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| 1 | High-intensity focused ultrasound ablation:An effective bridging therapy for hepatocellular carcinoma patients显示文摘AIM:To analyze whether high-intensity focused ultrasound(HIFU) ablation is an effective bridging therapy for patients with hepatocellular carcinoma(HCC).METHODS:From January 2007 to December 2010,49 consecutive HCC patients were listed for liver transplantation(UCSF criteria).The median waiting time for transplantation was 9.5 mo.Twenty-nine patients received transarterial chemoembolization(TACE) as a bringing therapy and 16 patients received no treatment before transplantation.Five patients received HIFU ablation as a bridging therapy.Another five patients with the same tumor staging(within the UCSF criteria) who received HIFU ablation but not on the transplant list were included for comparison.Patients were comparable in terms of Child-Pugh and model for end-stage liver disease scores,tumor size and number,and cause of cirrhosis.RESULTS:The HIFU group and TACE group showed no difference in terms of tumor size and tumor number.One patient in the HIFU group and no patient in the TACE group had gross ascites.The median hospital stay was 1 d(range,1-21 d) in the TACE group and two days(range,1-9 d) in the HIFU group(P < 0.000).No HIFU-related complication occurred.In the HIFU group,nine patients(90%) had complete response and one patient(10%) had partial response to the treatment.In the TACE group,only one patient(3%) had response to the treatment while 14 patients(48%) had stable disease and 14 patients(48%) had progressive disease(P = 0.00).Seven patients in the TACE group and no patient in the HIFU group dropped out from the transplant waiting list(P = 0.559).CONCLUSION:HIFU ablation is safe and effective in the treatment of HCC for patients with advanced cirrhosis.It may reduce the drop-out rate of liver transplant candidate. | Tan To Cheung Sheung Tat Fan See Ching Chan Kenneth SH Chok Ferdinand SK Chu Caroline R Jenkins Regina CL Lo James YY Fung Albert CY Chan William W Sharr Simon HY Tsang Wing Chiu Dai Ronnie TP Poon Chung Mau Lo | 2013 | World Journal of Gastroenterology2013,19,20: | 23 |
| 2 | Combined resection and radiofrequency ablation for multifocal hepatocellular carcinoma: Prognosis and outcomes显示文摘AIM: To analyze the combined treatment of resection and intraoperative radiofrequency ablation (RFA) for multifocal hepatocellular carcinoma in terms of prognosis and surgical outcomes.METHODS: This study was a retrospective case comparison study using prospectively collected data. The study covered the period from April 2001 to December 2006. The data of 200 patients with histologically confirmed hepatocellular carcinoma were reviewed. Nineteen patients (17 men and 2 women) having received resection in combination with RFA were chosen as subjects of the study (the combination group). Fiftyfour patients (43 men and 11 women) having received resection alone were selected for comparison (the resection group). The two groups matched tumor number and tumor size, and all the patients in the two groups displayed no tumor rupture, major vascular involvement and distant metastasis. Their demographics, preoperative assessment, disease recurrence patterns, overall survival and diseasefree survival were compared.RESULTS: In the combination group, the medianage was 65 years (range, 3477 years), the median tumor number was 3 (range, 29), and the median tumor size was 6 cm (range, 1.214 cm). In the resection group, the median age was 51.5 years (range, 2780 years, P = 0.003), the median tumor number was 3 (range, 29, P = 0.574), and the median tumor size was 6 cm (range, 114 cm, P = 0.782). The two groups were similar in characteristics of tumors and comorbidities, and had comparable results in preoperative liver function tests. All patients had ChildPugh class A status. Bilobar involvement occurred in 14 patients (73.6%) in the combination group and 3 patients (5.5%) in the resection group (P = 0.04). Six patients (32%) in the combination group and 35 patients (65%) in the resection group underwent major hepatectomy. Thirteen patients (68%) in the combination group and 19 patients (35%) in the resection group underwent minor hepatectomy (P = 0.012). The combination group had fewer major resections (32% vs 65%, P = 0.012), less blood loss (400 vs 657 mL, P = 0.007), shorter operation time (270 vs 400 min, P = 0.001), and shorter hospital stay (7 vs 8.5 d, P = 0.042). The two groups displayed no major differences in surgical complications (15.8% vs 31.5%, P = 0.24), disease recurrence (63.2% vs 50%, P = 0.673), hospital mortality (5.3% vs 5.6%, P = 1), and overall survival (53 vs 44.5 mo, P = 0.496).CONCLUSION: Safe and effective for selected patients with multifocal hepatocellular carcinoma, the combination of resection and intraoperative RFA widens the applicability of surgical intervention for the disease. | Tan To Cheung Kelvin K Ng Kenneth S Chok See Ching Chan Ronnie T Poon Chung Mau Lo Sheung Tat Fan | 2010 | World Journal of Gastroenterology2010,16,24: | 14 |
| 3 | Pancreaticoduodenectomy with vascular reconstruction for adenocarcinoma of the pancreas with borderline resectability显示文摘AIM:To analyze whether pancreaticoduodenectomy with simultaneous resection of tumor-involved vessels is a safe approach with acceptable patient survival.METHODS:Between January 2001 and March 2012,136 patients received pancreaticoduodenectomy for adenocarcinoma at our hospital.Seventy-eight patients diagnosed with pancreatic head carcinoma were included in this study.Among them,46 patients received standard pancreaticoduodenectomy(group 1)and32 patients received pancreaticoduodenectomy with simultaneous resection of the portal vein or the superior mesenteric vein or artery(group 2)followed by reconstruction.The immediate surgical outcomes and survivals were compared between the groups.Fifty-five patients with unresectable adenocarcinoma of the pancreas without liver metastasis who received only bypassoperations(group 3)were selected for additional survival comparison.RESULTS:The median ages of patients were 67 years(range:37-82 years)in group 1,and 63 years(range:35-86 years)in group 2.All group 2 patients had resection of the portal vein or the superior mesenteric vein and three patients had resection of the superior mesenteric artery.The pancreatic fistula formation rate was21.7%(10/46)in group 1 and 15.6%(5/32)in group2(P=0.662).Two hospital deaths(4.3%)occurred in group 1 and one hospital death(3.1%)occurred in group 2(P=0.641).The one-year,three-year and five-year overall survival rates in group 1 were 71.1%,23.6%and 13.5%,respectively.The corresponding rates in group 2 were 70.6%,33.3%and 22.2%(P=0.815).The one-year survival rate in group 3 was13.8%.Pancreaticoduodenectomy with simultaneous vascular resection was safe for pancreatic head adenocarcinoma.CONCLUSION:The short-term and survival outcomes with simultaneous resection were not compromised when compared with that of standard pancreaticoduodenectomy. | Tan To Cheung Ronnie TP Poon Kenneth SH Chok Albert CY Chan Simon HY Tsang Wing Chiu Dai See Ching Chan Sheung Tat Fan Chung Mau Lo | 2014 | World Journal of Gastroenterology2014,20,46: | 8 |
| 4 | Rapid measurement of indocyanine green retention by pulse spectrophotometry: a validation study in 70 patients with Child-Pugh A cirrhosis before hepatectomy for hepatocellular carcinoma显示文摘BACKGROUND: The indocyanine green (ICG) retention test is the most popular liver function test for selecting patients for major hepatectomy. Traditionally, it is done using spectrophotometry with serial blood sampling. The newly- developed pulse spectrophotometry is a faster alternative, but its accuracy on Child-Pugh A cirrhotic patients undergoing hepatectomy for hepatocellular carcinoma has not been well documented. This study aimed to assess the accuracy of the LiMON , one of the pulse spectrophotometry systems, in measuring preoperative ICG retention in these patients and to devise an easy formula for conversion of the results so that they can be compared with classical literature records where ICG retention was measured by the traditional method. METHODS: We measured the liver function of 70 Child-Pugh A cirrhotic patients before hepatectomy for hepatocellular carcinoma from September 2008 to January 2009. ICG retention at 15 minutes measured by traditional spectrophotometry (ICGR15) was compared with ICG retention at 15 minutes measured by the