A ventricular aneurysm develops either as a congenital or acquired malformation, but it is most frequently described as a complication of acute myocardial infarction. The clinical presentation can be asymptomatic, while chest pain, dyspnea, bradycardia, and a pericardial friction rub are some of the observed symptoms. A thorough clinical assessment with electrocardiography (ECG) can raise sufficient evidence to employ imaging studies (ventriculography, echocardiography, or magnetic resonance imaging). The latter is the cornerstone for determining the type (true vs pseudoaneurysm) and its size.
Presentation
Signs and symptoms of a ventricular aneurysm are closely related to the clinical presentation of an acute myocardial infarction (AMI) [1] [2]. In fact, up to 95% of all ventricular aneurysms are thought to occur in this patient population [3]. Other etiologies associated with this cardiac pathology are trauma, surgical interventions involving the heart, and infections, whereas their appearance as isolated congenital lesions has also been noted [3] [4] [5] [6] [7]. Despite the different types of aneurysms based on the degree of rupture (a true aneurysm involves the full thickness of the myocardium, while pseudoaneurysms are contained by the pericardial sac), patients present in a similar fashion [1] [2]. Interestingly, a large number of patients are asymptomatic and smaller aneurysms, in general, do not pose a significant risk to the patient [1] [2]. In approximately 60% of patients who are symptomatic, however, typical chest pain seen in MI may be reported, as well as dyspnea and hypotension accompanied by bradycardia [2] [6]. A pericardial friction rub is also observed, together with heart murmurs and an overall decrease in the intensity of heart sounds [2]. Unfortunately, symptomatic patients usually progress to heart failure and are at risk for aneurysmal rupture (which can be life-threatening), development of arrhythmias and insufficiency of the coronary arteries, thrombosis, bacterial endocarditis, and even death [6]. For this reason, an early diagnosis is crucial.
Entire Body System
-
Congestive Heart Failure
heart failure Arrhythmias Peripheral embolization Usually are either true or false aneurysms True ventricular aneurysms Localized outpouching of ventricular cavity Associated with dyskinesia Wide-mouthed in connection with the LV Anterolateral or apical [learningradiology.com]
Post-infarction LV-remodelling can be characterised by chamber dilatation and abnormal shape leading to systolic and diastolic dysfunction and, in the advanced form, to congestive heart failure. [cardiothoracicsurgery.org]
Complications of ventricular aneurysm such as chronic congestive heart failure and rupture of the aneurysm were infrequent causes of death, and systemic embolic phenomena were not observed as a cause of death. [ahajournals.org]
-
Large Pericardial Effusion
We report a case of left ventricular aneurysm with a large pericardial effusion diagnosed at 17 weeks' gestation but retrospectively recognized on imaging at 15 weeks 6 days. [ucdavis.pure.elsevier.com]
However, depending on their location and association with other anomalies, diverticula may trigger heart failure, arrhythmia, rupture, large pericardial effusion, and hydrops fetalis 1,2,5,6. [scielo.br]
Figure 1 Two dimensional fetal echocardiography showed large thin-walled left ventricular aneurysm, 24 21 18 mm, originated from left ventricular free wall with large pericardial effusion and compressed the ipsi-lateral lung. [nature.com]
Liver, Gall & Pancreas
-
Hepatosplenomegaly
She had neither hepatosplenomegaly nor pretibial edema. Her peripheral pulses were normal, and she had no focal neurologic deficits. Her blood urea nitrogen was 29 mg/dl, and serum creatinine was 0.9 mg/dl. [ctsnet.org]
Cardiovascular
-
Tachycardia
Finally, after 9 days of persistent ventricular tachycardia, resection of the aneurysm was carried out with excellent eventual recovery and correction of ventricular tachycardia. [annals.org]
On Holter ECG monitoring frequent PVC (26,333 beats/day; 24.7% of the total heart rate) and non-sustained ventricular tachycardia (NSVT) were noted ( Figure 1B ). [jstage.jst.go.jp]
The patient's ventricular tachycardia (VT) was refractory to different treatments. Due to the presence of a ventricular thrombus, epicardial ablation was performed but the VT recurred. [ncbi.nlm.nih.gov]
CLINICAL CASE A 49-year-old woman without a family history of heart disease with a background of paroxysmal supraventricular tachycardias for 17 years. [revespcardiol.org]
Tachycardia is another finding. Cardiovascular Common findings in patients with LV aneurysm include: [1] Palpation Diffuse, sustained apical systolic thrust and a double impulse. Displaced apical impulse to the left of the mid clavicular line. [wikidoc.org]
-
Heart Disease
Rheumatic heart disease should be considered in HIV positive patients from endemic areas who have evidence of heart disease. [mjdrdypu.org]
Pathogenesis of chronic Chagas heart disease. Circulation 2007;115:1109-23. 8. Bonney KM, Engman DM. Chagas heart disease pathogenesis: One mechanism or many? Curr Mol Med 2008;8:510-8. 9. Rossi MA. [heartviews.org]
