Anticoagulation in pregnant women with mechanical heart valve prostheses: Case reports and a literature review

2021 ◽  
Vol 28 (1) ◽  
pp. 68
Author(s):  
PhilipAlaba Adebola ◽  
FolasadeA Daniel ◽  
YusufA Oshodi ◽  
Abidoye Gbadegesin ◽  
OlagokeK Ale ◽  
...  
Keyword(s):  
Literature Review ◽  
Pregnant Women ◽  
Heart Valve ◽  
Case Reports ◽  
Mechanical Heart Valve ◽  
Heart Valve Prostheses ◽  
Valve Prostheses

scholarly journals Anticoagulation in Pregnant Women With Mechanical Heart Valve Prostheses

2000 ◽  
Vol 55 (2) ◽  
pp. 72
Author(s):  
S. S. Meschengieser ◽  
C. G. Fondevila ◽  
M. T. Santarelli ◽  
M. A. Lazzari
Keyword(s):  
Pregnant Women ◽  
Heart Valve ◽  
Mechanical Heart Valve ◽  
Heart Valve Prostheses ◽  
Valve Prostheses

scholarly journals Anticoagulation in pregnant women with mechanical heart valve prostheses

Heart ◽  
1999 ◽  
Vol 82 (1) ◽  
pp. 23-26 ◽  
Author(s):  
S S Meschengieser ◽  
C G Fondevila ◽  
M T Santarelli ◽  
M A Lazzari
Keyword(s):  
Pregnant Women ◽  
Heart Valve ◽  
Mechanical Heart Valve ◽  
Heart Valve Prostheses ◽  
Valve Prostheses

Hydraulic functional characterisation of aortic mechanical heart valve prostheses through lumped-parameter modelling

2002 ◽  
Vol 35 (10) ◽  
pp. 1427-1432 ◽  
Author(s):  
G.B Fiore ◽  
M Grigioni ◽  
C Daniele ◽  
G D’Avenio ◽  
V Barbaro ◽  
...  
Keyword(s):  
Heart Valve ◽  
Mechanical Heart Valve ◽  
Heart Valve Prostheses ◽  
Functional Characterisation ◽  
Lumped Parameter ◽  
Valve Prostheses

scholarly journals The Effect of Nicoumalone on Embryogenesis: A Retrospective Study

2018 ◽  
Vol 03 (02/03) ◽  
pp. 189-192
Author(s):  
Chaitanya Nelavayi ◽  
Kumar Achukatla ◽  
Bhanu Badhvel ◽  
Sree Gurram ◽  
Vanajakshamma Velam ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Pregnant Women ◽  
Valve Replacement ◽  
Heart Valve ◽  
Mechanical Heart Valve ◽  
Medical Sciences ◽  
Live Births ◽  
Replacement Surgery ◽  
Valve Prostheses ◽  
Valve Replacement Surgery

Abstract Objective To study the effect of nicoumalone on embryogenesis in women who have undergone mechanical heart valve replacement surgery. Design It is a retrospective study done at Sri Venkateswara Institute of Medical Sciences (SVIMS), Tirupati. Results Total 28 pregnancies were reported in 12 women with mechanical heart valve prostheses. Of these, 19 were live births, 9 abortions, and no stillbirths and miscarriages were noted in pregnant women. There were 11 hemorrhagic, 3 neurologic, 2 thromboembolic, and 1 stuck valve complications observed in mothers; and 2 low birth weights, 2 pneumonia, and 1 jaundice observed in the child. Conclusion There were no abnormalities observed in children whose mothers were taking nicoumalone throughout pregnancy based on echo results and clinical examination.

In Vitro Hemolysis by Mechanical Heart Valve Prostheses with Tilting Disc

1992 ◽  
Vol 15 (11) ◽  
pp. 681-685 ◽  
Author(s):  
M.O. Wendt ◽  
M. Pohl ◽  
S. Pratsch ◽  
D. Lerche
Keyword(s):  
Heart Valve ◽  
Test Chamber ◽  
Mechanical Heart Valve ◽  
Hemoglobin Concentration ◽  
Clinical Results ◽  
Artificial Heart Valve ◽  
Valve Prosthesis ◽  
Heart Valve Prostheses ◽  
Valve Prostheses

Hemolytic and subhemolytic blood damage by mechanical heart valve prostheses have been observed in both clinical and in vitro investigations. A direct comparison between these studies is not possible. Nevertheless the transfer of some in vitro results to the behaviour of the valve in situ may be performed considering the similarity principle. This requires the use of dimensionless similarity numbers such as the plasma's hemoglobin concentration (PHb) or others, instead of dimensioned parameters. To evaluate the in vitro hemolysis of valve prosthesis a test chamber filled with human banked blood was used. An artificial ventricle ensuring an oscillatory flow through the valve was also used. The rise of PHb was evaluated in terms of a similarity number, called the lysis number. This number describes the probability of destroying a single red blood cell participating once in the hemolytic process under consideration. The lysis number, a Björk-Shiley valve (TAD 29), was found to be in the order of 2 × 10−4. From this, the survival time of erythrocytes in patients with an artificial heart valve was estimated. It was found to be in the order of 20 d of T50 Cr in agreement with clinical results

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