- Case Report
- Open Access
Apical ballooning syndrome: a case report
© Lampropoulos et al.; licensee BioMed Central Ltd. 2012
- Received: 17 July 2012
- Accepted: 17 December 2012
- Published: 27 December 2012
Apical ballooning syndrome mimics acute coronary syndromes and it is characterized by reversible left ventricular apical ballooning in the absence of angiographically significant coronary artery stenosis.
This is a case of a 40-year-old Caucasian male without any health related problems that was submitted to an urgent coronary angiography because of acute chest pain and marked precordial T-wave inversions suggestive of acute myocardial ischemia. Coronary angiography showed no significant stenosis of the coronary arteries. Left ventriculography showed systolic apical ballooning with mild basal hypercontraction.
Physicians should be aware of the presentation of apical ballooning syndrome, and the chest pain after following acute stress should not be readily attributed to anxiety.
- Apical ballooning syndrome
- Stress cardiomyopathy
- Acute coronary syndrome
Apical ballooning syndrome, also known as Takotsubo cardiomyopathy, apical ballooning cardiomyopathy, stress-induced cardiomyopathy, Gebrochenes-Herz-Syndrom, or simply stress cardiomyopathy, is a type of non-ischemic cardiomyopathy in which there is a sudden temporary weakening of the myocardium. As this weakening can be triggered by emotional stress, such as the death of a loved one, a break-up, or constant anxiety, the condition is also known as the broken heart syndrome. Stress cardiomyopathy is a well-recognized cause of acute heart failure, lethal ventricular arrhythmias, and ventricular rupture. It mimics acute coronary syndromes and is characterized by reversible left ventricular apical ballooning in the absence of angiographically significant coronary artery stenosis. Studies report that 1.7-2.2% of patients originally treated as suspected acute coronary event, were subsequently diagnosed with apical ballooning syndrome. In Japanese, “tako-tsubo” means “fishing pot for trapping octopus,” and the left ventricle of a patient diagnosed with this condition indeed resembles that shape. This is a presentation of a 40-year-old Caucasian male without a pertinent medical history that was referred for an urgent coronary angiography because of acute chest pain and marked precordial T-wave inversions suggestive of acute myocardial ischemia. Coronary angiography revealed no significant stenoses of the coronary arteries. Left ventriculography showed systolic apical ballooning with mild basal hypercontraction.
Left ventriculography showed systolic apical ballooning with mild basal hypercontraction. [Figure1D,E] Levels of creatine kinase-MB and troponin Tn(I) were mildly elevated. One month later, echocardiography showed complete resolution of the wall motion abnormality. It is of note that ten years ago, the patient experienced an episode of acute chest pain following intense emotional stress due to the unexpected death of a loved one. Regarding the presenting case, emotional stress due to occupational mishaps and subsequent unemployment had preceded the onset of symptoms.
Once the diagnosis of apical ballooning syndrome has been made, aspirin therapy was discontinued. B-Blocker therapy was continued, especially as an excess of catecholamines may play a significant role in precipitating the syndrome. Our patient remains well six months after his index admission.
The apical ballooning syndrome is an intriguing medical condition as it mimics acute coronary syndromes. Similarities in presentation can in fact mimic a classic heart attack.
Common symptoms include chest pain, shortness of breath and dyspnoea, arrhythmias or generalized fatigue. The symptoms are often preceded by an intense physical or emotional event as in our patient. Clinically, these patients tend to present similarly to the classic form. Potential triggers are news of an unexpected death of a loved one, a frightening medical diagnosis, domestic violence, financial catastrophy and severe health problems such as an asthma attack, infection, acute trauma and major surgeries. Interestingly, even benign or “pleasant” exciting events can induce the syndrome. However, a case of Takotsubo cardiomyopathy was recently reported that was triggered by watching a 3D action film, the first published association between the syndrome and visual stimulation.
Transient hypokinesis, dyskinesis, or akinesis of the left ventricular midsegments, with or without apical involvement; the regional wall-motion abnormalities extend beyond a single epicardial vascular distribution, and a stressful trigger is often, but not always, present.
Absence of obstructive coronary disease or angiographic evidence of acute plaque rupture.
New electrocardiographic abnormalities (either ST-segment elevation and/or T-wave inversion) or modest elevation in cardiac troponin level.
Absence of pheochromocytoma or myocarditis.
It is noted that cardiac markers, specifically troponin I and T, are elevated in 90% of patients with apical ballooning syndrome, although to a lesser magnitude than in ST-segment elevation myocardial infarction (STEMI). The brain natriuretic peptide level is also frequently elevated.
