Short-term mechanical circulatory support in elderly patients.

Area of Science:

• Cardiology
• Mechanical Circulatory Support
• Geriatric Medicine

Background:

• Advanced age (over 70 years) is often considered a relative contraindication for mechanical circulatory support (MCS) due to perceived poor prognosis.
• Short-term MCS devices like VA-ECMO and Impella CP are used for hemodynamic instability, including cardiogenic shock.
• The impact of age on survival outcomes for patients undergoing short-term MCS requires further investigation.

Purpose of the Study:

• To evaluate the survival impact of age on patients receiving short-term mechanical circulatory support.
• To compare outcomes between elderly (≥70 years) and younger (<70 years) patients undergoing short-term MCS.
• To identify predictive factors for mortality in elderly patients receiving MCS.

Main Methods:

• Retrospective analysis of patients (≥70 years) who received veno-arterial extracorporeal membrane oxygenation (VA-ECMO) or Impella CP® for hemodynamic instability.
• Comparison of outcomes between the elderly group and a cohort of younger patients (<70 years).
• Analysis of factors associated with survival in the elderly patient group.

Main Results:

• Out of 164 short-term MCS implants, 45 were in patients ≥70 years old (27.4%).
• Survival rates at discharge (40% vs. 43.7%) and follow-up (35.6% vs. 37.8%) were similar between elderly and younger patients.
• Predictors of mortality in elderly patients included peripheral artery disease, elevated lactate and creatinine, longer cardiac arrest duration, and worse post-implantation ejection fraction.

Conclusions:

• Short-term MCS (VA-ECMO or Impella CP®) is a viable option for elderly patients with hemodynamic compromise, serving as a bridge to recovery or for high-risk PCI.
• Age should not be an absolute contraindication for MCS; careful patient selection is essential.
• Elderly patients undergoing short-term MCS did not experience a significant increase in complications or mortality compared to younger counterparts.