Jenny Bolk

About me
Publications
CV
Public outreach and news

About me

Senior consultant in neonatology, Sachs´ Children and Youth Hospital.
Associate professor, Division of Clinical Epidemiology, Department of Medicin Solna, and KI
SÖS, KI.

Medical Degree, Karolinska Institutet, 1998.
Specialist in Pediatrics, Karolinska University Hospital, 2008.
Specialist in Neonatology, Karolinska University Hospital, 2012.
PhD 2018, Karolinska Institutet.
Associate professor 2024, Karolinska Institutet.

Research

I defended my thesis 2018, on neurodevelopment in children born extremely preterm.
My main research interests are prematurity, perinatal stroke, birth asphyxia and neurodevelopmental outcomes.

Teaching

Lecturer on the Medical program
on KI.
Supervises PhD students and residents.

Articles

Journal article: NEUROLOGY. 2024;102(11):e209552
Novel Techniques Could Contribute to Solving the Puzzle of Perinatal Stroke Etiology
Bolk J
Article: PEDIATRIC RESEARCH. 2024;95(4):1070-1079
Language performance and brain volumes, asymmetry, and cortical thickness in children born extremely preterm
Kvanta H; Bolk J; Brostrom L; Nosko D; de Gamarra-Oca LF; Padilla N; Aden U
Article: THE BMJ. 2024;384:e075630
Neurological development in children born moderately or late preterm: national cohort study
Mitha A; Chen R; Razaz N; Johansson S; Stephansson O; Altman M; Bolk J
Article: ACTA PAEDIATRICA, INTERNATIONAL JOURNAL OF PAEDIATRICS. 2023;112(9):1907-1915
Term-born infants with a perinatal stroke frequently had seizures and were prescribed anti-seizure medication at discharge
Bergqvist AB; Simatou E; Skiold B; Mitha A; Bolk J
Article: SCIENTIFIC REPORTS. 2023;13(1):12569
First stage of labour duration and associated risk of adverse neonatal outcomes
Lundborg L; Aberg K; Sandstrom A; Liu X; Tilden EL; Bolk J; Ladfors LV; Stephansson O; Ahlberg M
Article: EUROPEAN JOURNAL OF PAEDIATRIC NEUROLOGY. 2023;45:14-18
Changes in prevalence of non-optimal neurological condition between 6.5 and 12 years in children born extremely preterm
Nosko D; Brostrom L; Bolk J; Aden U; Ortqvist M
Article: PAEDIATRIC AND PERINATAL EPIDEMIOLOGY. 2023;37(4):276-286
The Stockholm-Gotland perinatal cohort-A population-based cohort including longitudinal data throughout pregnancy and the postpartum period
Johansson K; Granfors M; Petersson G; Bolk J; Altman M; Cnattingius S; Liu X; Sandstrom A; Stephansson O
Article: ACTA PAEDIATRICA, INTERNATIONAL JOURNAL OF PAEDIATRICS. 2023;112(4):675-685
Perinatal risk factors for developmental coordination disorder in children born extremely preterm
Bolk J; Kallen K; Farooqi A; Hafstrom M; Fellman V; Aden U; Serenius F
Article: ACTA PAEDIATRICA, INTERNATIONAL JOURNAL OF PAEDIATRICS. 2023;112(4):667-674
Low Apgar score and need for resuscitation increased the probability of receiving therapeutic hypothermia more strongly than acidosis at birth
Lagerstrom I; Daugeliene D; Bolk J; Cnattingius S; Skiold B; Altman M; Johansson S
Article: FRONTIERS IN NEUROLOGY. 2023;14:1148781
Extreme prematurity and perinatal risk factors related to extremely preterm birth are associated with complex patterns of regional brain volume alterations at 10 years of age: a voxel-based morphometry study
Kvanta H; Bolk J; Brostrom L; Fernandez de Gamarra-Oca L; Padilla N; Aden U
Article: NEUROLOGY. 2022;98(19):e1953-e1963
Risk of Autism After Pediatric Ischemic Stroke A Nationwide Cohort Study
Sundelin H; Soderling J; Bang P; Bolk J
Article: PAEDIATRIC AND PERINATAL EPIDEMIOLOGY. 2022;36(3):412-421
Adverse motor outcome after paediatric ischaemic stroke: A nationwide cohort study
