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https://www.readbyqxmd.com/read/29453328/management-of-atrial-fibrillation-in-patients-with-rheumatic-mitral-stenosis
#1
REVIEW
Bernard Iung, Antoine Leenhardt, Fabrice Extramiana
Atrial fibrillation (AF) is frequent in patients with rheumatic mitral stenosis (MS). Pressure overload leads to marked structural and electrical remodelling of left atrium. The frequency of persistent AF increases with age and paroxysmal, asymptomatic, AF seems even more frequent. The occurrence of AF worsens the haemodynamic tolerance of MS and markedly increases the risk of thromboembolic events. AF has a negative impact on the natural history of MS and on its outcome after commissurotomy. The respective indications of rhythm and rate control should be adapted to patient characteristics, particularly the consequences of MS, and take into account the high risk of recurrence of AF...
February 16, 2018: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29449354/high-resolution-infrared-thermography-of-esophageal-temperature-during-radiofrequency-ablation-of-atrial-fibrillation
#2
Matthew G Daly, Iain Melton, Graham Roper, Gary Lim, Ian G Crozier
BACKGROUND: Catheter ablation for atrial fibrillation has potential to cause esophageal thermal injury. Esophageal temperature monitoring during ablation is commonly used; however, it has not eliminated thermal injuries, possibly because conventional sensors have poor spatial sampling and response characteristics. To enhance understanding of temperature dynamics that may underlie esophageal injury, we tested a high-resolution, intrabody, infrared thermography catheter to continuously image esophageal temperatures during ablation...
February 2018: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29447379/acute-exercise-is-not-cardioprotective-and-may-induce-apoptotic-signalling-in-heart-surgery-a-randomized-controlled-trial
#3
Benedikte T Smenes, Fredrik H Bækkerud, Katrine H Slagsvold, Erlend Hassel, Martin Wohlwend, Maria Pinho, Morten Høydal, Ulrik Wisløff, Øivind Rognmo, Alexander Wahba
OBJECTIVES: During open-heart surgery, the myocardium experiences ischaemia-reperfusion injury. A single bout of moderate, 30-min exercise induces preconditioning and protects the heart from ischaemia-reperfusion injury in rats, but this has never been investigated in humans. We aimed to investigate whether 1 bout of moderate exercise 24 h prior to surgery protects against mitochondrial and cardiac damage. METHODS: Patients scheduled for elective coronary artery bypass were eligible for this pilot study...
February 13, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29445225/atrial-fibrillation-characteristics-in-patients-on-haemodialysis-vs-peritoneal-dialysis
#4
Ran Abuhasira, Yuval Mizrakli, Avi Shimony, Victor Novack, Alla Shnaider, Yosef S Haviv
Atrial fibrillation (AF) is highly prevalent in dialysis patients, however whether its impact differs between patients on haemodialysis (HD) vs. peritoneal dialysis (PD) is unknown. We aimed to compare the association of AF and clinical outcomes in different dialysis modalities. We performed a population based retrospective cohort study, including adult patients who initiated dialysis between the years 2002 and 2015. Clinical, echocardiographic and laboratory data were reviewed and correlated with outcomes in HD vs...
February 14, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29440841/acquired-ventricular-septal-defect-due-to-infective-endocarditis
#5
Randi E Durden, Joseph W Turek, Benjamin E Reinking, Manish Bansal
Acquired intracardiac left-to-right shunts are rare occurrences. Chest trauma and myocardial infection are well-known causes of acquired ventricular septal defect (VSD). There have been several case reports describing left ventricle to right atrium shunt after infective endocarditis (IE). We present here a patient found to have an acquired VSD secondary to IE of the aortic and tricuspid valves in the setting of a known bicuspid aortic valve. This is the first case reported of acquired VSD in a pediatric patient in the setting of IE along with literature review of acquired left-to-right shunts...
January 2018: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/29440840/congenital-aneurysm-of-both-left-ventricle-and-left-atrium
#6
Ryan F Halas, Christopher J Schmehil, Gary R Ten Eyck, James L Loker
This is a case of both congenital left ventricular (LV) free wall submitral aneurysm and left atrial appendage aneurysm with 6 years of clinical follow-up. Each lesion is a rare entity, and to the best of our knowledge, this is the first case in medical literature of both lesions occurring in the same patient, raising the likelihood of a common etiology. The workup was initiated in the third trimester of fetal life with irregular heart rate and abnormal fetal ultrasound and echocardiogram at that time. The patient required emergent atrial appendage plication due to blood clot formation and suffered from multiple other complications including ventricular ectopy and surgically induced pseudoaneurysm...
