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https://www.readbyqxmd.com/read/28803684/role-of-two-dimensional-speckle-tracking-echocardiography-strain-in-the-assessment-of%C3%A2-right-ventricular-systolic-function-and-comparison-with-conventional-parameters
#1
REVIEW
Luca Longobardo, Valentin Suma, Renuka Jain, Scipione Carerj, Concetta Zito, Dianne L Zwicke, Bijoy K Khandheria
Despite the already well-known role the right side of the heart plays in many diseases, right ventricular (RV) function has only recently been carefully considered. Echocardiography is the first-line diagnostic technique for the assessment of the right ventricle and right atrium, whereas cardiac magnetic resonance is considered the gold standard but is limited by cost and availability. According to the current guidelines, systolic RV function should be assessed by several conventional measurements, but the efficacy of these parameters as diagnostic and prognostic tools has been questioned by many authors...
August 10, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28801324/mechanical-thrombectomy-for-repeated-cerebral-tumor-embolism-from-a-thoracic-sarcomatoid-carcinoma
#2
Raoul Pop, Dan Mihoc, Monica Manisor, Johann Sebastian Richter, Veronique Lindner, Ralf Janssen-Langenstein, Mihaela Simu, Valerie Wolff, Remy Beaujeux
Cerebral embolism originating from intracardiac tumors represents a rare cause of stroke and has been documented in both adult and pediatric populations. We present a patient recently diagnosed with a right pulmonary hilum tumor, invading the pulmonary veins and the left atrium. Two consecutive episodes of large cerebral vessel occlusion in separate vascular territories occurred in the same day and were treated by mechanical thrombectomy. Embolic material retrieved on both occasions contained tumor fragments with peripheral endothelialization...
August 11, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28800669/fetal-cardiac-myxomas
#3
Shi-Min Yuan
Fetal cardiac myxomas are very rare. To date there has been no representative description of fetal cardiac myxomas. The aim of this study is to highlight the clinical features, possible outcomes and the disparities from the adult cardiac myxomas and other fetal cardiac tumors.A comprehensive literature review yielded 27 reports including 32 cases of fetal cardiac myxomas.Apart from the same pedunculated and solitary nature and echogenic appearance, fetal cardiac myxomas differ from those in adults in many aspects, including tumor location, clinical manifestation and malignant potential...
August 2017: Zeitschrift Für Geburtshilfe und Neonatologie
https://www.readbyqxmd.com/read/28797681/extranodal-rosai-dorfman-disease-arising-in-the-heart-clinical-course-and-review-of-literature
#4
Amin Heidarian, Ayesha Anwar, M A Haseeb, Raavi Gupta
Rosai-Dorfman disease (RDD), also known as sinus histiocytosis with massive lymphadenopathy, is a nonmalignant disease of unknown etiology. It may present as bilateral, massive, painless cervical lymphadenopathy; however, one third of the cases have extranodal involvement. Extranodal sites include soft tissue, skin, upper respiratory and gastrointestinal tracts, and central nervous system, with head and neck being the most common. Here we report a rare case of intracardiac RDD in a 46-year-old, African-American female who presented with worsening shortness of breath and fatigue for 7 weeks...
July 4, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28797677/emergence-of-atrioventricular-nodal-reentry-tachycardia-after-surgical-or-catheter-ablation-for-atrial-fibrillation-are-we-creating-the-arrhythmia-substrate
#5
Jorge Romero, Saurabh Kumar, Fujii Akira, David F Briceño, Usha B Tedrow, Laurence Epstein, Roy John, William G Stevenson, Gregory F Michaud
BACKGROUND: Atrioventricular nodal reentry tachycardia (AVNRT) is common in adults and often involves reentry through two or more AV nodal-atrial connections. Although AVNRT can be a trigger for atrial fibrillation (AF), we have observed new onset AVNRT after AF ablation procedures. OBJECTIVE: To determine whether ablation involving the septum or proximal coronary sinus during AF ablation may create a substrate favorable for AVNRT METHODS: Cases of ablation for persistent AF who required a repeat ablation procedure between 2009 to 2016 were reviewed for diagnosis of AVNRT...
