%0 Journal Article %1 Weber2005 %A Weber, Christina %A Weninger, Manfred %A Klebermass, Katrin %A Reiter, Gernot %A Wiesinger-Eidenberger, Gabriele %A Brandauer, Mathias %A Kraschl, Raimund %A Lingitz, Karl %A Grassl-Jurek, Renate %A Sterniste, Walter %A Balluch, Bernd %A Kolmer, Micha %A Bruckner, Robert %A Schweintzger, Gerolf %A Salzer, Hans %A Rath, Irene %A Kubitsch, Peter %A Zissler, Werner %A M?ller, Wilhelm %A Urlesberger, Berndt %D 2005 %J Wien Klin Wochenschr %K Age Distribution; Birth Weight; Cerebral Palsy; Cohort Studies; Comorbidity; Female; Gestational Age; Humans; Infant, Newborn; Premature, Diseases; Male; Premature Birth; Prevalence; Registries; Retrospective Risk Assessment; Factors; Sex Survival Analysis; Rate %N 21-22 %P 740--746 %R 10.1007/s00508-005-0468-y %T Mortality and morbidity in extremely preterm infants (22 to 26 weeks of gestation): Austria 1999-2001. %U http://dx.doi.org/10.1007/s00508-005-0468-y %V 117 %X OBJECTIVE: The aim of this retrospective study was to analyze the mortality and morbidity for extremely preterm infants with a gestational age from 22 to 26 weeks. All infants were born in Austria during the years 1999-2001. METHODS: Data were collected from 16 neonatal intensive care units in Austria. Main outcome criteria were mortality, the rates of chronic lung disease (CLD) and severe retinopathy of prematurity (ROP, stage > or =3) to determine the short-term outcome; the rate of cerebral palsy (CP) at the corrected age of twelve months to assess the long-term outcome. RESULTS: Overall, 796 preterm infants with a gestational age less than 27 weeks were born in Austria and 581 (73\%) were registered as live-born infants. Of those live born, 508 (87\%) were analyzed. The mortality rates were 83\%, 76\%, 43\%, 26\% and 13\% for 22, 23, 24, 25 and 26 weeks' gestation, respectively. The rates of CLD were 33\% (22 weeks), 36\% (23 weeks), 42\% (24 weeks), 31\% (25 weeks) and 22\% (26 weeks). The rates of ROP of stage > or =3 were 0\% (22 weeks), 29\% (23 weeks), 23\% (24 weeks), 18\% (25 weeks) and 10\% (26 weeks). The rates of CP at the corrected age of 12 months were 33\%, 50\%, 33\%, 26\% and 25\% for 22, 23, 24, 25 and 26 weeks' gestation, respectively. CONCLUSIONS: The results of this national study are in accordance with the international literature: mortality and morbidity increased with decreasing gestational age.

@article{Weber2005, abstract = {OBJECTIVE: The aim of this retrospective study was to analyze the mortality and morbidity for extremely preterm infants with a gestational age from 22 to 26 weeks. All infants were born in Austria during the years 1999-2001. METHODS: Data were collected from 16 neonatal intensive care units in Austria. Main outcome criteria were mortality, the rates of chronic lung disease (CLD) and severe retinopathy of prematurity (ROP, stage > or =3) to determine the short-term outcome; the rate of cerebral palsy (CP) at the corrected age of twelve months to assess the long-term outcome. RESULTS: Overall, 796 preterm infants with a gestational age less than 27 weeks were born in Austria and 581 (73\%) were registered as live-born infants. Of those live born, 508 (87\%) were analyzed. The mortality rates were 83\%, 76\%, 43\%, 26\% and 13\% for 22, 23, 24, 25 and 26 weeks' gestation, respectively. The rates of CLD were 33\% (22 weeks), 36\% (23 weeks), 42\% (24 weeks), 31\% (25 weeks) and 22\% (26 weeks). The rates of ROP of stage > or =3 were 0\% (22 weeks), 29\% (23 weeks), 23\% (24 weeks), 18\% (25 weeks) and 10\% (26 weeks). The rates of CP at the corrected age of 12 months were 33\%, 50\%, 33\%, 26\% and 25\% for 22, 23, 24, 25 and 26 weeks' gestation, respectively. CONCLUSIONS: The results of this national study are in accordance with the international literature: mortality and morbidity increased with decreasing gestational age.}, added-at = {2014-07-19T21:54:21.000+0200}, author = {Weber, Christina and Weninger, Manfred and Klebermass, Katrin and Reiter, Gernot and Wiesinger-Eidenberger, Gabriele and Brandauer, Mathias and Kraschl, Raimund and Lingitz, Karl and Grassl-Jurek, Renate and Sterniste, Walter and Balluch, Bernd and Kolmer, Micha and Bruckner, Robert and Schweintzger, Gerolf and Salzer, Hans and Rath, Irene and Kubitsch, Peter and Zissler, Werner and M?ller, Wilhelm and Urlesberger, Berndt}, biburl = {https://www.bibsonomy.org/bibtex/2204491592b9ce15b57a1867f60aab210/ar0berts}, doi = {10.1007/s00508-005-0468-y}, groups = {public}, interhash = {6e4182e956305d504e77118782435c47}, intrahash = {204491592b9ce15b57a1867f60aab210}, journal = {Wien Klin Wochenschr}, keywords = {Age Distribution; Birth Weight; Cerebral Palsy; Cohort Studies; Comorbidity; Female; Gestational Age; Humans; Infant, Newborn; Premature, Diseases; Male; Premature Birth; Prevalence; Registries; Retrospective Risk Assessment; Factors; Sex Survival Analysis; Rate}, month = Nov, number = {21-22}, pages = {740--746}, pmid = {16416355}, timestamp = {2014-07-19T21:54:21.000+0200}, title = {Mortality and morbidity in extremely preterm infants (22 to 26 weeks of gestation): Austria 1999-2001.}, url = {http://dx.doi.org/10.1007/s00508-005-0468-y}, username = {ar0berts}, volume = 117, year = 2005 }