January 2018: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/29438999/characteristics-of-single-loop-macroreentrant-biatrial-tachycardia-diagnosed-by-ultrahigh-resolution-mapping-system
#7
Takeshi Kitamura, Ruairidh Martin, Arnaud Denis, Masateru Takigawa, Alexandre Duparc, Anne Rollin, Antonio Frontera, Nathaniel Thompson, Gregoire Massoullié, Ghassen Cheniti, Michael Wolf, Konstantinos Vlachos, Claire A Martin, Nora Al Jefairi, Josselin Duchateau, Nicolas Klotz, Thomas Pambrun, Frédéric Sacher, Hubert Cochet, Meleze Hocini, Michel Haïssaguerre, Philippe Maury, Pierre Jaïs, Nicolas Derval
BACKGROUND: Biatrial tachycardia (BiAT) is a rare form of atrial macroreentrant tachycardia, in which both atria form a critical part of the circuit. We aimed to identify the characteristics and precise circuits of single-loop macroreentrant BiATs. METHODS AND RESULTS: We identified 8 patients (median age, 59.5 years old) with 9 BiATs in a cohort of 336 consecutive patients from 2 institutions who had undergone AT catheter ablation using an automatic ultrahigh-resolution mapping system...
February 2018: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29432561/sutureless-pericardial-marsupialization-for-the-repair-of-congenital-right-pulmonary-veins-atresia
#8
Yoshie Ochiai, Yusuke Ando, Shigehiko Tokunaga, Jun Muneuchi
We present a very rare case of isolated right pulmonary veins atresia in a 4-year-old girl. As the presence of a pulsatile blind pulmonary venous confluence adjacent to the left atrium was demonstrated by preoperative right pulmonary arterial wedge angiography, we applied sutureless pericardial marsupialization for the repair of right pulmonary veins atresia. She is currently 8 years old without pulmonary veins stenosis.
February 8, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29430747/left-atrial-rather-than-left-ventricular-impaired-mechanics-are-associated-with-the-pro-fibrotic-st2-marker-and-outcomes-in-heart-failure-with-preserved-ejection-fraction
#9
A I Nagy, C Hage, B Merkely, E Donal, J-C Daubert, C Linde, L H Lund, A Manouras
AIMS: Left ventricular (LV) mechanics have been extensively investigated in heart failure with preserved ejection fraction (HFpEF) overshadowing for a long time the potential role of left atrium (LA) in that setting. Soluble suppression of tumorigenicity-2 receptor (ST2) is a novel biomarker of pro-fibrotic burden in HF. We hypothesized that due to the thinner LA wall, the fibrotic myocardial changes in HFpEF as indicated by elevated ST2 levels might more readily be reflected by impairments in the LA rather than the LV performance...
February 12, 2018: Journal of Internal Medicine
https://www.readbyqxmd.com/read/29430653/regression-equations-for-calculation-of-z-scores-for-echocardiographic-measurements-of-left-heart-structures-in-healthy-han-chinese-children
#10
Shan-Shan Wang, Wen-Jing Hong, Yu-Qi Zhang, Shu-Bao Chen, Guo-Ying Huang, Hong-Yan Zhang, Li-Jun Chen, Lan-Ping Wu, Rong Shen, Yi-Qing Liu, Jun-Xue Zhu
OBJECTIVE: Clinical decision making in children with heart disease relies on detailed measurements of cardiac structures using two-dimensional and M-mode echocardiography. However, no echocardiographic reference values are available for the Chinese children. We aimed to establish z-score regression equations for left heart structures in a population-based cohort of healthy Chinese Han children. METHOD: Echocardiography was performed in 545 children with a normal heart...
February 12, 2018: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/29430240/high-grade-left-atrial-pleomorphic-sarcoma-case-report-and-review
#11
Martin Ignacio Zapata Laguado, Jonathan Orlando Palacios Rojas, Efraín Alonso Gómez Lopez, Martha Lucía Velasco Morales, Carlos Eduardo Orozco de la Hoz
Primary pleomorphic sarcoma of the left atrium is a rare tumor. There is no actual evidence of the management of this pathological entity, so the main treatment is individualized, surgical management being the cornerstone of the treatment. We present a 78-year-old female who had a clinical picture of heart failure, documenting an atrial mass of the left atrium, with high-grade pleomorphic sarcoma revealed in histopathology. The tumor was surgical removed, with no clinical evidence of residual mass. The tumor recurred again within 3 years, to which the patient succumbed...
September 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/29428663/shengmai-san-derived-herbal-prevents-the-development-of-a-vulnerable-substrate-for-atrial-fibrillation-in-a-rat-model-of-ischemic-heart-failure
#12
Jin Ma, Shiyu Ma, Chunxia Yin, Huanlin Wu
OBJECTIVE: The study aimed to investigate whether a Shengmai San-derived herbal, Fumai granule (FM), which had a preventive effect on atrial fibrillation (AF) in myocardial infarction (MI)-induced heart failure (HF) rat and to determine the underlying mechanisms. DESIGN AND METHODS: MI was induced by a ligation of the left anterior descending coronary artery. One week after MI surgery, FM was gavaged for 4 weeks. AF inducibility was detected by transesophageal programmed electrical stimulation technology...
