1992
DOI: 10.1212/wnl.42.11.2204
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Failure of high-dose heparin to prevent recurrent cardioembolic strokes in a pregnant patient with a mechanical heart valve

Abstract: A 27-year-old woman with a mechanical heart valve suffered multiple thromboembolic events while pregnant despite anticoagulation with high-dose heparin. Warfarin, the anti-coagulant of choice for patients with prosthetic heart valves, is teratogenic and can cause hemorrhagic complications at delivery. Heparin reduces thromboembolic complications, but is of uncertain efficacy. We discuss alternatives for the prevention of thromboembolic complications in pregnant women with mechanical heart valves.

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Cited by 27 publications
(15 citation statements)
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“…[3][4][5][6] One plausible explanation for the failure of heparin therapy in these women is the use of inadequate doses. However, the possibility that un-…”
mentioning
confidence: 99%
“…[3][4][5][6] One plausible explanation for the failure of heparin therapy in these women is the use of inadequate doses. However, the possibility that un-…”
mentioning
confidence: 99%
“…However, reports of thromobosed valves with UH in pregnancy have raised concerns about its effectiveness. [32][33][34][35] LMWH may be the anticoagulant of choice in pregnant women. 36 In clinical trials in nonpregnant patients, LMWH is at least as effective as UH.…”
Section: Pregnancy and Anticoagulationmentioning
confidence: 99%
“…Os estudos clínicos continuam apoiando o emprego da varfarina na anticoagulação permanente para portadoras de próteses mecâ-nicas e desencorajando o uso da HNF subcutânea [16][17][18][19][20] . Dados do InCor reforçam os da literatura ao mostrarem que 85% dos casos de tromboembolismo durante a gravidez de portadoras de próteses mecânicas associaram-se ao uso de HNF em alguma fase da gestação 2,21 .…”
Section: Recomendações Controle E Eficácia Da Anticoagulaçãounclassified