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Plasma Brain Natriuretic Peptide Levels in Pregnancy

2014-08-27 03:44:48 | BioPortfolio

Summary

To evaluate the maternal blood concentrations of brain natriuretic peptide (BNP) during the second and third trimesters of a normal pregnancy. We will attempt to define a normal range for pregnancy and any outliers that may serve as markers for abnormal cardiovascular physiology.

Description

The brain natriuretic peptide (BNP) is a useful marker for volume overload, increased filling pressures and stretching of the myocardium. The current literature contains limited and unreliable information regarding normal BNP values in pregnancy. After baseline echocardiogram to detect individuals with asymptomatic structural defects, the participants will submit to 3 blood draws during the second and third trimester and at delivery to determine normal pregnancy values.

Study Design

Observational Model: Cohort, Time Perspective: Prospective

Conditions

Cardiomyopathy

Location

Oklahoma State University Center for Health Sciences
Tulsa
Oklahoma
United States
74127

Status

Completed

Source

Oklahoma State University Center for Health Sciences

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:44:48-0400

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Medical and Biotech [MESH] Definitions

A group of diseases in which the dominant feature is the involvement of the CARDIAC MUSCLE itself. Cardiomyopathies are classified according to their predominant pathophysiological features (DILATED CARDIOMYOPATHY; HYPERTROPHIC CARDIOMYOPATHY; RESTRICTIVE CARDIOMYOPATHY) or their etiological/pathological factors (CARDIOMYOPATHY, ALCOHOLIC; ENDOCARDIAL FIBROELASTOSIS).

An autosomal dominant inherited form of HYPERTROPHIC CARDIOMYOPATHY. It results from any of more than 50 mutations involving genes encoding contractile proteins such as VENTRICULAR MYOSINS; cardiac TROPONIN T; ALPHA-TROPOMYOSIN.

A form of CARDIAC MUSCLE disease, characterized by left and/or right ventricular hypertrophy (HYPERTROPHY, LEFT VENTRICULAR; HYPERTROPHY, RIGHT VENTRICULAR), frequent asymmetrical involvement of the HEART SEPTUM, and normal or reduced left ventricular volume. Risk factors include HYPERTENSION; AORTIC STENOSIS; and gene MUTATION; (FAMILIAL HYPERTROPHIC CARDIOMYOPATHY).

Inflammatory processes of the muscular walls of the heart (MYOCARDIUM) which result in injury to the cardiac muscle cells (MYOCYTES, CARDIAC). Manifestations range from subclinical to sudden death (DEATH, SUDDEN). Myocarditis in association with cardiac dysfunction is classified as inflammatory CARDIOMYOPATHY usually caused by INFECTION, autoimmune diseases, or responses to toxic substances. Myocarditis is also a common cause of DILATED CARDIOMYOPATHY and other cardiomyopathies.

An autosomal recessively inherited glycogen storage disease caused by GLUCAN 1,4-ALPHA-GLUCOSIDASE deficiency. Large amounts of GLYCOGEN accumulate in the LYSOSOMES of skeletal muscle (MUSCLE, SKELETAL); HEART; LIVER; SPINAL CORD; and BRAIN. Three forms have been described: infantile, childhood, and adult. The infantile form is fatal in infancy and presents with hypotonia and a hypertrophic cardiomyopathy (CARDIOMYOPATHY, HYPERTROPHIC). The childhood form usually presents in the second year of life with proximal weakness and respiratory symptoms. The adult form consists of a slowly progressive proximal myopathy. (From Muscle Nerve 1995;3:S61-9; Menkes, Textbook of Child Neurology, 5th ed, pp73-4)

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