Vetenskapliga publikationer (148)

Neonatal Outcomes After COVID-19 Vaccination in Pregnancy.

Mikael Norman, Maria C. Magnus, Jonas Söderling, Petur B. Juliusson, Lars Navér, Anne K. Örtqvist, Siri Håberg, Olof Stephansson.

JAMA. 2024;331(5):396-407. doi:10.1001/jama.2023.26945

Prediction of 2-Year Cognitive Outcomes in Very Preterm Infants Using Machine Learning Methods.

Bowe AK, Lightbody G, Staines A, Murray DM, Norman M.

JAMA Network Open 2023 Dec 1;6(12):e2349111. doi: 10.1001/jamanetworkopen.2023.49111.

Parental Experiences of Neonatal Care: A Nationwide Study on Determinants of Excellence.

Linnér A, Thernström Blomqvist Y, Jonsson K, Lillieskiöld S, Norman M.

Neonatology, October 16. DOI:10.1159/000533900.

Treatment for retinopathy of prematurity in Sweden 2008-2021: Reduced gestational age of treated infants and remaining differences in treatment type and recurrence rates between hospitals.

Holmström G, Hellström A, Teär Fahnehjelm K, Gränse L, Sandgren Hochhard K, Sunnqvist B, Tornqvist K, Tsamadou D, Wallin A, Larsson E.

Acta Ophthalmol. 2023 Sep 12. doi: 10.1111/aos.15751. Online ahead of print.

A follow up on the feasibility after national implementation of magnesium sulfate for neuroprotection prior to preterm birth.

Sara Hellström, Andrea Jonsdotter, Maria Jonsson, Karin Pettersson, Sissel Saltvedt, Andreas Herbst, Johan Ågren, Ulrika Ådén, Magnus Domellöf, Henrik Hagberg, Ylva Carlsson.

Acta Obstet Gynecol Scand. 2023 Sep 8. doi: 10.1111/aogs.14673. Online ahead of print

Term-born infants with a perinatal stroke frequently had seizures and were prescribed anti-seizure medication at discharge.

Alice Barsch Bergqvist, Eleni Simatou, Beatrice Skiöld, Ayoub Mitha, Jenny Bolk.

Acta Paediatrica 2023 Sep;112(9):1907-1915.

One-year survival and outcomes of infants born at 22 and 23 weeks of gestation in Sweden 2004–2007, 2014–2016 and 2017–2019.

Aijaz Farooqi, Stellan Hakansson, Fredrik Serenius, Karin Kallen, Lars Björklund, Erik Normann, Magnus Domellöf, Ulrika Ådén, Thomas Abrahamsson, Anders Elfvin, Karin Sävman, Petra Um Bergström, Olof Stephansson, David Ley, Lena Hellstrom-Westas, Mikael Norman.

Archives of Diseases in Childhood, Fetal & neonatal Edn. 2023, June 8 on-line before print. doi: 10.1136/archdischild-2022-325164

Outcomes in children after mild neonatal hypoxic ischaemic encephalopathy: A population-based cohort study.

Anna E Törn, Susanne Hesselman, Kine Johansen, Johan Ågren, Anna-Karin Wikström, Maria Jonsson.

BJOG 2023 Dec;130(13):1602-1609. doi: 10.1111/1471-0528.17533.

The association between undetected small-for-gestational age and abnormal admission cardiotocography: A registry-based study.

Gyllencreutz E, Varli IH, Johansson K, Lindqvist PG, Holzmann M.

Brit J Obstet Gynecol 2023 Apr 25. doi: 10.1111/1471-0528.17504.

Surgical management of necrotising enterocolitis in Sweden: A national cohort study

Svenningsson A, Borg H, Hagander L, Engstrand Lilja H.

Acta Paediatrica 2023 May 11. doi: 10.1111/apa.16836. Online ahead of print.

Trends, characteristic and outcomes of preterm infants who received postnatal corticosteroids- a cohort study from 7 high-income countries.

Parikh S, Reichman B, Kusuda S, Adams M, Lehtonen L, Vento M, Norman M, San Feliciano L, Isayama T, Hakansson S, Helenius K, Bassler D, Yang J, Shah PS.

Neonatology 2023, April 25, on-line before print, DOI: 10.1159/000530128.

Preterm birth in the Nordic countries-Capacity, management and outcome in neonatal care.

Norman M, Padkaer Petersen J, Stensvold HJ, Thorkelsson T, Helenius K, Brix Andersson C, Ørum Cueto H, Domellöf M, Gissler M, Heino A, Håkansson S, Jonsson B, Klingenberg C, Lehtonen L, Metsäranta M, Rønnestad AE, Trautner S.

Acta Paediatr. 2023 Jul;112(7):1422-1433. doi: 10.1111/apa.16753. Epub 2023 Mar 21.

Low Apgar score and need for resuscitation increased the probability of receiving therapeutic hypothermia more strongly than acidosis at birth

Ida Lagerström, Dalia Daugeliene, Jenny Bolk, Sven Cnattingius, Beatrice Skiöld, Maria Altman, Stefan Johansson.

Acta Paediatrica 2023 Apr;112(4):667-674.

The Stockholm–Gotland perinatal cohort—A population-based cohort including longitudinal data throughout pregnancy and the postpartum period.

Kari Johansson, Michaela Granfors, Gunnar Petersson, Jenny Bolk, Maria Altman, Sven Cnattingius, Xingrong Liu, Anna Sandström, Olof Stephansson.

Paediatr Perinat Epidemiol 2023 May;37(4):276-286.

Patterns of Respiratory Support by Gestational Age in Very Preterm Infants.

Norman M, Jonsson B, Söderling J, Björklund LJ, Håkansson S.

Neonatology. 2022 Dec 9:1-11. doi: 10.1159/000527641. Online ahead of print.

Infants Born to Mothers Who Were SARS-CoV-2 Positive during Pregnancy and Admitted to Neonatal Intensive Care Unit.

Shah PS, Joynt C, Håkansson S, Narvey M, Navér L, Söderling J, Yang J, Beltempo M, Stephansson O, Fell DB, Money D, Ting JY, Norman M

Neonatology. 2022 Sep 9:1-10. doi: 10.1159/000526313. Online ahead of print.

