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Year : 2009  |  Volume : 19  |  Issue : 1  |  Page : 84-86
Prenatal diagnosis of left ventricular aneurysm

Department of Ultrasonography, Balku's Scan, PVS Hospital, Calicut -673 002, Kerala, India

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Fetal cardiac anomalies involving the ventricular and atrial septa, outflow tracts, chambers, and valves are often encountered in routine screening. However, the prenatal detection of a fetal left ventricular aneurysm is rare. This report describes the case of a left ventricular aneurysm that was diagnosed at 24 weeks of gestation; the diagnosis was later confirmed by postnatal echocardiography. This case is reported because of its rarity and the characteristic echocardiographic findings. An early specific antenatal USG diagnosis helps in prognostication and in counseling of the parents.

Keywords: Congenital cardiac defects; fetal echocardiography; fetal left ventricular aneurysm; prenatal ultrasonography

How to cite this article:
Balakumar K. Prenatal diagnosis of left ventricular aneurysm. Indian J Radiol Imaging 2009;19:84-6

How to cite this URL:
Balakumar K. Prenatal diagnosis of left ventricular aneurysm. Indian J Radiol Imaging [serial online] 2009 [cited 2021 Jan 18];19:84-6. Available from:

   Introduction Top

We would like to report the case of a left ventricular aneurysm diagnosed at 24 weeks of gestation. The diagnosis was eventually confirmed on postnatal echocardiography.

   Case Report Top

An asymptomatic young (26-year-old) primigravida was referred to us at 24 weeks of gestation for a routine antenatal USG. Her personal and family histories were noncontributory. She gave no history of exposure to any teratogen or of a recent infection. The USG showed a normal placenta, normal volume of liquor, and normal biometry corresponding to 24 weeks' gestation. The cardiac four-chamber view was abnormal because of the presence of a dilated left ventricle with a 'boot-shaped' appearance [Figure 1]. We carried out a detailed fetal echocardiographic examination. The cardiac situs was normal, with a near-normal axis and moderate cardiomegaly. The disproportionately dilated left ventricle had an abnormal shape because of a pouch-like extension towards the left and posterior aspect. The thin wall of this sac-like projection was continuous with the left ventricular wall [Figure 2]. The dyskinetic left ventricle communicated with the pouch through a wide mouth. Color flow imaging showed abnormal low-velocity turbulent flow in this pouch and no demonstrable contraction during systole [Figure 3]. These features were diagnostic of a left ventricular aneurysm. There was severe mitral and tricuspid incompetence in this fetus. The outflow tracts, septa, ductus arteriosus, and descending aorta were all normal.

   Discussion Top

With the advent of sophisticated machines and software, fetal echocardiography has become a very useful investigation. The detection rates of cardiac anomalies are increasing, as also the specificity of the diagnoses. [1] In one recent report, the overall prevalence of cardiac anomalies at birth was 7.8/1000, inclusive of still births, live births and termination of pregnancy due to congenital heart disease. [2] Ventricular aneurysm is a recent addition to the list of diseases that can be diagnosed before birth; the first case was reported in 1990 [3] and approximately 20 cases have been reported till 2005. [4] The reported incidence is 0.5 per 100,000 live births. Classically, the USG diagnosis of a ventricular aneurysm is made based on the presence of a wide-mouthed ventricular outpouching along with the presence of paradoxical systolic expansion, though this may not always be seen. The aneurysm may arise from the ventricular septum, the wall, or the apical region. This fetus showed no other intra- or extracardiac anomaly; other anomalies are only rarely associated with such aneurysms. [5]

A ventricular diverticulum has to be differentiated from an aneurysm. A diverticulum is usually a small finger-like, synchronously contracting, narrow projection, which shows the same thickness and layering as the rest of the myocardium. [6] Fetuses with an isolated diverticulum have a good prognosis if the associated complications are treated. [7],[8] Sometimes they have midline anomalies as in pentalogy of Cantrell. Ebstein's anomaly, cardiomyopathy, outflow tract obstruction, and substantial atrioventricular regurgitation may all be confused with a right ventricular diverticulum. [9] The differential diagnosis of ventricular aneurysm also includes post-ischemic aneurysm. Other lesions that can occur in the vicinity, such as intrathoracic cystic anomalies (e.g., intrathoracic lung cysts), diaphragmatic hernia, absent right sided pericardium, Uhl's anomaly, and right ventricular dysplasia, should also be considered in the differential diagnoses.

