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- Zaborowski, AM, et al.
(författare)
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Microsatellite instability in young patients with rectal cancer: molecular findings and treatment response
- 2022
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Ingår i: The British journal of surgery. - : Oxford University Press (OUP). - 1365-2168 .- 0007-1323. ; 109:3, s. 251-255
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Tidskriftsartikel (refereegranskat)abstract
- In this study of 400 patients with early-onset rectal cancer, 12.5 per cent demonstrated microsatellite instability (MSI). MSI was associated with a reduced likelihood of nodal positivity, an increased rate of pathological complete response, and improved disease-specific survival.
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- van de Velde, C. J. H., et al.
(författare)
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Experts reviews of the multidisciplinary consensus conference colon and rectal cancer 2012 : Science, opinions and experiences from the experts of surgery
- 2014
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Ingår i: European Journal of Surgical Oncology. - : Elsevier BV. - 0748-7983 .- 1532-2157. ; 40:4, s. 454-468
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Tidskriftsartikel (refereegranskat)abstract
- The first multidisciplinary consensus conference on colon and rectal cancer was held in December 2012, achieving a majority of consensus for diagnostic and treatment decisions using the Delphi Method. This article will give a critical appraisal of the topics discussed during the meeting and in the consensus document by well-known leaders in surgery that were involved in this multidisciplinary consensus process. Scientific evidence, experience and opinions are collected to support multidisciplinary teams (MDT) with arguments for medical decision-making in diagnosis, staging and treatment strategies for patients with colon or rectal cancer. Surgery is the cornerstone curative treatment for colon and rectal cancer. Standardizing treatment is an effective instrument to improve outcome of multidisciplinary cancer care for patients with colon and rectal cancer. In this article, a review of the following focuses; Perioperative care, age and colorectal surgery, obstructive colorectal cancer, stenting, surgical anatomical considerations, total mesorectal excision (TME) surgery and training, surgical considerations for locally advanced rectal cancer (LARC) and local recurrent rectal cancer (LRRC), surgery in stage IV colorectal cancer, definitions of quality of surgery, transanal endoscopic microsurgery (TEM), laparoscopic colon and rectal surgery, preoperative radiotherapy and chemoradiotherapy, and how about functional outcome after surgery?
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- Zweegman, Sonja, et al.
(författare)
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Melphalan, prednisone, and lenalidomide versus melphalan, prednisone, and thalidomide in untreated multiple myeloma.
- 2016
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Ingår i: Blood. - : American Society of Hematology. - 1528-0020 .- 0006-4971. ; 127:9, s. 1109-1116
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Tidskriftsartikel (refereegranskat)abstract
- The combination of melphalan, prednisone and thalidomide (MPT) is considered standard therapy for newly diagnosed patients with multiple myeloma (NDMM) who are ineligible for stem-cell transplantation. Long term treatment with thalidomide is hampered by neurotoxicity. Melphalan, prednisone and lenalidomide, followed by lenalidomide maintenance therapy showed promising results, without severe neuropathy emerging. We randomly assigned 668 NDMM patients, ineligible for stem-cell transplantation, between nine 4-weekly cycles of MPT followed by thalidomide maintenance until disease progression or unacceptable toxicity (MPT-T) and the same MP regimen with thalidomide being replaced by lenalidomide (MPR-R). This multicenter, open-label, randomised phase 3 trial was undertaken by HOVON and the NMSG. The primary endpoint was progression-free survival (PFS). The accrual for the study was completed in October 19, 2012. 318 patients were randomly assigned to receive MPT-T and 319 MPR-R. After a median follow up of 36 months PFS with MPT-T was 20 months (95% CI 18-23 months) versus 23 months (95% CI 19-27 months) with MPR-R (HR 0.87 [0.72-1.04], p=0.12). Response rates were similar, with ≥VGPR 47% and 45% respectively. Hematological toxicity was more pronounced with MPR-R, especially grade 3 and 4 neutropenia: 64 versus 27%. Neuropathy ≥ grade 3 was significantly higher in the MPT-T arm; 16% versus 2% in MPR-R, resulting in a significant shorter duration of maintenance therapy (5 versus 17 months in MPR-R), irrespective of age. MPR-R has no advantage over MPT-T concerning efficacy. The toxicity profile differed with clinically significant neuropathy during thalidomide maintenance versus myelosuppression with MPR.