Svensson K; Walas A; Bolk J; Bang P; Sundelin HEK
Article: JAMA NETWORK OPEN. 2022;5(4):e228884
Association of Perinatal and Childhood Ischemic Stroke With Attention-Deficit/Hyperactivity Disorder
Bolk J; Simatou E; Soderling J; Thorell LB; Persson M; Sundelin H
Journal article: PERFECTIONNEMENT EN PÉDIATRIE. 2022;5(1):67
Devenir neurologique à long terme des enfants nés prématurément entre 32 et 36 semaines d’aménorrhée : étude nationale suédoise en population
Mitha A; Chen R; Altman M; Johansson S; Razaz N; Stephansson O; Bolk J
Article: JOURNAL OF PEDIATRICS. 2021;233:43-50.e5
Neonatal Morbidities in Infants Born Late Preterm at 35-36 Weeks of Gestation: A Swedish Nationwide Population-based Study
Mitha A; Chen R; Altman M; Johansson S; Stephansson O; Bolk J
Article: PLOS ONE. 2021;16(11):e0259717
Exploring the distribution of grey and white matter brain volumes in extremely preterm children, using magnetic resonance imaging at term age and at 10 years of age
Kvanta H; Bolk J; Strindberg M; Jimenez-Espinoza C; Brostrom L; Padilla N; Aden U
Article: BMC PREGNANCY AND CHILDBIRTH. 2020;20(1):700
Could a multidisciplinary regional audit identify avoidable factors and delays that contribute to stillbirths? A retrospective cohort study
Sterpu I; Bolk J; Oberg SP; Varli IH; Itzel EW
Article: JOURNAL OF AAPOS. 2020;24(1):28.e1-28.e8
Cerebral visual impairment captured with a structured history inventory in extremely preterm born children aged 6.5 years
Hellgren K; Jacobson L; Frumento P; Bolk J; Aden U; Libertus ME; Benassi M
Article: JAMA PEDIATRICS. 2018;172(8):765-774
Developmental Coordination Disorder and Its Association With Developmental Comorbidities at 6.5 Years in Apparently Healthy Children Born Extremely Preterm
Bolk J; Farooqi A; Hafstrom M; Aden U; Serenius F
Article: DEVELOPMENTAL MEDICINE AND CHILD NEUROLOGY. 2018;60(8):826-832
Minor neurological dysfunction and associations with motor function, general cognitive abilities, and behaviour in children born extremely preterm
Brostrom L; Vollmer B; Bolk J; Eklof E; Aden U
Article: ACTA PAEDIATRICA, INTERNATIONAL JOURNAL OF PAEDIATRICS. 2018;107(5):831-837
National population-based cohort study found that visual-motor integration was commonly affected in extremely preterm born children at six-and-a-half years
Bolk J; Kaul YF; Hellstrom-Westas L; Stjernqvist K; Padilla N; Serenius F; Hellgren K; Aden U
Article: BMJ OPEN. 2018;8(2):e020478
Visual-motor integration and fine motor skills at 61/2 years of age and associations with neonatal brain volumes in children born extremely preterm in Sweden: a population-based cohort study
Bolk J; Padilla N; Forsman L; Brostrom L; Hellgren K; Aden U
Article: PLOS ONE. 2016;11(2):e0149578
Clinical Implications of Diffuse Excessive High Signal Intensity (DEHSI) on Neonatal MRI in School Age Children Born Extremely Preterm
Brostrom L; Bolk J; Padilla N; Skiold B; Eklof E; Martensson G; Vollmer B; Aden U
Article: PEDIATRIC BLOOD AND CANCER. 2008;51(1):76-81
Incidence of Langerhans cell histiocytosis in children:: A population-based study
Stalemark H; Laurencikas E; Karis J; Gavhed D; Fadeel B; Henter J-I
Article: PEDIATRIC RESEARCH. 2006;59(2):281-286
Elevated serum levels of the decoy receptor osteoprotegerin in children with langerhans cell histiocytosis
Rosso DA; Karis J; Braier JL; Henter JI; Fadeel B
Article: AIDS RESEARCH AND HUMAN RETROVIRUSES. 1996;12(9):821-828
Biological phenotype of HIV type 2 isolates correlates with V3 genotype
Albert J; Stalhandske P; Marquina S; Karis J; Fouchier RAM; Norrby E; Chiodi F
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All other publications

