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    "textoCompleto" => "<span class="elsevierStyleSections"><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle">Introduction</span><p id="par0005" class="elsevierStylePara elsevierViewall">Takotsubo cardiomyopathy &#40;TC&#41;&#44; or transient left ventricular apical ballooning syndrome&#44; was first recognized in Japan in 1991&#46;<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> It is characterized by self-limited left ventricular mid and apical akinesia&#44; usually precipitated by profound physical or emotional trauma&#46;<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1&#8211;4</span></a> The natural history of TC appears to be benign&#44; requiring supportive therapy until the ventricular dysfunction has resolved&#44;<a class="elsevierStyleCrossRefs" href="#bib0010"><span class="elsevierStyleSup">2&#44;4</span></a> but occasionally it has been identified as a precipitant of serious arrhythmias&#46;<a class="elsevierStyleCrossRefs" href="#bib0010"><span class="elsevierStyleSup">2&#44;6&#8211;8</span></a> Ventricular dyskinesia combined with increased sympathetic activation which alters the coagulation cascade may explain the apical thrombus formation sporadically reported in these patients&#46;<a class="elsevierStyleCrossRef" href="#bib0025"><span class="elsevierStyleSup">5</span></a> We present a case of TC associated with apical thrombus and complete heart block&#46; To our knowledge this is the first report of an association of these two complications simultaneously in the same patient&#46;</p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle">Case report</span><p id="par0010" class="elsevierStylePara elsevierViewall">A 78-year-old woman with unremarkable cardiac and medical history was admitted to our hospital because of dyspnea&#44; chest discomfort and dizziness lasting for a week&#44; since she had been physically assaulted by her husband&#46; On physical examination&#44; she was hemodynamically stable and rales were detected in both lungs&#46; The ECG showed complete heart block with wide QRS complexes &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Figure 1</a>&#41;&#46;</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><p id="par0015" class="elsevierStylePara elsevierViewall">A transthoracic echocardiogram revealed severe left ventricular &#40;LV&#41; systolic dysfunction with akinesia of the mid-apical segments and hyperkinesis of the basal segments&#46; Assuming a possible previous infarction with post-infarction angina and severe conduction abnormalities&#44; cardiac catheterization was performed and temporary transvenous pacing was instituted&#46; The coronary angiography excluded significant coronary vascular disease&#58; 40&#37; stenosis of the mild left anterior descending artery &#40;LAD&#41; and 50&#37; of the distal circumflex coronary artery &#40;<a class="elsevierStyleCrossRef" href="#fig0010">Figure 2</a>&#41;&#46; The left ventriculography demonstrated typical &#8220;apical ballooning&#8221; and an apical thrombus &#40;<a class="elsevierStyleCrossRef" href="#fig0010">Figure 2</a>&#44; <a class="elsevierStyleCrossRef" href="#sec0030">video 1</a>&#41;&#46; Contrast echocardiography confirmed the presence of apical thrombus and hypocoagulation therapy was initiated &#40;<a class="elsevierStyleCrossRef" href="#fig0015">Figure 3</a>&#41;&#46;</p><elsevierMultimedia ident="fig0010"></elsevierMultimedia><elsevierMultimedia ident="fig0015"></elsevierMultimedia><p id="par0020" class="elsevierStylePara elsevierViewall">The patient&#39;s clinical evolution was favorable&#44; however the LV dysfunction&#44; wall motion abnormalities and AV conduction abnormalities did not improve significantly during the week after admission&#46; Troponin level was maximum at admission &#40;0&#46;79<span class="elsevierStyleHsp" style=""></span>ng&#47;ml&#41;&#46; Due to the lack of LV function improvement a temporary coronary occlusion could not be ruled out as the cause of apical ballooning&#46; To better clarify the diagnosis cardiac magnetic resonance imaging was performed&#44; almost two weeks after admission&#44; and showed global &#40;ejection fraction&#58; 50&#37;&#41; and regional &#40;hypokinesis of the 17th segment&#44; lateral and inferior apical segments&#41; improvement of LV function&#46; There was no apical thrombus or delayed enhancement&#44; consistent with the diagnosis of TC &#40;<a class="elsevierStyleCrossRef" href="#fig0020">Figure 4</a>&#41;&#46;</p><elsevierMultimedia ident="fig0020"></elsevierMultimedia><p id="par0025" class="elsevierStylePara elsevierViewall">The echocardiography performed at this time confirmed the resolution of LV systolic function and wall-motion abnormalities&#46; However&#44; the complete AV block persisted and&#44; consequently&#44; a dual-chamber pacemaker was