February 8, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29425537/-superior-vena-cava-thrombosis-or-stricture-secondary-to-implanted-central-venous-access-six-cases-of-endovascular-and-direct-surgical-treatment-in-cancer-patients
#13
J M Fichelle, V Baissas, S Salvi, J N Fabiani
Superior vena cava (SVC) stenosis or thrombosis is a well-known complication of central venous catheterization for endocavitary treatments, hemodialysis, or chemotherapy. In cancer patients, these SVC lesions are often symptomatic due to intimal damage and chemotherapy toxicity. We report our experience with six patients treated between 2007 and 2012 via an endovascular approach (n=5) or a direct surgical approach (n=1). All patients had SVC syndrome with facial edema, headache and upper limb edema. In three cases, the catheter was in place when the clinical symptoms occurred...
February 2018: Journal de Médecine Vasculaire
https://www.readbyqxmd.com/read/29423153/cardiac-tamponade-communicating-with-a-posterior-mediastinal-chylocele-after-esophagectomy
#14
Shin-Ichi Kosugi, Takehisa Hashimoto, Yo Sato, Kenichiro Hirano, Eiji Sunami, Takeaki Matsuzawa, Motoko Takahashi, Hiroshi Ichikawa
A 75-year-old male received neoadjuvant chemotherapy for locally advanced squamous cell carcinoma of the mid-thoracic esophagus, followed by right transthoracic esophagectomy with extended mediastinal lymphadenectomy. Cardiac tamponade developed on postoperative Days 1 and 13, for which emergency ultrasound-guided drainage was required. Pericardial drainage fluid became chylous after administration of polymeric formula. A computed tomography scan demonstrated the presence of a retrocardiac fluid collection, encompassed by the left pulmonary vein and left atrium, descending aorta and vertebral column...
October 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/29417409/a-new-method-of-ct-for-the-cardiac-measurement-correlation-of-computed-tomography-measured-cardiac-parameters-and-pulmonary-obstruction-index-to-assess-cardiac-morphological-changes-in-acute-pulmonary-embolism-patients
#15
Zhi-Jun Guo, Hai-Tao Liu, Ze-Mei Bai, Qiang Lin, Bao-Hong Zhao, Qian Xu, Yan-Hong Zeng, Wen-Qiu Feng, Hai-Tao Zhou, Fei Liang, Ji-Yan Cui
Acute pulmonary embolism (APE) is a serious disease which is life-threatening. Since it is crucial for APE patients to assess the changes of cardiac function safely and timely, the imaging research of cardiac morphology and function is becoming more and more important. The correlation of computed tomography (CT) measured cardiac parameters and pulmonary obstruction index (POI) was analyzed to discuss the morphological changes of the heart of APE patients in order to provide a new method to evaluate cardiac functions accurately and effectively...
February 7, 2018: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/29416208/gigantic-thrombus-of-the-left-atrium-in-mitral-stenosis
#16
Enisa Hodzic, Nermir Granov
Introduction: Excess dilatation of the left atrium >65 mm is known in the literature as gigantic atrium. This dilation is most commonly encountered in the mitral insufficiency of rheumatic etiology, but also in severe prolapses of the mitral valve, permanent atrial fibrillation, and at the left right shunt with cardiac insufficiency. Case report: In this paper is presented a case study of echocardiographically verified giant thrombus in left atrium in a 50 years old female patient aged 50 hospitalized because of tiredness, choking, heartburn and urinary tract symptoms...
December 2017: Medical Archives
https://www.readbyqxmd.com/read/29411430/giant-left-atrium
#17
Xiaojun Xie, Jiao Bai
No abstract text is available yet for this article.
February 6, 2018: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/29411336/central-sleep-apnea-with-cheyne-stokes-breathing-in-heart-failure-from-research-to-clinical-practice-and-beyond
#18
K Terziyski, A Draganova
Characterized by periodic crescendo-decrescendo pattern of breathing alternating with central apneas, Central sleep apnea (CSA) with Cheyne-Stokes Breathing represents a highly prevalent, yet underdiagnosed comorbidity in chronic heart failure (CHF). A diverse body of evidence demonstrates increased morbidity and mortality in the presence of CSB. CSB has been described in both CHF patients with preserved and reduced ejection fraction, regardless of drug treatment. Risk factors for CSB are older age, male gender, high BMI, atrial fibrillation and hypocapnia...
February 7, 2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29409129/successful-management-of-a-rare-type-of-complex-myxofibrosarcoma-which-affected-right-lung-and-invading-into-the-left-atrium-under-the-guidance-of-multimode-image
#19
Heng Zhang, Da Zhu, Li Dong
Myxofibrosarcoma is a rare type of highly malignant sarcoma which easily occur lung metastasis. We report a rare metastatic myxofibrosarcoma which generated from the upper and middle lobe of the lung, invading the right superior pulmonary vein, extending to the left atrium. A single imaging examination may lead to misdiagnosis, so the combination of computed tomography imaging, magnetic resonance imaging, as well as positron emission tomographic scan are necessary for perioperative diagnosis and surgical planning...
February 2018: Echocardiography
https://www.readbyqxmd.com/read/29408677/the-evaluation-of-shortness-of-breath-after-atrial-fibrillation-ablation-is-there-a-stiff-left-atrium
#20
Yogesh N V Reddy, Abdallah El-Sabbagh, Douglas Packer, Rick A Nishimura
No abstract text is available yet for this article.
February 1, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
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