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Guillaume Piessen

Institut Paoli-Calmettes · FR
Area of research
Surgery · Pulmonary and Respiratory Medicine
Research interest
Research interests include Esophageal Cancer Research and Treatment, Gastric Cancer Management and Outcomes, Esophageal and GI Pathology, and Gastrointestinal Tumor Research and Treatment.
h-index
56
citations
15,522
works
481
NIH funding
primary concept
Medicine
email

Recent publications

Influence of Time Interval Between the 2 Stages of Delayed Coloanal Anastomosis on the Risk of Anastomotic Leakage: Multicenter Study From the GRECCAR Group.
2026cited by 0position: contributordoi
Efficacy of Perioperative Pembrolizumab in Mismatch Repair Deficient/Microsatellite Unstable Localized Colorectal Cancers: Results of the Phase II Trial IMHOTEP.
2026cited by 0position: contributordoi
Conditional recurrence-free survival after curative esophagectomy: individual patient data analysis of 11 trials.
2026cited by 0position: contributordoi
Regional characteristics of esophageal cancer and robot-assisted minimally invasive esophagectomy (RAMIE): an analysis of the international UGIRA registry.
2026cited by 0position: contributordoi
Survival after pathological complete response following neoadjuvant chemotherapy versus chemoradiotherapy for oesophageal squamous cell carcinoma.
2026cited by 0position: contributordoi
​​A Preoperative High-Dose of Corticosteroids in Digestive Cancer Surgery (CORTIFRENCH): A Randomized Double-Blind Placebo-Controlled Trial (FRENCH 14)
2026cited by 0position: contributordoi
Surgery for Colorectal Peritoneal Metastases in non-expert centers is strongly associated with tumor persistence or early recurrence: a bicentric study of 106 patients.
2026cited by 0position: contributordoi
Hepatectomy for oligometastatic liver disease in oesophageal adenocarcinoma: The METHEOR study
European Journal of Surgical Oncology 2026cited by 0position: contributordoi
Feasibility of ERAS guidelines for cytoreductive surgery with or without hyperthermic intraperitoneal chemotherapy (CRS-HIPEC): An international multicenter study
European Journal of Surgical Oncology 2026cited by 0position: contributordoi
Neoadjuvant FOLF(IRIN)OX Chemotherapy for Resectable Pancreatic Adenocarcinoma: A Multicenter Randomized Noncomparative Phase II Trial (PANACHE01 FRENCH08 PRODIGE48 study)
Journal of Clinical Oncology 2025cited by 22position: middledoi
EORTC-1203 GITC "INNOVATION": Integration of trastuzumab (T), with or without pertuzumab (P), into perioperative chemotherapy of HER-2 positive stomach cancer: Overall survival results.
Journal of Clinical Oncology 2025cited by 14position: middledoi
Evaluation of pathological complete response as a surrogate endpoint for overall survival in resectable oesophageal cancer: integrated analysis of individual patient data from phase III trials
British journal of surgery 2025cited by 10position: middledoi
Hyperthermic intraperitoneal chemotherapy (HIPEC) for gastric cancer with peritoneal metastasis - Joint analysis of European GASTRODATA and American national cancer database
The American Journal of Surgery 2025cited by 8position: contributordoi
Neoadjuvant CTLA-4/PD-(L)1 Blockade Versus Surgery +/− Chemotherapy in Deficient Mismatch Repair/Microsatellite Instability–High Resectable Gastroesophageal Adenocarcinoma: Individual Patient Data Pooled Analysis
Journal of Clinical Oncology 2025cited by 7position: middledoi
Anastomotic leakage following robot-assisted minimally invasive esophagectomy (RAMIE): which anastomosis should be preferred?
Surgical Endoscopy 2025cited by 4position: middledoi
Prognostic impact of positive peritoneal cytology (POPEC) in gastric cancer: Multi-centre European retrospective cohort study
Surgical Oncology Insight 2025cited by 3position: middledoi
Neoadjuvant CTLA-4/PD-(L)1 Blockade Versus Surgery +/- Chemotherapy in Deficient Mismatch Repair/Microsatellite Instability-High Resectable Gastroesophageal Adenocarcinoma: Individual Patient Data Pooled Analysis.
2025cited by 2position: contributordoi
Perioperative Outcomes in Open Versus Minimally Invasive Gastrectomy For Gastric Cancer
Annals of Surgery 2025cited by 1position: middledoi
Perioperative Outcomes in Open Versus Minimally Invasive Gastrectomy For Gastric Cancer: A European Multicenter Study Based on the GASTRODATA Registry.
2025cited by 1position: contributordoi
Transforming Esogastric Cancer Surgery Integrating SpiderMass Mass Spectrometry with Clinical and Microbiome Data for Margin Delineation and Prognosis
2025cited by 0position: contributordoi
Immunonutrition to improve the quality of life of upper gastrointestinal cancer patients undergoing neoadjuvant treatment prior to surgery (NEOIMMUNE): double-blind randomized controlled multicenter clinical trial.
2025cited by 0position: contributordoi
Benefit of splenectomy in distal pancreatectomy for neuroendocrine tumours: multicentre retrospective study.
2025cited by 0position: contributordoi
Exome sequencing points to pathogenic ATM variants in gastric cancer.
2025cited by 0position: contributordoi
Molecular analysis in pancreatic adenocarcinoma: a real-world study from high-volume French centres (CAPANCOBIO study)
ESMO Gastrointestinal Oncology 2025cited by 0position: contributordoi
European clinical practice guidelines for the definition, diagnosis, and treatment of oligometastatic esophagogastric cancer (OMEC-4)
European Journal of Cancer 2024cited by 50position: middledoi
The Current State of Robot-Assisted Minimally Invasive Esophagectomy (RAMIE): Outcomes from the Upper GI International Robotic Association (UGIRA) Esophageal Registry
Annals of Surgical Oncology 2024cited by 23position: middledoi
Management and outcomes of hemorrhage after distal pancreatectomy: a multicenter study at high volume centers
HPB 2024cited by 11position: contributordoi
Western European Variation in the Organization of Esophageal Cancer Surgical Care
Diseases of the Esophagus 2024cited by 8position: middledoi
Prognostic impact of positive microscopic margins (R1 resection) in patients with GIST (gastrointestinal stromal tumours): Results of a multicenter European study
European Journal of Surgical Oncology 2024cited by 6position: contributordoi
Minimally invasive versus open distal pancreatectomy for resectable pancreatic neuroendocrine tumors: A propensity score matched multicentric comparative French study
Surgery 2024cited by 5position: contributordoi

