Preoperative Prediction Model of Pathological Outcomes (Mesorectum Quality and Positive Circumferential Resection Margin) in Patients With Mid-low Rectal Cancer (PREMARE)
Elaboration of a preoperative prediction model of the quality of the mesorectum and the involvement of the circumferential margin in patients with mid-low rectal cancer who undergo laparoscopic anterior rectal resection.
In a second phase the investigators will study the utility of the prediction model in classifying patients with high risk of suboptimal quality of mesorectum and/or positive circumferential margin. Patients with high preoperative risk will undergo a transanal total mesorectal excision and patients with low risk a laparoscopic transabdominal mesorectal excision. The investigators finally will compare pathological outcomes ( quality of mesorectum and circumferential margin), survival and recurrence between the two groups.
연구 개요
연구 유형
등록 (실제)
연락처 및 위치
연구 장소
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Girona, 스페인, 17007
- University Hospital Dr. Josep Trueta of Girona
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참여기준
자격 기준
공부할 수 있는 나이
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
샘플링 방법
연구 인구
설명
Inclusion Criteria:
- Patients directed to laparoscopic anterior rectal resection through a transabdominal or a transanal approach.
- Age ≥ 18 years
- Histology of adenocarcinoma or adenoma
- With or without neoadjuvant chemoradiotherapy
- TNM classification: T2 or T3, any N stage or M stage
- Intention of resection R0
Exclusion Criteria:
- TNM classification: T1 or T4.
- Complicated rectal cancer or emergency surgery.
- Previous major colorectal surgery
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
코호트 및 개입
그룹/코호트 |
개입 / 치료 |
|---|---|
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High risk patients
Patients with high risk of suboptimal mesorectum quality and/or positive circumferential margin after the application of the preoperative prediction model developed
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To perform a total mesorectal excision through a transanal approach
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Low risk patients
Patients with low risk of suboptimal mesorectum quality and/or positive circumferential margin after the application of the preoperative prediction model developed
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Evaluation of the quality of mesorectum in the rectal specimen according to international consensus (goog quality, moderate quality and poor quality)
기간: 30 days
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Evaluation of the quality of mesorectum as optimal or suboptimal (international consensus defines three grades of resection: Group 1: including mesorectal resection, good quality Group 2: intramesorectal resection: moderate quality Group 3: resection in the muscularis propria, poor quality). Investigators will group patients into two groups: optimal mesorectum (group 1) and suboptimal mesorectum (group 2-3). |
30 days
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Evaluation of the circumferential margin status in the rectal specimen according international consensus (positive margin if tumor ≤ 1mm from circumferential margin)
기간: 30 days
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Evaluation of the circumferential margin status (positive or negative) in the rectal specimen according international consensus (positive margin if tumor ≤ 1mm from circumferential margin)
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30 days
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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Recurrence
기간: 2 years
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Rate of tumor recurrence
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2 years
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Survival
기간: 2 years
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Rate of survival
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2 years
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공동 작업자 및 조사자
간행물 및 유용한 링크
일반 간행물
- Planellas P, Marinello F, Elorza G, Golda T, Farres R, Espin-Basany E, Enriquez-Navascues JM, Kreisler E, Cornejo L, Codina-Cazador A. Extended Versus Standard Complete Mesocolon Excision in Sigmoid Colon Cancer: A Multicenter Randomized Controlled Trial. Ann Surg. 2022 Feb 1;275(2):271-280. doi: 10.1097/SLA.0000000000005161.
- Planellas P, Salvador H, Cornejo L, Buxo M, Farres R, Molina X, Maroto A, Ortega N, Rodriguez-Hermosa JI, Codina-Cazador A. Risk factors for suboptimal laparoscopic surgery in rectal cancer patients. Langenbecks Arch Surg. 2021 Mar;406(2):309-318. doi: 10.1007/s00423-020-02029-0. Epub 2020 Nov 27.
연구 기록 날짜
연구 주요 날짜
연구 시작 (실제)
기본 완료 (실제)
연구 완료 (실제)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (실제)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .
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