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Even with unfractionated heparin or derivates, the reversal of pharmacologic anticoagulation is crucial in anticoagulated patients developing a life-threatening bleeding or scheduled for an emergency procedure. The antagonisation of unfractionated heparin is well codified: each milligram of protamine sulfate antagonizes 100 IU of heparin. Measurement of thrombin time reflects the anti-IIa effect of heparin and has to be monitored immediately and 1 hour after the injection of protamine. The required dose of protamine sulfate depends on dosage and time of LMWH administration, although no clinical study supports these data. To date, there is no effective antidote for new anticoagulants (fondaparinux and other pentasaccharides, direct thrombin inhibitors, direct anti-Xa inhibitors). Some preliminary studies suggest the effectiveness of recombinant activated factor VII for pentasaccharides and activated or not Prothrombin Complex Concentrates and recombinant activated factor VII for oral anti-Xa and anti-IIa agents. Therefore, while the characteristics of these new anticoagulants could increase the comfort and improve the compliance, their development needs to ascertain the lack of increase in bleeding complications and the need for a safe and effective antidote. 相似文献
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Extracorporeal life support in lung and heart–lung transplantation for pulmonary hypertension in adults 下载免费PDF全文
Talna Kortchinsky Sacha Mussot Saïda Rezaiguia Margaux Artiguenave Elie Fadel François Stephan 《Clinical transplantation》2016,30(9):1152-1158
After bilateral lung and heart–lung transplantation in adults with pulmonary hypertension, hemodynamic and oxygenation deficiencies are life‐threatening complications that are increasingly managed with extracorporeal life support (ECLS). The primary aim of this retrospective study was to assess 30‐day and 1‐year survival rates in patients managed with vs without post‐operative venoarterial ECLS in 2008–2013. The secondary endpoints were the occurrence rates of nosocomial infection, bleeding, and acute renal failure. Of the 93 patients with pulmonary hypertension who received heart‐lung (n=29) or bilateral lung (n=64) transplants, 28 (30%) required ECLS a median of 0 [0–6] hours after surgery completion and for a median of 3.0 [2.0–8.5] days. Compared to ECLS patients, controls had higher survival at 30 days (95.0% vs 78.5%; P=.02) and 1 year (83% vs 64%; P=.005), fewer nosocomial infections (48% vs 79%; P=.0006), and fewer bleeding events (17% vs 43%; P=.008). The need for renal replacement therapy was not different between groups (11% vs 17%; P=.54). Venoarterial ECLS is effective in treating pulmonary graft dysfunction with hemodynamic failure after heart‐lung or bilateral lung. However, ECLS use was associated with higher rates of infection and bleeding. 相似文献
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Kortchinsky T Meyer P Blanot S Orliaguet G Puget S Carli P 《Pediatric emergency care》2008,24(3):161-163
Children involved in high-speed vehicle collision could be particularly exposed to severe injuries when adult restraints are used. We report a case where adult 3-point restraint used without booster seat was responsible for severe thoracic injury resulting in complete shoulder and clavicle dislocation, occipito-atloidal dislocation, and complete disruption of right common carotid artery in a 7-year-old boy. Misplacement of the adult shoulder harness at the base of the neck could be directly responsible for these lethal injuries, which could probably be avoided by concomitant use of a booster seat. 相似文献
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