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Updated: Feb 26, 2026
Interventional Diagnostic Procedure: A Practical Guide for the Assessment of Coronary Vascular Function
Published on: March 15, 2022
[Left-heart catheterization followed by other invasive procedures: Regional comparisons reveal peculiar differences]
Silke Piedmont1, Enno Swart1, Rosie Kenmogne1
1Institut für Sozialmedizin und Gesundheitsökonomie, Med. Fakultät, Universität Magdeburg, Germany.
Insights
Diagnostic left heart catheterization (LHC) use varies regionally in Saxony-Anhalt, with over half of patients not receiving follow-up interventions. Patient factors like age and sex influence LHC outcomes, suggesting a need for more conservative indications.
Area of Science:
- Cardiology
- Health Services Research
- Public Health
Background:
- Diagnostic left heart catheterization (LHC) is crucial for considering bypass surgery or percutaneous coronary intervention (PCI).
- Regional variations in healthcare provision and LHC outcomes exist within Saxony-Anhalt, Germany.
- Understanding patient-related factors influencing follow-up interventions is essential for optimizing cardiac care.
Purpose of the Study:
- To investigate regional disparities in LHC utilization and outcomes across counties and hospitals in Saxony-Anhalt.
- To identify patient demographics and clinical factors associated with LHC procedures lacking subsequent invasive interventions.
- To examine the correlation between LHC rates, intervention rates, and myocardial infarction hospitalizations.
Main Methods:
- Analysis of 10,906 inpatient LHC cases from 9,791 individuals insured by AOK Saxony-Anhalt in 2011.
- Follow-up data until 12/31/2012 to determine subsequent coronary bypass or PCI.
- Regression analysis to identify determinants of LHC without therapeutic consequences, adjusted for age and sex.
Main Results:
- 54.2% of patients undergoing LHC did not receive a subsequent invasive intervention (bypass or PCI).
- A correlation was observed between regional LHC rates and the number of procedures without follow-up interventions.
- Hospitalization rates for acute myocardial infarction were not correlated with regional LHC rates. Women and younger patients were more likely to undergo LHC without therapeutic impact.
Conclusions:
- Significant regional variations and patient-related factors influence the utility of LHC in Saxony-Anhalt.
- There is potential for more conservative indications for LHC in certain regions and diagnoses.
- Further research is needed to refine healthcare strategies and improve the efficiency of cardiac interventions.
Background And Aims:
Diagnostic left heart catheterization (LHC) is recommended if the therapeutic consequences of a bypass operation or percutaneous coronary intervention (PCI) are being considered. The present study examines regional differences in healthcare provision and therapeutic consequences of LHC, differentiated by counties and hospitals of the German federal state of Saxony-Anhalt. In addition, it looks at which patient-related factors influence the proportion of follow-up interventions. The relation between the rates of LHC, interventions and hospital discharge due to myocardial infarction is examined.
Methods:
The data of 9,791 individuals having statutory health insurance coverage by the AOK Saxony-Anhalt with 10,906 anonymized inpatient cases of LHCs in 2011 were followed until 12/31/2012, and it was examined whether they subsequently received a coronary bypass or PCI. The data was used to compare both the counties of Saxony-Anhalt (according to residence, adjusted for age and sex) and their hospitals. Regression analysis was run to identify determinants of receiving a LHC without consequences.
Results:
Overall, 54.2 % of the patients with LHC had no invasive follow-up intervention. Regression analysis showed an approximately linear relationship for the counties: the number of LHCs provided correlates with the number of LHCs requiring no PCI or bypass within a period of at least 12 months. Regional LHC rates are not correlated with hospitalizations due to acute myocardial infarction. No bypass or PCI in the follow-up period was reported for 37 to 85 % of the cases, depending on the hospital providing the LHC. Women and younger patients have a higher risk to undergo LHC without therapeutic impact.
Discussion:
The analysis indicates that there are specific regions in Saxony-Anhalt and diagnoses where the indications for LHC should be more conservative. However, more detailed analyses are needed to verify the identified potentials for improving healthcare provision.
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