LiMON (ICGR15(L)). RESULTS: The median ICGR15 was 14.7% (5.6%-32%) and the median ICGR15(L) was 10.4% (1.2%-28%). The mean difference between them was -4.3606. There was a strong correlation between ICGR15 and ICGR15(L) (correlation coefficient, 0.844; 95% confidence interval, 0.762-0.899). The following formula was devised: ICGR15=1.16×ICGR15(L)+2.73.CONCLUSIONS: The LiMON provides a fast and repeatable way to measure ICG retention at 15 minutes, but with constant underestimation of the real value. Therefore, when comparing results obtained by traditional spectrophotometry and the LiMON, adjustment of results from the latter is necessary, and this can be done with a simple mathematical calculation using the above formula. | Tan To Cheung See Ching Chan Kenneth SH Chok Albert CY Chan Wan Ching Yu Ronnie TP Poon Chung Mau Lo Sheung Tat Fan | 2012 | Hepatobiliary & Pancreatic Diseases International2012,11,3: | 8 |
| 5 | Survival outcomes of liver transplantation for hepatocellular carcinoma in patients with normal, high and very high preoperative alpha-fetoprotein levels显示文摘AIM To investigate the impact of alpha-fetoprotein(AFP) on long-term recurrence rate and overall survival and we also aimed to define the level of AFP leading to a higher risk of disease recurrence and affecting patient survival.METHODS Data of adult patients who received liver transplant(LT) for hepatocellular carcinoma(HCC) at our hospital from January 2000 to December 2013 were reviewed. Reviewed data included demographic characteristics, preoperative AFP level, operative details, follow-up details, and survival outcomes. Patients were mostly listed for LT based on Milan or UCSF criteria. For the purpose of this study, normal AFP level was defined as AFP value < 10 ng/m L, high AFP level was defined as AFP value ≥ 10 to < 400 ng/m L, and very highAFP level was defined as AFP ≥ 400 ng/m L. The patients were divided into these 3 groups accordingly. Survival rates were plotted as Kaplan-Meier curves and compared by log-rank analysis. Continuous variables were expressed as median(interquartile range). Categorical variables were compared by Spearman's test. Discriminative analysis was used to define the lowest value of AFP that could affect the overall survival in study population. Statistical significance was defined by a P value of < 0.05.RESULTS Totally 250 adult patients underwent LT for HCC in the study period. Eight-four of them received deceaseddonor LT and 166 had living-donor LT. The patients were divided into 3 groups: Group A, AFP < 10 ng/m L(n = 83); Group B, AFP ≥ 10 to < 400 ng/m L(n = 131); Group C, AFP ≥ 400 ng/m L(n = 36). The commonest etiology was hepatitis-B-related cirrhosis. The Model for End-stage Liver Disease scores in these groups were similar(median, 13 vs 13 vs 12; P = 0.745). The time to operation in Group A was longer(median, 94 vs 31 vs 35 d; P = 0.001). The groups were similar in hospital mortality(P = 0.626) and postoperative complication(P = 0.702). Pathology of explants showed that the 3 groups had similar numbers of tumor nodules, but the tumors in Group C were larger(A: 2.5 cm, B: 3.0 cm, C: 4.0 cm; P = 0.003). Group C had a bigger proportion of patients who were beyond Milan criteria(P = 0.010). Poor differentiation and vascular permeation were also more common in this group(P = 0.017 and P = 0.003 respectively). It also had poorer 5-year survival(A: 85.5%, B: 82.4%, C: 66%; P = 0.029). The 5-year disease-free survival was 84.3% in Group A, 80.1% in Group B, and 61.1% in Group C. Receiver operating characteristic area under the curve for AFP in predicting tumor recurrence was 0.685. The selected cut-off value was 54 ng/m L for AFP(C-index 0.685; 95%CI: 0.592-0.779; sensitivity 0.595; specificity 0.687). On discriminative analysis, AFP value of 105 ng/m L was shown to affect the overall survival of the patients.CONCLUSION HCC patients with a high preoperative AFP level had inferior survival after LT. AFP level of 54 ng/m L was associated with disease recurrence, and AFP level of 105 ng/m L was found to be the cut-off value for overall survival difference. | Wong Hoi She Albert Chi Yan Chan Tan To Cheung Chung Mau Lo Kenneth Siu Ho Chok | 2018 | World Journal of Hepatology2018,10,2: | 7 |
