Match tier Listed
Presence Formerly Arkansas
Last published 2026
Sources OpenAlex · ORCID
Refreshed 2026-08-16

Timothy Nissen

Fellow Physician

Formerly Arkansas Affiliated with UAMS through 2024; recent publications list Arkansas Children's Hospital, University of Arkansas Medical Center.

Unknown Researcher

College of Medicine Administration

3 h-index 7 pubs 103 cited

  • Humans
  • Female
  • Male
  • Publication Bias
  • Child
  • Hematology
  • Review Literature as Topic
  • Evidence-Based Medicine
  • Overweight
  • Pediatric Obesity
  • Echocardiography
  • Heart Transplantation
  • Adolescent
  • Child, Preschool
  • Cardiac Catheterization

Biography and Research Information

OverviewAI-generated summary

Timothy Nissen's research focuses on pediatric cardiology, particularly utilizing echocardiography to assess heart function and growth in children. He has investigated novel echocardiographic parameters, such as leaflet length, as indicators of partial heart transplant growth. Nissen has also compared echocardiographically-calculated Fontan fenestration gradients with catheter-based measurements, contributing to the understanding of hemodynamics in complex congenital heart disease. His work includes a review of the criteria for intervening in cases of anomalous aortic origin of the right coronary artery. Nissen collaborates with researchers at the University of Arkansas for Medical Sciences, including Jim Zhongning Chen, Joshua Daily, Dala Zakaria, and Stephen T. Dalby, with whom he has co-authored multiple publications. His scholarship metrics include an h-index of 3 and a total of 7 publications with 103 citations.

Metrics

  • h-index: 3
  • Publications: 7
  • Citations: 103

Selected Publications

  • Comparison of Echocardiographically-Calculated Fontan Fenestration Gradient and Catheter-Based Measurement (2024)
    Pediatric Cardiology 1 citation DOI OpenAlex

View all publications on OpenAlex →

Collaboration Network

6 Collaborators 2 Institutions 1 Country

Top Collaborators

View profile →
View profile →
View profile →
View profile →
View profile →
View profile →

Similar Researchers

Based on overlapping research topics