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Benzerdjeb N, Durieux E, Tantot J, Isaac S, Fontaine J, Harou O, Glehen O, Kepenekian V, Alyami M, Villeneuve L, Laplace N, Traverse-Glehen A, Shisheboran-Devouassoux M, Bakrin N. Prognostic impact of combined progression index based on peritoneal grading regression score and peritoneal cytology in peritoneal metastasis. Histopathology 2020; 77:548-559. [PMID: 32060943 DOI: 10.1111/his.14092] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 02/10/2020] [Accepted: 02/11/2020] [Indexed: 12/22/2022]
Abstract
AIMS The peritoneal regression grading score (PRGS) and peritoneal cytology (PC) assess response to chemotherapy in peritoneal metastasis (PM) in a setting of palliative treatment by pressurized intraperitoneal aerosol chemotherapy (PIPAC). Progression has been defined as an increase of PRGS between first and third PIPAC procedures (iPRGS). iPRGSand positive peritoneal cytology were not associated with prognostic impact. These results may be explained by a lack of statistical power. Also, it is not known whether the mean or the highest PRGS among taken peritoneal biopsies bears the highest clinical value. We therefore conducted the largest prospective study to investigate the prognostic impact of PGRS, PC, and their combination, designated as combined progression index (CPI). METHODS AND RESULTS Patients with PM who underwent >3 PIPAC (n = 112) between December 2016 and February 2019 were prospectively included. A significant difference in OS and PFS according to CPI (used highest value of PRGS) was found (OS: CPI-, 83.3, 95% CI [49.8; NA] vs. CPI+, 48.1, 95% CI [38.5; 66.4] months; and PFS (respectively, 59.7, 95% CI [43.0; 96.0] vs. 33.7, 95% CI [30.4; 44.2] months). PRGS or PC had no independent prognostic impact. CPI+ was an independent predictor of worse prognosis, in OS (HR = 5.24, 95% CI [2.07; 13.26]), and PFS (HR = 4.41, 95% CI [1.40; 13.88]). CONCLUSIONS The CPI based on highest PRGS and PC was found to be independently associated with a worse prognosis for OS and for PFS in the setting of peritoneal metastasis. These results indicate that it should be of interest to systematically take peritoneal fluid for cytological examination and to implement the CPI in the therapeutic decision-making process in the context of PIPAC.
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Affiliation(s)
- Nazim Benzerdjeb
- Laboratoire d'Anatomie et Cytologie Pathologiques, Institut de Pathologie Multisite, Centre de Biologie Sud, Centre Hospitalier Sud, Hospices Civils de Lyon, Pierre-Bénite, France.,EMR 3738, Université Lyon 1, Lyon, France
| | - Emeline Durieux
- Laboratoire d'Anatomie et Cytologie Pathologiques, Institut de Pathologie Multisite, Centre de Biologie Sud, Centre Hospitalier Sud, Hospices Civils de Lyon, Pierre-Bénite, France
| | - Juliet Tantot
- Laboratoire d'Anatomie et Cytologie Pathologiques, Institut de Pathologie Multisite, Centre de Biologie Sud, Centre Hospitalier Sud, Hospices Civils de Lyon, Pierre-Bénite, France
| | - Sylvie Isaac
- Laboratoire d'Anatomie et Cytologie Pathologiques, Institut de Pathologie Multisite, Centre de Biologie Sud, Centre Hospitalier Sud, Hospices Civils de Lyon, Pierre-Bénite, France
| | - Juliette Fontaine
- Laboratoire d'Anatomie et Cytologie Pathologiques, Institut de Pathologie Multisite, Centre de Biologie Sud, Centre Hospitalier Sud, Hospices Civils de Lyon, Pierre-Bénite, France
| | - Olivier Harou
- Laboratoire d'Anatomie et Cytologie Pathologiques, Institut de Pathologie Multisite, Centre de Biologie Sud, Centre Hospitalier Sud, Hospices Civils de Lyon, Pierre-Bénite, France
| | - Olivier Glehen
- EMR 3738, Université Lyon 1, Lyon, France.,Département de Chirurgie Digestive et Endocrinienne, Centre Hospitalier Lyon-Sud, Hospices Civils de Lyon, Pierre-Bénite, France
| | - Vahan Kepenekian
- EMR 3738, Université Lyon 1, Lyon, France.,Département de Chirurgie Digestive et Endocrinienne, Centre Hospitalier Lyon-Sud, Hospices Civils de Lyon, Pierre-Bénite, France
| | - Mohammad Alyami
- King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Laurent Villeneuve
- EMR 3738, Université Lyon 1, Lyon, France.,Service d'Epidémiologie et de Recherche Cliniques, Pôle de Santé Publique, Hospices Civils de Lyon, Lyon, France
| | - Nathalie Laplace
- EMR 3738, Université Lyon 1, Lyon, France.,Département de Chirurgie Digestive et Endocrinienne, Centre Hospitalier Lyon-Sud, Hospices Civils de Lyon, Pierre-Bénite, France
| | - Alexandra Traverse-Glehen
- Laboratoire d'Anatomie et Cytologie Pathologiques, Institut de Pathologie Multisite, Centre de Biologie Sud, Centre Hospitalier Sud, Hospices Civils de Lyon, Pierre-Bénite, France.,INSERM 1052, CNRS 5286, Lyon-Sud Charles Mérieux Lyon-1 Faculty, Université Lyon 1, Lyon, France
