2002
DOI: 10.1001/archinte.162.13.1451
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Preoperative or Postoperative Start of Prophylaxis for Venous Thromboembolism With Low-Molecular-Weight Heparin in Elective Hip Surgery?

Abstract: We find no convincing evidence that starting prophylaxis preoperatively is associated with a lower incidence of venous thromboembolism than starting postoperatively. Perioperative regimens may lower the risk of postoperative thrombosis, but if so, this positive effect is offset by an increase in postoperative major bleeding.

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Cited by 187 publications
(137 citation statements)
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References 50 publications
(49 reference statements)
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“…There was no difference in efficacy or safety when thromboprophylaxis was initiated C 12 hr either before or after surgery. 19 Importantly, a patient awaiting hip fracture surgery is at significant risk for VTE, 2 and surgical delay should prompt preoperative thromboprophylaxis while ensuring that the last dose is given at least 12 hr before surgery. Institutional VTE policies and pre-specified order sets are of particular value for reliably achieving such objectives.…”
Section: Casementioning
confidence: 99%
“…There was no difference in efficacy or safety when thromboprophylaxis was initiated C 12 hr either before or after surgery. 19 Importantly, a patient awaiting hip fracture surgery is at significant risk for VTE, 2 and surgical delay should prompt preoperative thromboprophylaxis while ensuring that the last dose is given at least 12 hr before surgery. Institutional VTE policies and pre-specified order sets are of particular value for reliably achieving such objectives.…”
Section: Casementioning
confidence: 99%
“…Atualmente, utilizam-se para esses fins drogas como a heparina não fracionada, a heparina de baixo peso molecular (como a enoxaparina) (22)(23)(24) e os antagonistas da vitamina K (9)(10)(25)(26)(27)(28)(29)(30)(31) . Apesar de esses fármacos serem eficazes em diminuir a incidência de TVP e TEP após cirurgia ortopédica, certas limitações restringem seu uso.…”
Section: Tabelaunclassified
“…É sabido que os pacientes submetidos a essa cirurgia apresentam risco aumentado para muitas complicações locais e sistêmicas (1,8) . Os fenômenos tromboembólicos representam os eventos adversos sistêmicos mais comuns de ATQ e são a maior causa de morte nos três primeiros meses após a operação, respondendo por mais de 50% da mortalidade pós-operatória (1)(2)(5)(6)(7)(8)(9)(10) . A TVP é responsável por alto núme-ro de mortes súbitas que ocorrem no pós-operatório imediato devido a embolia pulmonar, que na maioria das vezes não é diagnosticada, além de graves lesões que podem manifestar-se tardiamente.…”
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