Journal of cardiovascular ultrasound最新文献

{"title":"Recurrent Acute Myocardial Infarction Caused by Intra-cardiac Metastatic Undifferentiated Pleomorphic Sarcoma during Cancer Treatment.","authors":"Sungsoo Cho, Na-Hye Myong, Tae Soo Kang","doi":"10.4250/jcu.2018.26.1.40","DOIUrl":"https://doi.org/10.4250/jcu.2018.26.1.40","url":null,"abstract":"A 54-year-old male visited the emergency room for sudden chest pain. In his previous medical history, he had been diagnosed as left axillary undifferentiated pleomorphic sarcoma two years ago without metastasis in the heart at our hospital (Fig. 1A). Despite surgery, multiple sessions of chemotherapy and radiation therapy, the cancer had proliferated. One year after diagnosis, he had started taking pembrolizumab to target the metastasis of sarcoma. After initiation of pembrolizumab, the patient was hospitalized for sudden cardiac arrest due to acute myocardial infarction (AMI) induced by metastatic sarcoma embolus and an angioplasty had been performed at another hospital a year ago. We performed direct percutaneous coronary intervention due to ST segment elevation myocardial infarction, anterior wall and found the total occlusion of the distal left anterior descending artery (Fig. 1B). We utilized a thromboaspirate suction catheter to suction the area multiple times and obtained mucoid white tissue debris (Fig. 1C). In the final coronary angiography, the coronary flow had been completely restored (Fig. 1D). In his echocardiography six months ago, a huge mass with heterogeneous echogenicity was located in the left atrium and attached to the interatrial septum with a prolapse into the left ventricle (Fig. 2A, Supplementary Movie 1). However, the mass had significantly decreased in size on new echocardiography (Fig. 2B, Supplementary Movie 2). We compared the cytologic and immunohistochemical findings of primary axillary sarcoma with the acquired intracoronary embolus tissue. The embolus tissues were composed of discohesive round sarcoma cells and scattered pleomorphic giant cells, pISSN 1975-4612 / eISSN 2005-9655 Copyright © 2018 Korean Society of Echocardiography www.kse-jcu.org https://doi.org/10.4250/jcu.2018.26.1.40","PeriodicalId":88913,"journal":{"name":"Journal of cardiovascular ultrasound","volume":"26 1","pages":"40-42"},"PeriodicalIF":0.0,"publicationDate":"2018-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4250/jcu.2018.26.1.40","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35985991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of a Geometric Correction for Proximal Flow Constraint on the Assessment of Mitral Regurgitation Severity Using the Proximal Flow Convergence Method.","authors":"Jeong Yoon Jang,&nbsp;Joon-Won Kang,&nbsp;Dong Hyun Yang,&nbsp;Sahmin Lee,&nbsp;Byung Joo Sun,&nbsp;Dae-Hee Kim,&nbsp;Jong-Min Song,&nbsp;Duk-Hyun Kang,&nbsp;Jae-Kwan Song","doi":"10.4250/jcu.2018.26.1.33","DOIUrl":"https://doi.org/10.4250/jcu.2018.26.1.33","url":null,"abstract":"<p><strong>Background: </strong>Overestimation of the severity of mitral regurgitation (MR) by the proximal isovelocity surface area (PISA) method has been reported. We sought to test whether angle correction (AC) of the constrained flow field is helpful to eliminate overestimation in patients with eccentric MR.</p><p><strong>Methods: </strong>In a total of 33 patients with MR due to prolapse or flail mitral valve, both echocardiography and cardiac magnetic resonance image (CMR) were performed to calculate regurgitant volume (RV). In addition to RV by conventional PISA (RV_PISA), convergence angle (α) was measured from 2-dimensional Doppler color flow maps and RV was corrected by multiplying by α/180 (RV_AC). RV measured by CMR (RV_CMR) was used as a gold standard, which was calculated by the difference between total stroke volume measured by planimetry of the short axis slices and aortic stroke volume by phase-contrast image.</p><p><strong>Results: </strong>The correlation between RV_CMR and RV by echocardiography was modest [RV_CMR vs. RV_PISA (r = 0.712, <i>p</i> < 0.001) and RV_CMR vs. RV_AC (r = 0.766, <i>p</i> < 0.001)]. However, RV_PISA showed significant overestimation (RV_PISA - RV_CMR = 50.6 ± 40.6 mL vs. RV_AC - RV_CMR = 7.7 ± 23.4 mL, <i>p</i> < 0.001). The overall accuracy of RV_PISA for diagnosis of severe MR, defined as RV ≥ 60 mL, was 57.6% (19/33), whereas it increased to 84.8% (28/33) by using RV_AC (<i>p</i> = 0.028).