Neonatal Morbidities and Feeding Tolerance Outcomes in Very Preterm Infants, before and after Introduction of Probiotic Supplementation.

Mitha A, Kruth SS, Bjurman S, Rakow A, Johansson S.

Nutrients. 2022 Sep 3;14(17):3646. doi: 10.3390/nu14173646.

Neonatal morbidity after fetal exposure to antipsychotics: a national register-based study.

Heinonen E, Forsberg L, Nörby U, Wide K, Källén K.

BMJ Open 2022 Jun 29;12(6):e061328. doi: 10.1136/bmjopen-2022-061328

Higher parenteral electrolyte intakes in preterm infants during first week of life: Effects on electrolyte imbalances.

Späth C, Stoltz Sjöström E, Domellöf M.

J Pediatr Gastroenterol Nutr. 2022 Sep 1;75(3):e53-e59.

Initiation and duration of skin-to-skin contact for extremely and very preterm infants: A register study.

Linnér A, Lilliesköld S, Jonas W, Skiöld B.

Acta Paediatr. 2022 Sep;111(9):1715-1721. doi: 10.1111/apa.16433. Epub 2022 Jun 10.

Development and Validation of a Mortality Prediction Model in Extremely Low Gestational Age Neonates.

Moreira A, Benvenuto D, Fox-Good C, Alayli Y, Evans M, Jonsson B, Hakansson S, Harper N, Kim J, Norman M, Bruschettini M.

Neonatology. 2022 May 20:1-10. doi: 10.1159/000524729. Online ahead of print.

Respiratory support of infants born at 22-24 weeks of gestational age.

Norman M, Jonsson B, Wallström L, Sindelar R.

Semin Fetal Neonatal Med. 2022 Apr 1:101328. doi: 10.1016/j.siny.2022.101328. Online ahead of print.

Perinatal risk factors for mortality in very preterm infants - a nationwide, population-based discriminant analysis.

Norman M, Nilsson D, Trygg J, Håkansson S.

Acta Paediatr. 2022 Apr 9. doi: 10.1111/apa.16356. Online ahead of print.

Association of SARS-CoV-2 Vaccination During Pregnancy With Pregnancy Outcomes.

Magnus MC, Örtqvist AK, Dahlqwist E, Ljung R, Skår F, Oakley L, Macsali F, Pasternak B, Gjessing HK, Håberg SE, Stephansson O.

JAMA. 2022 Apr 19;327(15):1469-1477. doi: 10.1001/jama.2022.3271.

Validation of central nervous system-induced seizures and other neurological variables in the Swedish Neonatal Quality Register.

Westergren H, Marell Hesla H, Altman M, Wickström R.

Acta Paediatr. 2022 Mar 17. doi: 10.1111/apa.16336. Online ahead of print.

Risk factors for seizures in the vigorous term neonate: A population-based register study of singleton births in Sweden.

Malin Dickmark, Johan Ågren, Lena Hellström-Westas, Maria Jonsson.

PLoS One. 2022 Feb 17;17(2):e0264117. doi: 10.1371/journal.pone.0264117. eCollection 2022.

The Swedish Neonatal Network for Outcomes Improvement.

Norman M, Håkansson S.

Pediatric Medicine 2021 |

Implementation of new classification for intrapartum fetal heart rate monitoring and birth outcome: a national cohort study.

Jonsson M, Söderling J, Ladfors L, Nordström L, Nilsson M, Algovik M, Norman M, Holzmann M.

Acta Obstet Gynecol Scand. 2022 Feb;101(2):183-192. doi: 10.1111/aogs.14296.

International Variation in the Management of Patent Ductus Arteriosus and Its Association with Infant Outcomes: A Survey and Linked Cohort Study

Tetsuya Isayama, Satoshi Kusuda, Mark Adams, Elettra Berti, Malcom Battin, Kjell Helenius, Stellan Håkansson, Max Vento, Mikael Norman, Brian Reichman, Akihiko Noguchi, Shoo K Lee, Dirk Bassler, Kei Lui, Liisa Lehtonen, Junmin Yang, Prakesh S Shah.

J Pediatrics 2022 Jan 4;S0022-3476(21)01278-6. doi: 10.1016/j.jpeds.2021.12.071.

Amino acid infusions in umbilical artery catheters enhance protein administration in infants born at extremely low gestational age.

Gialamas S, Stoltz Sjöström E, Diderholm B, Domellöf M, Ahlsson F.

Acta Paediatr. 2021 Nov 25. doi: 10.1111/apa.16196. Online ahead of print.

Five-minute Apgar score and outcomes in neonates of 24-28 weeks' gestation.

Shah PS, Norman M, Rusconi F, Kusuda S, Reichman B, Battin M, Bassler D, Modi N, Hakansson S, Yang J, Lee SK, Helenius K, Vento M, Lehtonen L, Adams M, Isayama T, Lui K, Gagliardi L

Arch Dis Child Fetal Neonatal Ed. 2021 Nov 15:fetalneonatal-2021-322230. doi: 10.1136/archdischild-2021-322230.

SARS-CoV-2 and pregnancy outcomes under universal and non-universal testing in Sweden: register-based nationwide cohort study.

Stephansson O, Pasternak B, Ahlberg M, Hervius Askling H, Aronsson B, Appelqvist E, Jonsson J, Sengpiel V, Söderling J, Norman M, Ludvigsson JF, Neovius M

BJOG. 2021 Oct 27:10.1111/1471-0528.16990. doi: 10.1111/1471-0528.16990.

Association of Adherence to Surfactant Best Practice Uses With Clinical Outcomes Among Neonates in Sweden.

Challis P, Nydert P, Håkansson S, Norman M.

JAMA Netw Open. 2021 May 3;4(5):e217269. doi: 10.1001/jamanetworkopen.2021.7269.

Association of maternal SARS-CoV-2 infection in pregnancy with neonatal outcomes.

Norman M, Navér L, Söderling J, Ahlberg M, Hervius Askling H, Aronsson B, Byström E, Jonsson J, Sengpiel V, Ludvigsson JF, Håkansson S, Stephansson O.

