Language: Spanish
References: 61
Page: 207-214
PDF size: 69.61 Kb.
ABSTRACT
The transplant of parent haematopoyetic cells (TPHC) has become an indispensable therapeutic resource in modern medicine. In Mexico, TPHC transplants can be divided into two stages. The first stage began in 1980 when Dr. Ricardo Sosa and his team performed the first TPHC transplant at the Instituto Nacional de la Nutrición in Mexico City. After this transplant, some others were performed at the Centro Medico Nacional, the Hospital Universitario de Monterrey, México, and at the Instituto Nacional de la Nutrición itself, among other institutions, all with poor results. This resulted in the temporary suspension of TPHC programs in several hospitals throughout the country. The practice of TPHC became almost anecdotal until 1995. In that year the second stage began with the arrival of some doctors already trained in TPHC. Another factor causing the reactivation of TPHC programs was the development of knowledge in this area: a) PHC from peripheral blood was used instead of bone marrow; b) methods to carry out transplants were simplifíed, and; c) allotransplant with non-mieloblative conditioning schemes were introduced.
Non-mieloblative allogeneic transplants (NMAT) have found fertile ground in developing countries, Mexico among them, since they are much cheaper, simpler, and just as efficient. In 1999, a NMAT program began in Monterrey and Puebla using a new, cheap, and accessible scheme employing fludarabine, ciclofosfamide, and busulfan. This "Mexican" scheme has proven useful in transplants for children, adults, and elderly patients, and it has produced results similar to the "traditional" pre-transplant conditioning schemes. The accessibility and efficiency of this method have resulted in its adoption by several of the national institutions, including the Centro Médico de la Raza of the Mexican Institute of Social Security and the Instituto Nacional de Cancerología, and it has even been adopted as a reference method by the LACOHG (
Latin American Cooperative Onco-Haemotology Group).
Umbilical cord cell transplants have taken place at the University Hospital of Monterrey, Mexico; the Haematology and Internal Medicine Center of Puebla; the Angeles Hospital of Mexico City and probably in other institutions. Placenta cell banks have been organized at the National Center of Blood Transfusion, the University Hospital of Monterrey, and the Cryopreservation Unit of Puebla, and in other private institutions.
The practice of TPHC in Mexico began in 1980, was stalled for some time, but luckily for the patients who require this treatment, it has recently restarted. In 2003, results of 1337 transplanted patients were reported nationwide.
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