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Biomedical subjects

M Odaka

Publications and source records attributed to M Odaka.

At least 109 records · Page 6Linked to original sources

[Nutritional management of patients with cirrhosis after hepatectomy].

Nutritional management for the patients with cirrhosis after hepatectomy was studied. Based on the experimental results, 1-1.5g/kg/day of branched chain amino acid (BCAA) enriched solution with 30 kcal/kg/day of glucone was given to the cirrhotic patients after hepatectomy for 10-14 days. Sodium and total fluid volume were strictly restricted. Elemental diet for liver failure (ED-H) was started to give within 7 days after surgery for 6-21 days. High relationships were observed between preoperative nutritional status such as prealbumin and retinol binding protein (RBP) and incidence of postoperative complications, suggesting that postoperative nutritional supply was very important. Changes of albumin, hepaplastin test and prothrombin time were rather good and the BCAA to aromatic amino acids molar ratio was maintained high when nutritional management was performed. Overall one and two year survival rates were 74% (20/27) and 36% (5/14), respectively. No significant difference was seen between the prognoses of the patients with and without liver dysfunction. Immediate postoperative nutritional management must be essential to get over critical stage safely and long-term nutritional supply may be necessary to get better prognosis.

Hepatectomy↗

[The role of radiotherapy in the management of cancer of digestive organs: the liver, bile tract and pancreas].

Until February 1984, 75 patients have undergone radiotherapy using the following two methods: 1. During surgery, electron 3000 rads were given. 2. For external irradiation, X-ray or fast neutron was given with a TDF (time dose and fractionation factor) of 80-110. Hepatocellular carcinoma: There were 14 patients including 6 preoperative irradiation and 8 unresectable cases. Improvements were obtained image diagnostically in 9 of 13 patients. Serum AFP level decreased in 6 of 8 patients. And the resected specimens revealed degeneration or necrosis of the cancer tissue. Radiotherapy can given beneficial effect to the patients with tumor emboli within the portal vein, or even disappearance of the tumor emboli sometimes could be seen. Bile duct carcinoma: There were 30 patients including 12 with intraoperative irradiation. 2 irradiated during surgery and external irradiation, and 16 with external irradiation. More than 1-year survivals observed in 6 of 18 unresectable cases. The longest survival of non-curative operation was 6.5 years with treatment. Pancreas carcinoma: There were 31 patients including 29 unresectable and 2 resectable cases. Prolongation of survival time in unresectable patients was not obtained with an interval of 5 months at 50% survival rate. But some clinical complaints were relieved. We concluded that radiotherapy is useful to improve surgical curability by decreasing the cancer cell viability, to give a wider surgical indication if portal tumor emboli can be eliminated, to prevent early tumor recurrence, and to give some beneficial effects to unresectable or recurrent patients.

Adult↗

[The role of endoscopic lithotomy in the treatment of intrahepatic stones].

Although hepatolithiasis is a benign disease, its treatment is still the most difficult one in medical field. Before 1977, we had tried bilioenterostomy at the porta hepatis to expect spontaneous dislodgement of stones. However their results were very poor because of frequent occurrence of cholangitis which leads to hepatic failure or death in 8 of 15 patients. From 1977 to 1981, 35 patients had undergone postoperative cholangioscopy (POC). Complete stone removal was obtained in 24 patients. There were 13 difficult local problems in the remaining 11 patients including 6 being too narrow to permit the passage of the fiberscope, 3 having stones incarcerated, 3 having abnormal distribution of biliary tract and one being a missed stone. From 1981, we have carried out percutaneous transhepatic cholangioscopic lithotomy (PTCL) for the treatment of intrahepatic stones in 16 patients. Because abnormal distribution of biliary tract can be easily detected by PTC and incarcerated stones can be made into small pieces before removal following LASER application. We had succeeded in complete stone removal in 12 patients. 2 patients needed biliary reconstruction or liver resection after PTCL. We concluded that for treatment of the disease of intrahepatic stone PTCL should be considered as the first choice before surgery in order to avoid unnecessary hepatic resection or biliary reconstruction.

Adult↗

Experimental and clinical study on ATP-MgCl2 administration for postischemic acute renal failure.

The present study was undertaken to investigate the effect of ATP-MgCl2 on the recovery of renal function following renal ischemia. Bilateral renal ischemia was produced for 90 minutes in dogs. Immediately after the release of ischemia, ATP-MgCl2 (50 mumoles/kg) was given intravenously. Serum creatinine and FeNa were measured following the release of ischemia. Renal cellular energy charge, glomerular endothelial thickness and per cent circularity of interstitial cells were measured. Creatinine and FeNa were significantly lower in ATP-MgCl2 treated dogs compared to those in saline treated controls. Changes in energy charge, glomerular endothelial thickness and per cent circularity indicated ischemically induced renal cellular edema was reversed with ATP-MgCl2 through the improvement of energy metabolism. Taking those experimental data into consideration, ATP-MgCl2 was given to 16 acute renal failure patients and 13 patients survived. ATP-MgCl2 administration is effective for the treatment of acute renal failure.

Acute Kidney Injury↗

Improved survival and reticuloendothelial function with intravenous ATP-MgCl2 following hemorrhagic shock.

There is controversy concerning the efficacy of ATP-MgCl2 in improving survival following hemorrhagic shock. To resolve this issue, the effect of ATP-MgCl2 infusion on survival following shock was reinvestigated. Rats were bled to and maintained at a mean arterial blood pressure of 40 mmHg for 90 min. Following reinfusion of the remaining shed blood, the animals were treated with ATP-MgCl2 (25 mumoles each) or saline. Survival was measured in one group of animals, and in another group of animals reticuloendothelial (RE) function was determined with 131I gelatinized test lipid emulsion in search of the mechanism of the beneficial effect of ATP-MgCl2 following hemorrhagic shock. The results indicate that survival was significantly improved if the animals were treated with ATP-MgCl2 following hemorrhagic shock. In addition, RE function, which was markedly depressed following hemorrhagic shock, was significantly improved by ATP-MgCl2 treatment, indicating that the beneficial effect of ATP-MgCl2 for hemorrhagic shock could be through the improvement of RE function.

Adenosine Triphosphate↗

A cooperative study of sarcoidosis in Asia and Africa: analytic epidemiology.

The characteristics of about 2,000 Japanese sarcoidosis cases collected by the Japan Sarcoidosis Committee during the 10-yr period, 1963-1972, were chronological increase with decreasing infectious diseases (represented by tuberculosis), north-to-south decline in sarcoidosis incidence in accordance with the Oxford Atlas Seasonal Climates, the age of cases shifting to the younger group in areas of high incidence, a local outbreak, and familial aggreagations. These results led the authors to an hypothesis that sarcoidosis is a disease induced by an infective agent or agents, prevalent in cold places, becoming influential in association with ecological changes, and affecting persons with predispositions.

Adolescent↗