Publications by authors named "Albert C Y Chan"

Importance: Previous studies showed that 42% to 50% of patients with locally advanced hepatocellular carcinoma (HCC) achieved complete remission (CR) after combined locoregional therapy (LRT) plus immunotherapy (IO). However, data on predictors of CR and long-term clinical outcomes without surgery and after discontinuation of IO are lacking.

Objective: To assess the long-term clinical outcomes among patients with unresectable HCC who achieved CR after LRT-IO and were placed on a watch-and-wait protocol.

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Liver transplantation (LT) in Asia started comparatively early in 1964, just 1 year after Starzl's trail-blazing first attempt. Despite the quick start, LT was slow to develop in this region. Limited access to universal healthcare, lack of public understanding and support as well as the absence of strong legislation, on a backdrop of a wide range of diverse social, religious, economic and cultural background are all contributory factors.

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Article Synopsis
  • The study compares the effectiveness and safety of combining stereotactic body radiotherapy (SBRT) with immunotherapy versus SBRT alone in patients with unresectable hepatocellular carcinoma.
  • Results show that the combination therapy (SBRT-IO) led to significantly improved overall survival rates and response compared to SBRT alone, with higher rates of complete and partial responses among patients.
  • Despite some cases of severe side effects from immunotherapy, the combination treatment demonstrated better outcomes, suggesting that further research through randomized trials is needed.
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Background: Intraoperative indocyanine green (ICG) fluorescence imaging has been shown to be a new and innovative way to illustrate the optimal resection margin in hepatectomy for hepatocellular carcinoma. This study investigated its accuracy in resection margin determination by looking into the correlation of ICG intensity gradients with pathological examination results of resected specimens.

Methods: This was a prospective, single-center, non-randomized controlled study.

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Objective: This study is to examine the impact of perioperative (intraoperative/postoperative) blood transfusion on the outcomes of curative hepatectomy for hepatocellular carcinoma. Hepatectomy is a well-established curative treatment for hepatocellular carcinoma, and blood transfusion cannot always be avoided in treating the disease.

Methods: A retrospective study of patients having curative hepatectomy for hepatocellular carcinoma from January 2010 to December 2019 at a single center was conducted.

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Background: Surgical resection is indicated for resectable colorectal liver metastases (CLM), but it is controversial for non-colorectal liver metastases (NCLM). This study aimed to compare survival outcomes of patients with resection of NCLM versus CLM and to identify prognostic factors for resection of NCLM.

Methods: Consecutive patients who underwent surgical resection of liver metastases at Queen Mary Hospital, Hong Kong from January 1989 to December 2019 were retrospectively reviewed.

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Introduction: Liver resection is the best treatment option for patients with resectable colorectal liver metastasis (CRLM). A 10-year follow-up can reflect the true curative potential of resection. This retrospective study investigated factors for long-term survival of CRLM patients.

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Background: The impact of three-dimensional (3D) visualization on laparoscopic hepatectomy for hepatocellular carcinoma is largely unknown.

Methods: A retrospective review with propensity-score matched analysis of 3D and two-dimensional (2D) laparoscopic hepatectomy performed in a tertiary hepatobiliary surgery center.

Results: Since the availability of 3D laparoscopy, the proportion of laparoscopic major hepatectomies has significantly expanded (1.

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Objective: To test the hypothesis that ICG fluorescence cholangiography (ICG-FC) helps to identify critical structures during laparoscopic cholecystectomy (LC) and hence reduce biliary injuries and conversions. In LC, biliary injury and conversion often happen if the biliary anatomy is misidentified.

Methods: This was a single-center randomized controlled trial from 2017 to 2019.

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Background: The Brisbane 2000 Terminology for Liver Anatomy and Resections, based on Couinaud's segments, did not address how to identify segmental borders and anatomic territories of less than one segment. Smaller anatomic resections including segmentectomies and subsegmentectomies, have not been well defined. The advent of minimally invasive liver resection has enhanced the possibilities of more precise resection due to a magnified view and reduced bleeding, and minimally invasive anatomic liver resection (MIALR) is becoming popular gradually.

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Background: Although the number of minimally invasive liver resections (MILRs) has been steadily increasing in many institutions, minimally invasive anatomic liver resection (MIALR) remains a complicated procedure that has not been standardized. We present the results of a survey among expert liver surgeons as a benchmark for standardizing MIALR.

Method: We administered this survey to 34 expert liver surgeons who routinely perform MIALR.