The prognosis of a fetal left ventricular aneurysm depends on the time of detection, the size and the progression of the aneurysm, the presence or absence of compression of the fetal lungs, involvement of the mitral opening, reversal of atrial shunt, associated cardiac failure, and the presence of myocardial damage or connective tissue disorders. [5],[10],[11]

This fetus was delivered by a Cesarian section for purely obstetric indications, and the postnatal detailed echocardiography confirmed the antenatal diagnosis.

   References Top

1.Russo MG, Paladini D, Pacileo G, Ricci C, Di Salvo G, Felicetti M, et al . Changing spectrum and outcome of 705 fetal congenital heart disease cases: 12 years, experience in a third-level center. J Cardiovasc Med (Haqerstown) 2008;9:910-5.  Back to cited text no. 1    
2.Chew C, Halliday JL, Riley MM, Penny DJ. Population-based study of antenatal detection of congenital heart disease by ultrasound examination. Ultrasound Obstet Gynecol 2007;29:619-24.   Back to cited text no. 2  [PUBMED]  [FULLTEXT]
3.Gembruch U, Steil E, Redel DA, Hansmann M. Prenatal diagnosis of a left ventricular aneurysm. Prenat Diagn 1990;10:203-9.  Back to cited text no. 3  [PUBMED]  
4.El Kady D, Gerscovich EO, Moon-Grady A, Towner D, McGahan JP, Rhee-Morris L, et al . Congenital cardiac left ventricular aneurysm with pericardial effusion: Early prenatal diagnosis and intervention. J Ultrasound Med 2005;24:1011-5.  Back to cited text no. 4  [PUBMED]  [FULLTEXT]
5.Chaubal N, Dighe M, Shah M, Chaubal J, Raghavan J. Congenital left ventricular aneurysm: Prenatal sonographic diagnosis. J Ultrasound Med 2004;23:125-8.  Back to cited text no. 5  [PUBMED]  [FULLTEXT]
6.Wax JR, Moran A, Pinette MG, Reyes A, Cartin A, Blackstone J. Prenatal sonographic diagnosis of fetal right ventricular diverticulum. J Ultrasound Med 2007;26:267-70.  Back to cited text no. 6  [PUBMED]  [FULLTEXT]
7.Del Rio M, Martinez JM, Bennasar M, Palacio M, Figueras F, Puerto B, et al . Prenatal diagnosis of a right ventricular diverticulum complicated by pericardial effusion in the first trimester. Ultrasound Obstet Gynecol 2005;25:409-11.  Back to cited text no. 7    
8.McAuliffe FM, Hornberger LK, Johnson J, Chitayat D, Ryan G. Cardiac diverticulum with pericardial effusion: Report of two cases treated by in-utero pericardiocentesis and a review of the literature. Ultrasound Obstet Gynecol 2005;25:401-4.   Back to cited text no. 8  [PUBMED]  [FULLTEXT]
9.Hornberger LK, Dalvi B, Benacerraf B. Prenatal sonographic detection of cardiac aneurysms and diverticula. J Ultrasound Med 1994;13:967-70.  Back to cited text no. 9    
10.Matias A, Fredouille C, Nesmann C, Azancot A. Prenatal diagnosis of left ventricular aneurysm: A report of three cases and a review. Cardiol Young 1999;9:123-6.  Back to cited text no. 10    
11.Pipitone S, Sperandeo V, Mongiovi M, Roberto G, Centineo G. Prenatal diagnosis of ventricular aneurysm: A report of two cases and a review. Prenat Diagn 2002;22:131-6.   Back to cited text no. 11  [PUBMED]  [FULLTEXT]

Correspondence Address:
K Balakumar
Balku's Scan, PVS Hospital, Calicut, Kerala-673 002
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0971-3026.45353

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