Gac Med Mex
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Stereotactic body radiation therapy (SBRT) is a modality that delivers high doses of radiation to a well-defined tumor target in a single or a few fractions and with high precision, which significantly reduces the dose received by surrounding normal tissues. SBRT is indicated for inoperable, early stage (T1 and T2) primary non-small cell lung cancer, lung metastases with a controlled primary tumor, prostate tumors and oligometastatic disease. Despite the lack of long-term or phase III studies, efficacy results in local control are higher than 90%, with similar toxicity to that reported with conventional fractionated radiotherapy. This article describes SBRT technology and technique, along with clinical applications, indications and limitations of this therapeutic modality.
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Home confinement policies during the COVID-19 pandemic limited sun exposure and may have influenced on vitamin D levels. ⋯ The restrictions due to the COVID-19 pandemic led to a higher frequency of hypovitaminosis D and lower frequency of optimal values.
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Multiple studies have been recorded regarding the perception of abortion among students in the health area. ⋯ The medical-scientific training provided by the human embryology course is not enough to provide foundations to the perception of students on issues such as abortion or conscientious objection.
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Vaccination is the most effective intervention for reducing the burden of SARS-CoV-2-related disease; however, gaps in knowledge regarding cancer patients (CPs) immune response persist. ⋯ The BNT162b2 vaccine was associated with a higher humoral response. It is necessary for more information and vaccination strategies to be available for immunosuppressed patients in order to select the best biologics for this population based on individual characteristics.
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On July 21, 1988, a successful heart transplant was carried out for the first time in Mexico; 34 years later, several hospitals in the country have performed this procedure. We present information and comments on the results obtained within this period at Mexican Social Security Institute La Raza National Medical Center "Dr. Gaudencio González Garza" General Hospital, where 234 transplants have been performed (one out of every three carried out throughout the country), with a short- and mid-term survival comparable to that reported in the rest of the world. This hospital is the only center that performs simultaneous heart-kidney transplantation and elective heart re-transplantation, with favorable results.