implanted &#40;<a class="elsevierStyleCrossRef" href="#fig0025">Figure 5</a>&#41;&#46; Pacemaker check at one year identified persistent complete heart block but the patient was asymptomatic&#46;</p><elsevierMultimedia ident="fig0025"></elsevierMultimedia></span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle">Discussion</span><p id="par0030" class="elsevierStylePara elsevierViewall">This case demonstrates that complete AV block associated with takotsubo cardiomyopathy may persist after improvement of left ventricular wall motion&#44; and pacemaker implantation may be needed&#46;</p><p id="par0035" class="elsevierStylePara elsevierViewall">The physiopathology of TC remains unclear&#44; as does the involvement of the conduction system&#46; It is still not known if in these cases the conduction system is primarily involved or if it suffers the consequence of an acutely distorted cardiac structure&#46; It seems that the remodeling of the ventricle after the acute TC phase recovers within weeks&#44; while the conduction system may take years to recover&#46;<a class="elsevierStyleCrossRefs" href="#bib0030"><span class="elsevierStyleSup">6&#8211;8</span></a> Further follow-up of this patient will help determine whether the conduction disorder is permanent or will resolve over time&#46;</p></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle">Authorship</span><p id="par0055" class="elsevierStylePara elsevierViewall">Ana Sofia Correia and Nuno Moreno contributed equally to the paper&#46;</p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle">Conflicts of interest</span><p id="par0040" class="elsevierStylePara elsevierViewall">The authors have no conflicts of interest to declare&#46;</p></span></span>"
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Case report
Cardiac thrombus and conduction disorder in takotsubo cardiomyopathy
Miocardiopatia de takotsubo complicada com trombo apical e alterações da condução
Ana Sofia Correiaa,
Corresponding author
sofiakorreia@gmail.com

Corresponding author.
, Nuno Morenob, Alexandra Gonçalvesa, Vítor Araújoa, Teresa Pinhoa, Rui André Rodriguesa, Filipe Macedoa, Maria Júlia Maciela
a Serviço de Cardiologia, Hospital de São João, E.P.E., Porto, Portugal
b Serviço de Cardiologia, Hospital Padre Américo, Vale do Sousa (Centro Hospitalar Tâmega e Sousa, E.P.E.), Penafiel, Portugal
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        "titulo" => "Miocardiopatia de takotsubo complicada com trombo apical e altera&#231;&#245;es da condu&#231;&#227;o"
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          "en" => "<p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Results of cardiac catheterization&#46; Left ventriculography at end-systole &#40;A&#41; and end-diastole &#40;B&#41; demonstrating typical apical ballooning and double outline apex suggestive of apical thrombus&#46; Results of selective coronary angiography of the left main coronary artery &#40;C&#41; showing no significant stenosis&#46;</p>"
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    "textoCompleto" => "<span class="elsevierStyleSections"><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle">Introduction</span><p id="par0005" class="elsevierStylePara elsevierViewall">Takotsubo cardiomyopathy &#40;TC&#41;&#44; or transient left ventricular apical ballooning syndrome&#44; was first recognized in Japan in 1991&#46;<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> It is characterized by self-limited left ventricular mid and apical akinesia&#44; usually precipitated by profound physical or emotional trauma&#46;<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1&#8211;4</span></a> The natural history of TC appears to be benign&#44; requiring supportive therapy until the ventricular dysfunction has resolved&#44;<a class="elsevierStyleCrossRefs" href="#bib0010"><span class="elsevierStyleSup">2&#44;4</span></a> but occasionally it has been identified as a precipitant of serious arrhythmias&#46;<a class="elsevierStyleCrossRefs" href="#bib0010"><span class="elsevierStyleSup">2&#44;6&#8211;8</span></a> Ventricular dyskinesia combined with increased sympathetic activation which alters the coagulation cascade may explain the apical thrombus formation sporadically reported in these patients&#46;<a class="elsevierStyleCrossRef" href="#bib0025"><span class="elsevierStyleSup">5</span></a> We present a case of TC associated with apical thrombus and complete heart block&#46; To our knowledge this is the first report of an association of these two complications simultaneously in the same patient&#46;</p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle">Case report</span><p id="par0010" class="elsevierStylePara elsevierViewall">A 78-year-old woman with unremarkable cardiac and medical history was admitted to our hospital because of dyspnea&#44; chest discomfort and dizziness