Table 1. Clinical and thrombus characteristics of acute ischemic stroke patients with IV rt-PA resistant thrombi.

Age/gender	Time interval between symptom onset and thrombus retrieval (mins)	Initial NIHSS score	Location of occlusion	Cardiovascular risk factors	Thrombus type	Thrombus topography	Outcome at discharge (mRS)
80/man	383	19	Middle cerebral artery	Hypertension, hyperlipidemia	Erythrocytes dominant	Erythrocyte aggregates	1
63/man	427	17	Internal cerebral artery	Hyperlipidemia	Erythrocytes dominant	Random pattern	2
70/man	297	13	Middle cerebral artery	Hypertension, diabetes mellitus	Erythrocytes dominant	Erythrocyte aggregates	6
34/woman	424	31	Middle cerebral artery	Diabetes mellitus	Erythrocytes dominant	Erythrocyte aggregates	2
70/woman	253	20	Middle cerebral artery	Hypertension, hyperlipidemia	Mixed region dominant	Repeated pattern	5
76/woman	279	19	Middle cerebral artery	Hypertension, previous stroke	Fibrin dominant	Erythrocyte aggregates	6
79/man	225	19	Middle cerebral artery	None	Mixed region dominant	Repeated pattern	4

NIHSS – National institutes of Health stroke scale, mins – minutes, mRS-modified Rankin scale.

^†Random or repeated pattern of fibrin deposits with nest-like trapped erythrocytes.