JAMA. 2021 Apr 29. doi: 10.1001/jama.2021.5775. Online ahead of print

Association between travel time to delivery unit and unplanned out-of-hospital birth, infant morbidity and mortality: A population-based cohort study.

Anne K Örtqvist, Jan Haas, Mia Ahlberg, Mikael Norman, Olof Stephansson.

Acta Obstet Gynecol Scand. 2021 Aug;100(8):1478-1489. doi: 10.1111/aogs.14156.

Variations in Neonatal Length of Stay of Babies Born Extremely Preterm: An International Comparison Between iNeo Networks.

Seaton SE, Draper ES, Adams M, Kusuda S, Håkansson S, Helenius K, Reichman B, Lehtonen L, Bassler D, Lee SK, Vento M, Darlow BA, Rusconi F, Beltempo M, Isayama T, Lui K, Norman M, Yang J, Shah PS, Modi N

J Pediatr. 2021 Jun;233:26-32.e6. doi: 10.1016/j.jpeds.2021.02.015.

The Risk of Necrotizing Enterocolitis following the Administration of Hyperosmolar Enteral Medications to Extremely Preterm Infants.

Latheef F, Wahlgren H, Lilja HE, Diderholm B, Paulsson M.

Neonatology. 2021;118(1):73-79. doi: 10.1159/000513169.

Intercenter variability in neonatal outcomes of extremely preterm infants: A longitudinal evaluation of 298 neonatal units in 11 countries.

Lui K, Vento M, Modi N, Kusuda S, Lehtonen L, Håkansson S, Rusconi F, Bassler D, Reichman B, Yang J, Shah PS; International Network for Evaluating Outcomes of Neonates (iNeo) Investigators and Collaborators.

Semin Fetal Neonatal Med. 2021 Jan 21:101196. doi: 10.1016/j.siny.2021.101196. Online ahead of print.

Preterm Birth and Stillbirth During the COVID-19 Pandemic in Sweden.

Pasternak B, Neovius M, Söderling J, Ahlberg M, Norman M, Ludvigsson JF, Stephansson O.

Annals of Internal Medicine 2021, Jan 12;M20-6367. doi: 10.7326/M20-6367.

Right heart structure, geometry and function assessed by echocardiography in 6-year-old children born extremely preterm – a population-based cohort study.

Mohlkert LA, Sjöberg G, Broberg O, Rydberg A, Liuba P, Fellman V, Domellöf M, Hallberg J, Norman M, Pegelow Halvorsen C.

Journal of Clinical Medicine 2021, 10(1), 122; doi:10.3390/jcm10010122.

C-reactive protein- and clinical symptoms-guided strategy in term neonates with early-onset sepsis reduced antibiotic use and hospital stay: a quality improvement initiative

Gyllensvärd J, Ingemansson F, Hentz E, Studahl M, Elfvin A

BMC Pediatrics 2020 Nov 20;20(1):531. doi: 10.1186/s12887-020-02426-w.

Physical Activity in 6.5-Year-Old Children Born Extremely Preterm.

Svedenkrans J, Ekblom Ö, Domellöf M, Fellman V, Norman M, Bohlin K.

J Clin Med. 2020 Oct 4;9(10):3206. doi: 10.3390/jcm9103206.

The type and timing of patent ductus arteriosus treatment was associated with neurodevelopment when extremely preterm infants reached 6.5 years.

Gudmundsdottir A, Broström L, Skiöld B, Källén K, Serenius F, Norman M, Ådén U, Bonamy AE.

Acta Paediatrica 2020 Jun 30. doi: 10.1111/apa.15452. Online ahead of print

Family Rooms in NICUs and Neonatal Outcomes: An International Survey and Linked Cohort Study.

Lehtonen L, Lee SK, Kusuda S, Lui K, Norman M, Bassler D, Håkansson S, Vento M, Darlow BA, Adams M, Puglia M, Isayama T, Noguchi A, Morisaki N, Helenius K, Reichman B, Shah PS; International Network for Evaluating Outcomes of Neonates (iNeo)

J Pediatr. 2020 Jun 7:S0022-3476(20)30710-1. doi: 10.1016/j.jpeds.2020.06.009. Online ahead of print.

Neonatal Outcomes of Extremely Preterm Twins by Sex Pairing: An International Cohort Study.

Luigi Gagliardi, Franca Rusconi, Brian Reichman, Mark Adams, Neena Modi, Liisa Lehtonen, Satoshi Kusuda, Maximo Vento, Brian A Darlow, Dirk Bassler, Tetsuya Isayama, Mikael Norman, Stellan Håkansson, Shoo K Lee Kei Lui, Junmin Yang, Prakeshkumar Shah.

Arch Dis Child Fetal Neonatal Ed. 2020 May 25;fetalneonatal-2020-318832. doi: 10.1136/archdischild-2020-318832. Online ahead of print

Neonatal Intensive Care Unit-Level Patent Ductus Arteriosus Treatment Rates and Outcomes in Infants Born Extremely Preterm.

Isayama T, Kusuda S, Reichman B, Lee SK, Lehtonen L, Norman M, Adams M, Bassler D, Helenius K, Hakansson S, Yang J, Jain A, Shah PS; International Network for Evaluating Outcomes of Neonates (iNeo) Investigators.

J Pediatr. 2020 May;220:34-39.e5. doi: 10.1016/j.jpeds.2020.01.069. Epub 2020 Mar 4.

Neonatal Outcomes in Very Preterm Infants With Severe Congenital Heart Defects: An International Cohort Study.

Norman M, Håkansson S, Kusuda S, Vento M, Lehtonen L, Reichman B, Darlow BA, Adams M, Bassler D, Isayama T, Rusconi F, Lee S, Lui K, Yang J, Shah PS.

J Am Heart Assoc. 2020 Mar 3;9(5):e015369. doi: 10.1161/JAHA.119.015369. Epub 2020 Feb 21.

Individual Risk Prediction for Sight-Threatening Retinopathy of Prematurity Using Birth Characteristics.

