From the Guidelines
The intra-aortic balloon pump (IABP) should be placed in the descending thoracic aorta with the tip positioned just distal to the left subclavian artery and proximal to the renal arteries. This placement is crucial for optimal functioning and to avoid complications, as supported by the guidelines on the diagnosis and treatment of acute heart failure 1. The IABP works by inflating during diastole to increase coronary perfusion and deflating just before systole to reduce afterload, thereby improving cardiac output, as described in the clinical review on the management of perioperative heart failure in cardiac surgery 1. Proper positioning is essential to prevent occlusion of the left subclavian artery or carotid arteries, which could lead to upper extremity or cerebral ischemia, and to avoid blocking the renal arteries or mesenteric vessels, which could result in renal dysfunction or bowel ischemia. The most recent guidelines for the diagnosis and treatment of acute and chronic heart failure also emphasize the importance of correct IABP placement 1. Key considerations for IABP placement include:
- Positioning the tip approximately 2 cm below the origin of the left subclavian artery
- Verifying correct placement via fluoroscopy during insertion and chest X-ray afterward
- Selecting the appropriate balloon size (usually 30-50 cc) based on the patient's height
- Inserting the IABP via the femoral artery using the Seldinger technique.
From the Research
IABP Placement Location
The location for Intra-Aortic Balloon Pump (IABP) placement is typically in the descending aorta.
- The technique of inserting an IABP involves placing the balloon in the descending aorta to augment coronary perfusion and reduce myocardial work 2.
- Percutaneous placement of an IABP can be done through the left axillary/subclavian position, which provides safe, ambulatory long-term support as a bridge to heart transplantation 3.
- The transfemoral approach to IABP placement is also common, but it has major disadvantages, including the risk for infection and limitation of patient mobility in those requiring extended support 3.
Considerations for IABP Placement
When considering IABP placement, several factors should be taken into account, including:
- The patient's condition, such as acute decompensated heart failure with cardiogenic shock 4, 5
- The potential benefits and risks of IABP placement, including the risk of complications such as bleeding events, vascular access complications, and systemic embolism 5, 2
- The need for prolonged support, which may require a more stable and comfortable placement location, such as the left axillary/subclavian position 3