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Article Synopsis
  • A study looked at how a blood test called alpha-fetoprotein (AFP) could predict how long patients will survive after surgery for a type of liver cancer that had ruptured.
  • They found that an AFP level of 256 ng/ml is important; lower levels seemed to mean better survival chances for patients.
  • Patients were split into two groups based on their AFP levels, and those with lower AFP levels had fewer complications and lived longer after surgery compared to those with higher levels.
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Background: The concept of minimally invasive anatomic liver resection (MIALR) is gaining popularity. However, specific technical skills need to be acquired to safely perform MIALR. The "Expert Consensus Meeting: Precision Anatomy for Minimally Invasive HBP Surgery (PAM-HBP Surgery Consensus)" was developed as a special program during the 32nd meeting of the Japanese Society of Hepato-Biliary-Pancreatic Surgery (JSHBPS).

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Background: Salvage liver transplantation (SLT) is the ideal treatment for patients with recurrent hepatocellular carcinoma (HCC) and liver cirrhosis. The optimal timing for offering SLT was controversial. This study aimed at investigating the impact of time to recurrence and other prognostic factors on survival outcome after SLT.

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Colorectal cancer is a prevalent disease worldwide, with more than 50% of patients developing metastases to the liver. Despite advances in improving resectability, most patients present with non-resectable colorectal liver metastases requiring palliative systemic therapy and locoregional disease control strategies. There is a growing interest in the use of liver transplantation to treat non-resectable colorectal liver metastases in well selected patients, leading to a surge in the number of studies and prospective trials worldwide, thereby fuelling the emerging field of transplant oncology.

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Article Synopsis
  • Hepatectomy is a surgery that can help cure a type of liver cancer called hepatocellular carcinoma (HCC), but there's debate about whether extra treatment (called adjuvant therapy) is helpful afterwards.
  • The study looked at two groups of HCC patients: one group got extra treatment (adjuvant transarterial chemotherapy) after surgery, while the other group didn't, to see how it affected their recovery.
  • The results showed that patients who got the extra treatment had some issues like more blood loss, but those with positive surgical margins (cancer left behind) lived longer if they had the extra treatment compared to those who didn’t.
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  • The study looked at 144 patients who had liver cancer come back after a liver transplant to see if different treatments helped them live longer.
  • They found that patients who got a "radical" treatment (more aggressive) lived longer than those who received "palliative" care (less intense).
  • The results showed that the 50 patients who had the radical treatment survived for about 31 months on average, while those who had the palliative treatment only survived about 19 months.
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Background: The 8 edition of the American Joint Committee on Cancer tumor-node-metastasis staging system (AJCC 8) has been launched with modifications in T staging. The University of Hong Kong liver cancer staging system (HKUSS) has been proven to better categorize hepatocellular carcinoma (HCC) into different T stages. This study aimed to compare the two systems' predictive ability for HCC recurrence after primary surgical resection.

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Background: Hepatocellular carcinoma (HCC) with portal vein tumour thrombus (PVTT) signifies advanced disease, whether LT confers any survival superiority over resection remains uncertain.

Methods: A propensity score matched (PSM) analysis of liver transplantation (LT) and liver resection (LR) for HCC with PVTT was performed.

Results: A consecutive series of 88 patients who received either LT (10 DDLTs and 3 LDLTs) or LR (n=75) respectively were recruited.

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Background: We aimed to identify predictive factors for positron emission tomography (PET)-detected hepatocellular carcinoma (HCC) metastasis and a cost-effective approach to preoperative PET-computed tomography (CT) for detecting metastasis.

Methods: Clinicopathological and survival data of HCC patients having PET-CT with 18F-fludeoxyglucose (FDG) and 11C-acetate (ACT) following contrast-enhanced CT/magnetic resonance imaging (MRI) for preoperative tumor staging were reviewed. Binary logistic regression was performed to identify predictive factors for PET-detected metastasis.

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We present a 37 years' experience in the management of biliary atresia (BA) and discuss long-term complications after Kasai portoenterostomy (KPE). A retrospective territory-wide study from 1980 to 2017 on 231 patients with open KPE from three tertiary paediatric surgical centres was performed. Outcome parameters were clearance of jaundice (COJ), native liver survival (NLS) and long-term complications.

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Purpose: This retrospective, single-center study aimed to investigate the importance of chemotherapy and to come up with the optimal liver resection margin length for patients with resectable colorectal liver metastasis (CRLM).

Methods: Patients who had undergone any form of liver resection for CRLM were reviewed and analyzed. The analyses were broken down into three parts: (1) overall effect of chemotherapy, (2) effect of chemotherapy with positive/negative resection margin, and (3) result of discriminative analysis with optimal margin length analysis.

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