PURPOSE: The aim of this prospective, randomized study was to evaluate the effects and adverse effects of nebulized L-epinephrine compared with nebulized budesonide in children with moderate to severe croup. METHODS: Children were eligible for the study if their croup scores fell in the moderate to severe range(scores>4) in the AMC from May 1995 till May 1996. The patients were randomly assigned to receive either 5ml(1 : 1000) of L-epinephrine aerosols(n=9) or 500microgram of budesonide aerosols (n=8). Croup score, O2 saturation by pulse oximeter, heart rate, and blood pressure were recorded before treatment and at 5, 15, 30, 60, 120 minutes after aerosol treatment. Nine patients were enrolled in the nebulized L-epinephrine group and 8 in the nebulized budesonide group, respectively. There were no statistical differences in age, sex and croup score before treatment between the two groups. RESULTS: Total croup score significantly decreased at 15 minutes after treatment in the L-epinephrine group(P<0.05) but at 120 minutes after treatment in the budesonide group(P<0.05). Treatment failed in 1(1/9) patient in the L-epinephrine group and 2(2/8) patients in the budesonide group, who received intramuscular dexamethasone injections. The rebound phenomenon at 120 minutes after treatment was found in 1 patient from both groups. There were no significant changes of heart rate and blood pressure before and after treatment in both groups. CONCLUSION: The treatment using nebulized L-epinephrine showed a more prompt clinical improvement than the treatment using nebulized budesonide and without any significant adverse effects. So it can be recommended for emergent management in children with moderate to severe croup.
Aerosols* ; Blood Pressure ; Budesonide* ; Child ; Croup* ; Dexamethasone ; Heart Rate ; Humans ; Prospective Studies*

PURPOSE: The aim of this prospective, randomized study was to evaluate the effects and adverse effects of nebulized L-epinephrine compared with nebulized budesonide in children with moderate to severe croup. METHODS: Children were eligible for the study if their croup scores fell in the moderate to severe range(scores>4) in the AMC from May 1995 till May 1996. The patients were randomly assigned to receive either 5ml(1 : 1000) of L-epinephrine aerosols(n=9) or 500microgram of budesonide aerosols (n=8). Croup score, O2 saturation by pulse oximeter, heart rate, and blood pressure were recorded before treatment and at 5, 15, 30, 60, 120 minutes after aerosol treatment. Nine patients were enrolled in the nebulized L-epinephrine group and 8 in the nebulized budesonide group, respectively. There were no statistical differences in age, sex and croup score before treatment between the two groups. RESULTS: Total croup score significantly decreased at 15 minutes after treatment in the L-epinephrine group(P<0.05) but at 120 minutes after treatment in the budesonide group(P<0.05). Treatment failed in 1(1/9) patient in the L-epinephrine group and 2(2/8) patients in the budesonide group, who received intramuscular dexamethasone injections. The rebound phenomenon at 120 minutes after treatment was found in 1 patient from both groups. There were no significant changes of heart rate and blood pressure before and after treatment in both groups. CONCLUSION: The treatment using nebulized L-epinephrine showed a more prompt clinical improvement than the treatment using nebulized budesonide and without any significant adverse effects. So it can be recommended for emergent management in children with moderate to severe croup.
Aerosols* ; Blood Pressure ; Budesonide* ; Child ; Croup* ; Dexamethasone ; Heart Rate ; Humans ; Prospective Studies*

BACKGROUNDS/AIMS: This study is intended to investigate the clinicopathological features of the intraductal papillary neoplasms of the intrahepatic bile duct (IPNB), especially focused on malignant changes. METHODS: From the institutional database of liver resection cases (Asan Medical Center, University of Ulsan College of Medicine), 18 patients who met the definition of IPNB were selected. They had undergone liver resection between February 2002 and October 2006; thus, the follow-up period was more than 5 years. RESULTS: Of the 18 patients, 11 patients were male. Their mean age was 61.3+/-6.7 years. There were no differences between the non-malignant and malignant lesions, in the comparison of the CEA levels (5.6+/-2.7 vs.12.6+/-31.1 ng/ml, p=0.439) and the CA19-9 levels (29.2+/-34.7 vs.31.9+/-30.2 ng/ml, p=0.871). The common radiologic findings were: intraductal growing mass in 10; bile duct dilatation in 6; and saccular duct dilatation in 2. Left and right hepatectomies were performed in 15 and 3, respectively. Five patients showed benign lesions of IPNB, and 13 patients revealed malignant lesions of intraductal papillary adnocarcinoma or cholangiocarcinoma. All 4 patients with benign lesions survived for a mean period of 53 months without recurrence. In 13 patients with the malignant lesions, 1-year, 3-year, and 5-year survival rates were 100%, 84.6%, and 59.2%, respectively. CONCLUSIONS: We concluded that intrahepatic IPNB is a rare type of biliary neoplasm which includes a histological spectrum, ranging from benign disease to invasive malignancy. The long-term survival was anticipated after complete curative resection.
Academic Medical Centers ; Bile Ducts ; Bile Ducts, Intrahepatic ; Cholangiocarcinoma ; Dilatation ; Follow-Up Studies ; Hepatectomy ; Humans ; Liver ; Male ; Recurrence ; Survival Rate