Pivodic A, Hård AL, Löfqvist C, Smith LEH, Wu C, Bründer MC, Lagrèze WA, Stahl A, Holmström G, Albertsson-Wikland K, Johansson H, Nilsson S, Hellström A.

JAMA Ophthalmol. 2019 Nov 7:1-9

New modifications of Swedish ROP guidelines based on 10-year data from the SWEDROP register.

Holmström G, Hellström A, Gränse L, Saric M, Sunnqvist B, Wallin A, Tornqvist K, Larsson E.

British Journal of Ophthalmology. 2019 Nov 1. pii: bjophthalmol-2019-314874. doi: 10.1136/bjophthalmol-2019-314874. [Epub ahead of print]

Survey shows marked variations in approaches to redirection of care for critically ill very preterm infants in 11 countries.

Helenius K, Morisaki N, Kusuda S, Shah PS, Norman M, Lehtonen L, Reichman B, Darlow BA, Noguchi A, Adams M, Bassler D, Håkansson S, Isayama T, Berti E, Lee SK, Vento M, Lui K; International Network for Evaluation of Outcomes of neonates (iNeo).

Acta Paediatr. 2019 Oct 20. doi: 10.1111/apa.15069. [Epub ahead of print]

Preventive strategies and factors associated with surgically treated necrotising enterocolitis in extremely preterm infants: an international unit survey linked with retrospective cohort data analysis.

Adams M, Bassler D, Darlow BA, Lui K, Reichman B, Hakansson S, Norman M, Lee SK, Helenius KK, Lehtonen L, San Feliciano L, Vento M, Moroni M, Beltempo M, Yang J, Shah PS; International Network for EvaluatingOutcomes (iNeo) of Neonates.

BMJ Open. 2019 Oct 14;9(10):e031086. doi: 10.1136/bmjopen-2019-031086.

Diagnostic values of the femoral pulse palpation test.

Fatine Khammari Nystrom, Gunnar Petersson, Olof Stephansson, Stefan Johansson, Maria Altman.

Arch Dis Child Fetal Neonatal Ed 2020 Jul;105(4):375-379. doi: 10.1136/archdischild-2019-317066.

Att födas några veckor för tidigt - spelar det någon roll?

Bonnevier A, Björklund L, Elfvin A, Håkansson S, Altman M.

Läkartidningen. 2019;116:FSR7

Förtidsbörd största perinatal problemet.

Jacobsson B, Pettersson K, Modzelewska D, Abrahamsson T, Bergman L, Håkansson S.

Läkartidningen. 2019;116:FR6F

De flesta för tidigt födda barn får normal utveckling och god hälsa.

Ådén U, Sävman K, Norman M.

Läkartidningen. 2019;116:FR6D

Trends in Outcomes for Neonates Born Very Preterm and Very Low Birth Weight in 11 High-Income Countries

Lui K, Lee SK, Kusuda S, Adams M, Vento M, Reichman B, Darlow BA, Lehtonen L, Modi N, Norman M, Håkansson S, Bassler D, Rusconi F, Lodha A, Yang J, Shah PS.

J Pediatrics 2019 Oct 3. pii: S0022-3476(19)31055-8. doi: 10.1016/j.jpeds.2019.08.020.

Unit-Level Variations in Healthcare Professionals' Availability for Preterm Neonates <29 Weeks' Gestation: An International Survey.

Shahroor M, Lehtonen L, Lee SK, Håkansson S, Vento M, Darlow BA, Adams M, Mori A, Lui K, Bassler D, Morisaki N, Modi N, Noguchi A, Kusuda S, Beltempo M, Helenius K, Isayama T, Reichman B, Shah PS.

Neonatology. 2019;116(4):347-355

Lung function and pulmonary vascular resistance are not associated in 6-year-old children born extremely preterm.

Mohlkert LA, Sjöberg G, Rydberg A, Pegelow Halvorsen C, Tufvesson E, Hallberg J, Domellöf M, Norman M.

Acta Paediatr. 2019 Sep 26. doi: 10.1111/apa.15030.

The Uppsala-Stockholm Assisted Reproductive Techniques (UppStART) study

Iliadou AN, Öberg AS, Pege J, Rodriguez-Wallberg KA, Olofsson JI, Holte J, Wramsby H, Wramsby M, Cnattingius S, Cesta CE.

BMJ Open. 2019 Aug 28;9(8):e028866. doi: 10.1136/bmjopen-2018-028866.

The International Network for Evaluating Outcomes (iNeo) of neonates: evolution, progress and opportunities.

Shah PS, Lui K, Reichman B, Norman M, Kusuda S, Lehtonen L, Adams M, Vento M, Darlow BA, Modi N, Rusconi F, Håkansson S, San Feliciano L, Helenius KK, Bassler D, Hirano S, Lee SK.

Transl Pediatr. 2019 Jul;8(3):170-181. doi: 10.21037/tp.2019.07.06.

The Swedish Neonatal Quality Register (SNQ) - contents, completeness and validity.

Mikael Norman, Karin Källén, Erik Wahlström, Stellan Håkansson & the SNQ Collaboration.

Acta Paediatr. 2019 Apr 21. doi: 10.1111/apa.14823. [Epub ahead of print]

Adherence to oxygen saturation targets increased in preterm infants when a higher target range and tighter alarm limits were introduced

S Klevebro, U Hammar, G Holmström, M Bottai, A Hellström, B Hallberg

Acta Paediatrica 2019 Sep;108(9):1584-1589

Association between year of birth and one-year survival among extremely preterm infants in Sweden, 2004-2007 and 2014-2016

Norman M, Hallberg B, Abrahamsson T, Björklund LJ, Domellöf M, Farooqi A, Foyn Bruun C, Gadsbøll C, Hellström Westas L, Ingemansson F, Källén K, Ley D, Maršál K, Normann E, Serenius F, Stephansson O, Stigson L, Um-Bergström P, Håkansson, S.

JAMA. 2019;321(12):1188-1199. doi:10.1001/jama.2019.2021

Neonatal and maternal outcome after frozen embryo transfer: Increased risks in programmed cycles.

Ginström Ernstad E, Wennerholm UB, Khatibi A, Petzold M, Bergh C.

