The St. Jude Medical bileaflet valve prosthesis

Chaux, Aurelio; Czer, L.; Matloff, Jack M.; DeRobertis, Michele; Stewart, Morgan E.; Bateman, Timothy M.; Kass, Robert M.; Lee, Myles E.; Gray, Richard

doi:10.1016/s0022-5223(19)35438-8

Cited by 49 publications

(9 citation statements)

References 14 publications

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“…These valves are useful in small children and patients with narrow valve rings, and have been widely used since 1978. Postoperative prosthetic valve function in adults has been evaluated using CWD echocardiography [7-91 or cardiac catheterization [13]. However, data in children are scarce except for information obtained by cardiac catheterization [14], and no data by CWD echocardiography are available.…”

Section: Discussionmentioning

confidence: 99%

Continuous Wave Doppler Echocardiographic Evaluation of St. Jude Prosthetic Mitral Valves in Children

Matsuoka¹,

Nishiguchi²,

Nakachi³

et al. 1990

Pediatrics International

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The function of 9 St. Jude prosthetic mitral valves in 8 children was evaluated by continuous wave Doppler (CWD) echocardiography 28±22 months after implantation. All valves were apparently functioning normally on clinical examination. Peak flow velocity, mean flow velocity, pressure half‐time and mean pressure gradient were determined from the transmitral flow velocity curve by CWD echocardiography. For comparison, the same parameters were examined in 15 normal children and 14 adults who had undergone mitral valve replacement. All measured values were greater in adults and children who had undergone valve replacement than in normal children. There were no differences in any parameter in adults or children in whom prostheses 25 mm or larger had been implanted. Although 3 children in whom prostheses 23 mm or smaller had been implanted had greater values for each parameter than those who received 25 mm or larger prostheses, there were no symptoms or signs of mitral stenosis. These data may be useful as guidelines for normal Doppler characteristics for St. Jude mitral valves in children. In an asymptomatic child whose prosthetic valve developed obstruction by granulation tissue overgrowth, each parameter significantly worsened as the heart rate increased. The changes in these parameters in 2 normally functioning St. Jude valves during atrial pacing were insignificant. The fluctuation of Doppler characteristics with changes in heart rate is useful for differentiating normally functioning prosthetic valves from impending stenosis.

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Section: Discussionmentioning

confidence: 99%

Continuous Wave Doppler Echocardiographic Evaluation of St. Jude Prosthetic Mitral Valves in Children

Matsuoka¹,

Nishiguchi²,

Nakachi³

et al. 1990

Pediatrics International

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“…In patients with mechanical heart valves, throm boembolic events remain a major persistent problem with progressively fewer patients remaining event-free over time [4][5][6][7][8][9][10][11][12][13][14][15] (Table 1). In a recent study at the Mayo Clinic 15 patients with the presently used aortic or mitral Starr-Edwards prostheses were followed for 10 to 19 years, all on anticoagulants ( Fig.…”

Section: Mechanical Prosthesesmentioning

confidence: 99%

“…Murphy et al 4 Perier et al 5,6 Björk-Shiley valve Murphy et al 4 Perier et al 5,6 Horstkotte et al 7 Marshall et al 8 Cohn et al 9,10 St. Jude valve Horstkotte et al 7 Douglas et al 11 Chaux et al 12 (if antiplatelet treatment only) Baudet et al 13 (if no oral anticoagulant therapy) Arom et al 14 1983 1984, 1985 1983 1984, 1985 1983 1983 1984, 1985 1983 1985 1984 1985 1985 ANTITHROMBOTIC THERAPY…”

Section: Starr-edwards Valvementioning

confidence: 99%

“…In patients who are unable to take anticoagulant therapy, the use of sulfinpyrazone (800 mg/day) or dipyridamole (400 mg/day) may be considered, al though in prosthetic heart valves the efficacy of plate let inhibitors alone is highly questionable, 46,51,52 per haps with the possible exception of children. 53,54 Any patient who has recurrent thromboembolism despite adequate antithrombotic therapy should be seriously considered as a candidate for repeat valve replacement.…”

Section: Present Recommendationsmentioning

confidence: 99%

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Prevention of Thromboembolism Induced by Prosthetic Heart Valves

Fuster¹,

Badimón²,

Badimon³

et al. 1988

Semin Thromb Hemost

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“…Predisposing factors are atrial fibrillation, atrial thrombosis, previous embolism, difficult left atrial emptying, low output and turbulence related to prosthetic model [6]. The size of the prosthetic valves does not seem significant, while the role of age greater than 60 years [7] and megaatrium [8] is still controversial. It is noteworthy that thrombosis is absent in young patients (under 20 years old) [9] and its incidence is increased during pregnancy [1].…”

Section: Introductionmentioning

confidence: 99%