Measuring thermal spread during bipolar cauterizing using an experimental pneumoperitoneum and thermal sensors

ObjectiveDuring nerve-sparing robot-assisted radical prostatectomy (RARP) bipolar electrocoagulation is often used but its use is controversial for the possible thermal damage of neurovascular bundles. Aim of the study was to evaluate the spatial-temporal thermal distribution in the tissue and the c...

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Main Authors: Salvatore Siracusano, Giacomo Marchioro, Dumitru Scutelnic, Matteo Brunelli, Renato Talamini, Antonio Benito Porcaro, Paolo Fiorini, Riccardo Muradore, Claudia Daffara
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-06-01
Series:Frontiers in Surgery
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fsurg.2023.1115570/full
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author Salvatore Siracusano
Giacomo Marchioro
Dumitru Scutelnic
Matteo Brunelli
Renato Talamini
Antonio Benito Porcaro
Paolo Fiorini
Riccardo Muradore
Claudia Daffara
author_facet Salvatore Siracusano
Giacomo Marchioro
Dumitru Scutelnic
Matteo Brunelli
Renato Talamini
Antonio Benito Porcaro
Paolo Fiorini
Riccardo Muradore
Claudia Daffara
author_sort Salvatore Siracusano
collection DOAJ
description ObjectiveDuring nerve-sparing robot-assisted radical prostatectomy (RARP) bipolar electrocoagulation is often used but its use is controversial for the possible thermal damage of neurovascular bundles. Aim of the study was to evaluate the spatial-temporal thermal distribution in the tissue and the correlation with the electrosurgery-induced tissue damage in a controlled, CO2-rich environment modelling the laparoscopy conditions..MethodsWe manufactured a sealed plexiglass chamber (SPC) equipped with sensors to reproduce experimentally the environmental conditions of pneumoperitoneum during RARP. We evaluated in 64 pig musculofascial tissues (PMTs) of approximately 3 cm3 × 3 cm3 × 2 cm3 the spatial-temporal thermal distribution in the tissue and the correlation with the electrosurgery-induced tissue damage in a controlled CO2-rich environment modeling the laparoscopy conditions. Critical heat spread of bipolar cauterizing during surgical procedure was assessed by the employment of a compact thermal camera (C2) with a small core sensor (60 × 80 microbolometer array in the range 7–14 μm).ResultsBipolar instruments used at 30 W showed a thermal spread area of 18 mm2 when applied for 2 s and 28 mm2 when applied for 4 s. At 60 W, bipolar instruments showed a mean thermal spread and 19 mm2 when applied for 2 s; and 21 mm2 when applied for 4 s. Finally, histopathological analysis showed that thermal damage is distributed predominantly on the surface rather than in depth.ConclusionsThe application of these results is very interesting for the definition of an accurate use of bipolar cautery during nerve-sparing RARP. It demonstrates the feasibility of using miniaturized thermal sensors, thus addressing the potential for next developments regarding the design of thermal endoscopic devices for robotic use.
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spelling doaj.art-5e44e6668c5c437ab5f5facb4b9784fb2023-06-13T04:23:42ZengFrontiers Media S.A.Frontiers in Surgery2296-875X2023-06-011010.3389/fsurg.2023.11155701115570Measuring thermal spread during bipolar cauterizing using an experimental pneumoperitoneum and thermal sensorsSalvatore Siracusano0Giacomo Marchioro1Dumitru Scutelnic2Matteo Brunelli3Renato Talamini4Antonio Benito Porcaro5Paolo Fiorini6Riccardo Muradore7Claudia Daffara8Department of Life, Health and Environmental Sciences, University of L’Aquila, L’Aquila, ItalyDepartment of Computer Science, University of Verona, Verona, ItalyDepartment of Computer Science, University of Verona, Verona, ItalyDepartment of Diagnostics and Public Health, University of Verona, Verona, ItalyConsultant Epidemiologist CRO Aviano, Aviano, ItalyDepartment of Urology, University of Verona, Verona, ItalyDepartment of Computer Science, University of Verona, Verona, ItalyDepartment of Computer Science, University of Verona, Verona, ItalyDepartment of Computer Science, University of Verona, Verona, ItalyObjectiveDuring nerve-sparing robot-assisted radical prostatectomy (RARP) bipolar electrocoagulation is often used but its use is controversial for the possible thermal damage of neurovascular bundles. Aim of the study was to evaluate the spatial-temporal thermal distribution in the tissue and the correlation with the electrosurgery-induced tissue damage in a controlled, CO2-rich environment modelling the laparoscopy conditions..MethodsWe manufactured a sealed plexiglass chamber (SPC) equipped with sensors to reproduce experimentally the environmental conditions of pneumoperitoneum during RARP. We evaluated in 64 pig musculofascial tissues (PMTs) of approximately 3 cm3 × 3 cm3 × 2 cm3 the spatial-temporal thermal distribution in the tissue and the correlation with the electrosurgery-induced tissue damage in a controlled CO2-rich environment modeling the laparoscopy conditions. Critical heat spread of bipolar cauterizing during surgical procedure was assessed by the employment of a compact thermal camera (C2) with a small core sensor (60 × 80 microbolometer array in the range 7–14 μm).ResultsBipolar instruments used at 30 W showed a thermal spread area of 18 mm2 when applied for 2 s and 28 mm2 when applied for 4 s. At 60 W, bipolar instruments showed a mean thermal spread and 19 mm2 when applied for 2 s; and 21 mm2 when applied for 4 s. Finally, histopathological analysis showed that thermal damage is distributed predominantly on the surface rather than in depth.ConclusionsThe application of these results is very interesting for the definition of an accurate use of bipolar cautery during nerve-sparing RARP. It demonstrates the feasibility of using miniaturized thermal sensors, thus addressing the potential for next developments regarding the design of thermal endoscopic devices for robotic use.https://www.frontiersin.org/articles/10.3389/fsurg.2023.1115570/fullexperimental pneumoperitoneumbipolar cauterizingthermal energy spreadinfrared endoscopic camerasealed plexiglass chamber
spellingShingle Salvatore Siracusano
Giacomo Marchioro
Dumitru Scutelnic
Matteo Brunelli
Renato Talamini
Antonio Benito Porcaro
Paolo Fiorini
Riccardo Muradore
Claudia Daffara
Measuring thermal spread during bipolar cauterizing using an experimental pneumoperitoneum and thermal sensors
Frontiers in Surgery
experimental pneumoperitoneum
bipolar cauterizing
thermal energy spread
infrared endoscopic camera
sealed plexiglass chamber
title Measuring thermal spread during bipolar cauterizing using an experimental pneumoperitoneum and thermal sensors
title_full Measuring thermal spread during bipolar cauterizing using an experimental pneumoperitoneum and thermal sensors
title_fullStr Measuring thermal spread during bipolar cauterizing using an experimental pneumoperitoneum and thermal sensors
title_full_unstemmed Measuring thermal spread during bipolar cauterizing using an experimental pneumoperitoneum and thermal sensors
title_short Measuring thermal spread during bipolar cauterizing using an experimental pneumoperitoneum and thermal sensors
title_sort measuring thermal spread during bipolar cauterizing using an experimental pneumoperitoneum and thermal sensors
topic experimental pneumoperitoneum
bipolar cauterizing
thermal energy spread
infrared endoscopic camera
sealed plexiglass chamber
url https://www.frontiersin.org/articles/10.3389/fsurg.2023.1115570/full
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