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Incidence and management of limb ischemia with percutaneous wire-guided intraaortic balloon catheters
Insights
Percutaneous wire-guided intraaortic balloon counterpulsation can lead to limb ischemia, particularly in patients with diabetes, peripheral vascular disease, or female gender. Careful consideration of risk factors is crucial before device insertion.
Area of Science:
- Cardiovascular Medicine
- Vascular Surgery
- Interventional Cardiology
Background:
- Intraaortic balloon pump (IABP) counterpulsation is a critical mechanical circulatory support device.
- Percutaneous wire-guided placement has improved procedural success and reduced aortic injury compared to surgical methods.
- Limb ischemia remains a significant complication of IABP therapy.
Purpose of the Study:
- To evaluate the incidence and risk factors associated with limb ischemia following percutaneous wire-guided intraaortic balloon catheter placement.
- To assess the outcomes of limb ischemia requiring intervention.
- To determine if technological advancements have impacted the incidence of IABP-related limb ischemia.
Main Methods:
- Retrospective analysis of 106 percutaneous wire-guided IABP placements in 103 patients.
- Data collection on patient demographics, comorbidities, procedural details, and complications.
- Statistical analysis to identify risk factors for limb ischemia, including logistic regression.
Main Results:
- Successful placement in all cases; average counterpulsation duration of 3.4 days.
- Limb ischemia occurred in 45% of patients, necessitating premature removal in 29%.
- Significant risk factors for limb ischemia included diabetes (RR 2.0), peripheral vascular disease (RR 1.9), female gender (RR 1.8), and low post-insertion ankle-brachial index (RR 7.9).
- No association found with age, body surface area, balloon size, or anticoagulation adequacy.
- 15 patients required vascular surgery, with one operative death; 9 had persistent limb ischemia at discharge.
Conclusions:
- Percutaneous wire-guided IABP placement is effective but associated with a substantial risk of limb ischemia.
- Specific patient factors significantly increase the risk of developing limb ischemia.
- Despite technological improvements in placement, the incidence of limb ischemia and its sequelae has not demonstrably decreased, warranting careful risk assessment prior to insertion.
Abstract:
In 103 patients who underwent placement of 106 percutaneous wire-guided intraaortic balloon catheters between August 1983 and January 1986, all placements were successful and the average duration of counterpulsation was 3.4 +/- 1.6 days. During counterpulsation, 45 patients developed limb ischemia that required premature balloon removal in 29 patients. The development of limb ischemia was significantly related to the presence of diabetes (risk ratio 2.0), peripheral vascular disease (risk ratio 1.9), female gender (risk ratio 1.8) and the presence of a postinsertion ankle-brachial pressure index less than 0.8 (risk ratio 7.9). There was no association between the development of limb ischemia and age, body surface area, balloon size (10.5F/12F) or adequacy of anticoagulation. Fifteen patients underwent vascular surgery for treatment of balloon-related limb ischemia, which was associated with one operative death. Nine patients had persistent limb ischemia (seven asymptomatic, two symptomatic) at the time of hospital discharge. Improvements in wire-guided balloon technology have increased the probability of successful balloon placement over that of surgical placement and have reduced the incidence of major aortic injury, but there is no evidence that these improvements have reduced the incidence of limb ischemia or its sequelae. This should be borne in mind before proceeding with balloon insertion in patients with one or more risk factors for developing limb ischemia.