Document Detail

Two-dimensional echocardiographic evaluation of ventricular systolic function in human fetuses with ductal constriction.
MedLine Citation:
PMID:  9383875     Owner:  NLM     Status:  MEDLINE    
Ventricular systolic function was assessed in fetuses, 18 with and 18 without constriction of the ductus arteriosus by serial two-dimensional and Doppler echocardiographic studies. Ductal constriction was defined as maximum systolic velocity of > 140 cm/s and diastolic flow velocity of > 30 cm/s. Ventricular end-diastolic and end-systolic areas were measured from a four-chamber view and area shortening fraction (SF) was calculated: area SF = (area in end-diastole--area in end-systole)/area in end-diastole. In fetuses with ductal constriction, right ventricular end-diastolic and end-systolic areas were significantly increased and right ventricular area SF decreased significantly compared with those values in fetuses without ductal constriction (186 +/- 48 vs. 150 +/- 30 mm2, 112 +/- 34 vs. 81 +/- 19 mm2 and 0.40 +/- 0.05 vs. 0.47 +/- 0.03, respectively, p < 0.01) without any significant changes in left ventricular area SF. Serial studies were available in eight ductal constriction fetuses before and during indomethacin administration, and after withdrawal of the drug for a mean of 24 h. Both systolic and diastolic ductal flow velocities in all fetuses returned to normal range after discontinuation of the drug. During ductal constriction during indomethacin therapy, right ventricular end-diastolic and end-systolic cavity areas were significantly larger and area SF was significantly less than those values before and after the therapy (179 +/- 38 vs. 157 +/- 30 and 154 +/- 27 mm2, 108 +/- 33 vs. 82 +/- 15 and 83 +/- 15 mm2 and 0.40 +/- 0.07 vs. 0.48 +/- 0.03 and 0.46 +/- 0.03, respectively, p < 0.01). This study suggests that ductal constriction influences right ventricular systolic performance.
K Harada; M J Rice; T Shiota; R W McDonald; M D Reller; D J Sahn
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology     Volume:  10     ISSN:  0960-7692     ISO Abbreviation:  Ultrasound Obstet Gynecol     Publication Date:  1997 Oct 
Date Detail:
Created Date:  1997-12-23     Completed Date:  1997-12-23     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  9108340     Medline TA:  Ultrasound Obstet Gynecol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  247-53     Citation Subset:  IM    
Oregon Health Sciences University, Portland 97201-3098, USA.
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MeSH Terms
Blood Flow Velocity
Case-Control Studies
Constriction, Pathologic / chemically induced
Ductus Arteriosus / drug effects*
Echocardiography, Doppler
Fetal Heart / physiology,  ultrasonography*
Indomethacin / therapeutic use*
Retrospective Studies
Tocolytic Agents / therapeutic use*
Ultrasonography, Prenatal*
Ventricular Function / physiology*
Reg. No./Substance:
0/Tocolytic Agents; 53-86-1/Indomethacin
Erratum In:
Ultrasound Obstet Gynecol 1998 Jan;11(1):v

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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