Transcranial ultrasound analysis of cerebral blood flow during induced hypertension in acute ischemic stroke - a case series

The Ultrasound Journal

Table 1 Patient characteristics and ultrasound results

No.	Age, gender	Side	NIH-SS baseline/during IHT	Collateral pathways	MCA (affected side)			PCA (affected side)
					PSV _baseline	PSV _IHT	PSV _increase	PSV _baseline	PSV _IHT	PSV _increase
					(BP)	(BP)	(% per mmHg)	(BP)	(BP)	(% per mmHg)
1	66, M	Left, O	2/0	ROA, PCOA, LP	21 cm/s	29 cm/s	0.38	81 cm/s	160 cm/s	0.98
1	66, M	Left, O	2/0	ROA, PCOA, LP	(100 mmHg)	(200 mmHg)	0.38	(100 mmHg)	(200 mmHg)	0.98
2	81, M	Right, S	2/2	RACA, ROA, LP	51 cm/s	61 cm/s	0.78	83 cm/s	102 cm/s	0.92
2	81, M	Right, S	2/2	RACA, ROA, LP	(105 mmHg)	(130 mmHg)	0.78	(105 mmHg)	(130 mmHg)	0.92
3	76, M	Right, S	5/3	RACA	70 cm/s	85 cm/s	0.71	NA	NA	NA
3	76, M	Right, S	5/3	RACA	(185 mmHg)	(215 mmHg)	0.71	NA	NA	NA
4	71, M	Right, O	2/2	ROA, RACA	29 cm/s	37 cm/s	0.61	66 cm/s	82 cm/s	0.37
4	71, M	Right, O	2/2	ROA, RACA	(162 mmHg)	(207 mmHg)	0.61	(162 mmHg)	(227 mmHg)	0.37
5	71, M	Right, O	3/NA	ROA, RACA	24 cm/s	49 cm/s	1.45	NA	NA	NA
5	71, M	Right, O	3/NA	ROA, RACA	(120 mmHg)	(190 mmHg)	1.45	NA	NA	NA
6	58, F	Right, O	3/3	ROA, RACA	33 cm/s	45 cm/s	0.89	199 cm/s	227 cm/s	0.34
6	58, F	Right, O	3/3	ROA, RACA	(124 mmHg)	(165 mmHg)	0.89	(124 mmHg)	(165 mmHg)	0.34

Abbreviations: O, occlusion; S, stenosis; NIH-SS, NIH stroke scale; ROA, retrograde ophthalmic artery; RACA, retrograde A1-anterior cerebral artery; LP, leptomeningeal via PCA; PCOA, activated posterior communicating artery; PSV, peak systolic flow velocity; NA, not assessed; IHT, induced hypertension; BP, blood pressure; No., patient number; MCA, middle cerebral artery; PCA, posterior cerebral artery.