推荐回答(5个)
关于胃癌的自然发展时间,即由原位癌的发生到未经有效治疗于死亡的时间。由于胃癌初发的准确时间很难确定,故在关胃癌的自然病程的资料较少,陈国熙等报道从最初出现症状至死亡的时间,在3例胃癌的统计:最长寿命4.3年,最短寿命0.4年,平均1.1年。河南报道食管癌自然发展时间。由食管脱落细胞阳性到X线证实早期食管癌的平均时间32.5个月,晚期自吞咽困难至死亡时间平均10.5个月。19例病人整个病程,最长78个月,最短23个月,平均43个月。并认为过去文献统计食管癌由确诊至死亡平均生存9个月至1年。只反映食管癌的一
段过程,不是食管癌的全过程。胃癌自然病程,根据中国医科大学肿瘤研究所统计,未经有效治疗的胃癌40例观察:平均寿命生存中位数为4.37个月,从住院日起至死亡日止,平均生存期为7.25个月(从发病到死亡的平均生存期为12.95个月
,为相对
的病程
)。50%在一年内死亡。这些数据都
不能代表原位癌不经治疗的自然发展过程。特别是胃癌发生的部位若不像食管癌那样易出现梗阻,影响饮食摄入,其自然病程可能比食管癌要更长,可惜未获得这方面的资料。但根据国内胃癌高发区人群胃粘膜不同病变的转化与暴露时间关系的分析,以30岁为起点,由慢性萎缩性胃炎至异型增生两条曲线在横座标相交的年龄跨度为22.5年,表示30岁时由慢性萎缩性胃炎到异型增生平均所需要的时间,国内有观察125例胃粘膜异型增生的演变,初诊为粘膜异型增生至发现胃癌的时间平均为5.7个月(2~13个月)。亦有报道胃癌发生大部分在初诊胃粘膜的癌前病变后的3年内,癌变时间平均为1.96年/人。以此类推,由重度异型增生转化成原位胃癌至死亡的自然病程估计要比食管癌更长。日本报道一组56例早期胃癌,未手术者经过37个月后有50%,4~5年后有80%~90%分别发展为进行期胃癌;胃镜诊断的早期胃癌病变平均患病期间为5年左右;未手术早期胃癌5年生存率64.5%,平均生存率77个月。
中期胃癌的生存期一般与病情和各人的体质差异等很多因素的影响,比如发现的时候处于的肿瘤时期,早期的胃癌生存期比较长,晚期胃癌生存期比较短。早期的胃癌有可能经过治疗以后存活5到10年以上,如果已经转移,处于胃癌晚期,那生存期有可能三到五年,或者是一两年时间,这需要积极的治疗观察,晚期胃癌可以通过放疗和化疗来进行处理。
你好,胃癌能活多久并不能简单说明,但是如果医生建议做手术一般都还处在早期,还是有可能治愈的,不要过度消极,早期胃癌还不至于能威胁生命。胃癌根治性手术是胃癌首选的治疗方法,通过完整的清除肿瘤组织,达到治愈的目的。
目前就我国情况来说,一般综合性医院胃癌的五年生存率平均为30%,而某些专科医院可高达50%;再看看各临床分期的五年生存率:Ⅰ期83.3%、Ⅱ期59.3%、Ⅲ期22.1%、Ⅳ期1.8%。可以看出早期胃癌存活率更高。
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