| 6 | Survival outcomes of right-lobe living donor liver transplantation for patients with high Model for End-stage Liver Disease scores显示文摘BACKGROUND: Controversy exists over whether living donor liver transplantation (LDLT) should be offered to patients with high Model for End-stage Liver Disease (MELD) scores. This study tried to determine whether a high MELD score would result in inferior outcomes of right-lobe LDLT. METHODS: Among 411 consecutive patients who received right-lobe LDLT at our center, 143 were included in this study. The patients were divided into two groups according to their MELD scores: a high-score group (MELD score ≥25; n=75) and a low-score group (MELD score <25; n=68). Their demographic data and perioperative conditions were compared. Univariable and multivariable analyses were performed to identify risk factors affecting patient survival. RESULTS: In the high-score group, more patients required preoperative intensive care unit admission (49.3% vs 2.9%; P<0.001), mechanical ventilation (21.3% vs 0%; P<0.001), or hemodialysis (13.3% vs 0%; P=0.005); the waiting time before LDLT was shorter (4 vs 66 days; P<0.001); more blood was transfused during operation (7 vs 2 units; P<0.001); patients stayed longer in the intensive care unit (6 vs 3 days; P<0.001) and hospital (21 vs 15 days; P=0.015) after transplantation;more patients developed early postoperative complications (69.3% vs 50.0%; P=0.018); and values of postoperative peak blood parameters were higher. However, the two groups had comparable hospital mortality. Graft survival and patient overall survival at one year (94.7% vs 95.6%; 95.9% vs 96.9%), three years (91.9% vs 92.6%; 93.2% vs 95.3%), and five years (90.2% vs 90.2%; 93.2% vs 95.3%) were also similar between the groups. CONCLUSIONS: Although the high-score group had signifi-cantly more early postoperative complications, the two groups had comparable hospital mortality and similar satisfactory rates of graft survival and patient overall survival. Therefore, a high MELD score should not be a contraindication to right-lobe LDLT if donor risk and recipient benefit are taken into full account. | Kenneth SH Chok See Ching Chan James YY Fung Tan To Cheung Albert CY Chan Sheung Tat Fan Chung Mau Lo | 2013 | Hepatobiliary & Pancreatic Diseases International2013,12,3: | 6 |
| 7 | Acute pancreatitis induced by transarterial chemoembolization:a single-center experience of over 1500 cases显示文摘BACKGROUND: Acute pancreatitis is a relatively rare but potentially lethal complication after transarterial chemotherapy. This study aimed to review the complications such as acute pancreatitis after transarterial chemotherapy with or without embolization for hepatocellular carcinoma.METHODS: A total of 1632 patients with hepatocellular carcinoma who had undergone transarterial chemoembolization from January 2000 to February 2014 in a single-center were reviewed retrospectively. We investigated the potential complications of transarterial chemoembolization, such as acute pancreatitis and acute pancreatitis-related complications.RESULTS: Of the 1632 patients with hepatocellular carcinoma who had undergone 5434 transarterial chemoembolizations, 1328 were male and 304 female. The median age of these patients was 61 years. Most(79.6%) of the patients suffered from HBV-related hepatocellular carcinoma. The median tumor size was 5.2 cm. Of the 1632 patients, 145 patients underwent transarterial chemoembolization with doxorubicin eluting bead, making up a total of 538 episodes. The remaining patients underwent transarterial chemoembolization with cisplatin. Seven(0.4%) patients suffered from acute pancreatitis postchemoembolization. Six patients had chemoembolization with doxorubicin and one had chemoembolization with cisplatin. Patients who received doxorubicin eluting bead had a higher risk of acute pancreatitis [6/145(4.1%) vs 1/1487(0.1%), P<0.0001]. Two patients had anatomical arte-rial variations. Four patients developed acute pancreatitisrelated complications including necrotizing pancreatitis(n=3) and pseudocyst formation(n=1). All of the 4 patients resolved after the use of antibiotics and other conservative treatment. Three patients had further transarterial chemoembolization without any complication.CONCLUSIONS: Acute pancreatitis after transarterial chemoembolization could result in serious complications, especially after treatment with doxorubicin eluting bead. Continuation of current treatment with transarterial chemoembolization after acute pancreatitis is feasible providing the initial attack is completely resolved. | Wong Hoi She Albert CY Chan Tan To Cheung Kenneth SH Chok See Ching Chan Ronnie TP Poon Chung Mau Lo | 2016 | Hepatobiliary & Pancreatic Diseases International2016,15,1: | 6 |