Braunwald's heart disease : a textbook of cardiovascular medicine. Philadelphia, PA: Elsevier/Saunders. ISBN 978-1455751341 . [wikidoc.org]
From how ‘broken heart syndrome’ can also be triggered by happy events, to how cardiologists are now using 3D printing to personalise treatment for heart disease. [eurheartj.oxfordjournals.org]
Stable ischemic heart disease. In: Mann DL, Zipes DP, Libby P, Bonow RO, editors. Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine. 10th ed. Philadelphia: Elsevier; 2015. pp. 1182–244. [ Google Scholar ] 8. [ncbi.nlm.nih.gov]
-
Diminished Heart Sounds
A personal history that reveals MI or recent surgery of the heart may be a useful piece of information, whereas auscultation of the heart (during which murmurs, bradycardia, and/or diminished heart sounds are revealed) might reveal crucial findings to [symptoma.com]
Psychiatrical
-
Impulsivity
Cardiovascular Common findings in patients with LV aneurysm include: [1] Palpation Diffuse, sustained apical systolic thrust and a double impulse. Displaced apical impulse to the left of the mid clavicular line. [wikidoc.org]
Three months later, he presented with fatigue, a displaced point of maximal impulse, a holosystolic murmur, and a visually pulsatile abdomen above the umbilicus. [doi.org]
Diagnosis A number of signs may indicate ventricular aneurysm, including an abnormal precordial impulse in the heartbeat, persistent elevation of the S-T segment of an electrocardiogram, and a characteristic bulge seen on the heart when x rayed. [medical-dictionary.thefreedictionary.com]
During the surgery we performed epicardial EPhS with overdriving stimulation of 200 impulses a minute; VT was induced. [intechopen.com]
Workup
Imaging studies are necessary to make the diagnosis of a ventricular aneurysm. Still, the physician plays a key role in raising clinical suspicion toward a cardiac origin of signs and symptoms. A detailed patient history should cover the onset of symptoms and their progression. A personal history that reveals MI or recent surgery of the heart may be a useful piece of information [1], whereas auscultation of the heart (during which murmurs, bradycardia, and/or diminished heart sounds are revealed) might reveal crucial findings to make the initial diagnosis. As soon as sufficient evidence is raised, electrocardiography should be performed, but because a distinction between a true aneurysm and a pseudoaneurysm can't be made during this procedure (the importance lies in the somewhat different prognosis and treatment), direct imaging of the heart is necessary [1]. Cardiac ultrasonography (echocardiography) is a useful and noninvasive first-line study that provides very fast results but its ability to visualize an entire aneurysm and determine the exact physical characteristics is inferior, compared to computed tomography (CT) or magnetic resonance imaging (MRI) [1] [2] [4] [8]. Contrast-enhanced MRI is even more superior, as it allows for a complete evaluation of the myocardium and, thus, is able to differentiate a true aneurysm from a pseudoaneurysm [1].
X-Ray
-
Mediastinal Mass
Most likely vascular in origin, however mediastinal masses could not be ruled out. Case Report Figure 2: Organised thrombus removed from aneurysmal sac. A 63-year-old female presented with a large inferior myocardial infarction. [ctsnet.org]
QRS Wave
-
Inferior Q Wave
His clinical history was characterized by a silent inferior-basal myocardial infarction detected by a control ECG that presented inferior Q waves, and he had not previously presented symptoms. [cardiothoracicsurgery.org]
QT, RR, ST Intervals
-
ST Elevation
[…] by, last update March 16, 2019 Left Ventricular Aneurysm Overview Persistent ST elevation following an acute myocardial infarction. [litfl.com]
[…] by, last update November 25, 2018 Left Ventricular Aneurysm Overview Persistent ST elevation following an acute myocardial infarction. [lifeinthefastlane.com]
The only way to be sure that the ECG changes present are from an LV aneurysm (not ST elevation from an acute MI) is to have the patient’s history of a prior MI and cardiac imaging to document the presence of an aneurysm. [healio.com]
Normal Right Bundle Branch Block (figure 2) This is normal RBBB, with rSR’, slight ST depression in V2 and V3, and no ST elevation anywhere. A non-pathologic RBBB has an rSR’ in V1-V3 and no ST elevation anywhere on the ECG. [hqmeded-ecg.blogspot.com]
T Wave
-
T Wave Inversion
ECG Examples Example 1 Anterior Left Ventricular Aneurysm: Minimal ST elevation in V1-3 associated with deep Q waves and T-wave inversion. This is a LV aneurysm secondary to a prior anteroseptal STEMI. [litfl.com]
Other Pathologies
-
Lymphocytic Infiltrate
Histologically, CD3-positive T lymphocytic infiltration accompanied by pronounced macrophage infiltration was observed in the myocardium. Hemorrhagic necrosis was detected in the area of the ventricular aneurysm. [ncbi.nlm.nih.gov]
Treatment
Surgery is the definitive treatment. However, it is not currently available in the country and patients cannot afford treatment abroad. [ncbi.nlm.nih.gov]