Grants

No grants ingested yet.

Frequent collaborators

· 41 papers (2019–2026)Markus Moehler · Seoul National University Hospital7 papers (2020–2025)Magnus Nilsson · University Hospitals Birmingham NHS Foundation Trust7 papers (2021–2026)Peter Thuss‐Patience · Universität Hamburg6 papers (2023–2026)Stephanie Truant · Centre Oscar Lambret6 papers (2020–2024)David Tougeron · Université de Poitiers6 papers (2023–2026)Sheraz R. Markar · Harvard University5 papers (2019–2024)Olivier Gléhen · Hospices Civils de Lyon5 papers (2019–2026)Suzanne S. Gisbertz · University Hospital Cologne5 papers (2023–2025)Jaffer A. Ajani · The University of Texas MD Anderson Cancer Center5 papers (2020–2023)Florian Lordick · Leipzig University5 papers (2019–2025)Eric Van Cutsem · KU Leuven5 papers (2019–2023) · 4 papers (2019–2021)Heike I. Grabsch · Maastricht University4 papers (2019–2025)Karen Geboes · Universitair Ziekenhuis Brussel4 papers (2020–2023)Peter Grimminger · Johannes Gutenberg University Mainz4 papers (2021–2024)Guillermo Méndez · Fundacion Favaloro Hospital Universitario4 papers (2020–2023)Bernard Meunier · Guangdong University of Technology4 papers (2019–2021)Richard van Hillegersberg · Collaborative Group (United States)4 papers (2021–2026)Cecile Grootscholten · Association of British Orchestras4 papers (2020–2023)