One year follow-up of patients with reduced left ventricular ejection fraction (LVEF) on lipoprotein apheresis.
Atheroscler Suppl
; 40: 44-48, 2019 Dec.
Article
en En
| MEDLINE
| ID: mdl-31818449
ABSTRACT
BACKGROUND:
Left ventricular ejection fraction (LVEF) is a valuable measure to assess left ventricular systolic function. Lipid lowering therapy by statins has been shown to have an impact on LVEF already after a 6 months treatment. Higher doses of statins have been claimed to be more effective as compared to a conventional one and even a difference between lipophilic and hydrophilic compounds has been reported. The effect of regular lipoprotein-apheresis (LP-apheresis) on LVEF was previously poorly examined. Patients involved in a regular LP-apheresis program are supposed to undergo a number of follow-up investigations among them myocardial scintigraphy and LVEF, measured by radionuclide ventriculography.METHODS:
We examined 18 patients before initiation and after one year of ongoing LP-apheresis. 13 patients (11 males, 2 females, mean age 58.3⯱â¯5.3 years, groups A) were since more than a year on stable, unchanged statin treatment (atorvastatin 40â¯mg, simvastatin 40â¯mg, rosuvastatin 20â¯mg±ezetimibe), the other 5 patients (3 males, 2 females, mean age 57.1⯱â¯4.6 years, group B) were intolerant to statins being on micronized fenofibrate±resorption inhibitors (cholestyramine). All patients had a Lp(a)â¯<â¯30â¯mg/dl. As part of the usual follow-up monitoring, LVEF was determined by means of radionuclide ventriculography after application of 550 MBq 99m Tc-pertechnetate.RESULTS:
The follow-up LVEF was checked at a mean of 48.7 weeks in group A and 51.2 weeks in group B. Except in 1 patient (LVEF 46.8% before vs. 45.2% after LP-apheresis initiation) in group A we noted a significant increase in LVEF in 12 patients of group A (92%) and in all patients of group B. Mean LVEF increased significantly in both groups (A 42.7±8.1â¯ââ¯46.5±7.5% (pâ¯<â¯0.001) and B 41.9±8.4â¯ââ¯46.5±6.3 %; pâ¯<â¯0.001). The relative rise was nearly identical (group A 9.6%, in group B 9.7%).CONCLUSIONS:
Our findings indicate that regular long-term LP-apheresis treatment apparently increases LVEF, independently on current statin treatment. This implies a role of lowering of atherogenic lipoproteins as underlying mechanism. A prospective study should clarify the relative extent of LVEF improvement induced by LP-apheresis.Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Volumen Sistólico
/
Eliminación de Componentes Sanguíneos
/
Hiperlipidemias
Tipo de estudio:
Observational_studies
/
Prognostic_studies
Límite:
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Atheroscler Suppl
Asunto de la revista:
ANGIOLOGIA
Año:
2019
Tipo del documento:
Article
País de afiliación:
Austria