Prediction of Persistent Tumor Status in Nasopharyngeal Carcinoma Post-Radiotherapy-Related Treatment: A Machine Learning Approach.

The duration of the response to radiotherapy-related treatment is a critical prognostic indicator for patients with nasopharyngeal carcinoma (NPC). Persistent tumor status, including residual tumor presence and early recurrence, is associated with poorer survival outcomes. To address this, we developed a prediction model to identify patients at a high risk of persistent tumor status prior to initiating treatment.

[Diagnosis and treatment of slow transit constipation complicated with adult megacolon].

Objective: To summarize the experience in the management of slow transit constipation complicated with adult megacolon.

Methods: The clinical data of 32 above patients admitted between October 2007 and June 2011 were retrospectively studied.

Results: Thirty-two patients were diagnosed as slow transit constipation according to the Roman III criteria.