Gupta S C, Singla Alok, Singh Mangal, Thaliath B Paul, Geeta Jaiswal
Department of ENT and Head and Neck Surgery, M.L.N. Medical College, Allahabad, 211001 UP India.
Indian J Otolaryngol Head Neck Surg. 2009 Dec;61(4):286-90. doi: 10.1007/s12070-009-0084-7. Epub 2010 Jan 9.
To determine the effects of high dose irradiation on parotid salivary sodium and pH concentration at subsequent duration of 1.5, 3 and 6 months following radiotherapy.
Eighty parotid glands of head and neck cancer patients were irradiated with mean dose of 66 Gy. The stimulated parotid flow (PF) was collected by a cannulation of Stenson's duct followed by analysis of sodium (PF sodium) by Easylyte Sodium/Potassium auto analyzer and pH by litmus narrow band pH paper.
A steep elevation of PF sodium was found in post-RT period after 1.5 months of starting RT followed by gradual increase up to 6 months and pH changed towards acidity.
A high dose of 66 Gy causes irreversible damage to parotid salivary duct system.
确定高剂量辐射对放疗后1.5、3和6个月后续时间段腮腺唾液钠浓度和pH值的影响。
对头颈部癌患者的80个腮腺进行平均剂量为66 Gy的照射。通过斯滕森导管插管收集刺激后的腮腺流量(PF),随后使用Easylyte钠/钾自动分析仪分析钠(PF钠),并用石蕊窄带pH试纸分析pH值。
在开始放疗1.5个月后的放疗后时期,PF钠急剧升高,随后逐渐升高直至6个月,且pH值向酸性变化。
66 Gy的高剂量对腮腺唾液导管系统造成不可逆损伤。