lasting for a week&#44; since she had been physically assaulted by her husband&#46; On physical examination&#44; she was hemodynamically stable and rales were detected in both lungs&#46; The ECG showed complete heart block with wide QRS complexes &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Figure 1</a>&#41;&#46;</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><p id="par0015" class="elsevierStylePara elsevierViewall">A transthoracic echocardiogram revealed severe left ventricular &#40;LV&#41; systolic dysfunction with akinesia of the mid-apical segments and hyperkinesis of the basal segments&#46; Assuming a possible previous infarction with post-infarction angina and severe conduction abnormalities&#44; cardiac catheterization was performed and temporary transvenous pacing was instituted&#46; The coronary angiography excluded significant coronary vascular disease&#58; 40&#37; stenosis of the mild left anterior descending artery &#40;LAD&#41; and 50&#37; of the distal circumflex coronary artery &#40;<a class="elsevierStyleCrossRef" href="#fig0010">Figure 2</a>&#41;&#46; The left ventriculography demonstrated typical &#8220;apical ballooning&#8221; and an apical thrombus &#40;<a class="elsevierStyleCrossRef" href="#fig0010">Figure 2</a>&#44; <a class="elsevierStyleCrossRef" href="#sec0030">video 1</a>&#41;&#46; Contrast echocardiography confirmed the presence of apical thrombus and hypocoagulation therapy was initiated &#40;<a class="elsevierStyleCrossRef" href="#fig0015">Figure 3</a>&#41;&#46;</p><elsevierMultimedia ident="fig0010"></elsevierMultimedia><elsevierMultimedia ident="fig0015"></elsevierMultimedia><p id="par0020" class="elsevierStylePara elsevierViewall">The patient&#39;s clinical evolution was favorable&#44; however the LV dysfunction&#44; wall motion abnormalities and AV conduction abnormalities did not improve significantly during the week after admission&#46; Troponin level was maximum at admission &#40;0&#46;79<span class="elsevierStyleHsp" style=""></span>ng&#47;ml&#41;&#46; Due to the lack of LV function improvement a temporary coronary occlusion could not be ruled out as the cause of apical ballooning&#46; To better clarify the diagnosis cardiac magnetic resonance imaging was performed&#44; almost two weeks after admission&#44; and showed global &#40;ejection fraction&#58; 50&#37;&#41; and regional &#40;hypokinesis of the 17th segment&#44; lateral and inferior apical segments&#41; improvement of LV function&#46; There was no apical thrombus or delayed enhancement&#44; consistent with the diagnosis of TC &#40;<a class="elsevierStyleCrossRef" href="#fig0020">Figure 4</a>&#41;&#46;</p><elsevierMultimedia ident="fig0020"></elsevierMultimedia><p id="par0025" class="elsevierStylePara elsevierViewall">The echocardiography performed at this time confirmed the resolution of LV systolic function and wall-motion abnormalities&#46; However&#44; the complete AV block persisted and&#44; consequently&#44; a dual-chamber pacemaker was implanted &#40;<a class="elsevierStyleCrossRef" href="#fig0025">Figure 5</a>&#41;&#46; Pacemaker check at one year identified persistent complete heart block but the patient was asymptomatic&#46;</p><elsevierMultimedia ident="fig0025"></elsevierMultimedia></span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle">Discussion</span><p id="par0030" class="elsevierStylePara elsevierViewall">This case demonstrates that complete AV block associated with takotsubo cardiomyopathy may persist after improvement of left ventricular wall motion&#44; and pacemaker implantation may be needed&#46;</p><p id="par0035" class="elsevierStylePara elsevierViewall">The physiopathology of TC remains unclear&#44; as does the involvement of the conduction system&#46; It is still not known if in these cases the conduction system is primarily involved or if it suffers the consequence of an acutely distorted cardiac structure&#46; It seems that the remodeling of the ventricle after the acute TC phase recovers within weeks&#44; while the conduction system may take years to recover&#46;<a class="elsevierStyleCrossRefs" href="#bib0030"><span class="elsevierStyleSup">6&#8211;8</span></a> Further follow-up of this patient will help determine whether the conduction disorder is permanent or will resolve over time&#46;</p></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle">Authorship</span><p id="par0055" class="elsevierStylePara elsevierViewall">Ana Sofia Correia and Nuno Moreno contributed equally to the paper&#46;</p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle">Conflicts of interest</span><p id="par0040" class="elsevierStylePara elsevierViewall">The authors have no conflicts of interest to declare&#46;</p></span></span>"
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ISSN: 21742049
Original language: English
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