| 8 | Modulation of graft vascular inflow guided by flowmetry and manometry in liver transplantation显示文摘BACKGROUND:Survival of the partial graft after living donor liver transplantation owes much to its tremendous regenerative ability.With excellent venous outflow capacity,a graft within a wide range of graft-to-standard-liver-volume ratios can cope with portal hypertension that is common in liver transplant recipients.However,when the ratio range is exceeded,modulation of graft vascular inflow becomes necessary for graft survival.The interplay between graft-to-standard-liver-volume ratio and portal pressure,in the presence of portosystemic shunt or otherwise,requires individualized modulation of graft portal and arterial inflows.Boosting of portal inflow by shunt ligation can be guided by transonic flowmetry,whereas muting of portal inflow by splenic artery ligation can be monitored by portal electronic manometry.METHOD:We describe four cases to illustrate the above.RESULTS:One patient had hepatic artery thrombosis resulting from splenic artery steal syndrome which was the sequela of small-for-size syndrome.Emergency splenic artery ligation and re-anastomosis of the hepatic artery successfully muted the portal inflow and boosted the hepatic arterial inflow.Another patient with portal vein thrombosis underwent thrombendvenectomy.Portal inflow was boosted with ligation of portosystemic shunt,which is often present in these patients with portal hypertension.The coexistence of splenic aneurysm and splenorenal shunt required ligation of both in the third patient.The fourth patient,with portal pressure and flow monitoring,avoided ligation of a coronary vein which became a main portal inflow after portal thrombendvenectomy.CONCLUSION:Management of graft inflow modulation guided selectively by transonic flowmetry or portal manometry was described. | See Ching Chan Chung Mau Lo Kenneth SH Chok William W Sharr Tan To Cheung Simon HY Tsang Albert CY Chan Sheung Tat Fan | 2011 | Hepatobiliary & Pancreatic Diseases International2011,10,6: | 5 |
| 9 | Environmental heavy metals and cardiovascular diseases:Status and future direction显示文摘Cardiovascular disease(CVD)and environmental degradation are leading global health problems of our time.Recent studies have linked exposure to heavy metals to the risks of CVD and diabetes,particularly in populations from low-and middle-income countries,where concomitant rapid development occurs.In this review,we 1)assessed the totality,quantity,and consistency of the available epidemiological studies,linking heavy metal exposures to the risk of CVD(including stroke and coronary heart disease);2)discussed the potential biological mechanisms underlying some tantalizing observations in humans;and 3)identified gaps in our knowledge base that must be investigated in future work.An accumulating body of evidence from both experimental and obser-vational studies implicates exposure to heavy metals,in a dose-response manner,in the increased risk of CVD.The limitations of most existing studies include insufficient statistical power,lack of comprehensive assessment of exposure,and cross-sectional design.Given the widespread exposure to heavy metals,an urgent need has emerged to investigate these putative associations of environmental exposures,either independently or jointly,with incident CVD outcomes prospectively in well-characterized cohorts of diverse populations,and to determine potential strategies to prevent and control the impacts of heavy metal exposure on the cardiometabolic health outcomes of individuals and populations. | Ai-Min Yang Kenneth Lo Tong-Zhang Zheng Jing-Li Yang Ya-Na Bai Ying-Qing Feng Ning Cheng Si-Min Liu | 2020 | Chronic Diseases and Translational Medicine2020,6,4: | 5 |
