Standardization of the Definition and Surgical Management of Splenic Flexure Carcinoma by an International Expert Consensus Using the Delphi Technique: Room for Improvement?


Journal

Diseases of the colon and rectum
ISSN: 1530-0358
Titre abrégé: Dis Colon Rectum
Pays: United States
ID NLM: 0372764

Informations de publication

Date de publication:
01 06 2023
Historique:
medline: 25 5 2023
pubmed: 31 1 2023
entrez: 30 1 2023
Statut: ppublish

Résumé

Surgical management of splenic flexure carcinoma remains controversial. This study aimed to establish an expert international consensus on splenic flexure carcinoma management. A 3-round online-based Delphi study was conducted between September 2020 and April 2021. The first round included 18 experts from 12 different countries. For the second and third rounds, each expert in the first round was asked to invite 2 more colorectal surgeons (n = 47). Out of 47 invited experts, 89% (n = 42) participated in the second and third rounds of the consensus. A total of 35 questions were created and sent via the online questionnaire tool. Levels of recommendation based on voting concordance were graded as follows: more than 75% agreement was defined as strong, between 50% and 75% as moderate, and below 50% as weak. There was moderate consensus on the definition of splenic flexure (55%) as 10 cm from either side where the distal transverse colon turns into the proximal descending colon. Also, experts recommended an abdominopelvic CT scan plus intraoperative exploration (moderate consensus, 72%) for tumor localization and cancer registry. Segmental colectomy was the preferred technique for the management of splenic flexure carcinoma in the elective setting (72%). Moderate consensus was achieved on the technique of complete mesocolic excision and central vascular ligation principles for splenic flexure carcinoma (74%). Only strong consensus was achieved on the surgical approach for minimally invasive surgery (88%). Subjective decisions are based on individual expert clinical experience and not evidence based. This is the first internationally conducted Delphi consensus study regarding splenic flexure carcinoma. The definition of splenic flexure remains ambiguous. To more effectively compare oncologic outcomes among different cancer registries, guidelines need to be developed to standardize each domain and avoid arbitrary definitions. See Video Abstract at http://links.lww.com/DCR/C143 . ANTECEDENTES:El tratamiento quirúrgico del cáncer de ángulo esplénico sigue siendo controvertido.OBJETIVO:Establecer un consenso internacional de expertos sobre el manejo del cáncer del ángulo esplénico.DISEÑO:Se condujo un estudio Delphi en línea de 3 rondas entre septiembre de 2020 y febrero de 2021.ESCENARIO:La primera ronda incluyó a 18 expertos de 12 países distintos. Para la segunda y tercera rondas, a cada experto de la primera ronda se le pidió que invitara a 2 cirujanos colorrectales más de su región (n = 47). De los 47 expertos invitados, el 89% (n = 42) participó en la segunda y tercera ronda del consenso.INTERVENCIONES:Se crearon y enviaron un total de 35 preguntas a través de la herramienta de cuestionario en línea.PRINCIPALES MEDIDAS DE RESULTADO:Los niveles de recomendación basados en la concordancia de votos fueron jerarquizados de la siguiente manera: más del 75% de acuerdo se definió como fuerte, entre 50 y 75% como moderado y por debajo del 50% como débil.RESULTADOS:Hubo un consenso moderado sobre la definición de ángulo esplénico (55%) como 10 cm desde cualquier lado donde el colon transverso distal se convierte en el colon descendente proximal. Así también, los expertos recomendaron la tomografía computarizada abdominopélvica más la exploración intraoperatoria (consenso moderado, 72%) para la localización del tumor y el registro del ángulo esplénico. La colectomía segmentaria fue la técnica preferida para el tratamiento del cáncer de ángulo esplénico en el caso de ser electivo (72%). Se logró un consenso moderado sobre la técnica de escisión completa del mesocolon y los principios de ligadura vascular a nivel central para el cáncer de ángulo esplénico (74%). Solo se logró un fuerte consenso sobre el abordaje quirúrgico para la cirugía mínimamente invasiva (88%).LIMITACIONES:Decisiones subjetivas basadas en la experiencia clínica de expertos individuales y no basadas en evidencia.CONCLUSIONES:Este es el primer estudio internacional de consenso Delphi realizado sobre el cáncer de ángulo esplénico. Si bien encontramos un consenso moderado sobre las modalidades de diagnóstico preoperatorio y el manejo quirúrgico, la definición de ángulo esplénico sigue siendo ambigua. Para comparar de manera más efectiva los resultados oncológicos entre diferentes registros de cáncer, se deben desarrollar pautas para estandarizar cada dominio y evitar definiciones arbitrarias. Consulte Video Resumen en http://links.lww.com/DCR/C143 . (Traducción-Dr. Osvaldo Gauto ).