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- D'Souza, Nigel, et al.
(författare)
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Definition of the Rectum An International, Expert-based Delphi Consensus
- 2019
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Ingår i: Annals of Surgery. - : LIPPINCOTT WILLIAMS & WILKINS. - 0003-4932 .- 1528-1140. ; 270:6, s. 955-959
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Tidskriftsartikel (refereegranskat)abstract
- Background: The wide global variation in the definition of the rectum has led to significant inconsistencies in trial recruitment, clinical management, and outcomes. Surgical technique and use of preoperative treatment for a cancer of the rectum and sigmoid colon are radically different and dependent on the local definitions employed by the clinical team. A consensus definition of the rectum is needed to standardise treatment. Methods: The consensus was conducted using the Delphi technique with multidisciplinary colorectal experts from October, 2017 to April, 2018. Results: Eleven different definitions for the rectum were used by participants in the consensus. Magnetic resonance imaging (MRI) was the most frequent modality used to define the rectum (67%), and the preferred modality for 72% of participants. The most agreed consensus landmark (56%) was "the sigmoid take-off,'' an anatomic, image-based definition of the junction of the mesorectum and mesocolon. In the second round, 81% of participants agreed that the sigmoid take-off as seen on computed tomography or MRI achieved consensus, and that it could be implemented in their institution. Also, 87% were satisfied with the sigmoid take-off as the consensus landmark. Conclusion: An international consensus definition for the rectumis the point of the sigmoid take-off as visualized on imaging. The sigmoid take-off can be identified as the mesocolon elongates as the ventral and horizontal course of the sigmoid on axial and sagittal views respectively on cross-sectional imaging. Routine application of this landmark during multidisciplinary team discussion for all patients will enable greater consistency in tumour localisation.
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- Warps, A. K., et al.
(författare)
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National differences in implementation of minimally invasive surgery for colorectal cancer and the influence on short-term outcomes
- 2022
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Ingår i: Surgical Endoscopy. - : Springer. - 0930-2794 .- 1432-2218. ; 36:8, s. 5986-6001
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: The timing and degree of implementation of minimally invasive surgery (MIS) for colorectal cancer vary among countries. Insights in national differences regarding implementation of new surgical techniques and the effect on postoperative outcomes are important for quality assurance, can show potential areas for country-specific improvement, and might be illustrative and supportive for similar implementation programs in other countries. Therefore, this study aimed to evaluate differences in patient selection, applied techniques, and results of minimal invasive surgery for colorectal cancer between the Netherlands and Sweden.METHODS: Patients who underwent elective minimally invasive surgery for T1-3 colon or rectal cancer (2012-2018) registered in the Dutch ColoRectal Audit or Swedish ColoRectal Cancer Registry were included. Time trends in the application of MIS were determined. Outcomes were compared for time periods with a similar level of MIS implementation (Netherlands 2012-2013 versus Sweden 2017-2018). Multilevel analyses were performed to identify factors associated with adverse short-term outcomes.RESULTS: A total of 46,095 Dutch and 8,819 Swedish patients undergoing MIS for colorectal cancer were included. In Sweden, MIS implementation was approximately 5 years later than in the Netherlands, with more robotic surgery and lower volumes per hospital. Although conversion rates were higher in Sweden, oncological and surgical outcomes were comparable. MIS in the Netherlands for the years 2012-2013 resulted in a higher reoperation rate for colon cancer and a higher readmission rate but lower non-surgical complication rates for rectal cancer if compared with MIS in Sweden during 2017-2018.CONCLUSION: This study showed that the implementation of MIS for colorectal cancer occurred later in Sweden than the Netherlands, with comparable outcomes despite lower volumes. Our study demonstrates that new surgical techniques can be implemented at a national level in a controlled and safe way, with thorough quality assurance.
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