Prediction of surgical difficulty in minimally invasive surgery for rectal cancer by use of MRI pelvimetry. Issue 4 (28th April 2020)
- Record Type:
- Journal Article
- Title:
- Prediction of surgical difficulty in minimally invasive surgery for rectal cancer by use of MRI pelvimetry. Issue 4 (28th April 2020)
- Main Title:
- Prediction of surgical difficulty in minimally invasive surgery for rectal cancer by use of MRI pelvimetry
- Authors:
- Yamamoto, T.
Kawada, K.
Kiyasu, Y.
Itatani, Y.
Mizuno, R.
Hida, K.
Sakai, Y. - Abstract:
- Abstract : Background: Technical difficulties in rectal surgery are often related to dissection in a limited surgical field. This study investigated the clinical value of MRI pelvimetry in the prediction of surgical difficulty associated with minimally invasive rectal surgery. Methods: Patients with rectal cancer who underwent laparoscopic or robotic total mesorectal excision between 2005 and 2017 were reviewed retrospectively and categorized according to surgical difficulty on the basis of duration of surgery, conversion to an open procedure, use of the transanal approach, postoperative hospital stay, blood loss and postoperative complications. Preoperative clinical and MRI‐related parameters were examined to develop a prediction model to estimate the extent of surgical difficulty, and to compare anastomotic leakage rates in the low‐ and high‐grade surgical difficulty groups. Prognosis was investigated by calculating overall and relapse‐free survival, and cumulative local and distant recurrence rates. Results: Of 121 patients analysed, 104 (86·0 per cent) were categorized into the low‐grade group and 17 (14·0 per cent) into the high‐grade group. Multivariable analysis indicated that high‐grade surgical difficulty was associated with a BMI above 25 kg/m 2 (odds ratio (OR) 4·45, P = 0·033), tumour size 45 mm or more (OR 5·42, P = 0·042), anorectal angle 123° or more (OR 5·98, P = 0·028) and pelvic outlet less than 82·7 mm (OR 6·62, P = 0·048). All of these features wereAbstract : Background: Technical difficulties in rectal surgery are often related to dissection in a limited surgical field. This study investigated the clinical value of MRI pelvimetry in the prediction of surgical difficulty associated with minimally invasive rectal surgery. Methods: Patients with rectal cancer who underwent laparoscopic or robotic total mesorectal excision between 2005 and 2017 were reviewed retrospectively and categorized according to surgical difficulty on the basis of duration of surgery, conversion to an open procedure, use of the transanal approach, postoperative hospital stay, blood loss and postoperative complications. Preoperative clinical and MRI‐related parameters were examined to develop a prediction model to estimate the extent of surgical difficulty, and to compare anastomotic leakage rates in the low‐ and high‐grade surgical difficulty groups. Prognosis was investigated by calculating overall and relapse‐free survival, and cumulative local and distant recurrence rates. Results: Of 121 patients analysed, 104 (86·0 per cent) were categorized into the low‐grade group and 17 (14·0 per cent) into the high‐grade group. Multivariable analysis indicated that high‐grade surgical difficulty was associated with a BMI above 25 kg/m 2 (odds ratio (OR) 4·45, P = 0·033), tumour size 45 mm or more (OR 5·42, P = 0·042), anorectal angle 123° or more (OR 5·98, P = 0·028) and pelvic outlet less than 82·7 mm (OR 6·62, P = 0·048). All of these features were used to devise a four‐variable scoring model to predict surgical difficulty. In patients categorized as high grade for surgical difficulty, the anastomotic leakage rate was 53 per cent (9 of 17 patients), compared with 9·6 per cent (10 of 104) in the low‐grade group ( P < 0·001). The high‐grade group had a significantly higher local recurrence rate than the low‐grade