Mario-Enrique Rendón-Macías

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BACKGROUND There are few studies on the factors that influence the time to diagnosis (TD) in childhood cancer. The object of the present study was to determine the influence of some clinical and social factors associated to TD in children with cancer seen at Mexico City (MC) hospitals. PROCEDURE A retrospective study was performed. A total of 4,940(More)
The Mexican Institute of Social Security (IMSS) provides care for more than 40% of the Mexican population. This report constitutes the first study of the incidence of congenital hypothyroidism (CH) in Mexican children. We performed a prospective study with a population base. CH screening began in 1997 with blood samples from the heel taken 72 h after birth;(More)
OBJECTIVE to know the prevalence of healthy or potentially unhealthy food intake in the population insured by the Mexican Institute of Social Security. MATERIAL AND METHODS food intake was obtained from frequency questionnaires classified as healthy (HF) or potentially unhealthy food (PUF), and according to its nature and frequency consumption. The(More)
In this work, the epidemiology of cancer in children under one year of age in Mexico City is described. A survey (observational, descriptive and prolective study) from 1 January 1996 to 31 December 1999 was conducted at two paediatric hospitals of the Instituto Mexicano de Seguro Social in Mexico City (IMSS-MC). To calculate both the general and the by sex(More)
In order to determine the accuracy of serum gamma-glutamyl transferase (GGT) as a test for biliary atresia, we reviewed the charts of 29 infants with cholestatic jaundice less than one year of age. All patients underwent liver biopsy or laparotomy with cholangiogram to establish neonatal hepatitis (NH) or extrahepatic biliary atresia (EHBA). We also(More)
BACKGROUND Identification of pediatric patients at the end-of-life is not easy because criteria used are based on adults' criteria. OBJECTIVES In this survey we explore the children end-of-life definition pediatricians have, as well as to determine which interventions they use when caring a patient at end-of-life. MATERIAL AND METHODS SETTING(More)
The objective of this article is to present the frequency of cancer in Mexican children who were treated in the hospitals of the Instituto Mexicano del Seguro Social in Mexico City (IMSS-MC) in the period 1996–2001. The Registry of Cancer in Children, started in 1996 in the IMSS-MC, is an on-going, prospective register. The data from 1996 through 2001 were(More)
OBJECTIVES Conduct a meta-analysis of randomized clinical trials to assess the effectiveness and safety of parecoxib as analgesic for orthopedic surgery. MATERIAL AND METHODS The search strategy included Medline, Embase and Cochrane. Two independent investigators selected the trials. The meta-analyses were performed using the RevMan v.5.0 software.(More)
Neuroblastoma (NB) is the principal tumor of the sympathetic nervous system in children under one year of age. The incidence in developed countries is greater than that in developing countries. The aim of this article is to present the epidemiological and some clinical characteristics of Mexican children with NB. A population-based, prolective study, with(More)
BACKGROUND Child obesity has become a major health problem worldwide. In order to design successful intervention strategies, it is necessary to understand how children perceive obesity and its consequences. METHODS With the aim to evaluate scholar children perception of obesity as a significant factor on the quality of life, we developed and validated the(More)