Some people live with this type of aneurysm for many years without any specific treatment. Treatment is limited to surgery (ventricular reduction) for this defect of the heart. [en.wikipedia.org]
[…] and minimally invasive treatments. [bumc.bu.edu]
Prognosis
The etiology is unknown, and there is a variable prognosis in the current literature. Approximately 20 cases detected by prenatal ultrasonography have been reported, with 4 of these cases indicating the presence of pericardial fluid. [ucdavis.pure.elsevier.com]
While patients with MINOCA usually do not need coronary artery intervention treatments, the prognosis could be worsened if the condition is not appropriately managed. [ncbi.nlm.nih.gov]
As soon as sufficient evidence is raised, electrocardiography should be performed, but because a distinction between a true aneurysm and a pseudoaneurysm can't be made during this procedure (the importance lies in the somewhat different prognosis and [symptoma.com]
In our case, LVA/LV ratio was 1 throughout the pregnancy that suggested poor prognosis ( Figure 2a ). With the relative enlargement of aneurysm, we expected poor prognosis of this fetus. [nature.com]
It is suggested that the hemodynamic significance of ventricular aneurysms is not ordinarily great, in view of the unaffected statistical prognosis in its presence. [ahajournals.org]
Etiology
/etiology; ventricular function, left/drug effects/physiology [ncbi.nlm.nih.gov]
The etiology is unknown, and there is a variable prognosis in the current literature. Approximately 20 cases detected by prenatal ultrasonography have been reported, with 4 of these cases indicating the presence of pericardial fluid. [ucdavis.pure.elsevier.com]
Other etiologies associated with this cardiac pathology are trauma, surgical interventions involving the heart, and infections, whereas their appearance as isolated congenital lesions has also been noted. [symptoma.com]
DISCUSSION Congenital VA is a rare clinical entity (0.4% of 750 cardiac necropsies) 4 that is diagnosed once other more common etiologies have been ruled out. [revespcardiol.org]
Pathophysiology
[…] of authors favor defining left ventricular aneurysm more loosely as any large area of left ventricular akinesia or dyskinesia that reduces left ventricular ejection fraction. 3–5 This broader definition has been justified by data suggesting that the pathophysiology [accesssurgery.mhmedical.com]
The underlying pathophysiological processes are little understood; however, it is hypothesized that they result from a localized weakening of the ventricular wall due to an interruption in the development during embryogenesis, infection, or ischemia 2,3 [scielo.br]
Congenital left ventricular aneurysms and diverticula: definition, pathophysiology, clinical relevance and treatment. Cardiology 2006; 106 : 63–72. 3. Weichert J, Chiriac A, Axt-Fliedner R. [nature.com]
Left ventricular aneurysms: pathophysiologic observations and standard resection. Sem Thorac Cardiovasc Surg 1997;9:113-22. 9. Grieco JG, Montoya A, Sullivan HJ, et al. Ventricular aneurysm due to blunt chest injury. [tmj.ro]
Optimal physiologic management may differ among all the existing pathophysiologies, making the anesthetic management challenging. Intraoperative transesophageal echocardiography (TEE) is essential for several reasons. [clinicalpainadvisor.com]
Prevention
How can a ventricular aneurysm be prevented? Some aneurysms may be prevented if a heart attack is treated very soon after it starts. Developed by RelayHealth. Published by RelayHealth. [summitmedicalgroup.com]
The patient also received an implantable cardioverter-defibrillator for primary prevention. [doi.org]
[…] these complications, 7,8 although some groups defend a conservative attitude in asymptomatic patients and employ measures aimed at preventing endocarditis and embolism via oral antiplatelet or anticoagulation agents. 3 In our case, despite involving [revespcardiol.org]
Also ACE Inhibitors seem to prevent Left Ventricular remodeling and aneurysm formation. [en.wikipedia.org]
References
- Kumbasar B, Wu KC, Kamel IR, Lima JA, Bluemke DA. Left ventricular true aneurysm: diagnosis of myocardial viability shown on MR imaging. AJR Am J Roentgenol. 2002;179(2):472-474.
- Bisoyi S, Dash AK, Nayak D, Sahoo S, Mohapatra R. Left ventricular pseudoaneurysm versus aneurysm a diagnosis dilemma. Ann Card Anaesth. 2016;19(1):169-172.
- Alhasnawi M. Calcified Ventricular Aneurysm. Oman Med J. 2009;24(4):303-305.
- Giacobbe L, Williams P, Ramin K, Sivanandam S. Fetal Diagnosis of Left Ventricular Aneurysm: A Case Report. AJP Rep. 2011;1(2):91-94.
- Del Río M, Martínez J M, Bennasar M., et al. Prenatal diagnosis of a right ventricular diverticulum complicated by pericardial effusion in the first trimester. Ultrasound Obstet Gynecol. 2005;25:409–411.
- Ercan A, Senkaya I, Semizel E, Cil E. Left Ventricular Aneurysm in a 4-Year-Old Boy.Tex Heart Inst J. 2005;32(4):614-615.
- Gerlis LM, Partridge JB, Fiddler GI, Williams G, Scott O. Two chambered left ventricle: three new varieties. Br Heart J. 1981;46:278–284.
- Balakumar K. Prenatal diagnosis of left ventricular aneurysm. Indian J Radiol Imaging. 2009;19(1):84-86.