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1.
Value Health Reg Issues ; 34: 1-8, 2023 Mar.
Article in English | MEDLINE | ID: mdl-36335800

ABSTRACT

OBJECTIVES: Preeclampsia (PE) is a hypertensive disorder of pregnancy that can cause severe complications and adverse fetal/maternal outcomes. We aimed to estimate the annual economic impact of incorporating Elecsys® sFlt-1/PlGF PE ratio, which measures soluble fms-like tyrosine kinase-1 and placental growth factor, into routine clinical practice in Argentina to aid diagnosis of PE and hemolysis, elevated liver enzymes, and low platelets syndrome from second trimester onward in pregnancies with clinical suspicion of PE. METHODS: A decision tree was used to estimate annual economic impact on the Argentine health system as a whole, including relevant costs associated with diagnosis, follow-up, and treatment from initial presentation of clinically suspected PE to delivery. Annual costs of a standard-of-care scenario and a scenario including PE ratio (reference year 2021) were analyzed. RESULTS: The economic model estimated that using the sFlt-1/PlGF ratio would enable the overall health system to save ∼$6987 million Argentine pesos annually (95% confidence interval $12 045-$2952 million), a 39.1% reduction in costs versus standard of care, mainly due to reduced hospitalizations of women with suspected PE. The economic impact calculation estimated net annual savings of approximately $80 504 Argentine pesos per patient with suspected PE. Based on the assumed uncertainty of the parameters, the likelihood the intervention would be cost saving was 100% for the considered scenarios. CONCLUSION: Our analysis suggests that the implementation of the sFlt-1/PlGF ratio in women with suspected PE in Argentina will enable the health system to achieve significant savings, contributing to more efficient clinical management through the likely reduction of unnecessary hospitalizations, depending on assumptions. Results rest on the payers' ability to recover savings generated by the intervention.


Subject(s)
Pre-Eclampsia , Female , Humans , Pregnancy , Argentina , Biomarkers , Follow-Up Studies , Placenta Growth Factor , Pre-Eclampsia/diagnosis , Pre-Eclampsia/metabolism , Pregnant Women
4.
Angiogenesis ; 17(4): 867-79, 2014 Oct.
Article in English | MEDLINE | ID: mdl-24854678

ABSTRACT

OBJECTIVE: Acidosis is present in several pathological conditions where vasculogenesis takes place including ischemia, tumor growth and wound healing. We have previously demonstrated that acidosis induces human CD34+ cell apoptosis. Considering that endothelial colony-forming cells (ECFC) are a subpopulation of CD34+ cells and key players in vasculogenesis, in the present study we investigated the effect of acidosis on the survival and functionality of ECFC. APPROACH AND RESULTS: Endothelial colony-forming cells obtained by differentiation of human cord blood CD34+ cells in endothelial growth medium-2 for 14-21 days were exposed at pH 7.4, 7.0 or 6.6. We found that acidosis failed to induce ECFC apoptosis and, although an early reduction in proliferation, chemotaxis, wound healing and capillary-like tubule formation was observed, once the medium pH was restored to 7.4, ECFC proliferation and tubulogenesis were augmented. Stromal cell derived factor-1 (SDF1)-driven migration and chemokine receptor type 4 surface expression were also increased. The maximal proangiogenic effect exerted by acidic preconditioning was observed after 6 h at pH 6.6. Furthermore, preconditioned ECFC showed an increased ability to promote tissue revascularization in a murine model of hind limb ischemia. Immunoblotting assays showed that acidosis activated AKT and ERK1/2 and inhibited p38 pathways. Proliferation rises triggered by acidic preconditioning were no longer observed after AKT or ERK1/2 inhibition, whereas p38 suppression not only mimicked but also potentiated the effect of acidosis on ECFC tubule formation abilities. CONCLUSIONS: These results demonstrate that acidic preconditioning greatly increases ECFC-mediated angiogenesis in vitro including ECFC proliferation, tubulogenesis and SDF1-driven chemotaxis and is a positive regulator of microvessel formation in vivo.


