Peritonectomy procedures for peritoneal surface malignancies: PSOGI-ESGO-ISSPP Lyon consensus
Aditi Bhatt, Artem Stepanyan, Brendan Moran, Dennis Chi, Christina Fotopoulou, Joel Baumgartner, Naoual Bakrin, Marcello Deraco, Gwénaël Ferron, Vahan Képénékian, Shigeki Kusamura, Vincent Lavoué, Ahmed Al Niaimi, Álvaro Arjona‐Sánchez, Jalid Sehouli, Vivek Sukumar, Kiran K. Turaga, Laurent Villeneuve, François Planchamp, Ignacio Zapardiel, Donal J. Brennan, Olivier Gléhen, PSOGI-ESGO-ISSPP Collaborators, Alejandra Martínez, Alexander Heriot, Almog Ben‐Yaacov, Antonio Giorgio, Andreas Brandl, Andrew M. Lowy, Anna Fagotti, Antonio Gil‐Moreno, Armando Sardi, Avanish Saklani, Beate Rau, Brian D. Badgwell, Carlos Martínez-Gómez, Christoph Grimm, Claire Thompson, Claramae Shulyn Chia, Dan Grisaru, Dario Baratti, Delia Cortés‐Guiral, Desmond P.J. Barton, Dileep Damodaran, Dimitrios Haidopoulos, Dimitrios Tsolakidis, Edward A. Levine, Emel Canbay, Clarisse Eveno, Fabinshy Thangarajah, Faheez Mohamed, FCO Javier Santiago Garcia, Fernando Pereira, Fernando Pereira, Florian Heitz, Francesco Raspagliesi, Gabriel Glockzin, Giovanni Scambia, Diane Goèré, Frédéric Guyon, Henrik Falconer, Ignace De Hingh, Jacob Korach, Javier De Santiago, Jaydip Bhaumik, Jeremiah L. Deneve, Jesús Esquivel, Jula Veerapong, Jvan Casarin, Konstantinos I. Votanopoulos, Kurt Van der Speeten, Éric Lambaudie, Lana Bijelić, Laura Fekete, Laura Lambert, Fabrice Lécuru, Lucas Sidéris, Luis González Bayón, Mohsin Choudry, Maja Pakiž, Marcello Guagliò, Frédéric Marchal, Martin Hübner, Mehmet Ali Vardar, Michele De Simone, Mohammad Alyami, Mustafa Raoof, Nabila Ansari, Nayef Alzahrani, Nicoletta Colombo, Niels F.M. Kok, Oliver S. Eng, Oliver Zivanovic, Olivia Sgarbură, Paolo Sammartino, Paweł Knapp, Pedro Antonio Cascales Campos, Pedro Bretcha-Boix, Peter Cashin, Marc Pocard
Abstract
BACKGROUND: The nomenclature and execution of peritonectomy procedures for peritoneal surface malignancies significantly vary between surgeons and centres. The aim of this consensus was to reach uniform nomenclature for peritonectomy procedures, to define subregions of each peritonectomy procedure, and to define boundaries of each subregion. METHODS: The modified Delphi technique was employed. A group of experts elaborated on the initial classification of six peritonectomy procedures. They added newer and ancillary peritonectomy procedures and defined boundaries of each procedure. Then a panel of surgeons with expertise in cytoreductive surgery voted on questions in two rounds. Consensus was reached if an option received >75% of the votes. RESULTS: Of 112 surgeons invited, 107 (95.5%) and 101 (90.1%) voted in round I and round II respectively. Consensus was reached on 207 of 211 questions (98.1%), including all of the questions related to the subdivisions of peritonectomy procedures and the boundaries of each peritonectomy procedure. The four questions on which consensus was not reached were related to the 'most appropriate term' for specific peritonectomy procedures. A reporting form was devised to document the extent of peritonectomy. CONCLUSION: This consensus successfully devised a revised nomenclature for peritonectomy procedures. The reporting format is an important tool for research on the extent of peritoneal resection required for treatment of peritoneal surface malignancies.