August 7, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28794293/association-of-pulmonary-hypertension-with-inflammation-and-fluid-overload-in-hemodialysis-patients
#6
Hugo Hyung Bok Yoo, Roberto Dos Reis, Wagner Moneda Telini, Lidiane Rodrigues Telini, João Carlos Hueb, Silmeia Garcia Zanati Bazan, Pasqual Barretti, Luis Cuadrado Martin, Thais Thomaz Queluz
INTRODUCTION: Pulmonary hypertension (PH) has been reported in hemodialysis patients, but data regarding its pathogenesis are scarce. This study aimed to evaluate the role of fluid overload in PH and its interrelationships with the usual biomarkers of micro-inflammatory state in hemodialysis patients. MATERIALS AND METHODS: In is a cross-sectional and prospective study, 119 consecutive hemodialysis patients at a Brazilian referral university hospital were evaluated between March 2007 and February 2013...
July 2017: Iranian Journal of Kidney Diseases
https://www.readbyqxmd.com/read/28791857/antiarrhythmic-properties-of-atrial-pacing
#7
REVIEW
Magdalena Kliś, Agnieszka Sławuta, Jacek Gajek
Bradycardia, atrial stretch and dilatation, autonomic nervous system disorders, and the presence of triggers such as atrial premature contractions, are factors which predispose a person to paroxysmal AF. Atrial pacing not only eliminates bradycardia but also prevents atrial premature contractions and dispersion of refractoriness, which are a substrate for atrial fibrillation. As the prolonged duration of atrial activation during pacing, especially from locations changing the physiological pattern of this activation (right atrium lateral wall, right atrium appendage), negatively influences both a mechanical and an electrical function of the atria, the atrial pacing site affects an atrial arrhythmogenesis...
March 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28790928/enhanced-right-chamber-remodeling-in-endurance-ultra-trail-athletes-compared-to-marathon-runners-detected-by-standard-and-speckle-tracking-echocardiography
#8
Kristian Ujka, Luca Bastiani, Gennaro D'Angelo, Bruna Catuzzo, Alessandro Tonacci, Simona Mrakic-Sposta, Alessandra Vezzoli, Guido Giardini, Lorenza Pratali
Background: Strenuous and endurance exercise training have been associated with morphological and functional heart remodeling. Two-dimensional speckle-tracking echocardiography (STE) is a novel technique that allows an accurate quantification of global myocardium deformation. Our aim was to evaluate together left and right cardiac remodeling in different long-distance running athletes: marathon runners (42 km) (M) and endurance mountain runners (>300 Km) (UT). Methods: A total of 92 athletes (70 males, 76%) including 47 M [age 45 ± 7 years; training: 18 (9-53) years(*)days/week], 45 UT [age 42 ± 9, training: 30 (15-66) years(*)days/week] underwent conventional echocardiography and STE (Beyond Diogenes 2...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28790104/first-in-man-analysis-of-the-relationship-between-electrical-rotors-from-noninvasive-panoramic-mapping-and-atrial-fibrosis-from-magnetic-resonance-imaging-in-patients-with-persistent-atrial-fibrillation
#9
Christian Sohns, Christine Lemes, Andreas Metzner, Thomas Fink, Mikhail Chmelevsky, Tilman Maurer, Margarita Budanova, Vladislav Solntsev, Walther H W Schulze, Wieland Staab, Shibu Mathew, Christian Heeger, Bruno Reißmann, Eugene Kholmovski, Dietmar Kivelitz, Feifan Ouyang, Karl-Heinz Kuck
BACKGROUND: Late gadolinium enhancement (LGE) cardiovascular magnetic resonance (CMR) imaging can be used to evaluate characteristics of atrial fibrosis. The novel noninvasive epicardial and endocardial electrophysiology system (NEEES) allows for the identification of sources with rotor activity. This study describes a new technique to examine the relationship between rotors and LGE signal intensity in patients with persistent atrial fibrillation (PERS) scheduled for ablation. METHODS AND RESULTS: Ten consecutive patients underwent pulmonary vein isolation for persistent atrial fibrillation...