</p><p><strong>Conclusion: </strong>Conventional PISA method tends to provide falsely large RV in patients with eccentric MR and a simple geometric AC of the proximal constraint flow largely eliminates overestimation.</p>","PeriodicalId":88913,"journal":{"name":"Journal of cardiovascular ultrasound","volume":"26 1","pages":"33-39"},"PeriodicalIF":0.0,"publicationDate":"2018-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4250/jcu.2018.26.1.33","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35985990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Long Term Outcomes of Left Atrial Reservoir Function in Children with a History of Kawasaki Disease.","authors":"Soo Jung Kang,&nbsp;Jihyun Ha,&nbsp;Seo Jung Hwang,&nbsp;Hyo Jin Kim","doi":"10.4250/jcu.2018.26.1.26","DOIUrl":"https://doi.org/10.4250/jcu.2018.26.1.26","url":null,"abstract":"<p><strong>Background: </strong>Decreased left atrial (LA) reservoir function is reported to be associated with elevated left ventricular (LV) end diastolic pressure and LV diastolic dysfunction. Echocardiographic parameters that reflect LA reservoir function include LA total emptying fraction [(maximum LA volume - minimum LA volume) / maximum LA volume], peak LA longitudinal strain (PLALS) at systole, and LA stiffness index (E/E´/PLALS). We aimed to investigate the long-term outcomes of LV diastolic function in children with a history of Kawasaki disease (KD) (KDHx group) by assessing LA reservoir function.</p><p><strong>Methods: </strong>Retrospectively, echocardiograms performed at a mean follow-up period of 5 years after the acute phase of KD in 24 children in the KDHx group were compared to those from 20 normal control subjects. LA total emptying fraction, PLALS, LA stiffness index, LV peak longitudinal systolic strain (ε), and strain rate (SR) were evaluated with conventional echocardiographic parameters.</p><p><strong>Results: </strong>The mean age at long term follow-up echocardiography in children in the KDHx group was 6.8 years. Five children (20.8%) had coronary artery lesions (CALs) in the acute stage of KD. No children showed CALs at a mean follow-up period of 5 years after the acute phase of KD. There were no significant differences in the conventional echocardiographic parameters and in LA total emptying fraction, PLALS, LA stiffness index, LV peak longitudinal systolic ε, and SR, between the children in the KDHx and control group.</p><p><strong>Conclusion: </strong>LV diastolic function assessed by LA reservoir function parameters at long-term follow-up in children in the KDHx group appears to be favorable.</p>","PeriodicalId":88913,"journal":{"name":"Journal of cardiovascular ultrasound","volume":"26 1","pages":"26-32"},"PeriodicalIF":0.0,"publicationDate":"2018-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4250/jcu.2018.26.1.26","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35985988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Rare Case of Left Ventricular Noncompaction in LEOPARD Syndrome.","authors":"Kyehwan Kim,&nbsp;Min Gyu Kang,&nbsp;Hyun Woong Park,&nbsp;Jin-Sin Koh,&nbsp;Jeong Rang Park,&nbsp;Seok-Jae Hwang,&nbsp;Jin-Yong Hwang","doi":"10.4250/jcu.2018.26.1.43","DOIUrl":"https://doi.org/10.4250/jcu.2018.26.1.43","url":null,"abstract":"A 40-year-old man presented with palpitation for 2 days. His past medical history was unremarkable. Physical examination revealed that multiple lentigines of 5 mm to 15 mm that were black-brown in color, macule, flat, and scattered on the face, neck, trunk, and on both hands (Fig. 1A). Hypertelorism was found but there were no evidences of deafness, genital anomaly, and other dysmorphic features including face. His electrocardiography (ECG) indicated atrial fibrillation, left ventricular hypertrophy with a strain pattern (Fig. 1B). Transthoracic echocardiography and cardiac magnetic resonance imaging revealed left ventricular noncompaction (Fig. 1D, E, and F, Supplementary Movies 1, 2, and 3). Skin biopsy had no evidences of malignancies (Fig. 1C). In addition, other disease with hyper-pigmented skin lesions including Addison’s disease, hemochromatosis, and hyperthyroidism, were excluded. A p.Typ279Cys mutation in the Exon 7 of the PTPN 11 gene on Chromosome 12q24.1 was verified by polymerase chain reaction sequencing with a total of 15 exons. Finally, he was diagnosed as LEOPARD syndrome (LS) according to criteria proposed by Voron et al. LS is an autosomal dominant congenital disorder. The prevalence and incidence of LS are unclear. “LEOPARD” is an umbrella term for seven characteristic features: lentigines, electrocardiographic abnormalities, ocular hypertelorism, pulmonary valve stenosis, abnormalities of the genitals, retarded growth, and deafness. Voron et al. proposed diagnostic criteria for LS that include 1 major criterion of multiple lentigines, at least 2 minor criteria (cardiac, ECG, genitourinary, endocrine, neurologic, cephalofacial or skeletal abnormalities), or 3 minor criteria. Hypertrophic cardiomyopathy, abnormal ECG, and pulmonary stenosis were common findings in LS. Interestingly, in pISSN 1975-4612 / eISSN 2005-9655 Copyright © 2018 Korean Society of Echocardiography www.kse-jcu.org https://doi.org/10.4250/jcu.2018.26.1.43","PeriodicalId":88913,"journal":{"name":"Journal of cardiovascular ultrasound","volume":"26 1","pages":"43-44"},"PeriodicalIF":0.0,"publicationDate":"2018-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4250/jcu.2018.26.1.43","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35985992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diagnosis, Treatment, and Prevention of Cardiovascular Toxicity Related to Anti-Cancer Treatment in Clinical Practice: An Opinion Paper from the Working Group on Cardio-Oncology of the Korean Society of Echocardiography.","authors":"Hyungseop Kim, Woo-Baek Chung, Kyoung Im Cho, Bong-Joon Kim, Jeong-Sook Seo, Seong-Mi Park, Hak Jin Kim, Ju-Hee Lee, Eun Kyoung Kim, Ho-Joong Youn","doi":"10.4250/jcu.2018.26.1.1","DOIUrl":"10.4250/jcu.2018.26.1.1","url":null,"abstract":"<p><p>Cardiovascular (CV) toxicity associated with anti-cancer treatment is commonly encountered and raises critical problems that often result in serious morbidity or mortality. Most cardiac toxicities are related to the cumulative dose of chemotherapy; however, the type of chemotherapy, concomitant agents, and/or conventional CV risk factors have been frequently implicated in CV toxicity. Approximately half of the patients exhibiting CV toxicity receive an anthracycline-based regimen. Therefore, serologic biomarkers or cardiac imagings are important during anti-cancer treatment for early detection and the decision of appropriate management of cardiotoxicity. However, given the difficulty in determining a causal relationship, a multidisciplinary collaborative approach between cardiologists and oncologists is required. In this review, we summarize the CV toxicity and focus on the role of cardiac imaging in management strategies for cardiotoxicity associated with anti-cancer treatment.</p>","PeriodicalId":88913,"journal":{"name":"Journal of cardiovascular ultrasound","volume":"26 1","pages":"1-25"},"PeriodicalIF":0.0,"publicationDate":"2018-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/d2/81/jcu-26-1.PMC5881080.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35985989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Horseshoe-like Shaped Atrial Septal Defects Confirmed on Three-Dimensional Transesophageal Echocardiography.","authors":"Jin-Sun Park,&nbsp;Joon-Han Shin","doi":"10.4250/jcu.2017.25.4.138","DOIUrl":"https://doi.org/10.4250/jcu.2017.25.4.138","url":null,"abstract":"A 51-year-old female with exertional dyspnea was admitted. Transthoracic echocardiography (TTE) revealed 2 defects at interatrial septum with left to right shunt (Fig. 1A). En face display of the interatrial septum by three-dimensional (3D) TTE demonstrated two ovoid atrial septal defects (ASDs). Two ovoid defects and interatrial septum formed like horseshoe (Fig. 1B). Transesophageal echocardiography (TEE) revealed total three oval shaped ASDs, which were well-visualized in one view, using 3D volume rendering of the interatrial septum from real-time 3D data (Fig. 2A). This finding was consistent with an intraoperative image (Fig. 2B). 3D TEE has a distinct advantage over two-dimensional (2D) echocardiography in case of complex ASD, especially when 2 or more defects are present. 3D echocardiography can provide pISSN 1975-4612 / eISSN 2005-9655 Copyright © 2017 Korean Society of Echocardiography www.kse-jcu.org https://doi.org/10.4250/jcu.2017.25.4.138","PeriodicalId":88913,"journal":{"name":"Journal of cardiovascular ultrasound","volume":"25 4","pages":"138-139"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4250/jcu.2017.25.4.138","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35736694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clinical Utility of Echocardiography for Early and Late Pulmonary Hypertension in Preterm Infants: Relation with Bronchopulmonary Dysplasia.","authors":"Yo Han Seo,&nbsp;Hee Joung Choi","doi":"10.4250/jcu.2017.25.4.124","DOIUrl":"https://doi.org/10.4250/jcu.2017.25.4.124","url":null,"abstract":"<p><strong>Background: </strong>We evaluated early and late pulmonary hypertension (PH) in preterm infants and its relation with bronchopulmonary dysplasia (BPD).