revealed no significant difference in foot tissue oxygenation (StO2) in treated or untreated legs.

Conclusions:

  • Thrombin injection demonstrated high efficacy in treating femoral pseudoaneurysms.
  • No evidence of impaired micro- or macrovascular tissue perfusion post-treatment.
  • This exploratory study supports the safety of thrombin injection for post-catheterization femoral pseudoaneurysms.