Related Experiment Videos
Distal embolization is common after directional atherectomy in coronary arteries and saphenous vein grafts
R Waksman1, J S Douglas, N A Scott
1Andreas Gruentzig Cardiovascular Center, Division of Cardiology, Emory University School of Medicine, Atlanta, GA 30322.
Insights
Coronary embolization, a complication of directional atherectomy, occurred in 28% of patients, particularly in saphenous vein grafts. While most patients had no adverse outcomes, those with embolization experienced longer hospital stays.
Area of Science:
- Cardiology
- Interventional Cardiology
- Vascular Medicine
Background:
- Coronary artery interventions carry risks, including distal embolization.
- Understanding the incidence and predictors of coronary embolization is crucial for patient safety.
Purpose of the Study:
- To investigate the incidence, predictors, and clinical significance of distal embolization during directional atherectomy.
- To compare outcomes between patients with and without distal embolization.
Main Methods:
- Retrospective analysis of 111 consecutive patients undergoing directional atherectomy for 120 lesions.
- Evaluation of clinical and morphological predictors of embolization.
- Comparison of clinical outcomes, including hospitalization duration.
Main Results:
- Distal embolization occurred in 31 (28%) patients.
- Higher incidence in saphenous vein grafts (48%) vs. native coronaries (22%; p=0.01).
- Predictors included older age, de novo lesions, larger artery size, larger postprocedure MLD, calcific, and type C lesions. Longer hospitalization observed in embolization group (3.9 vs. 2.4 days; p=0.01).
Conclusions:
- Distal embolization is a notable complication of directional atherectomy, especially in saphenous vein grafts.
- Several clinical and morphological factors predict its occurrence.
- While associated with longer hospitalization, significant adverse clinical outcomes were infrequent.
Abstract:
Coronary embolization is a complication of coronary intervention procedures. The incidence, predictors, and clinical significance of this phenomenon during directional atherectomy were examined in 111 consecutive patients who underwent directional atherectomy to 120 lesions. Distal embolization occurred in 31 (28%) of the patients. It was noted mainly in the saphenous vein graft group of patients (12 [48%] of 25) versus the native coronary group (19 [22% of 86]; p = 0.01). Clinical predictors were age and de novo lesions. Morphologic predictors were larger artery size, larger postprocedure minimal luminal diameter, calcific lesions, and type C lesions. The only difference in clinical outcome was a longer hospitalization in the distal embolization group with 3.9 +/- 3.7 days versus the rest of the patients 2.4 +/- 2.4 days (p = 0.01). In the majority of patients there was no significant adverse clinical outcome.