Related Experiment Video
Updated: Aug 15, 2026

Implantation of the Syncardia Total Artificial Heart
Published on: July 18, 2014
Lactatdehydrogenase (LDH) prior and post implantation of ATS heart valves
Insights
Assessing prosthetic valve dysfunction with lactate dehydrogenase (LDH) is challenging. Our data on ATS valves suggests caution when interpreting elevated LDH levels, adding to existing research on prosthetic valve hemolysis.
Area of Science:
- Biomarkers in cardiovascular medicine
- Prosthetic heart valve function
- Hemolysis and diagnostic markers
Background:
- Lactate dehydrogenase (LDH) is a potential marker for assessing prosthetic heart valve dysfunction.
- Previous research highlighted difficulties in establishing clear guidelines for LDH use in evaluating valve performance.
- This study responds to prior work by presenting data on ATS valves.
Discussion:
- Elevated LDH levels in patients with prosthetic valves require careful interpretation.
- LDH may not be a universally reliable indicator of dysfunction across all prosthetic valve types.
- Further research is needed to refine the diagnostic utility of LDH in this context.
Key Insights:
- Data on ATS valves indicates a need for caution when interpreting increased LDH values.
- The reliability of LDH as a sole marker for prosthetic valve dysfunction is questionable.
- Contextualizing LDH levels with other clinical and diagnostic information is crucial.
Outlook:
- Future studies should focus on developing more specific biomarkers for prosthetic valve dysfunction.
- Investigating the correlation between LDH levels and specific types of valve complications is warranted.
- Establishing standardized protocols for interpreting LDH in prosthetic valve patients is essential.
Abstract:
Establishing guidelines towards an assessment of prostheses dysfunction using LDH as a marker is difficult as shown by [M. Suedkamp, A.J. Lercher, F. Mueller-Riemenschneider, K. LaRosee, P. Tossios, U. Mehlhorn, Hemolysis parameters of St Jude Medical hemodynamic valves in aortic position, Int. J. Cardiol (95) (2004) 89-93]. In response to their work we would like to add our data concerning ATS valves (AP) and say a word of caution in interpreting an increase of LDH values.

