Gastric Emptying in Patients with Diabetes: Gastric Emptying Time, Retention Rate and Effect of Cisapride

당뇨병 환자의 위배출능 : 위배출시간, 위저류율 및 Cisapride의 영향

Gastic emptying scan in diabetic patients is widely used to assess the degree of motility disturbance and the symtoms such as nausea, vomiting, bloating, abdominal pain and early gastric fullness which we can't find anatomic lesion by fiberoscopic or barium study In order to determine the relationship among diabetic gastropathy, neropathy, retinopathy and disease duration, gastric emptying scan using $^{99m}Tc-tin$ colloid labeled scramble egg in hamburger was performed in 10 healty male controls and 50 diabetic patients which were subdivided to no neuropathy, peripheral neuropathy and autonomic neuropathy groups according to the degree of diabetic neuropathy and no retinopathy, background retinopathy and proliferative retinopathy groups according to the degree of diabetic retinopathy. After medication of cisapride for 2 weeks, we observed the presence of improvement of gastric motility in diabetics. The results were as following: 1) In controls, gastric emptying time (GET1/2) was $75{\pm}13.6$ min and 2 hour gastric retension rate (GRR2) was $32{\pm}11.1%$. 2) In diabetics, GET/2 was prolonged more than 2 hours and GRR2 was $58{\pm}23.1%$. According to degree of neuropathy, GET1/2 was prolonged more than 2 hours in all three groups and GRR2 was $54{\pm}24.1%$ in no neuropathy group, $57{\pm}24.3%$ in peripheral neuropathy group and $69{\pm}24.6%$ in autonomic neuropathy group. According to degree of retinopathy, GET1/2 was $110{\pm}23.4$ min in no retinopathy group and prolonged more than 2 hours in other two groups and GRR2 was $45{\pm}21.6%$ in no retinopathy group, $71{\pm}19.7%$ in background retinopathy group and $73{\pm}21.5%$ in proliferative retinopathy group. 3) After cisapride medication for 2 weeks, GET1/2 and GRR2 were improved as $90{\pm}14.6$ min and $40{\pm}13.8%$ (initial GET1/2 and GRR2 were above 2 hours and $61{\pm}15.4%$). We can conclude from above findings that gastropathy in diabetic neuropathy suggesting main underlying factor in motility disorder The degree of retinopathy and disease duration were correlated with severity of gastropathy in diabetics. From the results of gastric emptying scan, we can conclude that cisapride was useful drug for improving diabetic gastropathy and gastric emptying scan was valuable for assessing severity of diabetic gastropathy as non-invasive method.

당뇨병 환자에서 $^{99m}Tc-colloid$ labeled scrambled egg와 hamberger를 이용한 고형식의 위배출 양상의 변화를 동위원소를 이용하여 고찰한 결과 당뇨병성 신경증의 정도, 특히 자율신경계 침습 유무, 이환기간 및 망막증의 정도와 관련이 있었고 혈당농도 및 조절상태와는 무관한 것으로 나타나 당뇨병 환자에서 신경장애가 심할수록 이환기간이 길수록 위장운동 장애가 심한 것을 나타내있다. 당뇨병성 위마비증도 자율신경계 침습이 있는 경우에 잘 발생하였고 Cisapride는 당뇨병 환자의 위 배출시간 및 위저류율을 호전시켰다. $^{99m}Tc-colloid$ labeled scrambled egg와 hamberger를 이용한 고형식의 핵의학적 정사 방법은 barium을 이용한 방사선학적 청사보다 정량화하기 쉽고 생리 식염수 부하검사보다 비침습적이며 당뇨병 환자의 실재 일회 식사량과 비슷한 500kCal의 열량으로 임상상을 잘 반영한다고 사료된다.