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鼻淚管閃爍攝影術對下淚小管裂傷術後的評估
Evaluation of the Repaired Inferior Canalicular Laceration with Dacryoscintigraphy
摘要
搜集10往單側下淚小管撕裂傷經手術修補複解剖上通暢，且功能上無臨床溢淚症狀病人，以鼻淚管閃爍攝影術比較患側眼與正常眼的比例排出率，發現在淚液排泄第一階段（前2至5分鐘，反射性泌淚期）有顯著的差異，第二階段（7.5至15分鐘，基礎性泌淚期）則沒有差異性。顯示淚小管經修補雖仍通暢，臨床亦沒有溢淚症狀，但在生理功能上，反射性泌淚期之淚液排空仍然有明顯差異，在基礎性泌淚期則沒有差異。
關鍵字
無資料並列摘要
Ten cases of canalicular laceration had been successfully repaired. Dacryoscintigraphy was employed to evaluate their excretory function. Ten microlitre of 150-70 uCi Tc(superscript 99m) pertechnetate was simultaneously instilled onto each lower temporal marginal strip, and duration of twenty minutes of dynamic images were displayed and stored in a computer syystem. Comparing the fraction turnover rates between the lesion eye and the normal eye, we find significant difference in the initial phase of tear drainage (the first 2-5 minutes, representing reflex tearing phase), and insignificant difference in the second phase (the following 7.5-15 minutes, representing basal tearing phase). Our study shows although the repaired canaliculi were anatomically patent and the patients were free from symptomatic epiphora, there still is significant change of tear clearance in the reflex tearing phases.
延伸閱讀
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