PubMed Health⌕ Search

Biomedical subjects

M Uekusa

Publications and source records attributed to M Uekusa.

10 recordsLinked to original sources

Carcinoma of the proximal bile ducts.

The records of 31 patients with carcinoma of the proximal bile ducts were reviewed and the operative procedures, results, causes of deaths and autopsy findings were analyzed and correlated. Ten poor risk patients were treated by external drainage and died of jaundice or abscesses of the liver within six months. However, one patient survived 13 months after effective bilateral drainage. Twelve patients underwent intubation through the tumor into the hepatic ducts with or without postoperative irradiation. Four patients with irradiation survived 42, 15, 15 and ten months, while eight patients without irradiation died within six months. Autopsy findings of two patients who survived 15 months revealed metastases to the various organs. Four patients underwent resection. A patient who underwent resection of the common hepatic duct and hepaticoduodenostomy died of ascending cholangitis nine months postoperatively, while a patient treated by resection of the common hepatic duct with hepaticojejunostomy died of a recurrence 25 months postoperatively. Two patients underwent left hepatic lobectomy and resection of the right hepatic duct followed by hepatojejunostomy. One patient survived 25 months and died of a reccurrence, while the other patient died of abscesses of the liver ten months postoperatively.

Adenocarcinoma↗

Intraoperative measurement of the bile flow resistance in the terminal portion of the common bile duct and its clinical significance in biliary surgery.

A practical method, safe and relatively simple to perform, which we have developed for the intra-operative measurement of the resistance to bile flow in the terminal portion of the common bile duct is described. This method performed routinely in conjuction with the operative cholangiography in the operating room, proved to be a powerful diagnostic acid for detecting abnormalities in the terminal portion of the common bile duct. In gallstone disease, the results by this method were compared with the operative results. It was found that minimal organic changes or functional disturbances in the terminal portion of the common bile duct, even those without jaundice, can be detected, and unnecessary choledochotomy or sphincteroplasty avoided. This method has a further advantage in that it gives universality to the resistance R and the residual pressure P as quantitative discriptive indices for the qualitative state of bile flow in the terminal portion of the common bile duct, and, if adopted as a standard and routine method, should make the comparison of works by different investigators easier and more significant.

Bile↗