Background
In heart transplantation (HT), peripheral veno‐arterial extracorporeal membranous oxygenation (VA‐ECMO) is utilized preoperatively as a direct bridge to HT or postoperatively for primary graft dysfunction (PGD). Little is known about wound complications of an arterial VA‐ECMO cannulation site which can be fatal.
Methods
From 2009 to 2021, outcomes of 80 HT recipients who were supported with peripheral VA‐ECMO either preoperatively or postoperatively were compared based on the site of arterial cannulation: axillary (AX: N = 49) versus femoral artery (FA: N = 31).
Results
Patients in the AX group were older (AX: 59 years vs. 52 years, p = .006), and less likely to have extracorporeal cardiopulmonary resuscitation (0% vs. 12.9%, p = .040). Survival to discharge (AX, 81.6% vs. FA. 90.3%, p = .460), incidence of stroke (10.2% vs. 6.5%, p = .863), VA‐ECMO cannulation‐related bleeding (6.1% vs. 12.9%, p = .522), and arm or limb ischemia (0% vs. 3.2%, p = .816) were comparable. ECMO cannulation‐related wound complications were lower in the AX group (AX, 4.1% vs. FA, 45.2%, p < .001) including the wound infections (2.0% vs. 32.3%, p < .001). In FA group, all organisms were gram‐negative species. In univariate logistic regression analysis, AX cannulation was associated with less ECMO cannulation‐related wound complications (Odds ratio, .23, p < .001). There was no difference between cutdown and percutaneous FA insertion regarding cannulation‐related complications.
Conclusions
Given the lower rate of wound complications and comparable hospital outcomes with femoral cannulation, axillary VA‐ECMO may be an excellent option in HT candidates or recipients when possible