Study on the No.253 Lymph Node Metastasis Patterns in Left-Sided Colon and Rectal Cancer
Ориентир для пациента и семьи
Простыми словами
Автоматическая сводка по структурированным данным реестра. Она помогает сориентироваться, но не заменяет официальный протокол или оценку врача.
- Что изучают
- В протоколе указаны: Laparoscopic colorectal surgery.
- Кому может быть актуально
- Состояния в реестре: Colorectal Cancer, Lymph Node Metastasis. Базовые параметры: 18 лет — 75 лет · Все.
- Что важно проверить
- Возраст, диагноз и пол — только базовые ориентиры. Предыдущее лечение, анализы и другие обязательные условия указаны ниже в критериях участия.
- Где проводится
- Китай
- Следующий шаг
- Сохраните исследование, покажите его лечащему врачу и уточните актуальный статус у исследовательского центра. Расходы, документы и поездка →
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Официальное название
Real World Registry Study on the No.253 Lymph Node Metastasis Patterns in Left-Sided Colon and Rectal Cancer
Обзор
The goal of this observational study is to learn about the the pattern of metastasis of the No.253 lymph node in colorectal cancer. The main questions it aims to answer are: 1. What are the risk factors for metastasis to the No.253 lymph node? 2.What is the prognosis for patients with metastasis to the No.253 lymph node? Patients with descending colon cancer, sigmoid colon cancer, and rectal cancer who undergo curative surgery with dissection of the No.253 lymph node are included in this study
Подробное описание
The No. 253 lymph node (also named as apical lymph node of inferior mesenteric artery), as the third station in the inferior mesenteric artery lymphatic system, plays a vital role in the lymphatic circulation of the descending colon, sigmoid colon, and rectum. They serve as the last barrier for tumor metastasis from regional to distant sites. The definition of the range of the No.253 lymph node primarily follows the Japanese Colorectal Cancer Treatment Guidelines: the medial boundary is the segment from the root of the inferior mesenteric artery to the origin of the left colic artery, the caudal boundary is from the origin of the left colic artery to the intersection with the inferior mesenteric vein, the lateral boundary is the outer margin of the inferior mesenteric vein, and the cranial boundary is from the horizontal section of the duodenum to the beginning of the jejunum. However, the pattern of metastasis of the No.253 lymph node in colorectal cancer remains unclear, with most studies being retrospective and showing significant differences in results. Therefore, the investigator plans to be the first internationally to carry out this retrospective, registry-based study to determine the metastasis pattern to the No. 253 lymph node in colorectal cancer. This will provide definitive clinical evidence for D3 lymph node dissection in colorectal surgery.
Вмешательства
- Процедура Laparoscopic colorectal surgery
Patients underwent laparoscopic left colectomy, sigmoid resection or rectal surgery according to the location of tumor.
Первичные конечные точки
- Metastatic rate of No.253 lymph node [Срок оценки: About 10 days after surgery]
Вторичные конечные точки (5)
- Number of harvested lymph nodes [Срок оценки: About 10 days after surgery]
- Incidence of postoperative complications [Срок оценки: 30 days after surgery]
- 5-year local recurrence rate [Срок оценки: 5 years after surgery]
- 5-year disease free survival rate [Срок оценки: 5 years after surgery]
- 5-year overall survival rate [Срок оценки: 5 years after surgery]
Критерии участия
Критерии включения
- Age: 18-75 years;
- Underwent laparoscopic left hemicolectomy, sigmoid colectomy, or rectal cancer radical surgery.
- Postoperative pathology confirmed as adenocarcinoma.
- No evidence of distant metastasis.
Критерии исключения
- Previous history of malignant colorectal tumors.
- Patients who have undergone multiple abdominal-pelvic surgeries.
- Patients undergoing emergency surgery due to complications such as intestinal obstruction, intestinal perforation, or intestinal bleeding.
- Surgery did not achieve R0 resection.
- Patients with concurrent other malignant tumors or multiple primary colorectal cancers.
- Patients unwilling to sign an informed consent or follow the study protocol for follow-up.
Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.
Здоровые добровольцы: Нет
Дизайн исследования
- Модель наблюдения
- Когортное
Центры проведения
Китай · 4 центра
- Peking Union Medical College Hospital — Пекин
- China-Japan Friendship Hospital — Пекин
- Beijing Cancer Hospital — Пекин
- Chinese PLA General Hospital — Пекин
Идентификаторы
NCT: NCT06135571 · NCC4280