Am J Obstet Gynecol. 2019 Aug;221(2):126.e1-126.e18. doi: 10.1016/j.ajog.2019.03.010.

Rates of Extreme Neonatal Hyperbilirubinemia and Kernicterus in Children and Adherence to National Guidelines for Screening, Diagnosis, and Treatment in Sweden

Alkén J, Håkansson S, Ekéus C, Gustafsson P, Norman M

JAMA Network Open 2019;2(3):e190858. doi:10.1001/jamanetworkopen.2019.0858

Use of Concentrated Parenteral Nutrition Solutions Is Associated With Improved Nutrient Intakes and Postnatal Growth in Very Low-Birth-Weight Infants.

Späth C, Zamir I, Sjöström ES, Domellöf M.

J Parenter Enteral Nutr. 2019 Feb 12. doi: 10.1002/jpen.1522. [Epub ahead of print]

Prevalence of Severe Visual Disability Among Preterm Children with Retinopathy of Prematurity and Association With Adherence to Best Practice Guidelines.

Norman M, Hellström A, Hallberg B, Wallin A, Gustafson P, Tornqvist K, Håkansson S, Holmström G.

JAMA Network Open Jan 4, 2019, 2(1): e186801, doi:10.1001/jamanetworkopen.2018.6801.

Reduced rate of treated retinopathy of prematurity after implementing lower oxygen saturation targets

Fanny Söderström, Erik Normann, Gerd Holmström, Eva Larsson, Fredrik Ahlsson, Richard Sindelar, Johan Ågren

Journal of Perinatology 2019, 39: 409–414

Neonatal outcomes of very preterm or very low birth weight triplets

Shah, PS, Kusuda S, Håkansson S, Reichman B, Lui K, Lehtonen L, Modi N, Vento M, Adams M, Rusconi F, Norman M, Darlow BA, Lodha A, Yang J, Bassler D, Helenius KK, Isayama T, Lee SK

Pediatrics 2018;142:e20181938

Low Diversity of Human Milk Oligosaccharides is Associated with Necrotising Enterocolitis in Extremely Low Birth Weight Infants.

Wejryd E, Martí M, Marchini G, Werme A, Jonsson B, Landberg E, Abrahamsson TR.

Nutrients. 2018 Oct20;10(10). pii: E1556. doi: 10.3390/nu10101556.

Validation of the diagnosis of necrotising enterocolitis in a Swedish population-based observational study.

Challis P, Larsson L, Stoltz Sjöström E, Serenius F, Domellöf M, Elfvin A.

Acta Paediatr. 2019 May;108(5):835-841. doi: 10.1111/apa.14585. Epub 2018 Oct 9.

The Swedish Approach to Management of Extreme Prematurity at the Borderline of Viability: A Historical and Ethical Perspective.

Domellöf M, Jonsson B.

Pediatrics. 2018 Sep;142(Suppl 1):S533-S538. doi: 10.1542/peds.2018-0478C.

Variations in Oxygen Saturation Targeting, and Retinopathy of Prematurity Screening and Treatment Criteria in Neonatal Intensive Care Units: An International Survey.

Darlow BA, Vento M, Beltempo M, Lehtonen L, Håkansson S, Reichman B, Helenius K, Sjörs G, Sigali E, Lee S, Noguchi A, Morisaki N, Kusuda S, Bassler D, San Feliciano L, Adams M, Isayama T, Shah PS, Lui K;

Neonatology. 2018;114(4):323-331. doi: 10.1159/000490372. Epub 2018 Aug 8.

Association of maternal diabetes with neonatal outcomes of very pretem and very low-birth-weight infants: an international cohort study.

Persson M, Shah PS, Rosconi F, Reichman B, Modi N, Kusoda S, Lehtonen L, Håkansson S, Yang J, Isayama T, Beltempo M, Lee S, Norman M.

JAMA Pediatrics. 2018 Sep 1;172(9):867-875. doi: 10.1001/jamapediatrics.2018.1811.

Early energy and protein intakes and associations with growth, BPD, and ROP in extremely preterm infants

Susanna Klevebro , Vera Westin, Elisabeth Stoltz Sjöström, Mikael Norman, Magnus Domellöf, Anna-Karin Edstedt Bonamy, Boubou Hallberg

Clin Nutr 2019 Jun;38(3):1289-1295. doi: 10.1016/j.clnu.2018.05.012. Epub 2018 May 29.

Respiratory Management of Extremely Preterm Infants: An International Survey.

Beltempo M, Isayama T, Vento M, Lui K, Kusuda S, Lehtonen L, Sjörs G, Håkansson S, Adams M, Noguchi A, Reichman B, Darlow BA, Morisaki N, Bassler D, Pratesi S, Lee SK, Lodha A, Modi N, Helenius K, Shah PS

Neonatology 2018;114:28-36.

Improved nutrition for extremely preterm infants - A population based observational study.

Vera Westin, Susanna Klevebro, Magnus Domellöf, Mireille Vanpée, Boubou Hallberg, Elisabeth Stoltz Sjöström

Clin Nutr ESPEN 2018 Feb;23:245-251. doi: 10.1016/j.clnesp.2017.09.004.

Antepartum risk factors for moderate to severe neonatal hypoxic ischemic encephalopathy: a Swedish national cohort study.

Liljestrom L, Wikstrom AK, Ågren J, Jonsson M.

Acta Obstet Gynecol Scand 2018 May;97(5):615-623. doi: 10.1111/aogs.13316.

The Preterm Heart in Childhood: Left Ventricular Structure, Geometry, and Function Assessed by Echocardiography in 6-Year-Old Survivors of Periviable Births.

Mohlkert LA, Hallberg J, Broberg O, Rydberg A, Halvorsen CP, Liuba P, Fellman V, Domellöf M, Sjöberg G, Norman M.

J Am Heart Assoc. 2018 Jan 20;7(2). pii: e007742. doi: 10.1161/JAHA.117.007742.

Extreme prematurity, treated retinopathy, bronchpulmonary dysplasia and cerebral palsy are significant risk factors for ophtalmologic abnormalities at 6.5 years of age.