Subject(s)
Acids/chemistry , Culture Media/chemistry , Endothelial Cells/cytology , Stem Cells/cytology , Animals , Antigens, CD34/metabolism , Apoptosis , Cell Cycle , Cell Differentiation , Cell Proliferation , Chemotaxis , Humans , Hydrogen-Ion Concentration , Ischemia/pathology , Male , Mice , Mice, Nude , Neovascularization, Physiologic/drug effects , Wound Healing
6.
Blood Coagul Fibrinolysis ; 16(1): 31-5, 2005 Jan.
Article in English | MEDLINE | ID: mdl-15650543

ABSTRACT

The endothelial cells produce substances whose elevated plasma levels acquire predictive value for the development of events. For instance, soluble thrombomodulin (sTM) levels evidence endothelial cell injury. Under specific clinical conditions the levels of sTM are raised, such as in patients with certain autoimmune disorders, pre-eclampsia or antiphospholipid syndrome. The levels of sTM, as an endothelial injury marker, were evaluated in 65 women with a history of recurrent pregnancy loss (12 with autoimmune disorders, 19 pregnant women and nine with a history of gestational hypertension or pre-eclampsia or eclampsia); 13 of them had antiphospholipid antibodies. sTM levels could be used as a predictor of pregnancy loss in future prospective studies. We compared those levels with the levels found in control groups without recurrent pregnancy loss (20 healthy women and 14 women with autoimmune disorder). There were no statistically significant differences (P = 0.729) in the levels of sTM between the recurrent pregnancy loss group (31.1 ng/ml) and the healthy control group (31.4 ng/ml) or between the different subgroups with recurrent pregnancy loss (P = 0.873) and the healthy control group or the control group with autoimmune disorder (28.0 ng/ml). There were no statistically significant differences (P = 0.605) in the levels of sTM among the patients with recurrent pregnancy loss, with or without moderate or high antiphospholipid antibodies (32.0 versus 23.3 ng/ml). Consequently, the levels of sTM would not seem to be a useful tool, as an endothelial injury marker, in women with a history of recurrent pregnancy loss with or without antiphospholipid antibodies.


Subject(s)
Abortion, Habitual/blood , Antibodies, Antiphospholipid/blood , Pre-Eclampsia/blood , Thrombomodulin/blood , Adult , Biomarkers/blood , Endothelium, Vascular/physiopathology , Female , Humans , Pregnancy
16.
Buenos Aires; El Ateneo; 1997. 215 p. ilus, tab, graf. (59744).
Monography in Spanish | BINACIS | ID: bin-59744
17.
Buenos Aires; El Ateneo; 1997. 215 p. ilus, tab, graf.
Monography in Spanish | BINACIS | ID: biblio-1188001
18.
Rev. argent. transfus ; 22(3): 197-202, jul.-sept. 1996. tab
Article in Spanish | LILACS | ID: lil-248854

ABSTRACT

La transfusión fetal intrauterina es el tratamiento empleado en casos de isoinmunización severa por anti-D. Sin embargo, su eficacia se ve reducida en los casos muy severos de hidrops fetal de desarrollo temprano, antes de que la transfusión sea técnicamente posible de realizar. Objetivo: evaluar si el inicio temprano del tratamiento con gammaglobulina a altas dosis, seguida por transfusiones intrauterinas, reduce la severidad de la anemia fetal, el desarrollo de hidrops e incrementa la sobrevida fetal. Material y método: investigación clínica retrospectiva con controles concurrentes no aleatorizados: -Grupo gammaglobulina (grupo experimental): 16 pacientes que iniciaron el tratamiento con gammaglobulina antes de la semana 21 y luego complementaron con TIU luego de la semana 23. -Grupo TIU (grupo control): 31 pacientes que iniciaron TIU a una edad gestacional igual o menor a 25 semanas. Resultados: Ambos grupos fueron homogéneos en relación con el antecedente de muertes perinatales y títulos de anticuerpos anti-D. El número de hidrops fetal a la primera TIU y de muertes fetales fue significativamente superior en el Grupo TIU en comparación con el Grupo Gamma. El hematocrito fetal a la primera TIU y al nacimiento no fue diferente entre ambos grupos, aunque la proporción de fetos con anemia severa fue mayor en el Grupo TIU. Conclusión: Las evidencias sugieren que la terapéutica propuesta mejora la sobrevida fetal.