PURPOSE: When performing donor screening for living donor liver transplantation (LDLT) for an adult patient with end- stage liver disease, ABO blood group incompatibility is the most common cause of donor exclusion. To cope with this problem without performing ABO-incompatible LDLT, living donor exchange program has been maintained at the Asan Medical Center, Seoul, Korea since September 2003. Here we introduce the clinical experience of 6 cases of adult LDLT allocated by living donor exchange program. METHODS: From February, 1997 to December 2006. 1208 cases of adult LDLT were performed in our institution. Among them, there were 6 cases allocating through donor exchange program to avoid ABO blood group mismatching. Three sets of 2 donor-recipient combination pairs were made after direct one-to-one donor-recipient matching. RESULTS: Two sets of donor exchange LDLT were performed on elective surgery basis, but one in emergency situation. Two living donors and 2 recipients underwent LDLT operations at the same time at the same institution. All 6 living donors recovered well. All of the 6 recipients are doing well to date although 1 recipient had undergone prolonged intensive care for surgical complications. There was no emotional or psychological conflict related to donor exchange program. CONCLUSION: This is the world-first report on donor exchange adult LDLT. Although this is a preliminary report with only 3 sets, donor exchange program for adult LDLT appears to be a feasible modality to promote LDLT. We believe it can be applicable to a wider population of LDLT after widespread consensus formation.
Adult ; Blood Group Incompatibility ; Critical Care ; Consensus ; Donor Selection ; Emergencies ; Humans ; Korea ; Liver ; Liver Diseases ; Liver Transplantation ; Living Donors ; Phosphatidylethanolamines ; Tissue Donors

BACKGROUNDS/AIMS: Gallbladder carcinoma (GBCa) T2 lesions are considered to be advanced tumors showing diverse features in tumor extent. When this T2 lesion does not involve the cystic duct and there is no evidence of lymph node metastasis, we have to consider what is the most reasonable extent of resection - that is, whether to perform concurrent extra-hepatic bile duct resection (EHBD) resection or not. This study intends to evaluate the adequacy of EHBD resection in patients undergoing resection for T2N0 GBCa. METHODS: From our institutional database of GBCa, 48 cases of T2N0 GBCa who underwent R0 resection during November 1995 and August 2008 were selected. Patients who underwent prior laparoscopic cholecystectomy were excluded. Their medical records were reviewed retrospectively. RESULTS: Their mean age was 63.2+/-83.3 years and females were 25. The mean serum CA19-9 level was 37.3+/-89.3 ng/ml. The extents of liver resection were wedge resection (n=36) and segment 4a+5 resection (n=12). Concurrent EHBD resection was performed in 16 (33.3%) patients. No fatal surgical complication occurred. The majority of tumor pathology was adenocarcinoma (n=42), with additional unusual types as papillary (n=3), saromatoid (n=1), signet ring cell (n=1) and adenosquamous (n=1) cancers. The overall survival rate was 87.1% at 1 year, 69.5% at 3 years and 61.7% at 5 years. After exclusion of mortalities not related to cancer, the overall patient survival rate was 89.6% at 1 year, 72.9% at 3 years and 64.7% at 5 years, with 3-year survival rates of 72% in the EHBD resection group and 69.2% in the non-resection group (p=0.661). CONCLUSIONS: The results of this study indicate that concurrent EHBD resection did not improve patient survival when R0 resection was achieved in patients with T2N0 GBCa. Therefore, routine EHBD resection may not be indicated for T2N0 GBCa unless the tumor is close to the cystic duct.
Adenocarcinoma ; Bile Ducts ; Bile Ducts, Extrahepatic ; Cholecystectomy, Laparoscopic ; Cystic Duct ; Female ; Gallbladder ; Humans ; Liver ; Lymph Nodes ; Medical Records ; Neoplasm Metastasis ; Recurrence ; Survival Rate