Hellström A, Källén K, Carlssson B, Holmström G, Jakobsson P, Lundgren P, Serenius F, Stjernqvist K, Tornqvist K, Hellgren K

Acta Paediatrica 2018;107:811-821.

Cerebral palsy in extremely preterm infants

Hafström M, Källén K, Serenius F, Marsal K, Rehn E, Drake H, Ådén U, Farooqi A, Thorngren-Jerneck K, Strömberg B

Pediatrics 2018;141:e20171433

Survival in Very Preterm Infants: An International Comparison of 10 National Neonatal Networks.

Helenius K, Sjörs G, Shah PS, Modi N, Reichman B, Morisaki N, Kusuda S, Lui K, Darlow BA, Bassler D, Håkansson S, Adams M, Vento M, Rusconi F, Isayama T, Lee SK, Lehtonen L; In-ternational Network for Evaluating Outcomes (iNeo) of Neonates.

Pediatrics. 2017 Nov 21. pii: e20171264. doi: 10.1542/peds.2017-1264.

Lung function after extremely preterm birth—A population-based cohort study (EXPRESS).

Thunqvist P, Tufvesson E, Bjermer L, Winberg A, Fellman V, Domellöf M, Melén E, Norman M, Hallberg J.

Pediatric Pulmonology 2018;53:64-72.

Perinatal Outcomes After Treatment With ADHD Medication During Pregnancy.

Nörby U, Winbladh B, Källén K.

Pediatrics. 2017 Nov 10. pii: e20170747. doi: 10.1542/peds.2017-0747.

Intracranial hemorrhages in neonates born from 32 weeks of gestation-low frequency of associated fetal and neonatal alloimmune thrombocytopenia: a register-based study.

Refsum E, Håkansson S, Mörtberg A, Wikman A, Westgren M.

Transfusion. 2018;58:223-231.

The effect of gestational age on clinical and radiological presentation of necrotizing enterocolitis.

Elena Palleri, Ida Aghamn, Tomas S Bexelius, Marco Bartocci, Tomas Wester.

J Pediatr Surg 2018 Sep;53(9):1660-1664. doi: 10.1016/j.jpedsurg.2017.09.018

Increased frequency of retinopathy of prematurity over the last decade and significant regional differences.

Holmström G, Tornqvist K, Al-Hawasi A, Nilsson Å, Wallin A, Hellström A.

JAMA Ophthalmol. 2017;135:854-861.

Reduced incidence of neonatal early-onset group B streptococcal infection after prom-ulgation of guidelines for risk-based intrapartum antibiotic prophylaxis in Sweden: analysis of a national population-based cohort.

Håkansson S, Lilja M, Jacobsson B, Källén K.

Acta Obstet Gynecol Scand. 2017 Aug 19. doi:10.1111/aogs.13211.

Blood pressure in 6-year-old children born extremely preterm

AK Edstedt Bonamy, LA Mohlkert, J Hallberg, P Liuba, V Fellman, M Domellöf, M Norman

J American Heart Association 2017 Aug 1;6(8). pii: e005858. doi: 10.1161/JAHA.117.005858

Comparing very low birth weight versus very low gestation cohort methods for out-come analysis of high risk preterm infants.

Lui K; Australian and New Zealand Neonatal Network; Canadian Neonatal Network; Swedish Neonatal Quality Register.

BMC Pediatr. 2017 Jul 14;17(1):166. doi: 10.1186/s12887-017-0921-x.

Reduction of Rod and Cone Function in 6.5-Year-Old Children Born Extremely Preterm.

Molnar AEC, Andréasson SO, Larsson EKB, Åkerblom HM, Holmström GE.

JAMA Ophthalmol. 2017;135:854-861.

Riktlinjer vid hotande förtidsbörd ska ge bättre och mer jämlik vård. Konsensusdoku-ment för enhetligt omhändertagande av gravida och extremt för tidigt födda barn.

Domellöf M, Pettersson K.

Läkartidningen 2017;114:772-4

Perinatal health services organization for preterm births: a multinational comparison

Kelly LE, Shah PS, Håkansson S, Kusuda S, Adams M, Lee SK, Sjörs G, Vento M, Rusconi F, Lehtonen L, Reichman B, Darlow BA, Lui, Feliciano LS, Gagliardi L, Bassler D, Modi N.

J Perinatol. 2017 Apr 6. doi: 10.1038/jp.2017.45. [Epub ahead of print]

Antenatal corticosteroid administration-to-birth interval and survival in extremely pre-term infants

Norberg H, Kowalski J, Marsal K, Norman M.

BJOG. 2017 Mar 15. doi: 10.1111/1471-0528.14545. [Epub ahead of print]

International variations and trends in the treatment for retinopathy of prematurity

Darlow BA, Lui K, Kusuda S, Reichman B, Håkansson S, Bassler D, Modi N, Lee SK, Lehto-nen L, Vento M, Isayama T, Sjörs G, Helenius KK, Adams M, Rusconi F, Morisaki N, Shah PS; International Network for Evaluating Outcomes of Neonates.

Br J Ophthalmol. 2017 Mar 7. pii: bjophthalmol-2016-310041. doi: 10.1136/bjophthalmol-2016-310041. [Epub ahead of print]

Case mix adjusted variation in cesarean section rate in Sweden.

Mesterton J, Ladfors L, Ekenberg Abreu A, Lindgren P, Saltvedt S, Weichselbraun M, Amer-Wåhlin I.

Acta Obstet Gynecol Scand 2017;96:597.

Preterm arteries in childhood: dimensions, intima-media thickness and elasticity of the aorta, coronaries and carotids in 6-year-old children born extremely preterm

Mohlkert LA, Broberg O, Hellström M, Pegelow-Halvorsen C, Hallberg J, Sjöberg G, Edstedt Bonamy AK, Liuba P, Fellman V, Domellöf M, Norman M.

Pediatric Research 2017 Feb;81(2):299-306. doi: 10.1038/pr.2016.212. Epub 2016 Oct 27

Central macular thickness in 6.5-year-old children born extremely preterm is strongly associated with gestational age even when adjusted for risk factors.

Molnar AEC, Rosén RM, Nilsson M, Larsson EKB, Holmström GE, Hellgren KM.

