Volume 27, Issue 7 e70158
ORIGINAL ARTICLE

Impact of preoperative radiotherapy on patient-reported outcomes in rectal cancer

Robert Siegel

Corresponding Author

Robert Siegel

Colorectal Cancer Center, Department of Surgery, Charité – Universitätsmedizin Berlin, Campus Virchow Klinikum and Campus Charité Mitte, Berlin, Germany

Correspondence

Robert Siegel, Division of Colorectal Surgery, Department of Surgery, Charité – Universitätsmedizin Berlin, Campus Virchow Klinikum, Augustenburger Platz 1, D-13353 Berlin, Germany.

Email: [email protected]

Contribution: Conceptualization, ​Investigation, Writing - original draft, Writing - review & editing, Validation, Supervision

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Nora Tabea Sibert

Nora Tabea Sibert

Department of Health Services Research, German Cancer Society, Berlin, Germany

Oncological Health Services Research, Department of Gynecology and Obstetrics, University Hospital Düsseldorf, Heinrich-Heine University Düsseldorf, Dusseldorf, Germany

Contribution: Conceptualization, Writing - original draft, Methodology, Validation, Writing - review & editing, Formal analysis, Supervision

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Clara Breidenbach

Clara Breidenbach

Department of Health Services Research, German Cancer Society, Berlin, Germany

Contribution: Writing - review & editing, Validation

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Cihan Gani

Cihan Gani

Department of Radiation Oncology, University Hospital Tübingen, Tübingen, Germany

Contribution: Writing - review & editing, Validation, Supervision

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Philipp Alexander Neumann

Philipp Alexander Neumann

Department of Surgery, School of Medicine, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany

Contribution: ​Investigation, Conceptualization, Writing - review & editing, Validation

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Stefan Rolf Benz

Stefan Rolf Benz

Department of Surgery, Sindelfingen-Böblingen Hospital, Böblingen, Germany

Contribution: Supervision, Validation, ​Investigation, Writing - review & editing

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Stefan Post

Stefan Post

Universitätsmedizin Mannheim, Mannheim, Germany

Contribution: ​Investigation, Validation, Writing - review & editing, Supervision

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Thomas Seufferlein

Thomas Seufferlein

Department of Internal Medicine I, University of Ulm, Ulm, Germany

Contribution: Supervision, Validation, Writing - review & editing, ​Investigation

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Vanessa Kolb

Vanessa Kolb

ClarData GmbH, Neu-Ulm, Germany

Contribution: Writing - review & editing, Software, Data curation

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Matthias Behrend

Matthias Behrend

Department of Visceral, Thoracic and Vascular Surgery, DONAUISAR Klinikum Deggendorf, Deggendorf, Germany

Contribution: Writing - review & editing, ​Investigation

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Richard David Blossey

Richard David Blossey

Allgemein-, Viszeral- und Onkologische Chirurgie und Koloproktologie, Vinzenkrankenhaus Hannover, Hanover, Germany

Contribution: Writing - review & editing, ​Investigation

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Jörg Bunse

Jörg Bunse

Department of General and Visceral Surgery, Sana Hospital Lichtenberg, Berlin, Germany

Contribution: Writing - review & editing, ​Investigation

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Marc Dahlke

Marc Dahlke

Department of Surgery, Robert-Bosch-Hospital, Stuttgart, Germany

Contribution: Writing - review & editing, ​Investigation

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Ricarda Diller

Ricarda Diller

Department of General and Visceral Surgery, Brüderkrankenhaus St. Josef Paderborn, Paderborn, Germany

Contribution: Writing - review & editing, ​Investigation

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Nikos Emmanouilidis

Nikos Emmanouilidis

General, Visceral, Thoracic and Minimalinvasive Surgery, St. Elisabeth Hospital Gütersloh, Gütersloh, Germany