The wall of normal proximal bile duct is occasionally thin with close approximation to the right hepatic artery. Thus, isolation of this hepatic artery can result in excessive weakening of the remnant proximal bile duct wall during hemiliver graft harvest. This type of injury can induce ischemic stricture of the donor common bile duct. This study aimed to review the clinical sequences of such ischemic type donor bile duct injuries primarily managed with endoscopic and radiological interventional treatments. A retrospective review of medical records was performed for two living donors who suffered from ischemic type donor bile duct injury. They were followed up for more than 10 years. The right and left liver grafts were harvested from these two donors. Bile duct anatomy was normal bifurcation in one and anomalous branching in the other. Bile duct stenosis was detected in them at 2 weeks and 1 week after liver donation. They underwent endoscopic balloon dilatation and temporary stent (endoscopic retrograde biliary drainage tube) insertion. After keeping the tube for 2 months, the tube was successfully removed in one donor. However, endoscopic treatment was not successful, thus additional radiological intervention was necessary in the other donor. On follow-up over 10 years, they are doing well so far with no recurrence of biliary stricture. Based on our limited experience, interventional treatment with subsequent long-term follow-up appears to be an essential and choice treatment for ischemic type biliary stricture occurring in liver living donors.
Bile Ducts ; Common Bile Duct ; Constriction, Pathologic* ; Dilatation ; Drainage ; Follow-Up Studies ; Hepatic Artery ; Humans ; Ischemia ; Liver* ; Living Donors* ; Medical Records ; Recurrence ; Retrospective Studies ; Stents ; Tissue Donors ; Transplants

BACKGROUNDS/AIMS: Laparoscopic cholecystectomy (LC) has become a standard procedure for treatment of benign gallbladder diseases. There has been a small proportion of gallbladder cancer (GBC) which was incidentally found in the gallbladder specimen, and LC has been tried in some patients with faintly suspected GBC. This study intended to analyze the prognosis of patients with pT1b/T2 GBC who have undergone LC and the outcome of extended re-operation. METHODS: After analyzing the institutional profiles of 500 GBC patients who have undergone surgical resection, we selected 64 patients who underwent LC initially from January 1996 to December 2008 and whose gallbladder pathology was confined to pT1b or pT2 lesions. Of them, 34 patients (53.1%) underwent extended reoperation. Their medical records were reviewed retrospectively. RESULTS: In the LC only group (n=30), mean age of the 16 pT1 patients was 65.7+/-12.5 years and mean age of the 14 pT2 patients was 66.7+/-10.1 years. In the reoperation group (n=34), mean age of the 8 pT1b patients was 52.6+/-9.9 years and in 26 pT2 patients, mean age was 59.2+/-7.9 years. The reoperation group showed a younger patient age pattern than the LC only group (p=0.001). The types of reoperation were liver resection with lymph node (LN) dissection in 17, bile duct resection with LN dissection in 2, and hepatectomy and bile duct resection with LN dissection in 15. In the LC only group, the 5-year survival rate (5-YSR) was 70.3% in pT1b and 43.2% in pT2. In the reoperation group, 5-YSR was 62.5% in pT1b (n=8) and 59.5% in pT2 (n=26). A survival comparison between the two groups showed no significant survival gain in pT1 patients (p=0.69) and in pT2 patients (p=0.14). In our whole database analysis, 5-YSR of pT1bNx lesions was 70% after cholecystectomy and 78% after extended cholecystectomy. Lymph node metastasis was identified in 11% of pT1b lesions. For pT2N0 lesions, overall 5-YSR was 62% after R0 resection, showing no survival difference between primary extended surgery and LC-redo operation (p=0.45). CONCLUSIONS: The survival gain of reoperation was not evident in pT1b lesions. In contrast, some noticeable but not statistically significant survival difference was observed in pT2 lesions. Thus, reoperation for pT1b/T2 GBC following LC is indicated for individualized reasons, especially in patients with pT1b lesions. Old age was one of the important factors in deciding not to reoperate.
Bile Ducts ; Cholecystectomy ; Cholecystectomy, Laparoscopic ; Gallbladder ; Gallbladder Diseases ; Gallbladder Neoplasms ; Hepatectomy ; Humans ; Liver ; Lymph Nodes ; Medical Records ; Neoplasm Metastasis ; Prognosis ; Recurrence ; Reoperation ; Survival Rate