| | - Mojgan Shisheboran-Devouassoux
- Laboratoire d'Anatomie et Cytologie Pathologiques, Institut de Pathologie Multisite, Centre de Biologie Sud, Centre Hospitalier Sud, Hospices Civils de Lyon, Pierre-Bénite, France.,INSERM 1052, CNRS 5286 Cancer Research Center of Lyon, Equipe labellisée Ligue contre le Cancer, Université Lyon 1, Lyon, France
| | - Naoual Bakrin
- EMR 3738, Université Lyon 1, Lyon, France.,Département de Chirurgie Digestive et Endocrinienne, Centre Hospitalier Lyon-Sud, Hospices Civils de Lyon, Pierre-Bénite, France
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Solass W, Sempoux C, Carr NJ, Bibeau F, Neureiter D, Jäger T, Di Caterino T, Brunel C, Klieser E, Fristrup CW, Mortensen MB, Detlefsen S. Reproducibility of the peritoneal regression grading score for assessment of response to therapy in peritoneal metastasis. Histopathology 2019; 74:1014-1024. [PMID: 30687944 DOI: 10.1111/his.13829] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Accepted: 01/23/2019] [Indexed: 12/11/2022]
Abstract
AIMS The four-tiered peritoneal regression grading score (PRGS) assesses the response to chemotherapy in peritoneal metastasis (PM). The PRGS is used, for example, to assess the response to pressurised intraperitoneal aerosol chemotherapy (PIPAC). However, the reproducibility of the PRGS is currently unknown. We aimed to evaluate the inter- and intraobserver variability of the PRGS. METHODS AND RESULTS Thirty-three patients who underwent at least three PIPAC treatments as part of the PIPAC-OPC1 or PIPAC-OPC2 clinical trials at Odense University Hospital, Denmark, were included. Prior to each therapy cycle, peritoneal quadrant biopsies were obtained and three haematoxylin and eosin (H&E)-stained step sections were scanned and uploaded to a pseudonymised web library. For determining interobserver variability, eight pathologists assessed the PRGS for each quadrant biopsy, and Krippendorff's alpha and intraclass correlation coefficients (ICCs) were calculated. For determining intraobserver variability, three pathologists repeated their own assessments and Cohen's kappa and ICCs were calculated. A total of 331 peritoneal biopsies were analysed. Interobserver variability for PRGS of each biopsy and for the mean and maximum PRGS per biopsy set was moderate to good/substantial. The intraobserver variability for PRGS of each biopsy and for the mean and maximum PRGS per biopsy set was good to excellent/almost perfect. CONCLUSIONS Our data support the PRGS as a reproducible and useful tool to assess response to intraperitoneal chemotherapy in PM. Future studies should evaluate the prognostic and predictive role of the PRGS.
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Affiliation(s)
- Wiebke Solass
- Institute of Pathology and Neuropathology, Eberhard-Karls-University Tuebingen and National Center for Pleura and Peritoneum, University of Tuebingen, Tuebingen, Germany
| | - Christine Sempoux
- Service of Clinical Pathology, Institute of Pathology, Lausanne University Hospital, Lausanne, Switzerland
| | - Norman J Carr
- Peritoneal Malignancy Institute, Basingstoke and North Hampshire Hospital, Basingstoke, UK
| | - Frederic Bibeau
- Institute of Pathology, University Caen and Réseau National des Tumeurs Rares du Péritoine (RENAPE), Caen, France
| | - Daniel Neureiter
- Institute of Pathology, Paracelsus Medical University, Salzburger Landeskliniken (SALK), Salzburg, Austria
| | - Tarkan Jäger
- Department of Surgery, Paracelsus Medical University, Salzburg, Austria
| | - Tina Di Caterino
- Department of Pathology, Odense University Hospital, Odense, Denmark
| | - Christophe Brunel
- Service of Clinical Pathology, Institute of Pathology, Lausanne University Hospital, Lausanne, Switzerland
| | - Eckhard Klieser
- Institute of Pathology, Paracelsus Medical University, Salzburger Landeskliniken (SALK), Salzburg, Austria
| | - Claus W Fristrup
- Odense PIPAC Center (OPC) and Odense Pancreas Center (OPAC), Odense University Hospital, Odense, Denmark.,Department of Surgery, HPB and Upper GI Section, Odense University Hospital, Odense, Denmark
| | - Michael B Mortensen
- Odense PIPAC Center (OPC) and Odense Pancreas Center (OPAC), Odense University Hospital, Odense, Denmark.,Department of Surgery, HPB and Upper GI Section, Odense University Hospital, Odense, Denmark.,Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Sönke Detlefsen
- Department of Pathology, Odense University Hospital, Odense, Denmark.,Odense PIPAC Center (OPC) and Odense Pancreas Center (OPAC), Odense University Hospital, Odense, Denmark.,Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
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