Sections du résumé

BACKGROUND
Surgical management of splenic flexure carcinoma remains controversial.
OBJECTIVE
This study aimed to establish an expert international consensus on splenic flexure carcinoma management.
DESIGN
A 3-round online-based Delphi study was conducted between September 2020 and April 2021.
SETTING
The first round included 18 experts from 12 different countries. For the second and third rounds, each expert in the first round was asked to invite 2 more colorectal surgeons (n = 47). Out of 47 invited experts, 89% (n = 42) participated in the second and third rounds of the consensus.
INTERVENTIONS
A total of 35 questions were created and sent via the online questionnaire tool.
MAIN OUTCOME MEASURES
Levels of recommendation based on voting concordance were graded as follows: more than 75% agreement was defined as strong, between 50% and 75% as moderate, and below 50% as weak.
RESULTS
There was moderate consensus on the definition of splenic flexure (55%) as 10 cm from either side where the distal transverse colon turns into the proximal descending colon. Also, experts recommended an abdominopelvic CT scan plus intraoperative exploration (moderate consensus, 72%) for tumor localization and cancer registry. Segmental colectomy was the preferred technique for the management of splenic flexure carcinoma in the elective setting (72%). Moderate consensus was achieved on the technique of complete mesocolic excision and central vascular ligation principles for splenic flexure carcinoma (74%). Only strong consensus was achieved on the surgical approach for minimally invasive surgery (88%).
LIMITATIONS
Subjective decisions are based on individual expert clinical experience and not evidence based.
CONCLUSIONS
This is the first internationally conducted Delphi consensus study regarding splenic flexure carcinoma. The definition of splenic flexure remains ambiguous. To more effectively compare oncologic outcomes among different cancer registries, guidelines need to be developed to standardize each domain and avoid arbitrary definitions. See Video Abstract at http://links.lww.com/DCR/C143 .
ESTANDARIZACIN DE LA DEFINICIN Y MANEJO QUIRRGICO DEL CARCINOMA DE NGULO ESPLNICO ESTABLECIDO POR UN CONSENSO INTERNACIONAL DE EXPERTOS UTILIZANDO LA TCNICA DELPHI ESPACIO PARA MEJORAR
ANTECEDENTES:El tratamiento quirúrgico del cáncer de ángulo esplénico sigue siendo controvertido.OBJETIVO:Establecer un consenso internacional de expertos sobre el manejo del cáncer del ángulo esplénico.DISEÑO:Se condujo un estudio Delphi en línea de 3 rondas entre septiembre de 2020 y febrero de 2021.ESCENARIO:La primera ronda incluyó a 18 expertos de 12 países distintos. Para la segunda y tercera rondas, a cada experto de la primera ronda se le pidió que invitara a 2 cirujanos colorrectales más de su región (n = 47). De los 47 expertos invitados, el 89% (n = 42) participó en la segunda y tercera ronda del consenso.INTERVENCIONES:Se crearon y enviaron un total de 35 preguntas a través de la herramienta de cuestionario en línea.PRINCIPALES MEDIDAS DE RESULTADO:Los niveles de recomendación basados en la concordancia de votos fueron jerarquizados de la siguiente manera: más del 75% de acuerdo se definió como fuerte, entre 50 y 75% como moderado y por debajo del 50% como débil.RESULTADOS:Hubo un consenso moderado sobre la definición de ángulo esplénico (55%) como 10 cm desde cualquier lado donde el colon transverso distal se convierte en el colon descendente proximal. Así también, los expertos recomendaron la tomografía computarizada abdominopélvica más la exploración intraoperatoria (consenso moderado, 72%) para la localización del tumor y el registro del ángulo esplénico. La colectomía segmentaria fue la técnica preferida para el tratamiento del cáncer de ángulo esplénico en el caso de ser electivo (72%). Se logró un consenso moderado sobre la técnica de escisión completa del mesocolon y los principios de ligadura vascular a nivel central para el cáncer de ángulo esplénico (74%). Solo se logró un fuerte consenso sobre el abordaje quirúrgico para la cirugía mínimamente invasiva (88%).LIMITACIONES:Decisiones subjetivas basadas en la experiencia clínica de expertos individuales y no basadas en evidencia.CONCLUSIONES:Este es el primer estudio internacional de consenso Delphi realizado sobre el cáncer de ángulo esplénico. Si bien encontramos un consenso moderado sobre las modalidades de diagnóstico preoperatorio y el manejo quirúrgico, la definición de ángulo esplénico sigue siendo ambigua. Para comparar de manera más efectiva los resultados oncológicos entre diferentes registros de cáncer, se deben desarrollar pautas para estandarizar cada dominio y evitar definiciones arbitrarias. Consulte Video Resumen en http://links.lww.com/DCR/C143 . (Traducción-Dr. Osvaldo Gauto ).

