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Published on: February 8, 2022
Organized follow-up is essential for the evaluation of cardiac surgery
1Department of Cardio-Thoracic Surgery, Heart Center, Radboud University, Nijmegen Medical Center, Nijmegen, The Netherlands - l.noyez@ctc.umcn.nl.
Insights
Evaluating cardiac surgery outcomes requires comprehensive follow-up (FU). Hospital mortality data alone is insufficient; organized FU at one year post-operation improves accuracy by tracking survival and mortality, especially for high-risk patients.
Area of Science:
- Cardiovascular Surgery
- Outcomes Research
- Patient Follow-up
Background:
- Cardiac surgery outcomes are often based on limited hospital data.
- Current follow-up methods may not adequately capture long-term patient survival and mortality.
- Assessing the true effectiveness of cardiac surgery requires a more robust evaluation framework.
Purpose of the Study:
- To evaluate the completeness, dropout rates, and survival data of a cardiac surgery follow-up program.
- To compare hospital mortality with 30-day, 6-month, and 1-year mortality rates.
- To determine the relationship between operative risk and follow-up data accuracy.
Main Methods:
- Included 3,328 adult cardiac surgery patients from January 2007 to December 2010.
- Utilized a two-tiered follow-up system: Organized FU (OFU) via annual surveys and Non-Organized FU (NOFU) from external sources.
- Endpoint was date of mortality or last available information.
Main Results:
- Follow-up completeness decreased from 99.1% at 30 days to 85.6% at 1 year.
- No significant difference in age or Euroscore risk between patients included and lost to follow-up during the first year.
- One-year survival varied significantly with operative risk, and discrepancies in mortality reporting were linked to risk class and unobserved patients.
Conclusions:
- Hospital, 30-day, 6-month, and 1-year mortality in cardiac surgery are influenced by operative risk and the number of unobserved patients.
- Organized FU at one year post-operation is most effective for registering both mortality and survival.
- Comprehensive follow-up is crucial for accurate assessment of cardiac surgery outcomes.
Aim:
Follow-up in adult cardiac surgery seems problematic. Mostly only hospital data are presented. Evaluation of performed cardiac surgery, is based on these data. However is this appropriate? This study evaluates the results of our follow-up (FU) in terms of completeness, drop out and survival in relation to the operative risk and the difference between hospital mortality, 30-day, 6-month and 1-year mortality.
Methods:
Three thousand three hundred twenty-eight patients operated between January 2007 and December 2010 were included. Hospital mortality was 1.68% (56/3328). The date of mortality or the last date of information is endpoint. Our FU is twofold, the Organized FU (OFU) a yearly performed FU by mean of a written survey directly to all patients. A non-organized FU (NOFU) covering all information supplied spontaneously by cardiologists, general practitionars, family or others.
Results:
Completeness decreases from 99.1% at 30-days over 85.6% at 1-year postoperative. During the first year there is no statistical significant difference between patients in or lost for FU, concerning age and Euroscore risk. Survival analysis shows a difference in one-year survival related to the risk.The statistical difference between hospital mortality and the registered 30-day, 6-month and 1-year mortality is related to the Euroscore risk class but also to the number of unobserved patients survival or mortality.
Conclusion:
This study shows that hospital mortality, 30-day-, 6 months- and 1-year mortality is related to the operative risk and the number of unobserved patients Most efficient seems an OFU at one year postoperative, where not only mortality but also survival is registered.
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