</p><p><strong>Methods: </strong>Sixty-seven preterm infants < 30 weeks' gestation underwent echocardiography within 14 days after birth for early PH and over 28 days after birth for late PH. We measured tricuspid regurgitation (TR) peak velocity, pulse Doppler-derived myocardial performance index (MPI) of right ventricle (RV) (RV MPI), eccentricity index (EI), and tricuspid annular plane systolic excursion (TAPSE).</p><p><strong>Results: </strong>The median gestation age of patients was 27 weeks (range, 23-30 weeks) and median birth weight was 1030 g (range, 450-1780 g). TR peak velocity was measured only in 19 patients (28.4%). Patients with symptomatic early PH (n = 11) showed a significantly lower systolic EI and a significantly higher incidence of RV MPI > 0.38 and TAPSE < 0.5 cm than patients without PH. The incidence of symptomatic early PH was highest in severe BPD, although this was not statistically significant. Early echocardiographic parameters are not associated with BPD development. Patients with severe BPD showed a significantly higher RV MPI and a significantly higher incidence of RV MPI > 0.38 than patients with mild BPD, and a significantly lower systolic EI and a significantly higher incidence of systolic EI < 0.81 than patients without BPD.</p><p><strong>Conclusion: </strong>Systolic EI, RV MPI, and TAPSE were well represented symptomatic early PH, while systolic EI and RV MPI could be useful parameters for identifying late PH in preterm infants with BPD, even if they did not present PH symptoms.</p>","PeriodicalId":88913,"journal":{"name":"Journal of cardiovascular ultrasound","volume":"25 4","pages":"124-130"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4250/jcu.2017.25.4.124","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35736692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Outcomes of Left Ventricular Function According to Treatment Response for a Patent Ductus Arteriosus in Preterm Infants.","authors":"Soo Jung Kang,&nbsp;Young Sun Cho,&nbsp;Seo Jung Hwang,&nbsp;Hyo Jin Kim","doi":"10.4250/jcu.2017.25.4.131","DOIUrl":"https://doi.org/10.4250/jcu.2017.25.4.131","url":null,"abstract":"<p><strong>Background: </strong>To evaluate the outcomes of left ventricular (LV) function according to treatment response for a hemodynamically significant patent ductus arteriosus (hsPDA) in preterm infants.</p><p><strong>Methods: </strong>Echocardiograms of 21 preterm infants born at gestational age < 31 weeks obtained at term-equivalent age were retrospectively studied. Among preterm infants with a hsPDA, 9 underwent ligation after failure of pharmacological closure (ligation group) and 6 experienced successful pharmacological closure (medication group). Six preterm infants without hsPDA (no-hsPDA group) were studied as controls. LV peak longitudinal systolic strain (ε) of each infant was retrospectively obtained from echocardiograms using velocity vector imaging, along with neonatal outcomes.</p><p><strong>Results: </strong>Pharmacological closures were attempted at postnatal day 2-3. In the ligation group, the median postnatal age at ligation was 20 days. In the ligation group, LV peak longitudinal systolic ε was significantly decreased at term-equivalent age compared to the other groups. Between the medication and no-hsPDA groups, LV peak longitudinal systolic ε did not differ significantly. Among the neonatal outcomes, infants who experienced necrotizing enterocolitis (NEC) showed significantly decreased LV peak longitudinal systolic ε compared to the infants who did not experience NEC .</p><p><strong>Conclusion: </strong>We speculate that in preterm infants with an hsPDA, in cases of medical treatment failure, early PDA ligation at less than 20 days of postnatal age would be beneficial for preserving LV systolic function.