Retina. 2017 Dec;37(12):2281-2288.

Changes in the prevalence of breast feeding in preterm infants discharged from neona-tal units: a register study over 10 years.

Ericson, J. , Flacking, R. , Hellström-Westas, L. & Eriksson, M.

BMJ Open. 2016;6:e012900

Neonatal Morbidity After Maternal Use of Antidepressant Drugs During Pregnancy

Nörby U, Forsberg L, Wide K, Sjörs G, Winbladh B, Källén K.

Pediatrics. 2016 Nov;138(5). pii: e20160181.

Sodium supply influences plasma sodium concentration and the risks of hyper- and hy-ponatremia in extremely preterm infants.

Späth C, Sjöström ES, Ahlsson F, Ågren J, Domellöf M.

Pediatr Res. 2017;81:455-460.

Durations of second stage of labor and pushing, and adverse neonatal outcomes: a population-based cohort study

Sandström A, Altman M, Cnattingius S, Johansson S, Ahlberg M, Stephansson O.

J Perinatol. 2017 Mar;37(3):236-242. doi: 10.1038/jp.2016.214. Epub 2016 Dec 8.

Scoping review shows wide variation in the definitions of bronchopulmonary dysplasia in preterm infants and calls for a consensus.

Hines D, Modi N, Lee SK, et al. International Network for Evaluating Outcomes (iNeo) of Neo-nates.

Acta Paediatr. 2017;106:366-74.

Aggressive posterior retinopathy of prematurity is associated with multiple infectious episodes and thrombocytopenia.

Lundgren P, Lundberg L, Hellgren G, Holmström G, Hård AL, Smith LE, Wallin A, Hallberg B, Hellström A.

Neonatology. 2017;111:79-85.

Hypertensive disorders of pregnancy and outcomes of preterm infants of 24 to 28 weeks' gestation.

Gemmell L, Martin L, Murphy KE, Modi N, Håkansson S, Reichman B, Lui K, Kusuda S, Sjörs G, Mirea L, Darlow BA, Mori R, Lee SK, Shah PS.

J Perinatol. 2016 Dec;36(12):1067-1072. doi: 10.1038/jp.2016.133. Epub 2016 Sep 1.

Extremely Preterm Infants in Sweden Study Group. Neurodevelopmental Outcomes Among Extremely Preterm Infants 6.5 Years After Active Perinatal Care in Sweden.

Serenius F, Ewald U, Farooqi A, et al.

JAMA Pediatr. 2016;170:954-963.

Screening for retinopathy of prematurity can be started in postmenstrual week 31 in very premature babies!

Holmström G, Hellström A, Jakobsson P, et al.

Eye (Lond). 2016;30:1524-1525.

Case mix adjustment of health outcomes, resource use and process indicators in childbirth care: a register-based study.

Mesterton J, Lindgren P, Ekenberg Abreu A, et al.

BMC Pregnancy Childbirth. 2016;16:125

Neonatal Outcomes of Very Low Birth Weight and Very Preterm Neonates: An International Comparison.

Shah PS, Lui K, Sjörs G, et al. International Network for Evaluating Outcomes (iNeo) of Neonates.

J Pediatr. 2016;177:144-152.

Country-Specific vs. Common Birthweight-for-Gestational Age References to Identify Small for Gestational Age Infants Born at 24-28 weeks: An International Study.

Martin LJ, Sjörs G, Reichman B, et al. International Network for Evaluating Outcomes (iNeo) of Neonates Investigators.

Paediatr Perinat Epidemiol. 2016;30:450-61.

Ophthalmologic Outcome of Extremely Preterm Infants at 6.5 Years of Age: Extremely Preterm Infants in Sweden Study (EXPRESS).

Hellgren KM, Tornqvist K, Jakobsson PG, et al.

JAMA Ophthalmol. 2016;[Epub ahead of print].

Five years of treatment for retinopathy of prematurity in Sweden: results from SWEDROP, a national quality register.

Holmström G, Hellström A, Jakobsson P, et al.

Br J Ophthalmol. 2016;100:1656-1661.

Study protocol of SWEPIS a Swedish multicentre register based randomised controlled trial to compare induction of labour at 41 completed gestational weeks versus expectant management and induction at 42 completed gestational weeks.

Elden H, Hagberg H, Wessberg A, Sengpiel V, Herbst A, Bullarbo M, Bergh C, Bolin K, Malbasic S, Saltvedt S, Stephansson O, Wikström AK, Ladfors L, Wennerholm UB.

BMC Pregnancy Childbirth. 2016 Mar 7;16:49.

Intakes of Micronutrients are Associated with Early Growth in Extremely Preterm Infants - A Population-Based Study.

Sjöström ES, Öhlund I, Ahlsson F, Domellöf M.

J Pediatr Gastroenterol Nutr. 2016;62:885-92.

Impact of obstetric factors on outcome of extremely preterm births in Sweden: prospective population-based observational study (EXPRESS).

Källén K, Serenius F, Westgren M, et al.

Acta Obstet Gynecol Scand. 2015;94:1203-14.

Sepsis as a risk factor for neonatal morbidity in extremely preterm infants.

Ohlin A, Björkman L, Serenius F, et al.

Acta Paediatr. 2015;104:1070-6.

Association between cereberal palsy and microscopically verified placental infarction in extremely preterm infants.

Vinnars MT, Vollmer B, Nasiell J, et al.

Acta Obstet Gynecol Scand 2015;94:976-82.

Intensity of perinatal care for extremely preterm infants: outcomes at 2.5 years.

Serenius F, Blennow M, Maršál K, et al.

Pediatrics. 2015;135:e1163-72.

Placental pathology in relation to stillbirth and neonatal outcome in an extremely preterm population: a prospective cohort study.

Vinnars MT, Papadogiannakis N, Nasiell J, et al.

Acta Obstet Gynecol Scand. 2015;94:584-90.

Low energy intake during the first 4 weeks of life increases the risk for severe retinopathy of prematurity in extremely preterm infants.

Stoltz Sjöström E, Lundgren P, Öhlund I, et al.

