{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2022,11,25]],"date-time":"2022-11-25T06:49:18Z","timestamp":1669358958585},"reference-count":21,"publisher":"Hindawi Limited","license":[{"start":{"date-parts":[[2010,1,1]],"date-time":"2010-01-01T00:00:00Z","timestamp":1262304000000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["International Journal of Pediatrics"],"published-print":{"date-parts":[[2010]]},"abstract":"<jats:p><jats:italic>Objective<\/jats:italic>. To analyze 25 years of mortality of extremely low-birth-weight (ELBW) neonates (\u22641000\u2009g) in a private hospital in Mexico City and to establish the current viability limit for ELBW neonates.<jats:italic>Methods<\/jats:italic>. We designed a prospective observational study of all ELBW neonates born between 1985 and 2009. Neonatal mortality, early neonatal mortality, and the 120-day mortality rate were analyzed in 5-year intervals by two categories of birth weight (501\u2013750\u2009g and 751\u20131000\u2009g).<jats:italic>Results<\/jats:italic>. Among the 50,823 total births, 158 were ELBW (3.1 per 10<jats:sup>3<\/jats:sup>). Neonatal mortality (death \u226428 days) decreased for the 501\u2013750\u2009g neonates from 88.9% (1985\u20131989) to 55.6% (2005\u20131999) (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><mml:mi>P<\/mml:mi><mml:mo>=<\/mml:mo><mml:mn>.008<\/mml:mn><\/mml:math>) and for 751\u20131000\u2009g neonates also decreased from 50% to 5.3% (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><mml:mi>P<\/mml:mi><mml:mo>=<\/mml:mo><mml:mn>.002<\/mml:mn><\/mml:math>). The 120-day mortality for neonates over 500\u2009g diminished: 501\u2013750\u2009g neonates, 88.9% to 61.1% (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><mml:mi>P<\/mml:mi><mml:mo>=<\/mml:mo><mml:mn>.02<\/mml:mn><\/mml:math>) and for 751\u20131000\u2009g neonates, 62.5% to 15.8% (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><mml:mi>P<\/mml:mi><mml:mo>=<\/mml:mo><mml:mn>.002<\/mml:mn><\/mml:math>). The highest viability limit was established in neonates who weighed \u2265650\u2009g and were \u226526 weeks in gestational age.<jats:italic>Conclusions<\/jats:italic>. The survival of ELBW neonates has improved in Mexico particularly in private hospitals, and it was more evident over the years 2004\u20132009. These data suggest that it is possible to increase the ELBW neonates survive in developing counties.<\/jats:p>","DOI":"10.1155\/2010\/265146","type":"journal-article","created":{"date-parts":[[2010,12,21]],"date-time":"2010-12-21T19:36:38Z","timestamp":1292960198000},"page":"1-8","source":"Crossref","is-referenced-by-count":2,"title":["Mortality in Extremely Low-Birth-Weight Neonates in M\u00e9xico City (1985\u20132009)"],"prefix":"10.1155","volume":"2010","author":[{"given":"Jos\u00e9","family":"Iglesias-Leboreiro","sequence":"first","affiliation":[{"name":"Unidad de Cuidados Neonatales, Hospital Espa\u00f1ol de M\u00e9xico, Ejercito Nacional 613, C-302 colonia Granada, CP 11520, Mexico"},{"name":"Departamento de Postgrado, Escuela de Medicina Universidad La Salle M\u00e9xico, Fuentes #17, esquina Av. San Fernando, colonia Tlalpan, CP 14000, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Isabel","family":"Bernardez-Zapata","sequence":"additional","affiliation":[{"name":"Unidad de Cuidados Neonatales, Hospital Espa\u00f1ol de M\u00e9xico, Ejercito Nacional 613, C-302 colonia Granada, CP 11520, Mexico"},{"name":"Departamento de Postgrado, Escuela de Medicina Universidad La Salle M\u00e9xico, Fuentes #17, esquina Av. San Fernando, colonia Tlalpan, CP 14000, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jos\u00e9","family":"Ram\u00edrez-Haua","sequence":"additional","affiliation":[{"name":"Unidad de Cuidados Neonatales, Hospital Espa\u00f1ol de M\u00e9xico, Ejercito Nacional 613, C-302 colonia Granada, CP 11520, Mexico"},{"name":"Departamento de Postgrado, Escuela de Medicina Universidad La Salle M\u00e9xico, Fuentes #17, esquina Av. San Fernando, colonia Tlalpan, CP 