Review: ACTA PAEDIATRICA, INTERNATIONAL JOURNAL OF PAEDIATRICS. 2023;112(12):2468-2477
Stabilisation and resuscitation with intact cord circulation is feasible using a wide variety of approaches; a scoping review
Alikhani VS; Thies-Lagergren L; Svedenkrans J; Elfvin A; Bolk J; Andersson O
Conference publication: ACTA OBSTETRICIA ET GYNECOLOGICA SCANDINAVICA. 2023;102:34
Labor duration and risk of adverse neonatal outcome
Lundborg L; Aberg K; Sandstrom A; Liu X; Tilden E; Bolk J; Ladfors LV; Stephansson O; Ahlberg M
Thesis / dissertation: 2018
Extremely preterm birth : brain imaging and outcome at early school-age
Bolk, Jenny
Conference publication: EUROPEAN JOURNAL OF PEDIATRICS. 2016;175(11):1616
ALTERED STRUCTURAL WHOLE-BRAIN NETWORK ORGANIZATION IN EXTREMELY PRETERM CHILDREN AT 10 YEARS OF AGE
Padilla N; Van Hartevelt T; Fernandes H; Stevner AB; Strindberg M; Schlinzig LS; Bolk J; Deco G; Kringelbach M; Aden U
Conference publication: EUROPEAN JOURNAL OF PEDIATRICS. 2016;175(11):1523
Motor development at age 2,5 years predict motor function at age 6,5 years in extremely preterm children
Brostrom L; Vollmer B; Bolk J; Blennow M; Aden U
Conference publication: EUROPEAN JOURNAL OF PEDIATRICS. 2016;175(11):1530
VISUAL-MOTOR INTEGRATION IN EXTREMELY PRETERM BORN CHILDREN IN SWEDEN
Bolk J; Kaul YF; Hellstrom-Westas L; Stjernqvist K; Padilla N; Serenius F; Hellgren K; Aden U
Meeting abstract: PEDIATRIC RESEARCH. 2011;70:194
INTERNATIONAL TRENDS IN NEUROIMAGING IN NEONATAL ENCEPHALOPATHY
Merchant N; Ojha S; Bolk J; Malloy EJ
Conference publication: ACTA PAEDIATRICA, INTERNATIONAL JOURNAL OF PAEDIATRICS. 2009;98:91-92
EVALUATION OF BEHAVIOURAL PROBLEMS IN 21/2 YEAR OLD CHILDREN BORN EXTREMELY PRETERM
Bolk J; Skiold B; Alexandrou G; Blennow M; Aden U; Vollmer B

Employments

Affiliated to Research, Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, 2024-2027
Affiliated to Research, Department of Medicine, Karolinska Institutet, 2024-2025
Adjunct Lecturer, Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, 2021-2024

Degrees and Education

Docent, Karolinska Institutet, 2024
Degree Of Doctor Of Philosophy, Department of Women's and Children's Health, Karolinska Institutet, 2018
University Medical Degree, Karolinska Institutet, 1998

About me

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