Contribution: Writing - review & editing, ​Investigation

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Thomas J. Ettrich

Thomas J. Ettrich

Department of Internal Medicine I, University of Ulm, Ulm, Germany

Contribution: Writing - review & editing, ​Investigation

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Jörg Fahlke

Jörg Fahlke

General and Visceral Surgery, Johanniter Hospital Stendal, Stendal, Germany

Contribution: ​Investigation, Writing - review & editing

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Sven Flemming

Sven Flemming

Department of General, Visceral, Transplantation, Vascular and Paediatric Surgery, University Hospital Würzburg, Würzburg, Germany

Contribution: ​Investigation, Writing - review & editing

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Björn Freitag

Björn Freitag

Department of General and Visceral Surgery, St. Josef-Hospital, Bochum, Germany

Contribution: ​Investigation, Writing - review & editing

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Martin Fuchs

Martin Fuchs

Gastroenterology, Hepatology and Gastroenterological Oncology, München Klinik Bogenhausen, Munich, Germany

Contribution: ​Investigation, Writing - review & editing

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Lars Haeder

Lars Haeder

Department of General and Visceral Surgery, Diakovere Henriettenstift, Hannover, Hanover, Germany

Contribution: ​Investigation, Writing - review & editing

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Stephan Hollerbach

Stephan Hollerbach

Department of Gastroenterology, Allgemeines Krankenhaus Celle, Celle, Germany

Contribution: ​Investigation, Writing - review & editing

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Jens Höppner

Jens Höppner

Department of Surgery, University Medical Center OWL – Campus Hospital LippeUniversity of Bielefeld, Detmold, Germany

Contribution: ​Investigation, Writing - review & editing

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Mia Kim

Mia Kim

Clinic for Coloproctology, München Klinik Neuperlach, Munich, Germany

Contribution: ​Investigation, Writing - review & editing

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Christian Klink

Christian Klink

Department of General and Visceral Surgery, Diakonissen-Stiftungs-Krankenhaus Speyer, Speyer, Germany

Contribution: ​Investigation, Writing - review & editing

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Jürgen Knuth

Jürgen Knuth

Department of General, Visceral, Vascular and Thoracic Surgery, Hospital of Kempten, Kempten, Germany

Contribution: ​Investigation, Writing - review & editing

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Stefan Koeppen

Stefan Koeppen

Clinic for Gastroenterology and Oncology, Helios Klinikum Hildesheim, Hildesheim, Germany

Contribution: ​Investigation, Writing - review & editing

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Jörg Köninger

Jörg Köninger

Department of General, Visceral, Thorax and Transplantation Surgery, Klinikum Stuttgart, Katharinenhospital, Stuttgart, Germany

Contribution: ​Investigation, Writing - review & editing

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Ernst Wolfgang Kolbe

Ernst Wolfgang Kolbe

University Clinic of General, Abdominal and Thoracic Surgery, Hospital of Herford, Herford, Germany

Contribution: ​Investigation, Writing - review & editing

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Florian Kühn

Florian Kühn

Department of General, Visceral and Transplant Surgery, University Hospital of Munich, Munich, Germany

Contribution: ​Investigation, Writing - review & editing

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Shueb Mussa

Shueb Mussa

Department of General and Visceral Surgery, Ev. Diakonissenkrankenhaus Leipzig, Leipzig, Germany

Contribution: ​Investigation, Writing - review & editing

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Robert Oehring

Robert Oehring

Klinik für Allgemein-, Viszeral- und Tumorchirurgie, Harzklinikum D.C. Erxleben, Quedlinburg, Germany

Department of Surgery, Charité – Universitätsmedizin Berlin, Campus Virchow Klinikum and Campus Charité Mitte, Berlin, Germany

Contribution: ​Investigation, Writing - review & editing

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Sebastian Petzoldt

Sebastian Petzoldt

Clinic for General, Visceral and Minimally Invasive Surgery DRK Kliniken Berlin Köpenick, Berlin, Germany

Contribution: ​Investigation, Writing - review & editing

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Pompiliu Piso

Pompiliu Piso

Department of General and Visceral Surgery, Krankenhaus Barmherzige Brüder, Regensburg, Germany

