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Biomedical subjects

L B Jeng

Publications and source records attributed to L B Jeng.

At least 19 recordsLinked to original sources

Influence of age on results of resection of hepatocellular carcinoma.

One hundred and fifty-eight elective hepatectomies carried out between 1976 and 1989 for hepatocellular carcinoma were classified into three groups according to age: group I (n = 20) under 30 years of age; group II (n = 102) 30 to 60; and group III (n = 36) over 60. The number of operations carried out on patients in group III has increased since 1983, and the types of hepatic resection in the three different age groups were slightly but not significantly different. The incidence of small tumours (diameter less than 5 cm) and associated cirrhosis were relatively low in the younger patients. Postoperative complications developed in 4 patients (20%) in group I, 18 (18%) in group II and 8 (22%) in group III, the main ones being hepatic failure and intraabdominal sepsis. Operative mortality was 4%; one patient (5%) died in group I, 4 (4%) in group II, and 2 (6%) in group III, and the principal causes were hepatic failure and massive haemorrhage. Hepatic resection for hepatocellular carcinoma in most patients over 60 years old was associated with slightly higher operative morbidity and mortality, but the risks were such that we recommend that operation should not be denied to selected patients in this age group.

Adult

Pre-operative localization of parathyroid tumor by ultrasonography.

From July 1984 to June 1989, 24 cases with hypercalcemia and surgical proof of parathyroid adenoma or carcinoma received preoperative parathyroid sonographic examination in Chang Gung Memorial Hospital. There were 10 male patients with mean age of 51.5 +/- 12.3, and 14 female patients with mean age of 49.4 +/- 12.6. Parathyroid enlargement was detected by sonography examination in 22 of the 24 cases. The maximal diameter of the enlarged parathyroid in this series ranged from 1 cm to 3 cm. The accuracy of case diagnosis with sonography is 83.3%. In 96 parathyroid glands examined by sonography, the sensitivity is 83.3%, the specificity is 95.8% and the positive predictive value is 87%. From the results, it suggests that parathyroid sonography can be used as the first line localization method to detect parathyroid enlargement in hypercalcemia patients.

Adenoma

Clinical experience in 20 hepatic resections for peripheral cholangiocarcinoma.

During the 10-year period from 1978 to 1987, hepatic resections were performed on 20 patients with peripheral cholangiocarcinoma (PCC). Nine of these patients were men and 11 were women (mean age, 48.5 years). Among them, 80% had intrahepatic stones with recurrent cholangitis. The 20 patients were subdivided into the following three groups: Group I (12 patients with surgery for PCC); Group II (4 patients with surgery for chronic cholangitis [but the final pathologic diagnosis confirmed PCC]); and Group III (4 patients with surgery for space-occupying liver lesions). No early postoperative mortality was noticed. The few complications that occurred were related to surgery for hepatolithiasis. Postoperative wound infection was the most common complication. The overall mean survival time was 20.5 months. Four patients survived for more than 3 years; one was even alive for more than 5 years after surgery.

Adenoma, Bile Duct

[The treatment of esophagojejunal anastomotic stricture after total gastrectomy].

From December 1983 through December 1988, 200 cases of total gastrectomy were performed in Chang Gung Memorial Hospital. The esophagojejunostomy was performed with EEA staplers in 196 cases, and with hand suture in 4 cases. Twelve cases developed anastomotic stricture after the operation. All of these 12 anastomoses were done with EEA 28 mm staplers. Four of the 12 patients received no further treatment either because the symptoms were mild or because of development of carcinomatosis. Six patients received endoscopic YAG laser treatment, only 2 had good results. Four Patients received balloon dilatation, 2 of them had good results, 4 patients received surgical intervention after failure of the balloon dilatation or YAG laser treatment. Of the 4 patients who underwent surgery, the thoracoabdominal approach was used in 3, and a thoracotomy in 1. Three patients received side to side esophagojejunostomy to bypass the stricture site. In the remaining patient, stricture was excised and a new end to end anastomosis was done with hand sutures. All of these 4 patients had good results after the operation. There are many possible mechanisms of the development of anastomotic stricture. Anastomotic leakage, technical error, lack of mucosa-to-mucosa apposition, size of the EEA stapler and tissue ischemia all have been regarded as the possible causes of anastomotic stricture. Once the esophagojejunal anastomosis stricture occurs, treatment should be done to relieve dysphagia. From the results of our patients, endoscopic YAG laser is not a satisfactory treatment for anastomotic stricture.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult

Hepatic resection in 120 patients with hepatocellular carcinoma.

