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ISTH Webinar: Pediatric Thrombosis
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ISTH Webinar: Pediatric Thrombosis

When: Wednesday, November 20, 2019
9:00 AM

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Pediatric Thrombosis

November 20, 2019 14:00 - 15:00 UTC (9:00 EST)


Char Witmer "Pediatric Central Venous Catheter Related Thrombosis"

  • Identify complications related to central venous catheter thrombosis.
  • Develop a management strategy for pediatric patients with a central venous catheter thrombosis.
  • Describe the current evidence regarding central venous catheter thrombosis prophylaxis.

Heleen van Ommen "Non-central nervous system arterial thrombosis in neonates and children"

  • Participants will learn to describe the epidemiology, clinical presentation and risk factors of catheter-related and non-catheter-related arterial thrombosis
  • Participants will learn the current available strategies for prevention and management of pediatric arterial thrombosis.

Moderator: Ketan Kulkarni


Register here.


Char Witmer

Dr. Witmer is a pediatric hematologist at The Children’s Hospital of Philadelphia (CHOP) in Philadelphia, Pennsylvania, USA. She is board certified in Pediatric Hematology Oncology and is currently the assistant director of the CHOP Hemostasis and Thrombosis Center. Dr. Witmer is a clinical researcher with a master’s degree in epidemiology and has a research focus that mirrors her clinical expertise in pediatric hemostatic and thrombotic disorders. She also has an interest in preventing hospital acquired conditions and has received formal training in quality improvement methodology. She currently is the CHOP physician lead for the prevention of hospital-acquired venous thromboembolism. In addition, she serves as a co-leader for the Solutions for Patient Safety National Children’s Network of over 100 US pediatric hospitals to prevent pediatric venous thromboembolism. In addition, Dr. Witmer has an interest in the effective use of clinical informatics and clinical decision support within the electronic health record to support clinical decision making around VTE prevention. 

Heleen van Ommen

Dr C. Heleen van Ommen is pediatric hematologist and head of the Pediatric Hematology/ Shared Care Oncology department of the ErasmusMC Sophia Children’s Hospital in Rotterdam, the Netherlands. Heleen graduated from medical school at the University of Leiden in 1991. She completed her clinical training in pediatrics and pediatric hematology at the Emma Children’s Hospital AMC in Amsterdam. In 2002 she earned her PhD from the University of Amsterdam. After graduating she completed a research fellowship in Hemostasis and Thrombosis in the Henderson Research Centre in Hamilton, Canada in 2003. During 2004-2015 she worked as pediatric hematologist at the Pediatric Hematology department of the Emma Children’s Hospital AMC. She moved to the ErasmusMC Sophia Children’s Hospital in Rotterdam in 2015. She is founder and chair of the national Pediatric Thrombosis and Stroke working group and International Pediatric Thrombosis Network (IPTN), former co-chair of the Scientific and Standardization Committee (Pediatric/Neonatal Hemostasis and Thrombosis) of International Society of Thrombosis and Hemostasis (ISTH), and member of the American Society of Hematology (ASH) guideline panel for treatment of pediatric thrombosis. Current research projects include thrombosis in adolescents, and hemostasis during ECMO.  

Ketan Kulkarni

Dr Kulkarni is currently associate professor of Pediatrics in the division of Pediatric Hematology and Oncology and Department of Pediatrics at the IWK health center. He is also cross appointed in the department of Medicine. His main clinical interests are (i) thrombosis in high risk population such as oncology, cardiology, intensive care and (ii) leukemia in addition to ongoing management of children with hematological and oncological disorders. Dr Kulkarni previously completed his training in the field of Pediatric Hematology Oncology and Thrombosis at the University of Alberta and developed his interests in the aforementioned areas during his training.

Dr. Kulkarni’s research interest align very closely with his clinical interests and include thrombosis in high-risk pediatric populations such as pediatric oncology, cardiology and intensive care.  He is also interested in supportive care and clinical outcomes research in pediatric oncology as well as adult hematology. As well, he is actively engaged in collaboration with basic and translational researchers to find innovative ways of improving the care of pediatric hematology oncology patients. His work is integrative with the endeavor to improve overall and holistic outcomes of pediatric hematology oncology patients.


Dr Kulkarni has over 75 peer reviewed publications to date with a similar number of abstracts. He continues to actively conduct over 20 ongoing studies at the IWK health center/Dalhousie and is very actively engaged in national and international collaboration. Dr Kulkarni is also actively engaged in education and teaching students at all levels from undergraduate to subspecialty residency. He believes in participatory, analytical and case based learning approach with active input form students. He currently has several clinical and research students working with him on a range of projects. 

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