| 10 | Outcomes of right-lobe and left-lobe living-donor liver transplantations using small-for-size grafts显示文摘AIM To analyze the outcomes of living-donor liver transplantation(LDLT) using left-lobe(LL) or right-lobe(RL) small-for-size(SFS) grafts.METHODS Prospectively collected data of adult patients who underwent LDLT at our hospital in the period from January 2003 to December 2013 were reviewed. The patients were divided into the RL-LDLT group and the LL-LDLT group. The two groups were compared in terms of short-and long-term outcomes, including incidence of postoperative complication, graft function, graft survival, and patient survival. A SFS graft was defined as a graft with a ratio of graft weight(GW) to recipient standard liver volume(RSLV)(GW/RSLV) of < 50%. The Urata formula was used to estimate RSLV.RESULTS Totally 218 patients were included for analysis, with 199 patients in the RL-LDLT group and 19 patients in the LL-LDLT group. The two groups were similar in terms of age(median, 53 years in the RL-LDLT group and 52 years in the LL-LDLT group, P = 0.997) but had significantly different ratios of men to women(165:34 in the RL-LDLT group and 8:11 in the LL-LDLT group, P < 0.0001). The two groups were also significantly different in GW(P < 0.0001), GW/RSLV(P < 0.0001), and graft cold ischemic time(P = 0.007). When it comes to postoperative complication, the groups were comparable(P = 0.105). Five patients died in hospital,4(2%) in the RL-LDLT group and 1(5.3%) in the LLLDLT group(P = 0.918). There were 38 graft losses, 33(16.6%) in the RL-LDLT group and 5(26.3%) in the LL-LDLT group(P = 0.452). The 5-year graft survival rate was significantly better in the RL-LDLT group(95.2% vs 89.5%, P = 0.049). The two groups had similar 5-year patient survival rates(RL-LDLT: 86.8%, LL-LDLT: 89.5%, P = 0.476).CONCLUSION The use of SFS graft in LDLT requires careful tailormade surgical planning and meticulous operation. LLLDLT can be a good alternative to RL-LDLT with similar recipient outcomes but a lower donor risk. Further research into different patient conditions is needed in order to validate the use of LL graft. | Wong Hoi She Kenneth SH Chok James YY Fung Albert CY Chan Chung Mau Lo | 2017 | World Journal of Gastroenterology2017,23,23: | 4 |
| 11 | Surgical Outcomes in Hepatocellular Carcinoma Patients with Portal Vein Tumor Thrombosis显示文摘 | Kenneth S. H. Chok Tan To Cheung See Ching Chan Ronnie T. P. Poon Sheung Tat Fan Chung Mau Lo | 2014 | World Journal of Surgery2014,,2: | 4 |
| 12 | Entecavir Monotherapy Is Effective in Suppressing Hepatitis B Virus After Liver Transplantation显示文摘 | James Fung Cindy Cheung See–Ching Chan Man–Fung Yuen Kenneth S.H. Chok William Sharr Wing–Chiu Dai Albert C.Y. Chan Tan–To Cheung Simon Tsang Banny Lam Ching–Lung Lai Chung–Mau Lo | 2011 | Gastroenterology2011,,4: | 3 |
| 13 | Combined cavo-atrial thrombectomy and hepatectomy in hepatocellular carcinoma显示文摘To the Editor:Hepatocellular carcinoma(HCC)remains one of the commonest cancers worldwide especially in hepatitis B endemic regions.Its aggressive behavior is characterised by the natural history of increasing size,a tendency for vascular invasion into the hepatic veins and portal veins Further growth into the inferior vena cava(IVC)and right atrium(RA)is an infrequent finding but | Julian Tsang Albert Chan Kenneth Chok Flora Tsang Chung Mau Lo | 2017 | Hepatobiliary & Pancreatic Diseases International2017,16,3: | 3 |
| 14 | Survival analysis of breast cancer liver metastasis treated by hepatectomy: A propensity score analysis for Chinese women in Hong Kong显示文摘Background: Survival of patients with breast cancer liver metastasis is very poor. This study aimed to analyze the survival outcome of hepatectomy for this patient population. Methods: From January 1995 to December 2014, 2522 patients with liver cancer received hepatectomy at our hospital. Twenty-one of them, all female, received the operation for breast cancer liver metastasis. Performance was compared with patients with colorectal liver metastasis treated with hepatectomy after propensity score analysis in a ratio of 1:3. Results: Twenty-one patients received hepatectomy for breast cancer. After propensity score matching, 63 patients who