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Microembolization during endovascular and conventional aneurysm repair
M M Thompson1, J Smith, A R Naylor
1Department of Surgery, University of Leicester, United Kingdom.
Journal of Vascular Surgery
|January 1, 1997
Summary
Endovascular aneurysm repair causes significantly more peripheral microembolization than conventional surgery. Further research is needed to develop methods reducing emboli during endovascular aortic repair.
Area of Science:
- Vascular Surgery
- Medical Device Technology
- Biomedical Engineering
Background:
- Endovascular aneurysm repair (EVAR) is promoted as a less invasive surgical option.
- EVAR involves manipulating devices within the aneurysm sac, potentially causing microembolization.
Purpose of the Study:
- To quantify and compare lower limb microemboli during EVAR versus conventional aneurysm surgery.
- To assess the impact of EVAR on peripheral embolization.
Main Methods:
- Doppler ultrasound of the superficial femoral artery was used to detect and quantify microemboli in 29 patients.
- Patients underwent either conventional (n=18) or endovascular (n=11) aneurysm repair.
- Emboli were classified as gaseous or particulate based on sample volume length calculations.
Main Results:
- The number of gaseous, particulate, and total microemboli was significantly higher in the endovascular group compared to the conventional group (p < 0.05).
- A total of 4927 emboli were analyzed.
Conclusions:
- Peripheral microembolization is significantly increased during EVAR compared to conventional surgery.
- Developing strategies to mitigate microembolization is crucial for the widespread adoption of EVAR.