group ( P = 0·002). Conclusion: This study highlights the impact of clinical variables and MRI pelvimetry in the prediction of surgical difficulty in minimally invasive rectal surgery. Abstract : This study highlights the impact of MRI pelvimetry in predicting surgical difficulty in laparoscopic rectal surgery. Multivariable analysis identified that surgical difficulty was significantly associated with four variables: BMI, tumour size, anorectal angle and pelvic outlet. A novel scoring model using these four variables to predict surgical difficulty is proposed. MRI pelvimetry and TME difficulty Abstract : Antecedentes: Las dificultades técnicas en la cirugía del recto a menudo están relacionadas con la disección en un campo quirúrgico limitado. Este estudio se propuso investigar la utilidad clínica de la pelvimetría con MRI para predecir la dificultad quirúrgica asociada con la cirugía mínimamente invasiva del recto. Métodos: Pacientes con cáncer de recto sometidos a resección total del mesorrecto laparoscópica o robótica entre 2005 y 2017 fueron revisados retrospectivamente y categorizados de acuerdo con la dificultad técnica en base al tiempo operatorio, conversión, uso de abordaje transanal, estancia hospitalaria postoperatoria, pérdida sanguínea y complicaciones postoperatorias. Se examinaron parámetros clínicos preoperatorios y relacionados con la MRI para desarrollar un modelo de predicción que estimara el grado de dificultad técnica y pudiera comparar la tasa de dehiscencias anastomóticas en los grupos de bajo y alto riesgo. También se evaluó el pronóstico con el cálculo de la supervivencia global, supervivencia libre de recidiva y tasas acumuladas de recidiva local y a distancia. Resultados: De un total de 121 pacientes analizados, 104 pacientes (85, 9%) fueron categorizados en el grupo con bajo grado de dificultad técnica, mientras que 17 pacientes (14, 1%) lo fueron en el grupo de alto grado. En el análisis multivariable, un alto grado de dificultad técnica se asociaba con un índice de masa corporal ( body mass index, BMI) > 25 kg/m 2 (razón de oportunidades, odds ratio (OR), 4, 5; P = 0, 033), tamaño tumoral ≥ 45 mm (OR, 5, 4; P = 0, 042), ángulo anorrectal ≥ 123 grados (OR, 6, 0; P = 0, 028), estrecho pélvico < 82, 7 mm (OR, 6, 6; P = 0, 048); en consecuencia, todas estas características fueron utilizadas para establecer un modelo de puntuación con 4 variables que pudiera predecir la dificultad técnica. En los pacientes categorizados como de alto grado de dificultad técnica, la tasa de dehiscencia anastomótica fue del 52, 9%, mientras que en el grupo de bajo grado fue del 9, 6% ( P < 0, 001). Finalmente, el grupo con alto grado mostró una tasa significativamente más elevada de recidiva local en comparación con el grupo de bajo grado ( P = 0, 002). Conclusión: Este estudio pone de relieve el impacto de variables clínicas y de la pelvimetría con MRI para predecir la dificultad técnica en la cirugía mínimamente invasiva del recto. … (more)
- Is Part Of:
- BJS open. Volume 4:Issue 4(2020)
- Journal:
- BJS open
- Issue:
- Volume 4:Issue 4(2020)
- Issue Display:
- Volume 4, Issue 4 (2020)
- Year:
- 2020
- Volume:
- 4
- Issue:
- 4
- Issue Sort Value:
- 2020-0004-0004-0000
- Page Start:
- 666
- Page End:
- 677
- Publication Date:
- 2020-04-28
- Subjects:
- Surgery -- Periodicals
617.005 - Journal URLs:
- https://academic.oup.com/bjsopen ↗
http://onlinelibrary.wiley.com/doi/10.1002/bjs5.2017.1.issue-1/issuetoc ↗
http://onlinelibrary.wiley.com/ ↗ - DOI:
- 10.1002/bjs5.50292 ↗
- Languages:
- English
- ISSNs:
- 2474-9842
- Deposit Type:
- Legaldeposit
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- Available online (eLD content is only available in our Reading Rooms) ↗
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- British Library DSC - BLDSS-3PM
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- 20887.xml