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. 2023 Jul 10;80(8):824–832. doi: 10.1001/jamaneurol.2023.2094

Table 3. Safety Outcomes in Patients Reported as Treated and Who Received at Least Some Dose of Either Thrombolytic Agent.

No./total No. (%) Risk difference (95% CI) P value
IV tenecteplase (n = 261) IV alteplase (n = 254)
Death within 90 d of randomization 52/261 (19.9) 46/254 (18.1) 1.8 (−5.0 to 8.6) .60
Symptomatic intracerebral hemorrhage 16/261 (6.1) 11/254 (4.3) 1.8 (−2.0 to 5.6) .43
Imaging identified intracranial hemorrhage 71/259 (27.4) 83/249 (33.3) −5.9 (−13.9 to 2.1) .15
Subarachnoid hemorrhage 32/259 (12.4) 31/249 (12.4) 0.0 (−5.8 to 5.6) .99
Subdural hemorrhage 1/259 (0.4) 2/249 (0.8) −0.4 (−1.8 to 0.9) .62
Intraventricular hemorrhagea 12/259 (4.6) 9/249 (3.6) 1.0 (−2.5 to 4.5) .66
HI1 (scattered small petechiae) 5/259 (1.9) 13/249 (5.2) −3.3 (−6.6 to 0.1) .06
HI2 (confluent petechiae) 26/259 (10.0) 35/249 (14.1) −4.0 (−9.6 to 6.3) .17
PH1 (hematoma occupying <30% of infarct with no substantive mass effect) 10/259 (3.9) 12/249 (4.8) −1.0 (−4.6 to 2.6) .67
PH2 (hematoma occupying ≥30% of infarct with obvious mass effect) 13/259 (5.0) 11/249 (4.4) 0.6 (−3.1 to 4.2) .84
Remote PH-1 4/259 (1.5) 2/249 (0.8) 0.7 (−1.1 to 2.6) .69
Remote PH-2 1/259 (0.4) 2/249 (0.8) −0.4 (−1.8 to 0.9) .62
Any PH 27/259 (10.4) 26/249 (10.4) 0.0 (−5.3 to 5.3) .99

Abbreviations: HI, hemorrhagic infarction; PH, parenchymal hematoma.

a

Imaging-identified intracranial hemorrhages were assessed using the Heidelberg classification.