</p>","PeriodicalId":88913,"journal":{"name":"Journal of cardiovascular ultrasound","volume":"25 4","pages":"131-137"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4250/jcu.2017.25.4.131","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35736693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of Mindfulness Based Stress Reduction Therapy on Myocardial Function and Endothelial Dysfunction in Female Patients with Microvascular Angina.","authors":"Bong Joon Kim,&nbsp;In Suk Cho,&nbsp;Kyoung Im Cho","doi":"10.4250/jcu.2017.25.4.118","DOIUrl":"https://doi.org/10.4250/jcu.2017.25.4.118","url":null,"abstract":"<p><strong>Background: </strong>Mindfulness-based stress reduction (MBSR) is a structured group program that employs mindfulness meditation to alleviate suffering associated with physical, psychosomatic, and psychiatric disorders. In this study, we investigate the impact of MBSR on left ventricular (LV) and endothelial function in female patients with microvascular angina.</p><p><strong>Methods: </strong>A total of 34 female patients (mean age 52.2 ± 13.8 years) diagnosed with microvascular angina underwent a MBSR program with anti-anginal medication for 8 weeks. The global longitudinal strain (GLS) of the LV was used as a parameter to assess myocardial function and reactive brachial flow-mediated dilatation (FMD) was used to assess endothelial function. Symptoms were analyzed by the Symptom Checklist 90 Revised to determine emotional stress. Changes in GLS and FMD between baseline and post-MBSR were analyzed.</p><p><strong>Results: </strong>After 8 weeks of programmed MBSR treatment, stress parameters were significantly decreased. In addition, GLS (-19.5 ± 2.1% vs. -16.6 ± 2.5%, <i>p</i> < 0.001) and reactive FMD significantly improved (8.9 ± 3.0% vs. 6.9 ± 2.6%, <i>p</i> = 0.005) after MBSR compared to baseline. The changes in GLS correlated to changes in FMD (r = 0.120, <i>p</i> = 0.340) and with the changes in most stress parameters.</p><p><strong>Conclusion: </strong>MBSR has beneficial impacts on myocardial and endothelial function in female patients with microvascular angina.</p>","PeriodicalId":88913,"journal":{"name":"Journal of cardiovascular ultrasound","volume":"25 4","pages":"118-123"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4250/jcu.2017.25.4.118","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35736784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Congenital Left Atrial Bands with Atrial Fibrillation.","authors":"Won Young Jang,&nbsp;Woohyeun Kim,&nbsp;Eun Jin Park,&nbsp;Jah Yeon Choi,&nbsp;Cheol Ung Choi,&nbsp;Hong Euy Lim,&nbsp;Jin Won Kim,&nbsp;Eung Ju Kim,&nbsp;Seung-Woon Rha,&nbsp;Jin Oh Na","doi":"10.4250/jcu.2017.25.4.140","DOIUrl":"https://doi.org/10.4250/jcu.2017.25.4.140","url":null,"abstract":"Congenital left atrial band (CLAB) is a fibromuscular band observed in the left atrium and observed in 2% of necropsy. However, the clinical significance has not yet clearly identified and clinically diagnosed cases are very rare. Histopatholgic study showed that the anomalous bands were composed of fibrous and muscular tissues without Purkinje cells. The fibromuscular bands of the left ventricle or right atrium have been reported to be associated with specific types of tachycardia. CLAB has also been reported to raise the incidence of supraventricular arrhythmia. A 76-year-old man with persistent atrial fibrillation was admitted to the hospital for elective electric cardioversion. He had a history of type 2 diabetes and dyslipidemia without other underlying diseases. His transthoracic echocardiogram was unremarkable and transesophageal echocardiography (TEE) was performed for screening intracardiac thrombus before electric cardioversion. In TEE, non-mobile linear structures attached from the interatrial septum in the left atrium were observed (Fig. 1A and B) and there was no flow limitation or acceleration in the color Doppler study (Fig. 1C, Movie 1). There were no significant valvular abnormalities of all cardiac valves. Because flow acceleration in the Doppler study was not observed and three-dimensional imaging study shows a bandlike linear structure rather than a membrane, we considered this linear structure as CLAB. Electric cardioversion successfully converted atrial fibrillation to normal sinus rhythm without complication. There is a case report of two patients with CLAB and cryptogenic stroke suggesting that CLAB could be considered a popISSN 1975-4612 / eISSN 2005-9655 Copyright © 2017 Korean Society of Echocardiography www.kse-jcu.org https://doi.org/10.4250/jcu.2017.25.4.140","PeriodicalId":88913,"journal":{"name":"Journal of cardiovascular ultrasound","volume":"25 4","pages":"140-141"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4250/jcu.2017.25.4.140","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35736695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}