had hepatectomy for colorectal cancer were selected for comparison. There was no significant difference in immediate or short-term outcomes between the two groups of patients in terms of operative time, blood loss and surgical morbidities. All patients with breast cancer had R0 resection. No hospital death occurred. After hepatectomy, the 1-, 3- and 5-year overall survival rates were 100.0%, 58.9% and 58.9% respectively in patients with breast cancer. The 1-, 3- and 5-year overall survival rates were 95.0%, 57.2% and 39.7% respectively in patients with colorectal cancer (P = 0.572). On multivariate analysis, triple negative status was the only independent poor prognostic factor in breast cancer liver metastasis (OR = 6.411;95% CI: 1.351–30.435;P = 0.019). Conclusions: Hepatectomy is a safe and effective way of treating breast cancer liver metastasis at experienced centers where multidisciplinary adjuvant treatments are available. It can be considered more frequently as part of the multidisciplinary care for this patient population. | Tan To Cheung Kenneth SH Chok Albert CY Chan Simon HY Tsang Wing Chiu Dai Thomas CC Yau Ava Kwong Chung Mau Lo | 2019 | Hepatobiliary & Pancreatic Diseases International2019,18,5: | 3 |
| 15 | Clinical factors affecting rejection rates in liver transplantation显示文摘BACKGROUND: With improvements in survival, liver transplant recipients now suffer more morbidity from long-term immunosuppression. Considerations were given to develop individualized immunosuppression based on their risk of rejection. METHOD: We retrospectively analyzed the data of 788 liver transplants performed during the period from October 1991 to December 2011 to study the relationship between acute cellular rejection(ACR) and various clinical factors. RESULTS: Multivariate analysis showed that older age(P=0.04,OR=0.982), chronic hepatitis B virus infection(P=0.005, OR=0.574), living donor liver transplantation(P=0.02, OR=0.648) and use of interleukin-2 receptor antagonist on induction(P<0.001, OR=0.401) were associated with fewer ACRs. Patients with fulminant liver failure(P=0.004, OR=4.05) were more likely to develop moderate to severe grade ACR. CONCLUSIONS: Liver transplant recipients with older age,chronic hepatitis B virus infection, living donor liver transplantation and use of interleukin-2 receptor antagonist on induction have fewer ACR. Patients transplanted for fulminant liver failure are at higher risk of moderate to severe grade ACR.These results provide theoretical framework for developing individualized immunosuppression. | Kin Pan Au See-Ching Chan Kenneth Siu-Ho Chok William Wei Sharr Wing-Chiu Dai Sui-Ling Sin Tiffany Cho-Lam Wong Chung-Mau Lo | 2015 | Hepatobiliary & Pancreatic Diseases International2015,14,4: | 3 |
| 16 | Initial experience with stereotactic body radiotherapy for intrahepatic hepatocellular carcinoma recurrence after liver transplantation显示文摘BACKGROUND Graft hepatocellular carcinoma(HCC)recurrence after liver transplant is more frequently encountered.Graft hepatectomy is technically challenging and is associated with high morbidity.Stereotactic body radiation therapy(SBRT)has been shown to be safe and effective for the treatment of primary HCC.However,its role in HCC recurrence in a liver graft remains unclear.AIM To evaluate the safety and efficacy of SBRT for the treatment of graft HCC recurrence after liver transplantation.METHODS A retrospective study was conducted.From 2012 to 2018,6 patients with intrahepatic HCC recurrence after liver transplant were treated with SBRT at Queen Mary Hospital,the University of Hong Kong.The primary outcome was time to overall disease progression and secondary outcomes were time to local progression and best local response,as assessed with the Modified response Evaluation Criteria for Solid Tumours criteria.Patients were monitored for treatment related toxicities and graft dysfunction.RESULTS A total of 9 treatment courses were given for 13 tumours.The median tumour size was 2.3 cm(range 0.7-3.6 cm).Two(22%)patients had inferior vena cava tumour thrombus.The best local treatment response was:5(55%)complete response,1(11%)partial response and 3(33%)stable disease.After a median follow up duration of 15.5 mo,no local progression or mortality was yet observed.The median time to overall disease progression was 6.5 mo.There were 6 regional progression in the liver graft(67%)and 2 distant progression in the lung(22%).There was no grade 3 or above toxicity and there was no graft dysfunction after SBRT.CONCLUSION SBRT appears to be safe in this context.Regional progression is the mode of failure. | Kin Pan Au Chi Leung Chiang Albert Chi Yan Chan Tan To Cheung Chung Mau Lo Kenneth Siu Ho Chok | 2020 | World Journal of Clinical Cases2020,8,13: | 3 |
