Table 5: Investigations.

Young patients ( 𝑛 = 1 0 0 )Old patients ( 𝑛 = 1 1 1 7 )P

ECG on admission
Total82 (82)1057 (94.6)
Atrial fibrillation2 (2.4)181 (17.1)<.001
Left bundle branch block0 (0)38 (3.6).11
Left ventricle hypertrophy6 (7.3)73 (6.9).82
Unspecific ST depression7 (8.5)232 (21.9).003
Acute anterior myocardial infarction0 (0)3 (.3)1.00
Old anterior myocardial infarction2 (2.4)52 (4.9).42
Acute inferior myocardial infarction0 (0)2 (.2)1.00
Old inferior myocardial infarction2 (2.4)59 (5.6).31

Echocardiography
Total63 (63)357 (32.0)
TTE28 (44.4)284 (79.6)
TEE35 (55.6)73 (20.4)
Left ventricle hypertrophy7 (11.1)119 (33.3)<.001
Patent foramen ovale10 (15.9)14 (3.9).001
Sequelae anterior myocardial infarction2 (3.2)19 (5.3).75
Sequelae inferior myocardial infarction0 (0)16 (4.5).15

Holter monitoring
Total57 (57)434 (38.9)
Paroxysmal atrial fibrillation1 (1.8)78 (18.0).001

Duplex of cervical arteries
Total86 (86)893 (79.9)
ICA stenosis¹11 (12.8)356 (39.9).000
Symptomatic ICA stenosis ≤49%¹*0 (0)83 (13.9).002
Symptomatic ICA stenosis 50–69%¹*0 (0)55 (9.2)
Symptomatic ICA stenosis 70%–99%¹*2 (3.9)34 (5.7)
Symptomatic occlusion¹*5 (9.8)29 (4.9)
No ICA stenosis¹*44 (86.3)397 (66.4)

Data are expressed as mean or n (%).
ECG, electrocardiography; ICA, internal carotid artery.
¹Area reduction measured by neurosonology.
*Among patients with ipsilateral infarction in the middle cerebral artery territory.