During the 11-year period from 1977 through 1987, hepatic resections were carried out in 120 patients with hepatocellular carcinoma (HCC). Twenty-five had HCCs smaller than 5 cm in diameter. There were 97 male and 23 female patients, with an average age of 51.5 years. Among them, 45.8% had liver cirrhosis and 80.8% were positive for hepatitis B surface antigen. Fourteen with ruptured HCCs underwent hepatic resection to control the intra-abdominal hemorrhage. Operative mortality within one month after surgery was 4.1%. The postoperative course was complicated by pleural effusion in 5.8%, subphrenic abscess in 2.5%, postoperative bleeding in 1.6%, hepatic failure in 1.6%, and bile leakage in 0.8% of the patients. The overall five-year survival rate in this series was 25.9%, while survival for the last five years was better (42.3% vs 11.9% for patients treated between 1977 and 1982). The cumulative survival rate had no relation to tumor rupture or liver cirrhosis. The group of patients with smaller tumors (diameter, less than 5 cm) or without vascular invasion by tumor had better survival.

Adolescent

Intrahepatic stones associated with cholangiocarcinoma.

Twenty cases of cholangiocarcinoma associated with hepatolithiasis were treated surgically. The incidence of cholangiocarcinoma associated with hepatolithiasis was 2.4%. Surgical procedures included common bile duct exploration after intraoperative choledochofiberoscopy in 20, with hepatic resection in nine. Overall survival was 8 months, with a range of 3-40 months. The hepatectomy group seemed to have a better prognosis. Accurate preoperative diagnosis of intrahepatic bile duct carcinoma associated with intrahepatic stones is difficult. All 20 patients in this series had surgery for recurrent cholangitis due to intrahepatic stones. From a retrospective review, it became apparent that early diagnosis can be obtained from the following: 1) detection of a hyperechoic mass in the liver parenchyma during abdominal ultrasonography, 2) a scintigraphic defect near the hilum, 3) filling defects or obliteration of intrahepatic ducts in ERCP or PTC, 4) gross appearance of the liver during surgery revealed a nodular tumor mass or an atrophic, fibrotic liver, and 5) intraoperative choledochoscopic findings which showed an intraluminal tumor or infiltrative lesion.

Adenoma, Bile Duct

Surgical treatment for spontaneous rupture of hepatocellular carcinoma.

Twenty-seven patients with spontaneous rupture of hepatocellular carcinoma (HCC) underwent surgical treatment during the past ten years. The indications for emergent laparotomy were hemoperitoneum in 14 and unspecified peritonitis in 13. Twelve were found to have noncirrhotic HCC. The incidence of associated cirrhosis was 55.56 per cent. Surgical procedures included hepatic resection in 14, hepatic arterial ligation in six and packing, suture and electrocauterization in seven. Seven died within one month postoperatively, a surgical mortality rate of 28 per cent. Recently, palliative resection has been used more frequently. The group of patients who underwent resection have a better prognosis.

Adolescent

Use of fiberoptic choledochoscope in common bile duct and intrahepatic duct exploration.

This report summarizes our experience with 339 consecutive flexible fiberoptic choledochoscopic examinations performed in the course of 598 common bile duct explorations for biliary tract stones. Routine choledochoscopy added 5 to 10 minutes to the operation and caused no complications. In 81 of the patients, additional stones were discovered with choledochofiberscopy after completion of routine bile duct exploration. Postoperative cholangiography demonstrated a retained stone in 57 patients (two in the common bile duct and 55 in the intrahepatic ducts). Forty-two patients with stones retained in the intrahepatic ducts were diagnosed during operation with the fiberoptic choledochoscope, but those stones were very difficult for us to remove. The accuracy of postexploratory choledochoscopy in diagnosis of stones in the common bile duct and intrahepatic ducts was 99.0% and 90.5%, respectively. Choledochofiberscopy is useful in exploration of the common bile duct and a safe procedure in the diagnosis of biliary tract stones during operation.

Bile Ducts, Intrahepatic