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[Incidence some congenital defects in Monterrey, Mexico]
Ricardo J Hernández-Herrera1, Ricardo M Cerda-Flores, Martha I Dávila-Rodríguez
1Departamento de Genética, Hospital de Ginecología y Obstetricia No. 23 Dr. Ignacio Morones Prieto, Instituto Mexicano del Seguro Social IMSS.
Objective:
In Mexico, the congenital defects (CD) in newborns represent the third cause of infant morbi-mortality. Incidence rates/1000 reported for our country vary from 8.15 (Puebla) to 32.90 (Distrito Federal). The aim of this study was to estimate the incidence of some CD in Monterrey, Mexico.
Method:
A transversal, prospective, descriptive, and observational study was carried out at the Hospital de Ginecologia y Obstetricia No. 23, IMSS during January 1995 to December 1999. The external CD were analyzed according to World Health Organization (WHO) and classified according to their topography distribution.
Results:
A total incidence of 9.89 [(1309/132,369)* 1000)] was detected. The more frequent CD were: the nervous system (2.33), the chromosomal (1.67), osteomuscular (1.67) of face and neck (1.18), and reproductive system (0.81). The less frequent CD were: the digestive system (0.43), diverse syndromes (0.38), and skin (0.29).
Conclusion:
Even though the global incidence of DC observed in this study is into the rank informed in the national and international literature. Because of this incidence has a great variability, we considered important to homogenize diagnosis criteria for each DC. With this results it will be possible to carry out comparative cross-sectional studies to determine if they are similar or different and then, by association studies to establish its possible etiological factors.