目的:明确影响胰腺胶样癌(colloid carcinoma,CC)患者预后的危险因素,构建临床预后模型,对患者生存预后进行评估。方法:选取美国国家癌症研究所监测、流行病学和最终结果(Surveillance,Epidemiology,and End Results,SEER)数据库中510...目的:明确影响胰腺胶样癌(colloid carcinoma,CC)患者预后的危险因素,构建临床预后模型,对患者生存预后进行评估。方法:选取美国国家癌症研究所监测、流行病学和最终结果(Surveillance,Epidemiology,and End Results,SEER)数据库中510例患者,将其分为训练集和验证集,并根据训练集的临床变量构建预后模型,以预测CC患者在1、3、5年的癌症特异性生存率的概率值,而后用验证集验证训练集筛选出的变量及校准预测模型。结果:利用SEER数据库筛选CC患者预后的影响因素,包括肿瘤分级、检出淋巴结数量、是否手术、T分期、是否转移,并根据以上影响因素构建了临床预后模型。受试者特征曲线及曲线下面积值表明本预测模型具有较高的准确性。校正曲线显示模型预测的生存率与实际生存率相近。结论:本研究构建出CC患者的临床预后模型,并利用此模型对患者的生存预后进行了有效评估,填补了这种罕见肿瘤预后研究的空白,为临床医生评估CC患者预后提供了一项有力依据。展开更多
Pancreatic ductal adenocarcinoma(PDAC)is one of the most lethal cancers in humans,and utilized treatments over the past decades have shown little evidence of improvement in survival.This lack of progress in PDAC treat...Pancreatic ductal adenocarcinoma(PDAC)is one of the most lethal cancers in humans,and utilized treatments over the past decades have shown little evidence of improvement in survival.This lack of progress in PDAC treatment outcomes has largely been attributed to a variety of limitations in all phases of care.These limitations most notably include late diagnosis leading to limited treatment options and consequently poorer response to treatments and eventual outcomes.Clinical implications regarding the emergence of circulating tumor cells and DNA(ctDNA)have shown promise in augmenting each step in the management of PDAC.This paper will review the emergence of ctDNA and its value in detection of common PDAC DNA alterations,potential clinical implications and utility,followed by the current limitations and the next steps that need to be taken to translate its use into a standard of care.展开更多
文摘目的:明确影响胰腺胶样癌(colloid carcinoma,CC)患者预后的危险因素,构建临床预后模型,对患者生存预后进行评估。方法:选取美国国家癌症研究所监测、流行病学和最终结果(Surveillance,Epidemiology,and End Results,SEER)数据库中510例患者,将其分为训练集和验证集,并根据训练集的临床变量构建预后模型,以预测CC患者在1、3、5年的癌症特异性生存率的概率值,而后用验证集验证训练集筛选出的变量及校准预测模型。结果:利用SEER数据库筛选CC患者预后的影响因素,包括肿瘤分级、检出淋巴结数量、是否手术、T分期、是否转移,并根据以上影响因素构建了临床预后模型。受试者特征曲线及曲线下面积值表明本预测模型具有较高的准确性。校正曲线显示模型预测的生存率与实际生存率相近。结论:本研究构建出CC患者的临床预后模型,并利用此模型对患者的生存预后进行了有效评估,填补了这种罕见肿瘤预后研究的空白,为临床医生评估CC患者预后提供了一项有力依据。
文摘Pancreatic ductal adenocarcinoma(PDAC)is one of the most lethal cancers in humans,and utilized treatments over the past decades have shown little evidence of improvement in survival.This lack of progress in PDAC treatment outcomes has largely been attributed to a variety of limitations in all phases of care.These limitations most notably include late diagnosis leading to limited treatment options and consequently poorer response to treatments and eventual outcomes.Clinical implications regarding the emergence of circulating tumor cells and DNA(ctDNA)have shown promise in augmenting each step in the management of PDAC.This paper will review the emergence of ctDNA and its value in detection of common PDAC DNA alterations,potential clinical implications and utility,followed by the current limitations and the next steps that need to be taken to translate its use into a standard of care.