| 17 | High-intensity focused ultrasound ablation as a bridging therapy for hepatocellular carcinoma patients awaiting liver transplantation显示文摘The scarcity of liver grafts in Asia leads to a significant dropout of patients from liver transplant waiting lists, particularly patients with hepatocellular carcinoma and a low model for end-stage liver disease score. In order to reduce dropping out, different bridging therapies are employed. We report the use of high-intensity focused ultrasound ablation as a bridging therapy for a patient with hepatocellular carcinoma of stage two and an extremely low platelet count (20×10 9 /L). The ablation was successful. Blood tests showed that his liver function was similar before and after the treatment. No adhesion was encountered in the liver transplantation performed six months later. | Tan To Cheung Kenneth SH Chok Regina CL Lo William W Sharr See Ching Chan Ronnie TP Poon Sheung Tat Fan Chung Mau Lo | 2012 | Hepatobiliary & Pancreatic Diseases International2012,11,5: | 3 |
| 18 | Impact of small-for-size liver grafts on medium-term and long-term graft survival in living donor liver transplantation: A meta-analysis显示文摘BACKGROUND Small-for-size grafts (SFSGs) in living donor liver transplantation (LDLT) could optimize donor postoperative outcomes and also expand the potential donor pool. Evidence on whether SFSGs would affect medium-term and long-term recipient graft survival is lacking. AIM To evaluate the impact of small-for-size liver grafts on medium-term and longterm graft survival in adult to adult LDLT. METHODS A systematic review and meta-analysis were performed by searching eligible studies published before January 24, 2019 on PubMed, EMBASE, and Web of Science databases. The primary outcomes were 3-year and 5-year graft survival. Incidence of small-for-size syndrome and short term mortality were also extracted. RESULTS This meta-analysis is reported according to the guidelines of the PRISMA 2009 Statement. Seven retrospective observational studies with a total of 1821 LDLT recipients were included in the meta-analysis. SFSG is associated with significantly poorer medium-term graft survival. The pooled odds ratio for 3-year graft survival was 1.58 [95% confidence interval 1.10-2.29, P = 0.014]. On the other hand, pooled results of the studies showed that SFSG had no significant discriminatory effect on 5-year graft survival with an odds ratio of 1.31 (95% confidence interval 0.87-1.97, P = 0.199). Furthermore, incidence of small-for-size syndrome detected in recipients of SFSG ranged from 0-11.4% in the included studies. CONCLUSION SFSG is associated with inferior medium-term but not long-term graft survival. Comparable long-term graft survival based on liver graft size shows that smaller grafts could be accepted for LDLT with appropriate flow modulatory measures. Close follow-up for graft function is warranted within 3 years after liver transplantation. | Ka Wing Ma Kelly Hiu Ching Wong Albert Chi Yan Chan Tan To Cheung Wing Chiu Dai James Yan Yue Fung Wong Hoi She Chung Mau Lo Kenneth Siu Ho Chok | 2019 | World Journal of Gastroenterology2019,25,36: | 3 |
| 19 | Long-Term Survival Analysis of Pure Laparoscopic Versus Open Hepatectomy for Hepatocellular Carcinoma in Patients With Cirrhosis: A Single-Center Experience显示文摘 | Tan To Cheung Ronnie T. P. Poon Wai Key Yuen Kenneth S. H. Chok Caroline R. Jenkins See Ching Chan Sheung Tat Fan Chung Mau Lo | 2013 | Annals of Surgery2013,,3: | 3 |
| 20 | Bile duct anastomotic stricture after adult‐to‐adult right lobe living donor liver transplantation显示文摘 | Kenneth Siu Ho Chok See Ching Chan Tan To Cheung William Wei Sharr Albert Chi Yan Chan Chung Mau Lo Sheung Tat Fan | 2011 | Liver Transpl2011,,1: | 2 |