Background: Preoperative anticoagulant therapy is known to have a positive impact on the prognosis of patients with acute limb ischemia (ALI). However, little is known about its efficacy in elderly patients. We aimed to investigate the potential effect of anticoagulation in nonagenarian patients managed for ALI.
Methods: Between January 2015 and December 2021, we identified all nonagenarian patients managed for ALI at a single center. Long-term anticoagulation and hemostasis parameters (prothrombin rate, activated partial thromboplastin time [APTT], platelet count) measured on admission were reviewed. The primary end point was mortality at 30-day mortality (D30) in patients with or without long-term anticoagulation therapy. We also studied the effect of these factors on the occurrence of revascularization failure in operated patients (initial failure, ischemic recurrence during hospitalization, necrosis requiring major amputation).
Results: A total of 68 nonagenarian patients were managed for ALI, with a mean age of 93.8 years (from 90-107 years), 76.5% of whom were women. Of these patients, 47 (69%) were managed surgically. Long-term anticoagulation therapy was associated with better survival at D30, both in nonoperated (P < 0.01) and operated (P < 0.05) patients. In operated patients, the absence of long-term anticoagulation therapy was associated with the occurrence of revascularization failure (P < 0.05). In operated patients, survival to D30 and successful revascularization were associated with a longer APTT (P < 0,05). We were able to observe the survival of 4 patients contraindicated for surgery and treated with a single medical therapy (intravenous unfractionated heparin).
Conclusions: Anticoagulation appears to have an impact on the survival and postoperative prognosis of nonagenarian patients with ALI. In addition, curative anticoagulation therapy may be an alternative treatment when surgery is contraindicated in this frail population.
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| http://dx.doi.org/10.1016/j.avsg.2023.09.075 | DOI Listing |
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