tumour grade and complete tumour removal affects survival after … · 2015-11-18 · pmi...
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![Page 1: Tumour grade and complete tumour removal affects survival after … · 2015-11-18 · PMI Basingstoke Basingstoke and North Hampshire Hospital Working in partnership with: Aldermaston](https://reader034.vdocuments.mx/reader034/viewer/2022042206/5ea82b98b7dc541068351022/html5/thumbnails/1.jpg)
Working in partnership with: PMI Basingstoke Basingstoke and North Hampshire Hospital
Aldermaston Road, Basingstoke, Hampshire RG24 9NA
www.pmibasingstoke.com
Tumour grade and complete tumour removal affects survival
after cytoreductive surgery and HIPEC for Pseudomyxoma
Peritonei (PMP) of appendiceal origin.
A. Gupta, K. Chandrakumaran, T.D.Cecil, F.Mohamed, B.J. Moran
Ashish Gupta
![Page 2: Tumour grade and complete tumour removal affects survival after … · 2015-11-18 · PMI Basingstoke Basingstoke and North Hampshire Hospital Working in partnership with: Aldermaston](https://reader034.vdocuments.mx/reader034/viewer/2022042206/5ea82b98b7dc541068351022/html5/thumbnails/2.jpg)
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Introduction
• PMP
• Mucinous ascites • Abdominal distension
• Origin – Appendix in ~ 90% cases • Majority (~80%) are low grade
• Blood borne and lymph node metastasis is unusual
• Chemotherapy has no established role in low grade PMP
![Page 3: Tumour grade and complete tumour removal affects survival after … · 2015-11-18 · PMI Basingstoke Basingstoke and North Hampshire Hospital Working in partnership with: Aldermaston](https://reader034.vdocuments.mx/reader034/viewer/2022042206/5ea82b98b7dc541068351022/html5/thumbnails/3.jpg)
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Classification
• Diverse nomenclature of PMP
• Low grade appendicular mucinous neoplasm (LAMN)
• Mucinous adenocarcinomas (MACA)
• Disseminated peritoneal adenomucinosis (DPAM)
• Peritoneal mucinous carcinomatosis (PMCA)
• WHO classification of PMP (2010)
• Low Grade
• High Grade
![Page 4: Tumour grade and complete tumour removal affects survival after … · 2015-11-18 · PMI Basingstoke Basingstoke and North Hampshire Hospital Working in partnership with: Aldermaston](https://reader034.vdocuments.mx/reader034/viewer/2022042206/5ea82b98b7dc541068351022/html5/thumbnails/4.jpg)
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Low grade - jelly
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High Grade
• Small Bowel involvement
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Surgery
• Complete Cytoreductive Surgery (CCRS) with Hyperthermic intraperitoneal chemotherapy (HIPEC) is optimal treatment for PMP (Sugarbaker technique)
• Maximal tumour debulking (MTD) is helpful in selected patients when complete tumour removal is unachievable.
![Page 7: Tumour grade and complete tumour removal affects survival after … · 2015-11-18 · PMI Basingstoke Basingstoke and North Hampshire Hospital Working in partnership with: Aldermaston](https://reader034.vdocuments.mx/reader034/viewer/2022042206/5ea82b98b7dc541068351022/html5/thumbnails/7.jpg)
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Low grade
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Aim
• Analyse the outcomes following CCRS and HIPEC or MTD for appendiceal tumours based on tumour grade.
![Page 9: Tumour grade and complete tumour removal affects survival after … · 2015-11-18 · PMI Basingstoke Basingstoke and North Hampshire Hospital Working in partnership with: Aldermaston](https://reader034.vdocuments.mx/reader034/viewer/2022042206/5ea82b98b7dc541068351022/html5/thumbnails/9.jpg)
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Methods
• 791 consecutive patients - prospective database.
• Surgery at a National PMP Centre in the UK at Basingstoke
• March 1994 and December 2012 .
• Appendix tumour graded as Low Grade (LG) or High Grade (HG). (WHO classification)
• Treatment was classified as CCRS or MTD
• 5-year Overall Survival (OS) and Disease-Free Interval (DFI) calculated
![Page 10: Tumour grade and complete tumour removal affects survival after … · 2015-11-18 · PMI Basingstoke Basingstoke and North Hampshire Hospital Working in partnership with: Aldermaston](https://reader034.vdocuments.mx/reader034/viewer/2022042206/5ea82b98b7dc541068351022/html5/thumbnails/10.jpg)
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Results
• Surgery Performed • Grade of tumour
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Results
• Females: 499 (61.5%) • Age: Median 57 years (20 – 84) • FU: Median 27 months (6 – 180)
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5 year overall survival and disease free
interval
• 5 yr OS • 5 yr DFI
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Kaplan – Meier plots Overall Survival - CCR
Complete Cytoreduction
(n=571)
P=0.001
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Kaplan – Meier plots Overall Survival - MTD
P=0.001
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Kaplan – Meier plots DFI
Complete Cytoreduction
(n=571)
P=0.001
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Hazard Ratio
• HR (OS)
• CCR 2.2 (95% CI: 1.3 - 3.8)
• MTD 2.7 (95% CI: 1.9 - 3.9) • HR (DFS)
• CCR 2.4 (95% CI: 1.7 - 3.6)
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Conclusion
• Complete cytoreductive surgery and HIPEC achieves 83% five year overall survival if tumour is LG and 68% if tumour is HG.(optimal cytoreduction achieves the best result)
• Where CCRS is not achievable patients with HG tumours have a poor prognosis.
• Careful selection of patients with high grade appendiceal pathology is required to maximize outcomes
• Additional strategies including systemic chemotherapy may be required for HG tumours .
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Questions?