Linear endovenous energy density (LEED) should always be quoted with the power used in endovenous thermal ablation - results from an in-vitro porcine liver model study.
Amanda G Nielsen, Alexandra A Croucher, Simon D Muschamp, Ethan Losty, Thomas Worthington, Melissa J Kiely, Mark S Whiteley
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Abstract
Background: Linear Endovenous Energy Density (LEED) is the energy used per cm of vein in endovenous thermal ablation (EVTA) but does not include time. This study examines the effect of time during EVTA.
Method: EVTA was performed in a previously validated porcine liver model. LEEDs of 40, 60, 80 and 100 J/cm, using different powers were repeated 5 times each. Thermal spread, tissue carbonisation and device-tissue sticking during treatment were recorded.
Result: LEED positively correlated to thermal spread and carbonisation of the tissue. Power was correlated with carbonisation but not thermal spread. Pullback had no correlations with thermal spread or carbonisation. Catheter sticking found occurred in powers >= 15 W or LEED >= 80 J/cm.
Conclusion: LEED is a good measure of EVTA but does not include time. Power, which does include time, correlates with carbonisation and with device-tissue sticking. The power used must be quoted with the LEED.
期刊介绍：
The leading scientific journal devoted entirely to venous disease, Phlebology is the official journal of several international societies devoted to the subject. It publishes the results of high quality studies and reviews on any factor that may influence the outcome of patients with venous disease. This journal provides authoritative information about all aspects of diseases of the veins including up to the minute reviews, original articles, and short reports on the latest treatment procedures and patient outcomes to help medical practitioners, allied health professionals and scientists stay up-to-date on developments.
Print ISSN: 0268-3555
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