Seven years ago, we began the “Toride Project” which aimed at organized care, mainly on based a low-protein diet (LPD), for chronic renal failure patients. This project cumulatively involved 486 patients, and 219 of them have been followed up at our hospital.
In this paper, we report the 12 patients who had before shown progressive deterioration of renal function and turned out stable (less than 5% change) in creatinine clearance (Ccr) for 12-54 months after involved in the project. Their diseases were chronic glomerulonephritis (CGN; 10 cases) and nephrosclerosis (NSC; 2 cases), and the mean Ccr was 20.9±1.3 (SE) ml/min (16-32 ml/min). All of them carried out the well maintained LPD (0.62±0.02 g/kg/day), and showed relatively low urinary protein excretion (UPE; 0.4±0.2g/day). In contrast, 10 other cases (CGN; 9, NSC; 1) showed persistent deterioratiom of renal function even if they continued the LPD (0.60±0.02 g/kg/day). They significantly showed higher UPE (1.6±0.3 g/day, p<0.05) than the 12 cases mentioned above. Moreover, frequent examination revealed that the day-to-day change in their protein intake was more widely distributed (coefficient of variation; 19.5±1.3% vs 10.8±0.6%, p<0.05).

We did a retrospective review of 83 femoropopliteal bypasses with grafting of saphenous vein performed for two groups of limbs: those with arteriosclerosis obliterans (n=71) and thromboangiitis obliterans (n=12) over the past 15 years. The purpose of the study is to assess factors that influence long-term graft patency. We also examined methods used for reoperation. After a mean follow-up of 35 months (ranges, 1-164), the cumulative patency rate was 79% at 5 years and again 79% at 8 years, which was better than the patency of PTFE grafts or other prosthetics reported by other authors. The two groups were compared for the severity of ischemia, condition of the outflow tract, and whether anastomosis was above or below the knee. These factors were different between the two groups, but the difference in patency was statistically not significant. Two reoperations for claudication were needed. One was carried out with use of the bilateral saphenous veins from below the portions used earlier. The other was done for obstruction of a PTFE graft; anastomosis was done at the mid portion with the use of Vitagraft.