Subject(s)
Humans , Pregnancy , Infant, Newborn , Erythroblastosis, Fetal/mortality , Erythroblastosis, Fetal/therapy , gamma-Globulins/administration & dosage , Blood Transfusion, Intrauterine/methods , Fetal Mortality , Hydrops Fetalis/complications
19.
Rev. argent. transfus ; 22(3): 197-202, jul.-sept. 1996. tab
Article in Spanish | BINACIS | ID: bin-14180

ABSTRACT

La transfusión fetal intrauterina es el tratamiento empleado en casos de isoinmunización severa por anti-D. Sin embargo, su eficacia se ve reducida en los casos muy severos de hidrops fetal de desarrollo temprano, antes de que la transfusión sea técnicamente posible de realizar. Objetivo: evaluar si el inicio temprano del tratamiento con gammaglobulina a altas dosis, seguida por transfusiones intrauterinas, reduce la severidad de la anemia fetal, el desarrollo de hidrops e incrementa la sobrevida fetal. Material y método: investigación clínica retrospectiva con controles concurrentes no aleatorizados: -Grupo gammaglobulina (grupo experimental): 16 pacientes que iniciaron el tratamiento con gammaglobulina antes de la semana 21 y luego complementaron con TIU luego de la semana 23. -Grupo TIU (grupo control): 31 pacientes que iniciaron TIU a una edad gestacional igual o menor a 25 semanas. Resultados: Ambos grupos fueron homogéneos en relación con el antecedente de muertes perinatales y títulos de anticuerpos anti-D. El número de hidrops fetal a la primera TIU y de muertes fetales fue significativamente superior en el Grupo TIU en comparación con el Grupo Gamma. El hematocrito fetal a la primera TIU y al nacimiento no fue diferente entre ambos grupos, aunque la proporción de fetos con anemia severa fue mayor en el Grupo TIU. Conclusión: Las evidencias sugieren que la terapéutica propuesta mejora la sobrevida fetal. (AU)


Subject(s)
Humans , Pregnancy , Infant, Newborn , gamma-Globulins/administration & dosage , Blood Transfusion, Intrauterine/methods , Erythroblastosis, Fetal/therapy , Erythroblastosis, Fetal/mortality , Fetal Mortality , Hydrops Fetalis/complications
20.
Bol. Acad. Nac. Med. B.Aires ; 73(2): 569-75, jun.-dic. 1995. tab
Article in Spanish | LILACS | ID: lil-201722

ABSTRACT

La preeclampsia es un desorden médico frecuente que afecta entre el 5 y el 13 por ciento de las embarazadas contribuyendo en forma significativa a la morbimortalidad materno-fetal (1,2). Constituyendo la primera causa de muerte materna en los países en vías de desarrollo. Es más frecuente en primigestas y en aquellas mujeres que se hallan en los extremos de su vida reproductiva. Por lo general se pone de manifiesto en el tercer trimestre del embarazo. El síndrome Hellp es una complicación multisistémica que acompaña a los cuadros severos de preeclampsia y eclampsia. Se caracteriza por la presencia de anemia hemolítica microangiopática, disfunción hepática y trombocitopenia. Aparece como complicación en el 4 a 12 por ciento de las preclampsias severas y en el 30-50 por ciento de las eclampsias. La mortalidad materna estimada es del 2 al 3 por ciento y se debe a falla orgánica múltiple: hemorragia, trombosis, hematoma hepático con rotura, necrosis tubular aguda y edema pulmonar no cardiogénico.


Subject(s)
Humans , Female , Pregnancy , Adult , Anemia, Hemolytic , Eclampsia/complications , Maternal Mortality , Platelet Activation , Pre-Eclampsia/complications , HELLP Syndrome/complications , HELLP Syndrome/diagnosis , HELLP Syndrome/mortality , Lipoproteins, HDL/deficiency , Platelet Count , Pregnancy Trimester, Third
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