August 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28790049/cor-triatriatum-and-stroke
#10
Jose Danilo Bengzon Diestro, Joseph Justin Hipolito Regaldo, Eddieson Masangcay Gonzales, Maria Kristina Casanova Dorotan, Adrian Isidro Espiritu, Jose Leonard Rivera Pascual
Cor triatriatum sinistrum (CTS) is a congenital anomaly where the left atrium is divided into two compartments by a fibromuscular membrane. This report aims to add to the literature on a rare cardiac condition that can cause neurological morbidity. We report a case of a 19-year-old female with an infarct in the right middle cerebral artery (MCA) territory initially maintained on aspirin. Eighteen months later, she had recurrence of weakness, for which repeat transthoracic echocardiography (TTE) and re-evaluation of the first TTE demonstrated a hyperechoic membrane spanning the width of the left atrium, clinching the diagnosis of CTS...
August 8, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28781863/cryoballoon-ablation-with-left-lateral-decubitus-position-in-atrial-fibrillation-patient-where-the-left-atrium-was-compressed-by-the-vertebra
#11
Yosuke Nakatani, Yoshiaki Yamaguchi, Tamotsu Sakamoto, Koichiro Kinugawa
Catheter ablation of atrial fibrillation is difficult when the left atrium is compressed by the vertebra. The heart may shift forward, and compression of the left atrium may be relieved in the left lateral decubitus position. Therefore, catheter ablation could be performed in the left lateral decubitus position even in such cases.
August 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28780600/the-anti-influenza-drug-oseltamivir-reduces-atrial-fibrillation-in-an-experimental-whole-heart-model
#12
Gerrit Frommeyer, André Mittelstedt, Julian Wolfes, Christian Ellermann, Simon Kochhäuser, Patrick Leitz, Dirk G Dechering, Lars Eckardt
Recent experimental studies suggested direct effects of the anti-influenza drug oseltamivir on cardiac electrophysiology. We therefore aimed at analyzing potential antiarrhythmic effects of oseltamivir on atrial fibrillation (AF) in an experimental whole-heart model. Twelve rabbit hearts were isolated and Langendorff perfused. Thereafter, hearts were paced at cycle lengths of 350, 250, and 200 ms in the atrium. A standardized protocol employing atrial burst pacing induced AF in 4 of 12 hearts under baseline conditions (33%, 11 episodes)...
August 6, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28777397/thrombosis-of-the-superior-vena-cava-due-to-a-hickman-catheter-successful-management-by-rt-pa-thrombolysis
#13
Giuseppe Zaccone, Paolo D Pafundi, Augusto Veneziani, Alessandro Verbo, Rosa Colli
INTRODUCTION: Venous thrombosis is a frequent complication of long-term venous access. Its management is well defined in most cases, but some specific clinical situations have not yet been definitively standardized.Thrombosis may occur at the catheter tip and involve the superior vena cava (SVC) and/or the right atrium (RA). In such cases, while the need for a rapid intervention to relieve the venous obstruction and avoid embolism is obvious, the best management is still to be established...
July 29, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28776353/autotransplantation-of-the-heart-for-recurrent-inflammatory-myofibroblastic-tumor
#14
Hyun Oh Park, Jun Ho Yang, Sung Hwan Kim, Seong Ho Moon, Joung Hun Byun, Jun Young Choi, Chung Eun Lee, Jung Wook Yang, Jong Woo Kim
We report a rare case of dyspnea caused by a cardiac tumor in a 53-year-old woman. The patient had undergone a cardiac tumor (inflammatory myofibroblastic tumor, 6.2 × 4.2 × 3.3 cm) resection at our institute 13 months earlier. We performed preoperative evaluations which revealed a cardiac tumor originating from the posterior wall of the left atrium. Cardiac autotransplantation surgery (cardiac explantation, ex vivo tumor resection, cardiac reconstruction, and cardiac reimplantation) was successfully performed for the complete resection of the recurrent tumor without major postoperative complications...
September 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28774222/transradial-delivery-of-a-renal-snorkel-during-complex-endovascular-aortic-aneurysm-repair
#15
Jordan R Stern, Sharif H Ellozy
Transradial access has been described in a variety of clinical contexts but has been rarely utilized for visceral artery interventions and during complex endovascular aortic aneurysm repair (EVAR) when upper extremity access is required. This is usually accomplished via brachial artery access, and although brachial access is generally safe and effective, radial access may offer some benefits with regard to patient comfort and potential complications. Here we report a case of successful delivery of a renal snorkel via a radial artery approach during EVAR...
