摘要
目的:探讨柠檬酸对术后首次行~(131)I治疗(简称清甲治疗)的分化型甲状腺癌(DTC)患者唾液腺功能的影响,阐明柠檬酸对~(131)I治疗的甲状腺癌患者唾液腺功能的保护作用。方法:经患者知情同意,随机选择准备首次行~(131)I治疗的68例甲状腺乳头状癌患者,随机分为对照组和柠檬酸组,每组34例。对照组患者无特殊准备,柠檬酸组患者于~(131)I治疗前1周及治疗后3周内每天含柠檬酸1min (0.2g/次)后吐出。2组患者分别于~(131)I治疗前24h及~(131)I治疗后3个月行2次99mTcO4-唾液腺显像检查,计算第15分钟摄取指数(15min UI)和排泌分数(SR),评估唾液腺功能。结果:与~(131)I治疗前比较,对照组患者~(131)I治疗后右侧腮腺和双侧颌下腺15min UI差异无统计学意义(P>0.05),左侧腮腺15min UI降低(P<0.05);与~(131)I治疗前比较,柠檬酸组患者~(131)I治疗后双侧腮腺及双侧颌下腺15min UI差异无统计学意义(P>0.05);与对照组比较,柠檬酸组患者~(131)I治疗前后双侧腮腺和双侧颌下腺15min UI差异均无统计学意义(P>0.05)。与~(131)I治疗前比较,对照组患者双侧腮腺治疗后SR降低(P<0.05),双侧颌下腺SR差异无统计学意义(P>0.05),柠檬酸组患者双侧腮腺和双侧颌下腺治疗后SR差异无统计学意义(P>0.05);与对照组~(131)I治疗后比较,柠檬酸组患者双侧腮腺SR升高(P<0.05),双侧颌下腺SR差异无统计学意义(P>0.05)。结论:DTC患者术后首次~(131)I治疗后唾液腺排泌功能可能受损,短期口含柠檬酸对唾液腺具有保护作用,可以减轻唾液腺的放射性损伤。
Objective:To investigate the effect of citric acid on the salivary gland function in the patients with differentiated thyroid cancer who received ~(131)I treatment for the first time after operation,and to clarify the protective effect of citric acid on the salivary gland function in the patients with thyroid cancer who received ~(131)I treatment.Methods:With the informed consent of the patients,68 patients with thyroid papillary carcinoma who were going to receive ~(131)I treatment were randomly selected and divided into control group and citric acid group(n=34).There was no special preparation for the patients in control group,and the patients in citric acid group kept citric acid in the mouth for 1 min and spit it out every day(0.2 g/time)at 1 week before and 3 weeks after ~(131)I treatment.The patients in two groups received 99 mTcO4-salivary gland imaging twice within 24 hbefore ~(131)I treatment and 3 months after ~(131)I treatment.The uptake index in the fifteenth minute(15 min UI)and the secretion ratio(SR)were calculated and the salivary gland function was evaluated.Results:Compared with before ~(131)I treatment,the 15 min UI of the right parotid gland and bilateral submandibular glands of the patients in control group after treatment had no significant differences(P>0.05);the 15 min UI of left parotid gland after treatment was slightly decreased(P<0.05);compared with before ~(131)I treatment,the 15 min UI of the bilateral parotid glands and bilateral submandibular glands of the patients in citric acid group had no significant differences(P>0.05).Compared with control group,the 15 min UI of bilateral parotid glands and bilateral submandibular glands of the patients in citric acid group before and after treatment had no significant differences(P>0.05).Compared with before ~(131)I treatment,the SR of bilateral parotid glands of the patients in control group after treatment were decreased(P<0.05),and there were no differences in the SR of bilateral submaxillary glands after treatment(P>0.05).Compared with before ~(131)I treatment,the SR of bilateral parotid glands and bilateral submandibular glands of the patients in citric group after treatment had no significant differences(P>0.05).The SR of bilateral parotid glands of the patients in citric acid group after treatment were higher than those in control group(P<0.05),but there were no significant differences in the SR of bilateral submandibular glands of the patients between two groups after treatment(P>0.05).Conclusion:First ~(131)I treatment may cause the damage of the secretion function of the salivary glands in the DTC patients after operation.Short-term administration of citric acid in the mouth can protect the salivary glands and alleviate the radioactive injury of the salivary glands.
引文
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