lunes, 21 de agosto de 2017

Cardiopatía periparto / Peripartum cardiomyopathy



Agosto 20, 2017. No. 2786






Cardiopatía periparto. Una revisión sistemática
Peripartum Cardiomyopathy: A Systematic Review
Viviana Aursulesei and Mihai Dan Datcu
Cardiopatía periparto desde una perspepectiva genética
Peripartum Cardiomyopathy From a Genetic Perspective.
Circ J. 2016 Jul 25;80(8):1684-8. doi: 10.1253/circj.CJ-16-0342. Epub 2016 Jul 6.
Abstract
Peripartum cardiomyopathy (PPCM) is a rare, but life-threatening condition that occurs during the peripartum period in previously healthy women. Although its etiology remains unknown, potential risk factors include hypertensive disorders during pregnancy, such as preeclampsia, advanced maternal age, multiparity, multiple gestation, and African descent. Several cohort studies of PPCM revealed that the prevalence of these risk factors was quite similar. Clinically, approximately 40% of PPCM patients are complicated with hypertensive disorders during pregnancy. Because PPCM is a diagnosis of exclusion, heterogeneity is a common element in its pathogenesis. Recent genetic research has given us new aspects of the disease. PPCM and dilated cardiomyopathy (DCM) share genetic predisposition: 15% of PPCM patients were found to have genetic mutations that have been associated with DCM, and they showed a lower recovery rate. Other basic research using PPCM model mice suggests that predisposition genes related to both hypertensive and cardiac disorders via angiogenic imbalance may explain common elements of hypertensive disorders and PPCM. Furthermore, hypertensive disorders during pregnancy are now found to be a risk factor of not only PPCM, but also cardiomyopathy in the future. Understanding genetic variations allows us to stratify PPCM patients and to guide therapy. (Circ J 2016; 80: 1684-1688).
Reducción fisiológica de la función contráctil del ventrículo izquierdo en mujeres postparto sanas: Posible superposición con miocardiopatía periparto.
Physiological Reduction in Left Ventricular Contractile Function in Healthy Postpartum Women: Potential Overlap with Peripartum Cardiomyopathy.
PLoS One. 2016 Feb 9;11(2):e0147074. doi: 10.1371/journal.pone.0147074. eCollection 2016.
Abstract
AIMS: Peripartum cardiomyopathy is a potentially life-threatening cause of heart failure, commoner in Afro-Caribbean than Caucasian women. Its diagnosis can be challenging due to physiological changes in cardiac function that also occur in healthy women during the early postpartum period. This study aimed to (i) establish the overlap between normal cardiac physiology in the immediate postpartum period and pathological changes in peripartum cardiomyopathy ii) identify any ethnicity-specific changes in cardiac function and cardiac biomarkers in healthy postpartum women. METHODS AND RESULTS: We conducted a cross-sectional study of 58 healthy postpartum women within 48 hours of delivery and 18 matched non-pregnant controls. Participants underwent cardiac assessment by echocardiography and strain analysis, including 3D echocardiography in 40 postpartum women. Results were compared with 12 retrospectively studied peripartum cardiomyopathy patients. Healthy postpartum women had significantly higher left ventricular volumes and mass, and lower ejection fraction and global longitudinal strain than non-pregnant controls. These parameters were significantly more impaired in peripartum cardiomyopathy patients but with overlapping ranges of values. Healthy postpartum women had higher levels of adrenomedullin, placental growth factor (PlGF) and soluble fms-like tyrosine kinase-1 (sFlt1) compared to controls. The postpartum state, adrenomedullin, sFlt1 and the sFlt1:PlGF ratio were independent predictors of LV remodelling and function in healthy postpartum women. CONCLUSION: Healthy postpartum women demonstrate several echocardiographic indicators of left ventricular remodelling and reduced function, which are associated with altered levels of angiogenic and cardiac biomarkers.

XIV Congreso Virtual Mexicano de Anestesiología 2017
Octubre 1-Diciembre 31, 2017
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