Contribution: ​Investigation, Writing - review & editing

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Christian Prause

Christian Prause

Department of Gastroenterology, Hepatology, Hematology, Oncology, Palliative Medicine, Helios Park-Klinikum Leipzig, Leipzig, Germany

Contribution: Writing - review & editing, ​Investigation

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Christian Prinz

Christian Prinz

Clinic for Gastroenterology – Hepatology – Diabetology – Endocrinology, Helios Universitätsklinikum Wuppertal, Wuppertal, Germany

Contribution: ​Investigation, Writing - review & editing

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Christoph Reißfelder

Christoph Reißfelder

Department of Surgery, Medical Faculty Mannheim, Universitätsmedizin Mannheim, Heidelberg University, Mannheim, Germany

Contribution: ​Investigation, Writing - review & editing

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Maren Riechmann

Maren Riechmann

Department for General, Visceral and Thoratic Surgery, Sana Klinikum Hof, Hof, Germany

Contribution: ​Investigation, Writing - review & editing

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Jörg-Peter Ritz

Jörg-Peter Ritz

Department for General and Visceral Surgery, Helios Klinikum Schwerin, Schwerin, Germany

Contribution: ​Investigation, Writing - review & editing

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Jens Rolinger

Jens Rolinger

Department of General and Visceral Surgery, Kliniken Maria Hilf GmbH, Mönchengladbach, Germany

Contribution: ​Investigation, Writing - review & editing

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Robert Rosenberg

Robert Rosenberg

Department of General and Visceral Surgery, Kantonsspital Basel, Basel, Switzerland

Contribution: ​Investigation, Writing - review & editing

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Hubert Scheuerlein

Hubert Scheuerlein

Clinic for General, Visceral and Pediatric Surgery, St. Vincenz Clinics Paderborn GmbH, Paderborn, Germany

Contribution: ​Investigation, Writing - review & editing

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Dustin Schilawa

Dustin Schilawa

Department of General and Visceral Surgery, Katholisches Krankenhaus Dortmund West, Dortmund, Germany

Contribution: ​Investigation, Writing - review & editing

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Paul Magnus Schneider

Paul Magnus Schneider

Centre for Surgery Zurich, Hirslanden Medical Center, Zurich, Switzerland

Contribution: ​Investigation, Writing - review & editing

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Thilo Schwandner

Thilo Schwandner

Department of General and Visceral Surgery, Asklepios Klinik Lich, Lich, Germany

Contribution: ​Investigation, Writing - review & editing

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Marco Siech

Marco Siech

Department of Surgery I, Ostalb Klinikum Aalen, Aalen, Germany

Contribution: ​Investigation, Writing - review & editing

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Daniel Steinemann

Daniel Steinemann

Clarunis, St. Clara Hospital and University Hospital Basel, Basel, Switzerland

Contribution: ​Investigation, Writing - review & editing

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Oliver Stöltzing

Oliver Stöltzing

Elblandklinikum Riesa, Zentrum für Allgemein- und Viszeralchirurgie Riesa-Meißen, Meissen, Germany

Contribution: ​Investigation, Writing - review & editing

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Elke von Haeften

Elke von Haeften

Clinic for Visceral, Thoracic and Vascular Surgery, Klinikum Heidenheim, Heidenheim, Germany

Contribution: ​Investigation, Writing - review & editing

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Dominik Weihs

Dominik Weihs

Department of Surgery, Krankenhaus St. Veit/Glan, St. Veit/Glan, Austria

Contribution: Writing - review & editing, ​Investigation

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Armin Wiegering

Armin Wiegering

Klinik für Allgemein, Viszeral, Transplantations- und Thoraxchirurgie, Universitätsklinikum Frankfurt am Main, Goethe Universität Frankfurt am Main, Frankfurt am Main, Germany

Contribution: Writing - review & editing, ​Investigation

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Christina Barbara Zielinski

Christina Barbara Zielinski

Westpfalz-Klinikum Kaiserslautern, Kaiserslautern, Germany

Contribution: ​Investigation, Writing - review & editing

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Christoph Kowalski

Christoph Kowalski

Department of Health Services Research, German Cancer Society, Berlin, Germany

Contribution: Conceptualization, Writing - original draft, Writing - review & editing, Validation, Supervision, Project administration

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First published: 10 July 2025

Robert Siegel and Nora Tabea Sibert have contributed equally to this manuscript and thus share first authorship.

