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Background: Intermediate-high risk pulmonary embolism (PE) carries a significant risk of hemodynamic deterioration or death. Treatment should balance efficacy in reducing clot burden with the risk of complications, particularly bleeding. Previous studies on high-dose, short-term thrombolysis with alteplase (rtPA) showed a reduced risk of hemodynamic deterioration but no change in mortality and increased bleeding complications.

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Successful recovery of vision following intravenous thrombolysis using low-dose alteplase in central retinal artery occlusion.

Am J Emerg Med

January 2025

Department of Stroke and Cerebrovascular Diseases, University of Tsukuba Hospital, 2-1-1 Amakubo, Tsukuba, Ibaraki 305-8576, Japan; Department of Neurosurgery, Institute of Medicine, University of Tsukuba, 1-1-1 Tenno-dai, Tsukuba, Ibaraki 305-8575, Japan.

Article Synopsis
  • Central retinal artery occlusion (CRAO) is a serious eye condition that can lead to sudden vision loss, often with low chances of recovery, as highlighted in a case of a 49-year-old woman diagnosed with non-arteritic CRAO.
  • The patient received a lower-than-standard dose of intravenous rt-PA treatment shortly after the onset of her symptoms, which resulted in significant improvement of her vision and revealed a serious underlying heart condition, a patent foramen ovale (PFO).
  • This case suggests that using a lower dose of tPA may be effective for treating CRAO while reducing bleeding risks, and highlights the need for thorough investigations of potential cardiac issues in younger patients with CRAO.
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