Identifiants

pubmed: 36716403
doi: 10.1097/DCR.0000000000002692
pii: 00003453-202306000-00009
doi:

Types de publication

Video-Audio Media Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

805-815

Informations de copyright

Copyright © The ASCRS 2023.

Références

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Auteurs

Cigdem Benlice (C)

Department of General Surgery, School of Medicine; Ankara University, Ankara, Turkey.

Amjad Parvaiz (A)

Department of General Surgery, Champalimaud Cancer Foundation, Lisbon, Portugal.

Bilgi Baca (B)

Department of General Surgery, School of Medicine; Acibadem Mehmet Ali Aydinlar, Istanbul, Turkey.

Werner Hohenberger (W)

Department of General Surgery, Universitatsklinikum Erlangen, Germany.

Danilo Miskovic (D)

Department of General Surgery, St Marks Hospital, United Kingdom.

Luca Stocchi (L)

Division of Colorectal Surgery, Mayo Clinic, Jacksonville, Florida.

Scott Steele (S)

Department of Colorectal Surgery, DDSI, Celeveland Clinic, Cleveland, Ohio.

Seon-Hahn Kim (SH)

Division of Colon and Rectal Surgery, Department of Surgery, Korea University Anam Hospital, Seoul, South Korea.

Torbjörn Holm (T)

Division of Coloproctology, Department of Surgical Gastroenterology, Karolinska University Hospital, Stockholm, Sweden.

Antonino Spinelli (A)

Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy.
Department of General Surgery, IRCCS Humanitas Research Hospital, Rozzano Milan, Italy.

Ismail Gogenur (I)

Department of Clinical Medicine, Center for Surgical Science, University of Copenhagen, Copenhagen, Denmark.

Yves Panis (Y)

Department of Colorectal Surgery, Beaujon Hospital and University of Paris, France.

Hirotoshi Hasegawa (H)

Department of Surgery, Tokyo Dental College Ichikawa General Hospital, Ichikawa, Japan.

Alexey Karachun (A)

Department of Abdominal Surgical Oncology, N.N. Petrov National Medical Research Center of Oncology, Saint Petersburg, Russia.

Juan C Patron Uriburu (JCP)

Department of General Surgery, Coloproctology Service, British Hospital of Buenos Aires, Buenos Aires, Argentina.

Masaki Ito (M)

Department of Colorectal Surgery, National Cancer Center Hospital East Chiba, Japan.

Roland Croner (R)

Department of General, Abdominal and Vascular Surgery, University Hospital, Magdeburg, Germany.

Hermann Kessler (H)

Department of Colorectal Surgery, DDSI, Celeveland Clinic, Cleveland, Ohio.

Mehmet Ayhan Kuzu (MA)

Department of General Surgery, School of Medicine; Ankara University, Ankara, Turkey.

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