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Lifeline Registry of Endovascular Aneurysm Repair: Registry data report
Insights
The Lifeline Endovascular Registry tracks long-term safety of endovascular grafts for abdominal aortic aneurysms. Early data show factors like renal failure and aneurysm size impact survival, highlighting the need for ongoing surveillance.
Area of Science:
- Vascular Surgery
- Medical Device Surveillance
- Clinical Outcomes Research
Background:
- Abdominal aortic aneurysm (AAA) repair is a significant clinical challenge.
- Endovascular grafts offer an alternative to open surgical repair.
- Long-term safety and efficacy data for endovascular grafts are crucial.
Purpose of the Study:
- To establish a comprehensive registry for evaluating the long-term safety of endovascular grafts used in AAA repair.
- To collect and analyze patient follow-up data for endovascular graft recipients.
- To identify factors influencing survival and adverse events in AAA repair.
Main Methods:
- Prospective data collection on 1757 patients undergoing AAA repair (1646 endovascular, 111 surgical).
- Follow-up data included patient comorbidities, graft performance, and adverse events.
- Logistic regression analysis was used to identify predictors of 1-year survival.
Main Results:
- Factors decreasing 1-year survival in endovascular recipients included renal failure, COPD, CHF, larger aneurysm size, and older age.
- 17% of endovascular recipients experienced endoleak, and 4.6% had aneurysm enlargement within 1 year.
- 4.9% of endovascular graft recipients required conversion to open surgery due to factors like increased aneurysm diameter, rupture, or proximal endoleak.
Conclusions:
- Early analysis of the Lifeline Endovascular Registry data underscores the importance of surveillance for endovascular graft recipients.
- Registry data aid in monitoring long-term safety, evaluating graft performance, and identifying adverse events.
- Collected data on comorbidities and postoperative factors inform optimal patient selection and management strategies for AAA repair.
Purpose:
The goal of the Lifeline Endovascular Registry is to provide a minimal, yet comprehensive, data set of patient follow-up that can evaluate the long-term safety of endovascular grafts used in abdominal aortic aneurysm repair.
Methods:
Follow-up data have been collected on 1757 patients for this first report, including 1646 endovascular graft recipients and 111 surgical patients receiving treatment for abdominal aortic aneurysm.
Results:
Logistic regression of 1-year survival indicates that the factors most likely to decrease 1-year survival for the surgical group are renal failure and larger aneurysm size. For the endovascular graft recipients, the presence of renal failure, chronic obstructive pulmonary disease, congestive heart failure, larger aneurysm size, and increased age demonstrates a decrease in 1-year survival. Approximately 80% (1309) of the endovascular recipients have been followed for 1 year. Of these 1309 patients, 17% (222) have incurred an endoleak, and enlargement of the aneurysm has occurred in 4.6% (60). There was a total of 80 (4.9%) endovascular graft recipients converted to surgery. The most prevalent factors causing conversion to surgery were an increase in aneurysm diameter, aneurysm rupture, and the presence of a proximal endoleak.
Conclusions:
Although the data collected by the Registry thus far are limited, we anticipate rapid expansion of the Registry to include data from other manufacturers and investigators. Nevertheless, early data analysis does demonstrate the importance of surveillance of endovascular graft recipients. Through the collection and analysis of Registry data, adverse events continue to be captured, enabling the monitoring of long-term safety of endovascular grafts and the evaluation of graft performance. Data on comorbidities and postoperative factors, collected and evaluated for their effect on survival of the graft recipients, also provide information on optimal patient selection and management. We expect that the next report will support and expand on these findings, providing continuing evidence of the value of a national endovascular registry.
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