Pseudoaneurysm of the left ventricle after myocardial infarction: a case report

    Authors

    Keywords

    pseudoaneurysm, myocardial infarction, echocardiography

    DOI

    https://doi.org/10.15836/ccar2017.122

    Full Text

    **Case report**: 66-year-old man with a history of mental disorder, presented with acute pulmonary edema and pneumonia. ECG indicated signs of previous anterior wall myocardial infarction. Based on patient history we concluded that it had occured approximately one month before he was admitted. Echocardiography identified mildly dilated left ventricle with moderately reduced ejection fraction with anterior wall akinesia (**Figure 1**). Apical akinetic segments were filled with thrombus. In accordance with the existing guidelines, we introduced three months of anticoagulation therapy with warfarin. Follow up echocardiography showed large apical pseudo aneurysm (probably in the inferoapical segment) partially filled with thrombus (**Figure 2**). With contrast echocardiography (SonoVue) we tried to identify the site of entry into the pseudoaneurysm. However, we could not confirm clear communication. The patient was offered immediate hospital admission for additional MRI diagnosis and operative treatment, but the patient refused all further diagnostic and surgical procedures. The patient is treated with heart failure drugs. Anticoagulation treatment was stopped due to the size of the pseudoaneurysm. Figure 1. Echocardiography at the time of first admission: thrombus in the left ventricle. Figure 2. Control echocardiography: pseudoaneurysm with thrombus. **Conclusion**: Cardiac pseudoaneurysm are rare but clinically significant lesions. (1-3) Although often challenging to diagnose, advances in non-invasive imaging (echocardiography, MRI, CT) have improved our ability to distinguish cardiac pseudoaneurysms from other pathologies. Most pseudoaneurysms, particularly if acute or associated with symptoms, require surgical repair or percutaneous exclusion to reduce the risk of rupture and potential for thromboembolism. In patients who have a high risk for surgical (or percutaneous) intervention, particularly when a pseudoaneurysm is chronic in nature, conservative management may be prudent. In our patient, a pseudoaneurysm was detected 6 months after myocardial infarction, which is not usual. We assume that the thrombus in the apex temporary closed the initial rupture of the left ventricle. Introduced anticoagulation therapy may have been an additional factor in the aneurysm development, because it probably contributed to thrombus dissolution.

    Literature

    1. Brown SL, Gropler RJ, Harris KM. Distinguishing left ventricular aneurysm from pseudoaneurysm. A review of the literature. Chest. 1997 May;111(5):1403–9. https://doi.org/10.1378/chest.111.5.1403
    2. Negi P, Bhardwaj R, Asotra S, Mahajan K Inferior wall STEMI presenting with a ruptured intraseptal pseudoaneurysm. BMJ Case Rep. 2016 Mar 9;2016:pii: bcr2016214744. https://pubmed.ncbi.nlm.nih.gov/26961728/
    3. Hulten EA, Blankstein R. Pseudoaneurysms of the heart. Circulation. 2012 Apr 17;125(15):1920–5. https://doi.org/10.1161/CIRCULATIONAHA.111.043984
    Cardiologia Croatica
    Back to search

    Pseudoaneurysm of the left ventricle after myocardial infarction: a case report

    Extended Abstract
    Issue4
    Published
    Pages122
    PDF via DOIhttps://doi.org/10.15836/ccar2017.122
    pseudoaneurysm
    myocardial infarction
    echocardiography

    Authors

    Ljupka Dimitrovska*ORCIDUniversity Medical Centre Ljubljana, Ljubljana, Slovenia
    Urška Dolores Breskvar KačORCIDUniversity Medical Centre Ljubljana, Ljubljana, Slovenia
    Jana AmbrožičORCIDUniversity Medical Centre Ljubljana, Ljubljana, Slovenia
    Mojca BervarORCIDUniversity Medical Centre Ljubljana, Ljubljana, Slovenia

    *Correspondence email: ljupkadim@gmail.com

    Full Text

    Case report: 66-year-old man with a history of mental disorder, presented with acute pulmonary edema and pneumonia. ECG indicated signs of previous anterior wall myocardial infarction. Based on patient history we concluded that it had occured approximately one month before he was admitted. Echocardiography identified mildly dilated left ventricle with moderately reduced ejection fraction with anterior wall akinesia (Figure 1). Apical akinetic segments were filled with thrombus. In accordance with the existing guidelines, we introduced three months of anticoagulation therapy with warfarin. Follow up echocardiography showed large apical pseudo aneurysm (probably in the inferoapical segment) partially filled with thrombus (Figure 2). With contrast echocardiography (SonoVue) we tried to identify the site of entry into the pseudoaneurysm. However, we could not confirm clear communication. The patient was offered immediate hospital admission for additional MRI diagnosis and operative treatment, but the patient refused all further diagnostic and surgical procedures. The patient is treated with heart failure drugs. Anticoagulation treatment was stopped due to the size of the pseudoaneurysm.

    Figure 1. Echocardiography at the time of first admission: thrombus in the left ventricle.

    Figure 2. Control echocardiography: pseudoaneurysm with thrombus.

    Conclusion: Cardiac pseudoaneurysm are rare but clinically significant lesions. (1–3) Although often challenging to diagnose, advances in non-invasive imaging (echocardiography, MRI, CT) have improved our ability to distinguish cardiac pseudoaneurysms from other pathologies. Most pseudoaneurysms, particularly if acute or associated with symptoms, require surgical repair or percutaneous exclusion to reduce the risk of rupture and potential for thromboembolism. In patients who have a high risk for surgical (or percutaneous) intervention, particularly when a pseudoaneurysm is chronic in nature, conservative management may be prudent. In our patient, a pseudoaneurysm was detected 6 months after myocardial infarction, which is not usual. We assume that the thrombus in the apex temporary closed the initial rupture of the left ventricle. Introduced anticoagulation therapy may have been an additional factor in the aneurysm development, because it probably contributed to thrombus dissolution.

    Literature

    1. 1.
      Brown SL, Gropler RJ, Harris KM. Distinguishing left ventricular aneurysm from pseudoaneurysm. A review of the literature. Chest. 1997 May;111(5):1403–9.DOI
    2. 2.
      Negi P, Bhardwaj R, Asotra S, Mahajan K Inferior wall STEMI presenting with a ruptured intraseptal pseudoaneurysm. BMJ Case Rep. 2016 Mar 9;2016:pii: bcr2016214744.PubMed
    3. 3.
      Hulten EA, Blankstein R. Pseudoaneurysms of the heart. Circulation. 2012 Apr 17;125(15):1920–5.DOI