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Journal of Perinatal Medicine

Official Journal of the World Association of Perinatal Medicine

Editor-in-Chief: Dudenhausen, Joachim W.

Editorial Board Member: / Bancalari, Eduardo / Greenough, Anne / Genc, Mehmet R. / Chervenak, Frank A. / Chappelle, Joseph / Bergmann, Renate L. / Bernardes, J.F. / Bevilacqua, G. / Blickstein, Isaac / Cabero Roura, Luis / Carbonell-Estrany, Xavier / Carrera, Jose M. / D`Addario, Vincenzo / D'Alton, MD, Mary E. / Dimitrou, G. / Grunebaum, Amos / Hentschel, Roland / Köpcke, W. / Kawabata, Ichiro / Keirse, M.J.M.C. / Kurjak M.D., Asim / Levene, Malcolm / Lockwood, Charles J. / Marsal, Karel / Makatsariya, Alexander / Nishida, Hiroshi / Papp, Zoltán / Pejaver, Ranjan Kumar / Pooh, Ritsuko K. / Romero, Roberto / Saugstad, Ola D. / Schenker, Joseph G. / Sen, Cihat / Seri, Istvan / Vetter, Klaus / Winn, Hung N. / Young, Bruce K. / Zimmermann, Roland

6 Issues per year

IMPACT FACTOR 2013: 1.425

SCImago Journal Rank (SJR): 0.782
Source Normalized Impact per Paper (SNIP): 0.928



Survival and major disability rate in infant born at 22–25 weeks of gestation

Carlo Dani1 / Chiara Poggi1 / Costantino Romagnoli2 / Giovanna Bertini1

1Department of Surgical and Medical Critical Care, Section of Neonatology, Careggi University Hospital of Florence, Florence, Italy

2Division of Neonatology, Catholic University of the Sacred Heart, Rome, Italy

Corresponding author: Carlo Dani, MD Division of Neonatology Careggi University Hospital University of Florence School of Medicine Viale Morgagni 85 Firenze Italy Tel.: +39 055 4277 428 Fax: +39 055 4277 428

Citation Information: Journal of Perinatal Medicine. Volume 37, Issue 6, Pages 599–608, ISSN (Online) 1619-3997, ISSN (Print) 0300-5577, DOI: 10.1515/JPM.2009.117, July 2009

Publication History

Published Online:


Our aim was to evaluate the literature on survival and major disability rate in preterm infants born at 22– 25 weeks of gestational age (GA). Thirty-three studies were identified and reviewed. Survival was lower in population-based studies (2% at 22, 13% at 23, 35% at 24, and 56% at 25 weeks) than in center-based study (15% at 22, 41% at 23, 58% at 24, and 74% at 25 weeks). The severe disability rate was slightly higher in population-based studies than in center-based studies at 23 (29 vs. 32%) and at 24 (30 vs. 27%) week of GA, whereas it was similar in population and center-based studies at 25 (21 vs. 22%) weeks of GA. Survival rate seems to improve with time, whereas the change of severe disability rate cannot be adequately evaluated due to the paucity of available data. We conclude that the survival of infants born at 22 weeks is still an uncommon event, whereas the survival of infants born at 23, and mostly at 24 and 25 weeks of GA is significant in the majority of studies.

Keywords: Mortality; neurodisability; outcome; preterm infant

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