January 1, 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28769816/signal-reconstruction-of-pulmonary-vein-recordings-using-a-phenomenological-mathematical-model-application-to-pulmonary-vein-isolation-therapy
#16
Harry D Green, Glyn Thomas, John R Terry
Atrial fibrillation (AF), the most prevalent cardiac arrhythmia, is commonly initiated by ectopic beats originating from a small myocardial sleeve extending over the pulmonary veins. Pulmonary vein isolation therapy attempts to isolate the pulmonary veins from the left atrium by ablating tissue, commonly by using radiofrequency ablation. During this procedure, the cardiologist records electrical activity using a lasso catheter, and the activation pattern recorded is used as a guide toward which regions to ablate...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28768974/platypnea-orthodeoxia-syndrome-induced-by-an-infected-giant-hepatic-cyst
#17
Ji Hyun Sung, Haruki Uojima, Joel Branch, Sho Miyazono, Izumi Kitagawa, Makoto Kako, Shuzo Kobayashi
An 83-year-old man was admitted with a chief complaint of exacerbation of dyspnea. His blood oxygen saturation was 90% in the recumbent position despite oxygen therapy, and it dropped to less than 80% when the patient attempted to sit upright. A computed tomography scan revealed a giant hepatic cyst compressing the right atrium and the inferior vena cava. After percutaneous drainage, the oxygen saturation improved and did not change with alteration of the patient's positions from recumbent to sitting or standing...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28768967/dabigatran-therapy-resulting-in-the-resolution-of-rivaroxaban-resistant-left-atrial-appendage-thrombi-in-patients-with-atrial-fibrillation
#18
Tetsuya Watanabe, Yukinori Shinoda, Kuniyasu Ikeoka, Tomoko Minamisaka, Hidetada Fukuoka, Hirooki Inui, Shiro Hoshida
Patients with persistent atrial fibrillation (AF) and a large left atrium are at a high risk for thromboembolisms. Recently, direct oral anticoagulants (DOACs) have mainly been used for the prevention of cardiac embolisms caused by AF. Transesophageal echocardiography (TEE) is performed in order to exclude any left atrial appendage (LAA) thrombi. We herein report two cases of persistent AF, both of which were treated with rivaroxaban for more than two years. Since TEE identified mobile LAA thrombi with this treatment, we switched from rivaroxaban to the direct thrombin inhibitor dabigatran...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28768966/multiple-giant-coronary-artery-aneurysms
#19
Hiroki Usuku, Sunao Kojima, Naoto Kuyama, Shinsuke Hanatani, Satoshi Araki, Kenichi Tsujita, Ryusuke Tsunoda, Toshihiro Fukui, Seiji Hokimoto
A 74-year-old man was admitted to our hospital with chest pain and dyspnea associated with ST elevation in leads II, III and aVF. An echocardiogram showed an enlarged mass lesion measuring nearly 80 mm. Coronary angiography showed two giant coronary artery aneurysms (CAAs) in the right coronary artery (RCA). CAAs were also seen in the left main trunk and left anterior descending artery. Computed tomography showed the CAA in the RCA was ruptured into the right atrium. We therefore diagnosed this patient with multiple CAAs, myocardial infarction and coronary artery rupture...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28767580/metastatic-cardiac-tumor-presenting-as-atrial-fibrillation-in-a-previously-healthy-woman-a-case-report
#20
Chi-Wen Cheng, Ning-I Yang, Koon-Kwan Ng, Wen-Jin Cherng
RATIONALE: Metastatic cardiac tumor (MCT) is rare in clinical practice. MCT presenting initially as atrial fibrillation (AF) is even rarer. PATIENT CONCERNS: We report a 47-year-old woman with no previous medical history presented with intermittent palpitation for 3 days. DIAGNOSES: The electrocardiography showed AF with rapid ventricular rate. The transthoracic echocardiography showed a 4 × 4 cm mass occupying the left atrium (LA)...
August 2017: Medicine (Baltimore)
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