目的 确定肿瘤相关物质群(tumor supplied group of factor,TSGF)的人群正常值范围,及其在相应人群随访研究,探讨其预测胃肿瘤发生的意义。方法 对1987～1996年参加胃癌筛检确定的非胃癌自然人群按照序贯试验的要求征集研究对象至500人...目的 确定肿瘤相关物质群(tumor supplied group of factor,TSGF)的人群正常值范围,及其在相应人群随访研究,探讨其预测胃肿瘤发生的意义。方法 对1987～1996年参加胃癌筛检确定的非胃癌自然人群按照序贯试验的要求征集研究对象至500人,取血并分离血清,采用盲法对血清进行TSGF检测,用SPSS软件包对测定结果进行分析。对TSGF值单次或多次超过正常值范围的研究对象和现场胃癌术后患者进行随访,并对该人群随访到新发生肿瘤患者的TSGF值进行回顾性分析。结果 本研究结果显示,TSGF值与非胃癌的其他胃病状态无关,但受年龄和性别的影响,男性的正常值范围可定为(25.23,64.43U/ml)(±1.96s);女性TSGF受年龄影响较大,小于45岁年龄组的范围为(26.71,57.83U/ml),大于45岁年龄组为(30.04,68.56U/ml),该正常值范围适用于中老年对象。研究显示,TSGF值升高对预测肿瘤发病有一定的价值,对远期是否发生肿瘤预测的意义有待进一步探讨。展开更多
AIM:To address the diagnostic value of the regular arrangement of collecting venules(RAC)among old age patients. METHODS:A total of 390 consecutive patients whose Helicobacter pylori(H.pylori)status was known and who ...AIM:To address the diagnostic value of the regular arrangement of collecting venules(RAC)among old age patients. METHODS:A total of 390 consecutive patients whose Helicobacter pylori(H.pylori)status was known and who received upper gastrointestinal endoscopy,were retrospectively studied for the presence or absence of RAC as well as gastric mucosal atrophy.The sensitivity, specificity,positive predictive value,negative predic-tive value and accuracy of RAC to detect normal gastric mucosa were assessed and were compared among two different age groups of patients. RESULTS:The mean age±standard deviation(SD)of included patients(n=390),was 62.9±13 years.The sensitivity,specificity,positive predictive value,negative predictive value and accuracy of RAC to detect normal gastric mucosa were 91.7%,66.1%,18.8%,99%and 68.1%respectively.Although the sensitivity,specificity,positive predictive value,negative predictive value and accuracy of RAC among patients<60 years(n= 139)was 94.7%,71.2%,46.2%,98.1%and 76.1%,respectively,it was 80%,64.3%,5.1%,93%and 64.6%, respectively,among patients≥60 years(n=251). Younger Patients(<60 years),have highly significant rates of RAC sensitivity,positive predictive value,and accuracy(P≤0.001,≤0.001 and≤0.02,respectively).Older patients had highly significant rates of H. pylori infection and gastric mucosal atrophy(P≤0.01). CONCLUSION:Although RAC is a valuable sign for real-time identification of normal gastric mucosa,its accuracy seems to be affected by the patient's age.展开更多
文摘目的 确定肿瘤相关物质群(tumor supplied group of factor,TSGF)的人群正常值范围,及其在相应人群随访研究,探讨其预测胃肿瘤发生的意义。方法 对1987～1996年参加胃癌筛检确定的非胃癌自然人群按照序贯试验的要求征集研究对象至500人,取血并分离血清,采用盲法对血清进行TSGF检测,用SPSS软件包对测定结果进行分析。对TSGF值单次或多次超过正常值范围的研究对象和现场胃癌术后患者进行随访,并对该人群随访到新发生肿瘤患者的TSGF值进行回顾性分析。结果 本研究结果显示,TSGF值与非胃癌的其他胃病状态无关,但受年龄和性别的影响,男性的正常值范围可定为(25.23,64.43U/ml)(±1.96s);女性TSGF受年龄影响较大,小于45岁年龄组的范围为(26.71,57.83U/ml),大于45岁年龄组为(30.04,68.56U/ml),该正常值范围适用于中老年对象。研究显示,TSGF值升高对预测肿瘤发病有一定的价值,对远期是否发生肿瘤预测的意义有待进一步探讨。
文摘AIM:To address the diagnostic value of the regular arrangement of collecting venules(RAC)among old age patients. METHODS:A total of 390 consecutive patients whose Helicobacter pylori(H.pylori)status was known and who received upper gastrointestinal endoscopy,were retrospectively studied for the presence or absence of RAC as well as gastric mucosal atrophy.The sensitivity, specificity,positive predictive value,negative predic-tive value and accuracy of RAC to detect normal gastric mucosa were assessed and were compared among two different age groups of patients. RESULTS:The mean age±standard deviation(SD)of included patients(n=390),was 62.9±13 years.The sensitivity,specificity,positive predictive value,negative predictive value and accuracy of RAC to detect normal gastric mucosa were 91.7%,66.1%,18.8%,99%and 68.1%respectively.Although the sensitivity,specificity,positive predictive value,negative predictive value and accuracy of RAC among patients<60 years(n= 139)was 94.7%,71.2%,46.2%,98.1%and 76.1%,respectively,it was 80%,64.3%,5.1%,93%and 64.6%, respectively,among patients≥60 years(n=251). Younger Patients(<60 years),have highly significant rates of RAC sensitivity,positive predictive value,and accuracy(P≤0.001,≤0.001 and≤0.02,respectively).Older patients had highly significant rates of H. pylori infection and gastric mucosal atrophy(P≤0.01). CONCLUSION:Although RAC is a valuable sign for real-time identification of normal gastric mucosa,its accuracy seems to be affected by the patient's age.