14000, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rocco","family":"Gonz\u00e1lez-Mor\u00e1n","sequence":"additional","affiliation":[{"name":"Unidad de Cuidados Neonatales, Hospital Espa\u00f1ol de M\u00e9xico, Ejercito Nacional 613, C-302 colonia Granada, CP 11520, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mario Enrique","family":"Rend\u00f3n-Mac\u00edas","sequence":"additional","affiliation":[{"name":"Departamento de Postgrado, Escuela de Medicina Universidad La Salle M\u00e9xico, Fuentes #17, esquina Av. San Fernando, colonia Tlalpan, CP 14000, Mexico"},{"name":"Unidad de Investigaci\u00f3n en Epidemiolog\u00eda Cl\u00ednica, UMAE Hospital de Pediatr\u00eda CMN siglo XXI, Instituto Mexicano del Seguro Social, Avenida Cuauhtemoc 330 colonia Doctores, CP 06720, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"98","reference":[{"key":"1","doi-asserted-by":"publisher","DOI":"10.1542\/peds.2008-0763"},{"issue":"7","key":"2","doi-asserted-by":"crossref","first-page":"725","DOI":"10.1001\/archpedi.154.7.725","volume":"154","year":"2000","journal-title":"Archives of Pediatrics and Adolescent Medicine"},{"key":"3","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpeds.2005.01.047"},{"key":"4","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2006.09.014"},{"issue":"6","key":"5","first-page":"457","volume":"10","year":"2008","journal-title":"Israel Medical Association Journal"},{"issue":"3","key":"6","doi-asserted-by":"crossref","first-page":"136","DOI":"10.5694\/j.1326-5377.2004.tb06203.x","volume":"181","year":"2004","journal-title":"Medical Journal of Australia"},{"issue":"2","key":"7","first-page":"130","volume":"40","year":"2003","journal-title":"Indian Pediatrics"},{"issue":"7","key":"8","first-page":"1323","volume":"90","year":"2007","journal-title":"Journal of the Medical Association of Thailand"},{"key":"9","first-page":"153","volume":"104","year":"2006","journal-title":"Archivos Argentinos de Pediatr\u00eda"},{"key":"10","first-page":"13","volume":"19","year":"2005","journal-title":"Perinatolog\u00eda y Reproducci\u00f3n Humana"},{"key":"11","first-page":"289","volume":"76","year":"2005","journal-title":"Archivos de Pediatr\u00eda del Uruguay"},{"key":"12","first-page":"313","volume":"77","year":"2001","journal-title":"Pediatria (S\u00e3o Paulo)"},{"key":"13","doi-asserted-by":"crossref","first-page":"29","DOI":"10.1542\/peds.2006-1472","volume":"119","year":"2007","journal-title":"Pediatrics"},{"key":"14","doi-asserted-by":"publisher","DOI":"10.1542\/peds.113.4.781"},{"key":"15","doi-asserted-by":"publisher","DOI":"10.1016\/j.jhin.2008.01.016"},{"key":"16","doi-asserted-by":"crossref","first-page":"165","DOI":"10.1016\/S0304-5013(05)72376-1","volume":"48","year":"2005","journal-title":"Progresos de Obstetricia y Ginecolog\u00eda"},{"key":"19","doi-asserted-by":"publisher","DOI":"10.1542\/peds.113.5.1223"},{"key":"21","doi-asserted-by":"publisher","DOI":"10.1542\/peds.113.6.1559"},{"issue":"4","key":"17","first-page":"283","volume":"45","year":"2003","journal-title":"Turkish Journal of Pediatrics"},{"key":"18","doi-asserted-by":"publisher","DOI":"10.1542\/peds.2004-1482"},{"key":"20","doi-asserted-by":"publisher","DOI":"10.1016\/S0301-2115(03)00328-2"}],"container-title":["International Journal of Pediatrics"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/ijpedi\/2010\/265146.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/ijpedi\/2010\/265146.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/ijpedi\/2010\/265146.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,6,14]],"date-time":"2020-06-14T22:06:13Z","timestamp":1592172373000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.hindawi.com\/journals\/ijpedi\/2010\/265146\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2010]]},"references-count":21,"alternative-id":["265146","265146"],"URL":"https:\/\/doi.org\/10.1155\/2010\/265146","relation":{},"ISSN":["1687-9740","1687-9759"],"issn-type":[{"value":"1687-9740","type":"print"},{"value":"1687-9759","type":"electronic"}],"subject":[],"published":{"date-parts":[[2010]]}}}