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Endoscopic characteristics associated with malignancy in colorectal laterally spreading tumors / 中华消化内镜杂志
Chinese Journal of Digestive Endoscopy ; (12): 404-408, 2020.
Article in Chinese | WPRIM | ID: wpr-871411
ABSTRACT

Objective:

To investigate the independent predictors for malignancy in colorectal laterally spreading tumors (LSTs) by therapeutic endoscopy.

Methods:

Data of consecutive patients with colorectal LSTs who underwent endoscopic treatment in Beijing Friendship Hospital between June 2013 and March 2019 were collected for retrospective analysis. Patientsgender, age, body mass index, smoking history, and endoscopic and histological results were reviewed. Univariate analysis was used to identify the associated factors for malignancy of colorectal LSTs. Factors with statistical significance in univariate analysis were used in multivariate logistic regression to determine the independent predictors.

Results:

A total of 323 patients with 341 colorectal LSTs were involved in the study. The rate of malignancy was highest in non-granular pseudo depressed (NG-PD) subtype [85.48% (53/62)], followed by granular nodular mixed (G-NM) subtype [76.97% (117/152)]. Both of the above rates were significantly higher than that of granular homogenous (G-H) subtype [29.51% (18/61), P<0.001] and non-granular flat elevated (NG-FE) subtype [24.24% (16/66), P<0.001]. Univariate analysis showed that NG-PD subtype ( P<0.001, OR=18.40, 95% CI 7.46-45.42), G-NM subtype ( P<0.001, OR=10.45, 95% CI 5.30-20.58), rectosigmoid location ( P<0.001, OR=2.33, 95% CI 1.47-3.69) and size ≥2 cm ( P<0.001, OR=2.60, 95% CI 1.60-4.00) associated with malignancy for colorectal LSTs. In multivariate logistic regression, NG-PD subtype ( P<0.001, OR=17.51, 95% CI 7.06-43.43), G-NM subtype ( P<0.001, OR=8.25, 95% CI 4.07-16.73) and size ≥2 cm ( P=0.032, OR=1.80, 95% CI 1.05-3.08) remained to be independent predictors.

Conclusion:

LSTs of NG-PD subtype, G-NM subtype or size ≥2 cm are high risk factors of malignancy, in which cases, en bloc resection is required.
Full text: Available Index: WPRIM (Western Pacific) Type of study: Prognostic study / Risk factors Language: Chinese Journal: Chinese Journal of Digestive Endoscopy Year: 2020 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Type of study: Prognostic study / Risk factors Language: Chinese Journal: Chinese Journal of Digestive Endoscopy Year: 2020 Type: Article