Arch Dis Child Fetal Neonatal Ed. 2015;101:F108-13.

Timing of pharmacological treatment for patent ductus arteriosus and risk of secondary surgery, death or bronchopulmonary dysplasia: a population-based cohort study of extremely preterm infants

Gudmundsdottir A, Johansson S, Hakansson S, Norman M, Kallen K, Bonamy Ak.

Neonatology 2015 107;2 87-92. doi:10.1159/000367887

Intake and macronutrient content of human milk given to extremely preterm infants.

Stoltz Sjöström E, Öhlund I, Tornevi A, Domellöf M.

J Hum Lact 2014;30:442-9.

Evaluation of new guidelines for ROP screening in Sweden using SWEDROP – a national quality register.

Holmström G, Hellström A, Jakobsson P, et al.

Acta Ophthalmol. 2015;93:265-8.

The time for a confirmative necrotizing enterocolitis probiotics prevention trial in the extremely low birth weight infant in North America is now!

Abrahamsson TR, Rautava S, Moore AM, Neu J, Sherman PM.

J Pediatr. 2014 Aug;165(2):389-94. doi: 10.1016

The international network for evaluating outcomes of very low birth weight, very preterm neonates (iNeo): a protocol for collaborative comparisons of international health services for quality improvement in neonatal care.

Shah PS, Lee SK, Lui K et al.

BMC Pediatr 2014;14:110-121.

Ophthalmologic outcome at 30 months' corrected age of a prospective Swedish cohort of children born before 27 weeks of gestation: the extremely preterm infants in Sweden study.

Holmström GE, Källen K, Hellström A, et al.

JAMA Ophthalmol 2014;132:182-9.

Association between placental pathology and neonatal outcome in preeclampsia: a large cohort study

Vinnars Mt, Nasiell J, Holmstrom G, Norman M, Westgren M, Papadogiannakis N

Hypertension in pregnancy 2014 33;2 145-58. doi:10.3109/10641955.2013.842584

Perioperative nutrition in extremely preterm infants undergoing surgical treatment for patent ductus arteriosus is suboptimal.

Westin V, Stoltz Sjöström E, Ahlsson F et al.

Acta Peadiatr 2014;103:282-288.

The role of coagulase-negative staphylococci in early onset sepsis in a large European cohort of very low birth weight infants.

Mularoni A, Madrid M, Azpeitia A, et al.

Pediatr Infect Dis J. 2014;33:e121-5.

EXPRESS study shows significant regional differences in 1-year outcome of extremely preterm infants in Sweden.

Serenius F, Sjörs G, Blennow M, et al.

Acta Paediatr 2014;103:27-37.

Prenatal inflammatory risk factors for development of bronchopulmonary dysplasia.

Eriksson L, Haglund B, Odlind V, et al.

Pediatr Pulmonol. 2014;49:665-72.

Nutrient intakes independently affect growth in extremely preterm infants: results from a population-based study

Stoltz Sjöström E, Öhlund I, Ahlsson F, et al.

Acta Paediatr. 2013;102:1067-74.

Regional differences in screening for retinopathy of prematurity in infants born before 27 weeks of gestation in Sweden - the EXPRESS study.

Austeng D, Källen K, Hellström A, et al.

Acta Ophthalmol. 2014;92;311-5.

Neurodevelopmental outcome in extremely preterm infants at 2.5 years after active perinatal care in Sweden.

Serenius F, Källén K, Blennow M, et al.

JAMA. 2013;309:1810-20.

Swedish National Register for Retinopathy of Prematurity (SWEDROP) and the Evaluation of Screening in Sweden.

Holmstrom G, Hellstrom A, Jakobsson P, et al.

Arch Ophtalmol. 2012;130:1418-24.

Early Skin-to-Skin Care in Extremely Preterm Infants: Thermal Balance and Care Environment.

J Karlsson V, Heinemann AB, Sjörs G, et al.


Screening for retinopathy of prematurity in infants born before 27 weeks of gestation in Sweden.

Austeng D, Källén K, Hellström A, et al.

Arch Ophthalmol. 2011; 129:167-72.

Effects on neonatal morbidity and mortality after regional change in management of post term pregnancy.

Grunewald C, Saltvedt S, Håkansson S, Källén K.

Acta Obstet Gynecol Scand 2011;90:26-32.

Natural history of retinopathy of prematurity in infants born before 27 weeks of gestation in Sweden.

Austeng D, Källén K, Hellström A et al.

Arch Ophtalmol 2010; 128:1289-94.

Neonatal morbidity in moderately preterm infants: a Swedish national population-based study.

Altman M, Vanpée M, Cnattingius S, Norman M.

J Pediatr. 2011;158:239-44.

Incidence of and risk factors for neonatal morbidity after active perinatal care: extremely preterm infants study in Sweden.


Acta Paediatr. 2010;99:978-92.

Treatment for retinopath of prematurity in infants born before 27 weeks of gestatio in Sweden.

Austeng D, Källén K, Ewald U, et al.

Br J Ophtalmol, 2010;94:1136-9.

Incidence of Retinopathy of Prematurity in infants born before 27 weeks’s gestation in Sweden.

Austeng D, Källén K, Ewald U, et al.

Arch Ophthalmol. 2009;127:1315-9.

One-year survival of extremely preterm infants after active perinatal care in Sweden.

Fellman V, Hellström-Westas L, Norman M, et al.

JAMA. 2009;301:2225-33.

Passive induction of hypothermia during transport of asphyxiated infants: a risk of excessive cooling.

Hallberg B, Olson L, Bartocci M, et al.

Acta Paediatrica 2009;98:942-5.

Moderately preterm infants and determinants of length of hospital stay.

Altman M, Vanpée M, Cnattingius S, Norman M.

Arch Dis Child Fetal Neonatal Ed. 2009;94:F414-418.

Neonatal antibiotic treatment is a risk factor for early wheezing.

Alm B, Erdes L, Möllborg P, et al.

Pediatrics. 2008 Apr;121(4):697-702.

Shorter hospital stay for moderately preterm infants.

Altman M, Vanpée M, Bendito A, Norman M.

Acta Paediatr 2006;95:1228-33.