Patient Characteristics Can Influence the Incidence of Perioperative Microemboli during Carotid Artery Interventions

Table 2

Univariate analysis of incidence of microemboli in all patients who received either CEA or CAS.

Patient demographic	% of patients with microemboli	% of patients with no microemboli	value
Carotid intervention			<0.001
CEA	7.6%	70.2%
CAS	36.8%	29.8%
Diabetes	51.8%	80.2%	0.001
Hypertension	92.9%	51.2%	<0.001
Hyperlipidemia	92.9%	89.5%	0.37
Obesity	42.9%	93.6%	<0.001
CAD	73.2%	30.2%	<0.001
COPD	28.6%	49.4%	0.05
PVD	35.7%	13.4%	0.06
Atrial fibrillation	14.3%	39.0%	0.005
Smoking	67.9%	10.5%	<0.001
History of CEA	26.8%	23.8%	0.89
Preop stroke	25.0%	18.0%	0.53
Preop TIA	44.6%	22.7%	0.005
Contralateral carotid Occlusion	7.1%	5.8%	0.88
Plaque calcification	26.8%	8.7%	0.008

CEA: carotid endarterectomy; CAS: carotid artery stenting; TIA: transient ischemic attack.