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Galicia-Moreno et al. Hepatoma Res 2020;6:20  I  http://dx.doi.org/10.20517/2394-5079.2019.36                               Page 9 of 18


                                    Table 4. Liver transplants in Latin America and the Caribbean in 2016
                                    Country        Number of transplants  PMP   Waiting list*
                                    Argentina             368          8.4     2008
                                    Bolivia               1            0.1     4
                                    Brazil                1880         9.0     4673
                                    Chile                 93           5.1     256
                                    Colombia              240          4.9     74
                                    Costa Rica            13           2.7     60
                                    Cuba                  20           1.8     32
                                    Dominican Republic    3            0.3     20
                                    Ecuador               31           1.9     34
                                    El Salvador           -            -       -
                                    Guatemala             0            0.0     -
                                    Mexico                178          1.4     681
                                    Peru                  23           0.7     40
                                    Puerto Rico           42           12.0    32
                                    Venezuela             2            < 0.1   19
                       *Total number of patients who were active on the waiting list in 2016; -data not found. PMP: per million population

               THERAPY
               The Latin America Association for the Study of the Liver (ALEH) published the clinical guidelines for the
               management of HCC in the region. The ALEH indicates the staging procedures that should be carried out.
               Also, one of its main objectives is to define the best therapeutic strategy for each patient. The most widely
               used staging system is the Barcelona Clinic Liver Cancer (BCLC) system since it relates each stage of HCC
               with the most appropriate treatment according to scientific evidence [5,66] . Generally, HCC can be approached
               by curative or systemic treatments. Curative treatment is possible if HCC is diagnosed at an early stage.

               Curative treatment
               According to the BCLC classification, three curative treatments are available: liver resection, liver
                                            [67]
               transplantation, and local ablation .

               Liver resection is the best therapeutic option for HCC patients with or without cirrhosis, when the liver is
                            [18]
               still functional . The aim of this surgical procedure is to obtain at least 2 cm margins through anatomic
               resection, except when the cirrhotic patient’s healthy residual liver is compromised [70-73] . Liver resection and
               liver transplantation are the only curative treatments for HCC patients, but unfortunately only 5% to 10%
                                                                                         [68]
               of patients are candidates because most have advanced disease and poor liver function . This option has
                                                                                                 [69]
               shown good results with up to 60% 5-year survival and low perioperative mortality (0.8%-3%) . If liver
               transplantation is contraindicated, the alternative is locoregional therapy. To select the ideal candidate, CT
                                                                                                        [5]
               or MR evaluation of tumor size, presence of satellite lesions and vascular involvement are very important .
               In some Latin American regions, HCC resection is recommended in patients classified as intermediate stage,
               when the liver has not completely lost its function, and survival of 5 years can still be achieved (patients with
               Child-Pugh A) [66,74] .

               Liver transplantation is the best option for treatment taking into account the tumor and the concomitant
                                                                                          [18]
               disease. In Latin America, the main problem is the absence of a organ donation culture . Liver resection
               and transplantation are curative surgical treatments for HCC by removing both the tumor and cirrhosis. It is
               important then, to considerer: (1) the candidate according to their tumor stage, liver function, physiological
                                                                            [75]
               status, (2) the experience of the medical staff performing the surgery . BCLC guidelines are the most
                                                                                           [77]
                                                              [76]
               widely accepted for assessing a HCC patient’s prognosis . According to Mazzaferro et al. , a patient could
               be eligible for liver transplantation when its expected survival is at least 70% at 5 years; this survival also
               depends of lesions size. In Mexico, liver transplantation is the first choice treatment for patients with Child-
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