Meeting presentation: Parts of the study results were presented at the 50th German Coloproctology Congress 2024.

Abstract

Aim

To prospectively evaluate the effect of preoperative radiotherapy followed by surgery versus surgery alone on patient-reported outcomes (PROs) 1 year after surgery.

Method

Prospective observational cohort study in 127 colorectal cancer centres. Patients with rectal cancer completed European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core (EORTC-QLQ-C30) and Colorectal module (-CR29) questionnaires (thus providing PROs) before initialization of treatment [baseline (T0)] and at 12 months after surgery [follow up (T1)]. The PRO data together with sociodemographic information were linked to clinical data. Relevant confounders were identified using directed acyclic graphs. The effect of preoperative radiotherapy on selected PROs 12 months after surgery was estimated using adjusted tobit regression models.

Results

Of 1635 patients with rectal cancer for whom both baseline and follow-up PROs were available, 565 (35%) received preoperative radiotherapy. Twelve months after surgery, patients with surgery alone reported better scores for global health status/Quality of Life, urinary incontinence, faecal incontinence (patients without stoma), dyspareunia (female patients) and impotence (male patients) than did patients receiving preoperative radiotherapy. The statistically significant effects ranged between 33.20 (p < 0.001, R2 = 0.19) for impotence and 39.01 (p = 0.001, R2 = 0.10) for dyspareunia. For global health status/QoL and urinary incontinence, no statistically significant effect could be found.

Conclusion

Radiotherapy in addition to surgery negatively affects selected PROs 1 year after surgery in patients with rectal cancer. Compared with surgery alone, patients report profoundly impaired bowel and sexual function after preoperative radiotherapy. However, global health status/QoL was not affected statistically significantly. These results are an important argument for limiting preoperative radiotherapy to patients with a high risk of recurrence of rectal cancer and may facilitate informed decision-making.

Trial Registration

German Clinical Trial Registry Number DRKS00008724 (https://drks.de/search/de/trial/DRKS00008724).

CONFLICT OF INTEREST STATEMENT

Sibert, Kowalski and Breidenbach are employees of the German Cancer Society. Outside the submitted work, Siegel reports receiving travel support from Intuitive for robotic surgery. Bunse reports receiving payments from Coloplast for an educational event, as well as receiving support for travel and meetings from Intuitive for robotic surgery. Diller reports receiving payments for expert testimony from the Ärztkammer Westfalen Lippe. Ettrich reports receiving consultancy payments from MSD, Roche, Sanofi, BMS, AstraZeneca, Merck Serono, Sevier, Ipsen, AbbVie, Takeda, grants from Lilly and Servier, payments for lectures from Lilly and BMS, and travel expenses payments from Merck Serono. Flemming reports receiving consultancy payments from MyOn Care. Höppner reports receiving payments for lectures from Oncology News, China, and travel expenses payments from Intuitive Surgical. Neumann reports receiving payments for presentations/lectures from Johnson&Johnson and Dr. Falk Pharma International, support payments for attending meetings from Johnson & Johnson and payment for participating at advisory boards from Johnson&Johnson and Takeda. Ritz reports receiving payments for lectures from Intuitive Surgery and Medtronic. All other authors have nothing to declare.

DATA AVAILABILITY STATEMENT

For legal reasons, patient-specific data cannot be shared. Aggregated data can be requested from Nora Tabea Sibert ([email protected]).

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