scholarly journals Temporal and spatial performance of vector velocity imaging in the human fetal heart

2011 ◽  
Vol 37 (2) ◽  
pp. 150-157 ◽  
Author(s):  
H. Matsui ◽  
I. Germanakis ◽  
E. Kulinskaya ◽  
H. M. Gardiner
Keyword(s):  
Fetal Heart ◽  
Velocity Imaging ◽  
Vector Velocity ◽  
Human Fetal Heart ◽  
Spatial Performance ◽  
Temporal And Spatial

Expression of the Atrial Natriuretic Peptide Gene in Human Fetal Heart*

1989 ◽  
Vol 69 (4) ◽  
pp. 729-737 ◽  
Author(s):  
D. G. GARDNER ◽  
B. K. HEDGES ◽  
J. WU ◽  
M. C. LAPOINTE ◽  
C. F. DESCHEPPER
Keyword(s):  
Atrial Natriuretic Peptide ◽  
Natriuretic Peptide ◽  
Fetal Heart ◽  
Human Fetal Heart ◽  
Peptide Gene ◽  
Atrial Natriuretic

Corticotropin-releasing factor (CRF) system localization in human fetal heart

HORMONES ◽  
2016 ◽  
Vol 15 (1) ◽  
pp. 54-64 ◽  
Author(s):  
Efterpi Chouridou ◽  
Maria Lambropoulou ◽  
Maria Koureta ◽  
Christina Zarouchlioti ◽  
Ioanna Balgouranidou ◽  
...  
Keyword(s):  
Fetal Heart ◽  
Corticotropin Releasing Factor ◽  
Human Fetal Heart ◽  
Crf System

scholarly journals Endothelial Growth Factor Receptors in Human Fetal Heart

Circulation ◽  
1999 ◽  
Vol 100 (6) ◽  
pp. 583-586 ◽  
Author(s):  
Taina A. Partanen ◽  
Taija Makinen ◽  
Johanna Arola ◽  
Toshio Suda ◽  
Herbert A. Weich ◽  
...  
Keyword(s):  
Growth Factor ◽  
Fetal Heart ◽  
Growth Factor Receptors ◽  
Human Fetal Heart ◽  
Endothelial Growth Factor

scholarly journals Distinct expression patterns of connexins in the chambers and conduction system of the human fetal heart

2002 ◽  
Vol 39 ◽  
pp. 229
Author(s):  
Riyaz A. Kaba ◽  
Steven R. Coppen ◽  
Emmanuel Dupont ◽  
Jeremy N. Skepper ◽  
Suzy Elneit ◽  
...  
Keyword(s):  
Fetal Heart ◽  
Expression Patterns ◽  
Conduction System ◽  
Human Fetal Heart

The Effect of Neuromuscular Blockade on Human Fetal Heart Rate and Its Variation

1994 ◽  
Vol 38 (5) ◽  
pp. 271
Author(s):  
JOHN A. D. SPENCER ◽  
GREG RYAN ◽  
DANIEL RONDEROS-DUMIT ◽  
UMBERTO NICOLINI ◽  
CHARLES H. RODECK
Keyword(s):  
Heart Rate ◽  
Neuromuscular Blockade ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Human Fetal Heart

scholarly journals Ventricular myocardium development and the role of connexins in the human fetal heart

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Eleftheria Pervolaraki ◽  
James Dachtler ◽  
Richard A. Anderson ◽  
Arun V. Holden
Keyword(s):  
Fetal Heart ◽  
Ventricular Myocardium ◽  
Human Fetal Heart

P1771Right ventricular mechanical changes after septal myectomy for obstructive hypertrophic cardiomyopathy. Vector velocity imaging study

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
H Badran ◽  
G Soltan ◽  
N Faheem ◽  
M Ezzat ◽  
M H Yacoub
Keyword(s):  
Hypertrophic Cardiomyopathy ◽  
Nyha Class ◽  
Imaging Study ◽  
Functional Class ◽  
Class Iii ◽  
Septal Myectomy ◽  
Cardiac Phenotype ◽  
Velocity Imaging ◽  
Vector Velocity ◽  
Surgical Myectomy

Abstract Objectives The impairment of right ventricular (RV) myocardial mechanics is evident in hypertrophic cardiomyopathy (HCM). It is independently influenced by LV mechanics and correlated to the severity of LV phenotype. We investigated the changes in RV global and regional deformation following surgical septal myectomy using vector velocity imaging (VVI). Methods 25 HCM patients, 68% males with mean age (34.5±12 years) were examined before and within two months after surgical myectomy using VVI. In addition to conventional echocardiographic parameters, peak systolic strain (εsys), strain rate (SR) and time to peak εsys (TTP) of regional RV free wall (RVFW) & septal walls were analyzed in longitudinal (long) directions from apical four chamber view and their (Δ)changes were calculated. Similar parameters were quantified in LV from apical 2 & 4 CH views. Intra-V-delay was defined as SD of TTP and inter-V dyssynchrony was estimated from TTP difference between the most delayed LV segment & RVFW. Results All study patients showed improvement of their functional class from NYHA class III to class I and reduction of LVOT gradient to below 20 mmHg except one patient who had 30 mmHg gradients at rest. There was significant reduction of septal thickness, left atrial diameter& volume, LVOT gradient, LVMI, severity of mitral regurgitation, tricuspid annular velocities (P<0.0001), RV diameter (P<0.02) and increase in LV internal dimensions (P<0.001) post myectomy. However, there was significant reduction of RV and LV systolic mechanics; RV global εsys % (from −16.1±4.4 to −12.9±2.9, P<0.0001) and LV global εsys %: from −11.6±2.8 to −9.4±2.2%, P<0.0001) respectively. The magnitude of reduction of RV strain (Δ RV εsys%, Δ SRsys) was directly correlated LV maximal wall thickness (r=0.46, P<0.01) and ΔRV dyssynchrony (TTP-SD), (r=0.4, P<0.05) and negatively correlated to age (r=−0.46, P<0.02), pre-op RV SRsys (r=−0.52, P<0.01) and pre-op LV EF% (r=−0.43, P<0.03). Meanwhile the reduction in RV diastolic mechanics: Δ RV SRe & SRa were directly correlated to PAP and LVOT gradient before surgery (r=0.62, P<0.002). Conclusion Despite improvement of patient functional status and reduction LVOT gradient, RV mechanics shows further deterioration after surgical myectomy. The magnitude of reduction is modestly related to cardiac phenotype and pre-op mechanical function.

Sign in / Sign up

Export Citation Format

Share Document