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Hong Kong has a high incidence rate of hepatocellular
carcinoma (HCC). The annual age adjusted incidence rate
of HCC is about 50 per 100,000. At the Prince of Wales
Hospital, we see around 500 new cases each year. The
treatment of HCC is challenging. Only about 10% are
suitable for surgical resection and such patients remain
at a very high risk of recurrence. Currently there is
no proven benefit from any post-operative adjuvant treatment
nor is there any standard treatment for those with inoperable
disease. Conventional systemic chemotherapy and intra-arterial
treatment can only benefit a small proportion of patients.
In order to discover new forms of treatment we have
undertaken several phase II trials for inoperable HCC
as well as postoperative treatment for patients with
a high risk of development of HCC. All HCC patients
referred to our hospital are seen in the Joint Hepatoma
Clinic by a combined team of hepatologists, oncologists,
interventional radiologists and surgical oncologists.
This ensures patients are treated promptly according
to agreed protocols and entered into appropriate clinical
trials. The Joint Hepatoma Clinic also holds bi-weekly
hepatoma meetings with the pathologists and radiologists
to discuss difficult cases for management decision.
In terms of publications, we have shown that the post-operative
treatment with lipiodol-iodine-131 after surgical resection
is successful in a prospective randomized trial and
these results were published in The Lancet (353:797-801,
1999). Secondly, the prospect of an effective systemic
treatment (PIAF combination) capable of delivering complete
pathological remission seems to be becoming a reality
(Clinical Cancer Research, 5:1676-1681, 1999). We also
completed phase I and II studies in the use of intra-arterial
yttrium-90 microspheres in treatment of unresectable
hepatocellular carcinoma (British Journal of Cancer,
70:994-999, 1994. International Journal of Radiation
Oncology, Biology, Physics, 33:4, 919-924, 1995). With
both PIAF and yttrium-90 the concept of neoadjuvant
therapy to convert inoperable to operable lesions has
now been established (Annals of Surgery 233(2): 236-241,
2001). Supported by the Health Services Research Committee,
we have also completed a cost and quality of life study
on palliative strategies in HCC patients (Pharmacoeconomics,
in-press 2001). Through another support from the Hong
Kong Cancer Fund, we also finished accrual of over 1000
high-risk patients for hepatocellular carcinoma into
an early detection and screening program and the results
recently presented in ASCO 2001 (Proceedings of ASCO
2001, abstract #672).
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