Understanding surgical smoke in laparoscopy through Lagrangian Coherent Structures.

Autor: Kumar S; Department of Quantitative Methods, CUNEF Universidad, Madrid, Spain., Crowley C; School of Mechanical and Material Engineering, University College Dublin, Dublin, Ireland., Khan MF; UCD Centre of Precision Surgery, School of Medicine, University College Dublin, Dublin, Ireland., Bustamante MD; School of Mathematics and Statistics, University College Dublin, Dublin, Ireland., Cahill RA; UCD Centre of Precision Surgery, School of Medicine, University College Dublin, Dublin, Ireland.; Department of Surgery, Mater Misericordiae University Hospital, Dublin, Ireland., Nolan K; School of Mechanical and Material Engineering, University College Dublin, Dublin, Ireland.
Jazyk: angličtina
Zdroj: PloS one [PLoS One] 2023 Nov 14; Vol. 18 (11), pp. e0293287. Date of Electronic Publication: 2023 Nov 14 (Print Publication: 2023).
DOI: 10.1371/journal.pone.0293287
Abstrakt: In laparoscopic surgery, one of the main byproducts is the gaseous particles, called surgical smoke, which is found hazardous for both the patient and the operating room staff due to their chemical composition, and this implies a need for its effective elimination. The dynamics of surgical smoke are monitored by the underlying flow inside the abdomen and the hidden Lagrangian Coherent Structures (LCSs) present therein. In this article, for an insufflated abdomen domain, we analyse the velocity field, obtained from a computational fluid dynamics model, first, by calculating the flow rates for the outlets and then by identifying the patterns which are responsible for the transportation, mixing and accumulation of the material particles in the flow. From the finite time Lyapunov exponent (FTLE) field calculated for different cross-sections of the domain, we show that these material curves are dependent on the angle, positions and number of the outlets, and the inlet. The ridges of the backward FTLE field reveal the regions of vortex formation, and the maximum accumulation, details which can inform the effective placement of the instruments for efficient removal of the surgical smoke.
Competing Interests: The authors have declared that no competing interests exist.
(Copyright: © 2023 Kumar et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
Databáze: MEDLINE
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