It was reported in this article titled, "treatment of slow-flow after primary percutaneous coronary intervention with flow-mediated hyperemia: the randomized rain-flow study" that there was one patient who had a proximal dissection in the left circumflex artery caused by the pressurewire x.This patient was treated according to the study protocol (with flow-mediated hyperemia) after treatment of the coronary dissection with stent implantation without further complications.Results from the rain-flow (treatment of slow-flow after primary percutaneous coronary intervention with flow-mediated hyperemia) study were discussed in this article.There were 67 patients with st-segment¿ elevation myocardial infarction and no reflow were randomized to receive either pharmacologic-mediated hyperemia with intracoronary adenosine or nitroprusside (n=30) versus flow-mediated hyperemia (n=37).Study enrollment was from january 23, 2021 to november 9, 2022.
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B3: date of event estimated.D4 - udi #: the udi number is unknown as the part and lot numbers were not provided.The device was not returned for analysis.The lot history record (lhr) for this product could not be reviewed and a similar complaint query could not be performed because the product was not returned for evaluation and the part and lot numbers were not reported.In this case, there was no reported device malfunction associated with the pressurewire.The reported patient effect of vascular dissection is listed in the pressurewire instruction for use as a known potential complication which may be encountered during all catheterization procedures.In this case, a conclusive cause for the reported patient effect, and the relationship to the product, if any, cannot be determined.A definitive cause for the reported patient effect, and the relationship to the product, if any, cannot be determined.The unexpected medical intervention appears to be related to circumstances of the procedure.There is no indication of a product quality issue with respect to manufacture, design, or labeling.Literature attachment e-181178 article titled: treatment of slow-flow after primary percutaneous coronary intervention with flow-mediated hyperemia: the randomized rain-flow study.
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