BACKGROUNDS/AIMS: According to 7th AJCC TNM staging system, gallbladder carcinoma (GBC) with lymph node (LN) metastasis is classified as N1 or N2; thus making the stage IIIB (N1) or IVB (N2). Stage IIIB consists of N1 status with wide coverage of T1-3, but T3N1 group often showed poorer outcomes than T1-2N1 groups. This study intended to assess post-resection prognosis of T3N1 versus other stage III subgroups. METHODS: We selected 103 patients from our institutional database of GBC who underwent R0 resection between July 1996 and June 2009 and whose GBC was confined to stage T3N0, T1-3N1 or T1-3N2. These patients were stratified into five groups, namely, T3N0 (n=26), T1N1 (n=13), T2N1 (n=35), T3N1 (n=20) and T1-3N2 (n=9), and were followed for > or =5 years or until death. RESULTS: Surgical procedures were minor liver resection (n=53), minor liver resection with bile duct resection (n=23), major liver resection (n=12), major liver resection with bile duct resection (n=5), and hepatopancreatoduodenectomy (n=12). Mean follow-up period was 57.2+/-68.5 months. Overall 5-year survival rate based on all-cause death and cancer-associated death, respectively, was 57.7% and 60.6% in T3N0, 15.4% and 15.4% in T1N1 (n=13), 28.6% and 28.6% in T2N1 (n=35), 5.0% and 5.7% in T3N1 (n=20), and 22.2% and 22.2% in T1-3N2. The survival outcome of T3N1 group was the poorest among the four stage III groups and was comparable to that of stage IVB (p=0.53). CONCLUSIONS: The prognosis of T3N1 GBC is unusually poor even after R0 resection, thus we suggest extensive LN dissection may be necessary in patients with T3 tumors for accurate prognostic evaluation and radical removal of potential nodal micrometastasis. Further validation of this result is necessary in large patient populations from multiple centers.
Bile Ducts ; Follow-Up Studies ; Gallbladder* ; Humans ; Liver ; Lymph Nodes ; Neoplasm Metastasis ; Neoplasm Micrometastasis ; Neoplasm Staging ; Prognosis ; Survival Analysis* ; Survival Rate

PURPOSE: Although a portal vein resection (PVR) can increase the chance for a successful curative resection, there is debate concerning the balance between the risk of the procedure and the effect on survival in patients with hilar cholangiocarcinoma. Therefore, we performed a retrospective study to determine the safety and survival after PVR for hilar cholangiocarcinoma. METHODS: We analyzed the cumulative survival rate and the associated clinical factors in 301 patients undergoing surgical intervention between June 1989 and June 2005. We divided 259 patients undergoing resection into two groups (51 PVR+ and 208 PVR-) and compared the survival and clinicopathological data. RESULTS: The 1-, 3- and 5-year survival rate of 186 patients undergoing curative resection was 83.3, 42.0 and 29.3%, respectively. The Bismuth-Corlette type IV, the infiltrative type, presence of perineural invasion, lymphovascular tumor emboli and lymph node metastases were more frequent in the PVR+ group. The survival rate was significantly lower in the PVR+ group but seven patients have survived for more than 5 years. Five (9.8%) operative mortalities occurred. However, the mortality directly related to the PVR was present in only one case. The morbidity and postoperative liver function were not different in comparisons between the two groups. In the PVR+ group, tumor invasion into the portal vein was observed in 28 of 51 patients. The tumor invasion on pathological examination did not affect survival in the PVR+ group. CONCLUSION: The results of this study showed that PVR in combination with hepatectomy, for hilar cholangiocarcinoma, could be performed with acceptable safety. Although the PVR has a negative impact on survival, a hepatectomy combined with a PVR can offer long-term survival to a few patients with advanced hilar cholangiocarcinoma.
Cholangiocarcinoma* ; Hepatectomy* ; Humans ; Klatskin's Tumor ; Liver ; Lymph Nodes ; Mortality ; Neoplasm Metastasis ; Portal Vein* ; Retrospective Studies ; Survival Rate

PURPOSE: Orthotopic liver transplantation is considered a standard procedure for patients with end-stage liver disease. Liver transplantation in older patients has increased, with generally acceptable results. In Korea we have an aging population. In this study, we retrospectively reviewed the results of liver transplantation in patients more than 60 years of age at Asan Medical Center. METHODS: Fifty-four patients, age 60 and over, received a liver transplantation at Asan Medical Center between January 1998 and June 2005. We retrospectively reviewed the medical records of these patients. All patients were assessed according to the following variables: age, gender, clinical features, indications for transplantation, surgical findings, the hospital stay following liver transplantation, days in the intensive care unit, complications, and survival. RESULTS: The mean age of the recipients was 62.4 years. The transplant indications were 28 cases of hepatocellular carcinoma and 15 of HBV related cirrhosis. There was postoperative mortality (up to 3 months) in seven patients (13.21%). The mean ICU and hospital stays were 8.04 and 36.8 days, respectively. Overall, the patient survival rates at 1, 3 and 5 years was 83.02%, 75.47% and 75.47%, respectively. CONCLUSIONS: The results of this study showed that chronologic age should not be a contraindication to liver transplantation, especially if the pretransplant evaluation shows no comorbid disease that could increase the mortality rate.
Aging ; Carcinoma, Hepatocellular ; Chungcheongnam-do ; Fibrosis ; Humans ; Intensive Care Units ; Korea ; Length of Stay ; Liver Diseases ; Liver Transplantation* ; Liver* ; Medical Records ; Mortality ; Retrospective Studies ; Survival Rate