As with any patient in whom acute coronary syndrome is suspected, an elecrocardiogram should be the initial test to be obtained after presentation to the emergency department. ST-segment elevation (67-75%) and T-wave inversion (61%) are the most common abnormalities seen on the initial ECG. Ninety-five percent of ST- elevations have been found to involve the precordial leads and to be maximal in leads V2 -V3. When compared with patients with STEMI due to a left anterior descending (LAD) coronary artery occlusion, ST-segment elevations in patients with apical ballooning syndrome were significantly less marked. Moreover, an initially normal or nonspecific ECG finding can be found in 15% of patients with apical ballooning syndrome. Diffuse T-wave inversions tend to occur in the days and weeks following presentation as the ST- segments normalize. There is no reliable way to differentiate apical ballooning syndrome from STEMI based solely on the ECG findings[7, 8]. Still, new criteria are now emerging in an effort to differentiate these two separate conditions.
Transthoracic echocardiography provides a quick method of diagnosing wall motion abnormalities typically seen in apical ballooning syndrome, specifically hypokinesis or akinesis of the midsegment and apical segment of the left ventricle (“typical takotsubo”). Most importantly, these wall motion abnormalities extend beyond the distribution of any single coronary artery. In some cases it is possible for the hypokinesias to be restricted at the midventricular segments without involvement of the apex (“atypical takotsubo”). The left ventricular ejection fraction (LVEF) can be estimated by the echocardiogram, cardiac magnetic resonance imaging (MRI), or left ventriculography. Another diagnostic modality uniquely suited for establishing the diagnosis of apical ballooning syndrome is cardiac magnetic resonance imaging. It accurately visualises regional wall motion abnormalities, quantifies ventricular function, and identifies reversible injury to the myocardium by the presence of edema/inflammation and the absence of necrosis/fibrosis. This technology may give new insight into the pathophysiology of apical ballooning syndrome and be of potential use at acute presentations, improving recognition rates and clinical outcomes. In addition to evaluating wall-motion abnormalities and LVEF, cardiac MRI is able to differentiate apical ballooning syndrome from myocardial infarction and myocarditis based on the absence of delayed gadolinium hyperenhancement that is a hallmark of the former conditions.
Ultimately, the diagnosis of apical ballooning syndrome is confirmed at the cardiac catheterization laboratory. Normal or mildly atherosclerotic vessels are usual findings, although rarely significant obstructive coronary artery disease mat coexist by virtue of its prevalence at the population at risk. Some investigators have in fact hypothetised that apical ballooning syndrome may be a case of “aborted MI” where transient occlusions with spontaneous thrombus lysis in large left anterior descending arteries are the culprits for the characteristic wall motion abnormalities observed in the syndrome.
Patients should be treated at the emergency department as having an acute coronary event and expert Cardiology consultation should be sought promptly. ACS treatments should not be stopped unless there is solid proof of an alternative diagnosis. Addressing the airway, breathing, and circulation; establishing intravenous access, providing supplemental oxygen and initiating cardiac monitoring should take precedence. Emphasis should be given to adequate hydration and attempts to alleviate the triggering stressor, emotional or physical. Tests at the emergency department should include electrocardiography, chest radiography, cardiac biomarker levels, brain natriuretic peptide, and any other laboratory studies deemed appropriate by the attending physician.
Treatment options for Takotsubo cardiomyopathy are largely empirical and supportive; however, when hemodynamics permit, beta blockers seem to be helpful. Most experts would favour the administration of standard heart failure medications, at least in the short term to counter the ensuing systolic dysfunction. Serial imaging studies may be necessary. Patients who are found to have left ventricular thrombus, which occurs in 5% of patients with apical ballooning syndrome, require anticoagulation.
Close follow-up care with a cardiologist in the weeks after diagnosis is recommended for patients with apical ballooning syndrome to ensure resolution of the cardiomyopathy, usually with serial echocardiograms. Thereafter, annual clinical follow-up is advised, because the long-term effects and natural history of apical ballooning syndrome are unknown.
The prognosis in apical ballooning syndrome is excellent, with nearly 95% of patients experiencing complete recovery within 4–8 weeks. The recurrence rate varies but is estimated at 3%. Estimates of mortality rates have ranged from 1–3.2%.
Complications occur in 20% of apical ballooning syndrome cases and include the following: Left heart failure with or without pulmonary edema, cardiogenic shock, left ventricular outflow obstruction, mitral regurgitation, ventricular arrhythmias, left ventricular mural thrombus formation or free-wall rupture.
Physicians should be aware of the apical ballooning syndrome, and chest pain following a recent stressor should not readily be attributed to anxiety. It is also important to bear in mind that patients with apical ballooning syndrome do not usually have cardiac risk factors, but still their chest pain should be taken seriously. Also, patients may present to the emergency department after a natural disaster, and health care providers should be aware of apical ballooning syndrome.
Written informed consent was obtained from the patient for publication of this manuscript and accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal.
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