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)
OBJECTIVE our aim was to report the frequency of cancer among a group of children from families having an income above the national average, with attention to adolescents, and to analyze time elapsed from the onset of signs or symptoms up to diagnosis confirmation. METHODS data related to new cancer cases were reviewed from January, 1995 to December,(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)
A non-randomized single blind study was undertaken to determine the clinical and physiological changes in suck feeding after sensorial oral stimulation, in fourteen patients age 9 to 210 days old with sucking alterations. Patients lacked at least one of the five oral reflexes, plus two or more abnormal sucking sings or at least one abnormal sucking sign,(More)
BACKGROUND This study was undertaken in order to 1) determine the frequency of infants with major congenital malformations who are breastfed and 2) identify factors associated with initiating and early weaning of breastfeeding. METHODS We conducted a descriptive cohort study at a tertiary-care pediatric hospital. Subjects included infants <20 days of age(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)
BACKGROUND 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. METHODS The Registry of Cancer in Children, started in 1996 in the IMSS-MC, is an on-going, prospective register. The data from(More)
BACKGROUND 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. METHODS A population-based,(More)
INTRODUCTION the National Survey of Coverage of Integrated Health Programs (ENCOPREVENIMSS) are probabilistic population-based surveys with delegation representativeness of insured population of the Mexican Institute of Social Security, belonging to different age groups. OBJECTIVE to evaluate the coverage of the Integrated Health Programs for Children and(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)